U.S. patent application number 11/517856 was filed with the patent office on 2008-03-13 for deodorizing toilet seat assembly.
This patent application is currently assigned to Brondell, Inc.. Invention is credited to Scott Pinizzotto.
Application Number | 20080060119 11/517856 |
Document ID | / |
Family ID | 39157961 |
Filed Date | 2008-03-13 |
United States Patent
Application |
20080060119 |
Kind Code |
A1 |
Pinizzotto; Scott |
March 13, 2008 |
Deodorizing toilet seat assembly
Abstract
A deodorizing toilet seat assembly includes a seat, a pod
housing a fan, a deodorizer, a sensor and a timer. A seat may be a
heated seat. User seating activates the fan, and the timer may stop
the fan a set time after the user rises from the seat. The
deodorizer deodorizes air drawn by the fan, to which air fragrance
and aroma may be added. Control or sensor signals may be
electrical, optical, sonic, or other signals. Wiring may pass
through a hinge connecting the pod and the seat or lid. Methods to
deodorize air from a toilet include steps of providing an assembly
with a seat, pod, fan, timer and deodorizer; activating a fan and a
timer, contacting air with a deodorizer and optionally a fragrance
or aroma dispenser, effective to improve the quality of the air and
optionally provide fragrance or aroma to the air.
Inventors: |
Pinizzotto; Scott; (San
Francisco, CA) |
Correspondence
Address: |
HELLER EHRMAN LLP
275 MIDDLEFIELD ROAD
MENLO PARK
CA
94025-3506
US
|
Assignee: |
Brondell, Inc.
San Francisco
CA
|
Family ID: |
39157961 |
Appl. No.: |
11/517856 |
Filed: |
September 8, 2006 |
Current U.S.
Class: |
4/217 |
Current CPC
Class: |
E03D 9/005 20130101;
A47K 13/302 20130101; A47K 13/307 20130101 |
Class at
Publication: |
4/217 |
International
Class: |
E03D 9/04 20060101
E03D009/04; A47K 13/00 20060101 A47K013/00 |
Claims
1. An assembly for use with a toilet, said toilet having a toilet
bowl with a lip, wherein said assembly comprises: a toilet seat
configured to be disposed over said toilet bowl lip, thereby
defining a gap between at least a portion of said lip and at least
a portion of said seat; a sensor configured for detecting the
presence of a user; a pod connected to the toilet seat and
configured to mount on said toilet bowl, said pod having an air
inlet, an air outlet, and a hinge; said air inlet being disposed
adjacent said gap between the toilet seat and the toilet bowl lip
when said pod is mounted on said toilet bowl, the air inlet being
configured to accept air from the toilet bowl, and said hinge being
configured to connect the toilet seat with the pod effective to
allow relative motion between the toilet seat and the pod, the
hinge comprising electrical connection means; a fan disposed to
draw air into said air inlet when operating; a deodorizer not in
contact with said fan and disposed to receive air drawn from said
air inlet by the fan; a dispenser not in contact with the fan and
disposed to receive air that has contacted or passed by or through
said deodorizer and to condition said air; a power source; a switch
operably connected with the fan, the sensor and said power source;
said electrical connection means connecting said sensor with said
switch; a timer configured to provide a timing function and
operably connected with said switch; said switch being configured
upon activation to initiate said timing function of said timer and
to initiate operation of said fan for a time period determined by
said timer, effective that operation of the fan draws air from the
toilet bowl through the air inlet effective to contact the
deodorizer to provide deodorized air, and effective that said
deodorized air contacts said dispenser to provide conditioned air
to said air outlet effective to improve the quality of air from the
toilet bowl.
2. The assembly of claim 1, wherein said dispenser disposed to
receive air that has contacted or passed by or through the
deodorizer is selected from an aromatherapy aroma dispenser
configured to provide aromatherapy aroma to air, a fragrance
dispenser configured to provide fragrance to air, and both an
aromatherapy dispenser configured to provide aromatherapy aroma to
air and a fragrance dispenser configured to provide fragrance to
air, effective to condition said air and to improve the quality of
said air from the toilet bowl.
3. The assembly of claim 1, wherein said sensor configured for
detecting the presence of a user is disposed on or in an assembly
element selected from the seat, the lid, and the pod.
4. The assembly of claim 3, wherein said sensor configured for
detecting the presence of a user is disposed on or in the seat.
5. The assembly of claim 1, further comprising a lid and means for
preventing abrupt closure of said lid.
6. The assembly of claim 1, wherein said pod is configured to
reduce the likelihood of water entering said pod or to reduce the
likelihood of water remaining within the pod, or both.
7. The assembly of claim 6, wherein said pod comprises elements
selected from the group of elements consisting of one or more of:
an air inlet having sloped surfaces effective to encourage water to
drip out of the pod; an air inlet comprising a front edge, said
front edge being extended downward effective to block potential
splash-back from inside the toilet and effective to direct dripping
liquids back into the bowl; an air inlet having a lip along the
outer edge configured to reduce the likelihood of water coming up
and over that edge; and an air outlet having sloped surfaces
effective to encourage water to drip out of the pod.
8. The assembly of claim 1, said assembly comprising anti-microbial
materials.
9. The assembly of claim 1, wherein said exposed surfaces are
smooth and rounded surfaces effective to facilitate cleaning and
inhibit deposition of dirt thereon.
10. An assembly for use with a toilet, said toilet having a toilet
bowl with a lip, wherein said assembly comprises: a toilet seat
comprising a heating element and configured to be disposed over
said toilet bowl lip, thereby defining a gap between at least a
portion of said lip and at least a portion of said seat; a sensor
configured for detecting the presence of a user on said toilet
seat; a pod connected to the toilet seat and configured to mount on
said toilet bowl, said pod having an air inlet, an air outlet, and
a hinge; said air inlet being disposed adjacent said gap between
the toilet seat and the toilet bowl lip when said pod is mounted on
said toilet bowl, the air inlet being configured to accept air from
the toilet bowl; said hinge being configured to connect the toilet
seat with the pod effective to allow relative motion between the
toilet seat and the pod, the hinge comprising electrical connection
means; a fan disposed to draw air into said air inlet when
operating; a deodorizer not in contact with said fan and disposed
to receive air drawn from said air inlet by the fan; a dispenser
not in contact with the fan and disposed to receive air that has
contacted or passed by or through said deodorizer and to condition
said air; a power source; a switch operably connected with the fan,
the sensor and said power source by said electrical connection
means; said electrical connection means being configured to connect
said heating element and said power source; a timer configured to
provide a timing function and operably connected with said switch;
said switch being configured upon activation to initiate said
timing function of said timer and to initiate operation of said fan
for a time period determined by said timer, effective that
operation of the fan draws air from the toilet bowl through the air
inlet effective to contact the deodorizer to provide deodorized
air, and effective that said deodorized air contacts said dispenser
to provide conditioned air to said air outlet effective to improve
the quality of air from the toilet bowl.
11. The assembly for use with a toilet of claim 10, wherein said
dispenser disposed to receive air that has contacted or passed by
or through the deodorizer is selected from an aromatherapy aroma
dispenser configured to provide aromatherapy aroma to air, a
fragrance dispenser configured to provide fragrance to air, and
both an aromatherapy dispenser configured to provide aromatherapy
aroma to air and a fragrance dispenser configured to provide
fragrance to air, effective to condition said air and to improve
the quality of said air from the toilet bowl.
12. The assembly of claim 10, wherein said sensor configured for
detecting the presence of a user is disposed on or in an assembly
element selected from the seat, the lid, and the pod.
13. The assembly of claim 12, wherein said sensor configured for
detecting the presence of a user is disposed on or in the seat.
14. The assembly of claim 10, further comprising a lid and means
for preventing abrupt closure of said lid.
15. The assembly of claim 10, wherein said pod is configured to
reduce the likelihood of water entering said pod or to reduce the
likelihood of water remaining within the pod, or both.
16. The assembly of claim 15, wherein said pod comprises elements
selected from the group of elements consisting of one or more of:
an air inlet having sloped surfaces effective to encourage water to
drip out of the pod; an air inlet comprising a front edge, said
front edge being extended downward effective to block potential
splash-back from inside the toilet and effective to direct dripping
liquids back into the bowl; an air inlet having a lip along the
outer edge configured to reduce the likelihood of water coming up
and over that edge; and an air outlet having sloped surfaces
effective to encourage water to drip out of the pod.
17. The assembly of claim 10, said assembly comprising
anti-microbial materials.
18. The assembly of claim 10, wherein said exposed surfaces are
smooth and rounded surfaces effective to facilitate cleaning and
inhibit deposition of dirt thereon.
19. The assembly of claim 10, wherein said sensor is disposed in or
on the toilet seat, and said electrical connection means connect
the sensor with the switch.
20. The assembly of claim 10, further comprising a temperature
control element effective to control the temperature of said seat
comprising a heating element.
21. The assembly of claim 20, further comprising a temperature
sensor effective to detect the temperature of said seat or said
heating element.
22. A method of deodorizing air in the vicinity of a toilet, said
method comprising: providing an assembly for use with a toilet of
claim 1; activating said fan; and initiating said timing function
of said timer, effective to draw air from said bowl through said
inlet to contact said deodorizer and said dispenser for a time
period determined by said timer, effective to deodorize and
condition said air effective to improve the quality of the air from
the toilet bowl.
23. A method of deodorizing air in the vicinity of a toilet, said
method comprising: providing an assembly for use with a toilet of
claim 10; activating said fan; and initiating said timing function
of said timer, effective to draw air from said bowl through said
inlet to contact said deodorizer and said dispenser for a time
period determined by said timer, effective to deodorize and
condition said air effective to improve the quality of the air from
the toilet bowl.
24. The method of claim 22, wherein said dispenser is selected from
an aromatherapy aroma dispenser, a fragrance dispenser, or
both.
25. The method of claim 23, wherein said dispenser is selected from
an aromatherapy aroma dispenser, a fragrance dispenser, or
both.
26. The assembly of claim 1, wherein said sensor configured to
detect the presence of a user is selected from the group of sensors
consisting of a weight sensor, an infra-red sensor, an ultrasound
sensor, a temperature sensor, a motion sensor, a capacitative
sensor, a pressure sensor, and a strain sensor.
27. The assembly of claim 10, wherein said sensor configured to
detect the presence of a user on the toilet seat is selected from
the group of sensors consisting of a weight sensor, an infra-red
sensor, an ultrasound sensor, a temperature sensor, a motion
sensor, a capacitative sensor, a pressure sensor, and a strain
sensor.
Description
FIELD OF THE INVENTION
[0001] This invention relates to toilets and components,
accessories, and devices related to toilets.
BACKGROUND OF THE INVENTION
[0002] Toilets are devices that are often used on a daily basis.
With such frequent use, the comfort, odor, and convenience of
toilets are important to users of these devices. Removal or
diminution of odors is often desired by users of a toilet. The
comfort of the seat of a toilet is an important determinant of the
comfort and convenience of use of these devices. The ease of use,
including ease of raising and lowering a toilet lid or toilet seat
are also important to users of these devices. Thus, there is need
for devices, systems and methods providing comfortable seats,
easily used lids and seats, and for removing, or reducing the
amount of, odors associated with a toilet.
SUMMARY OF THE INVENTION
[0003] Devices, assemblies, systems and methods for ameliorating,
reducing or eliminating odors associated with a toilet, for
improving the opening and closing of a toilet, for improving the
action of opening or closing a toilet seat, and for otherwise
making the use of a toilet easier or more pleasant, are
provided.
[0004] An embodiment of an assembly for use with a toilet having
features of the invention includes a toilet seat configured to be
disposed over a toilet bowl lip, thereby defining a gap between at
least a portion of the lip and at least a portion of the seat; a
sensor for detecting the presence of a user on the toilet seat, the
sensor optionally being disposed in or on the toilet seat, lid,
pod, or elsewhere; a pod connected to the toilet seat and
configured to mount on the toilet bowl, the pod having an air
inlet, an air outlet, and a hinge; the air inlet being disposed
adjacent the gap between the toilet seat and the toilet bowl lip
when the pod is mounted on the toilet bowl, and the hinge being
configured to connect the toilet seat with the pod, allowing the
toilet seat and the pod to move relative to one another, the hinge
including electrical connection means; a fan disposed to draw air
into said air inlet when operating; a deodorizer not in contact
with the fan and disposed to receive air drawn from the air inlet
by the fan; a dispenser not in contact with the fan and disposed to
receive air that has contacted or passed by or through the
deodorizer and to condition the air; a power source; a switch
operably connected with the fan, the sensor and said power source;
the electrical connection means connecting the sensor with the
switch; a timer configured to provide a timing function and
operably connected with the switch; the switch being configured
upon activation to initiate the timing function of the timer and to
initiate operation of the fan for a time period determined by the
timer, effective that operation of the fan draws air from the
toilet bowl through the air inlet effective to contact the
deodorizer to provide deodorized air, and effective that the
deodorized air contacts the dispenser to provide conditioned air to
the air outlet effective to improve the quality of air from the
toilet bowl.
[0005] The toilet seat may include a heating element effective to
heat the seat. The sensor may be disposed on or in the seat; in or
on the lid; in or on the pod; or elsewhere. The assembly may
include temperature control elements, and temperature sensing
elements, effective to control the temperature of a seat having a
heating element.
[0006] Thus, in an embodiment, provided herein is an assembly for
use with a toilet, the assembly including a toilet seat; an air
inlet disposed adjacent the gap between the seat and the lip of the
toilet bowl; a fan; a deodorizer; a pod including power and control
elements; and a sensor for detecting the presence of a user. An air
inlet provides a pathway for air to follow from the toilet bowl to
a deodorizer and optionally other elements. A deodorizer may be,
e.g., an air filter, and is effective to deodorize air, e.g., by
removing or inactivating odors. The fan and deodorizer may be
disposed so that each does not contact the each other, but are
instead disposed near to each other effective that air impelled by
a fan contacts the deodorizer. The deodorizer is configured to
deodorize air from the toilet bowl. The fan is disposed effective
to withdraw air from the bowl through the air inlet effective to
contact a deodorizer (and optionally by or through other elements).
The fan may operate for a time period determined by a timer.
[0007] These elements are operably connected effective that
detection of the presence of a user seated on the toilet seat
starts the fan operating to withdraw air from the toilet bowl into
the air inlet to the deodorizer so that the withdrawn air is
deodorized. In this way, the quality of the air is improved.
[0008] Systems and assemblies having features of the invention may
include a lid; an element adding fragrance to the air; an element
adding aromatherapy aroma to the air; a timer to control the
duration of fan operation; control elements; status indicators; and
other elements. A switch may be provided that is operably connected
with a fan, or with a fan and with a sensor, by the wiring means. A
timer may be configured to provide a timing function and that is
operably connected with a switch. Such a switch may be configured,
upon activation, to initiate operation of a fan, to initiate a
timing function of a timer, or both. A hinge is provided that is
configured to engage the seat and lid allowing relative motion
between the seat, the lid, and the toilet bowl. The hinge includes
wiring means effective to allow passage of wires, or passage of
electrical signals, via the hinge. Materials and coatings used in
constructing the systems and assemblies disclosed herein may be
antimicrobial materials, such as antimicrobial resins, plastics,
and coatings. Wiring means include any means for carrying
electrical, optical, sonic, or other signals, and need not include
physical connection between elements.
[0009] Devices, assemblies, and systems having features of the
invention may optionally include a fragrance dispenser, an
aromatherapy aroma dispenser, or both. A fragrance dispenser may be
a fragrance cartridge, and an aromatherapy aroma dispenser may be
an aromatherapy cartridge. A fragrance dispenser or an aromatherapy
cartridge may be operably connected with an inlet means, and may be
disposed to receive air that has contacted a deodorizer. A
fragrance dispenser and an aromatherapy cartridge are preferably
not in direct contact with a fan. Such dispensers are effective to
provide fragrance and to provide aromatherapy aroma to the air
removed from the toilet bowl and adjacent to the toilet bowl.
[0010] Wiring or conductive elements connecting the pod (which may
contain a power source, controls, sensors, or other elements) and
the seat or lid (which may include sensors, switches, heating
elements, or other elements) may pass along, adjacent to, or
through a hinge or hinges connecting the pod and the seat or lid.
Such wiring or conductive elements are configured to accommodate
movement between a pod and a lid or seat. Such wiring or conductive
elements are thus effective to maintain electrical continuity
during or after rotation, sliding, flexing, or other relative
motion between the pod and a seat or lid. In embodiments, signals
may be carried by optical means (e.g., with fiber optic
connections, or by infrared signals without physical connections),
by ultrasonic means, or by other means, between a sensing element
and another element, or between a control element and another
element.
[0011] The devices, assemblies and systems may include means for
preventing abrupt closure of a lid or abrupt contact between a
toilet seat and a toilet bowl. For example, mechanical, magnetic,
hydraulic, pneumatic, piezoelectric, or other damping means
effective to reduce the speed of closure, or to provide a braking
function, or otherwise to preventing abrupt closure of a lid or
abrupt contact between a toilet seat and toilet bowl may be
provided.
[0012] A pod may include a pod housing enclosing some or all
elements and assemblies that provide air-flow, deodorizing,
fragrance, aromatherapy aroma, timing, power, control, indications
of status or operation, mechanical adjustment or alteration of
hinge motion, and other features of the devices, assemblies and
systems disclosed herein. In embodiments, deodorizing elements and
aromatherapy elements may be disposed within the pod housing, or
may be mounted on or to the pod housing. A pod housing may have an
air inlet configured to allow air flow from within a toilet bowl
into the pod housing so that such air contacts, flows by, or flows
through deodorizing elements and optionally aromatherapy elements.
A pod housing may have an air vent configured to allow exit of air
flowing into the pod housing. An air inlet and a vent may have
sloped surfaces effective to encourage water or fluid to drip out
of the pod. In embodiments, such sloped surfaces may extend
downwardly effective to block potential splash-back of fluid from
inside the toilet and effective to direct dripping fluids back into
the bowl. A pod housing may have a lip or multiple lips along a
perimeter configured to reduce the likelihood of water or fluids
entering the pod housing, or to reduce the amount of time such
water or fluid may remain within the pod housing.
[0013] Methods of deodorizing and of deodorizing and conditioning
(adding fragrance or aromatherapy aroma to air) air in the vicinity
of a toilet are also disclosed herein. In an embodiment, a method
of deodorizing air in the vicinity of a toilet includes the steps
of providing an assembly for use with a toilet having features of
the invention; activating a fan; activating a timer, effective to
draw air from said bowl through said inlet to contact said
deodorizer for a time period determined by the timer, effective to
improve the quality of said air from the toilet bowl. In further
embodiments, a method of deodorizing air in the vicinity of a
toilet comprises providing an assembly for use with a toilet, the
assembly having features of the invention; activating a fan;
activating a timer, effective to draw air from a toilet bowl
through an air inlet to contact a deodorizer and a dispenser for a
time period determined by the timer, effective to deodorize and
condition the air effective to improve the quality of the air from
the toilet bowl. A dispenser may be selected from an aromatherapy
aroma dispenser, a fragrance dispenser, or both. An assembly having
features of the invention may have a toilet seat having a sensor
configured to sense the presence of a user seated on the toilet
seat, may have a toilet seat comprising a heating element, or
both.
[0014] The systems, assemblies, devices and methods disclosed
herein are effective to deodorize and condition air from a toilet
bowl, and provide the advantages of improving air quality and
improving user comfort with respect to the use of a toilet.
BRIEF DESCRIPTION OF THE FIGURES
[0015] FIGS. 1A, 1B, 1C, 1D and 1E provide schematic views of
assemblies and systems having features of the invention. FIG. 1A
shows a toilet assembly having features of the invention in
operable position in place on a toilet bowl with the seat and lid
in down (closed) positions. FIG. 1B shows a toilet assembly having
features of the invention in operable position in place on a toilet
bowl with the lid up (open) and the seat down (closed). FIG. 1C
shows a toilet assembly having features of the invention in
operable position in place on a toilet bowl with seat and lid in up
(open) positions. FIG. 1D is a rear schematic view of a toilet
assembly having features of the invention in operable position in
place on a toilet bowl with seat and lid in down (closed)
positions, providing an alternative view of a pod of the assembly
having features of the invention. FIG. 1E is a schematic view of a
toilet assembly having features of the invention with seat and lid
in up (open) positions, providing an alternative view showing an
air inlet of a pod having features of the invention.
[0016] FIG. 2 is an exploded schematic view of an assembly having
features of the invention showing elements of the assembly.
[0017] FIG. 3A is an exploded schematic view of a pod having
features of the invention with the pod lid removed, illustrating
internal elements of the pod, including a fan and a deodorizer.
FIG. 3B is an exploded schematic view of a pod having features of
the invention shown in an upside-down orientation with the pod
bottom facing up. FIG. 3C is an detailed view of a portion of a
hinge element having features of the invention. FIG. 3D is a
schematic view of a pod having features of the invention with the
lid removed, illustrating internal elements of the pod including a
fan, a deodorizer, and an aromatherapy cartridge.
[0018] FIG. 4A is a schematic view of a portion of a pod having
features of the invention. FIG. 4B is a schematic cross-sectional
view of a portion of a pod, seat and lid having features of the
invention, shown in position on a toilet.
[0019] FIG. 5 is a schematic, partially cut-away view of a system
and assembly having features of the invention including a heated
seat.
DETAILED DESCRIPTION OF THE INVENTION
[0020] The devices, systems and methods disclosed herein are
effective to improve the quality of air from a toilet bowl, and to
deodorize air from a toilet bowl, to provide fragrance to air from
a toilet bowl, and to provide aromatherapy treatment to air from a
toilet bowl. The devices, systems and methods disclosed herein also
provide improved user comfort and ease of use of a toilet, toilet
seat and lid, and optionally provide heated toilet seat to further
improve user comfort.
[0021] In one embodiment, a system and assembly are provided which
include a battery powered deodorizing toilet seat with optional
aromatherapy feature, including a toilet seat (lid and seat) plus a
fan, battery pack, deodorizing filter, soft-close toilet seat and
lid, and an optional aromatherapy dispenser. A fragrance dispenser
is further optionally provided in embodiments having these features
of the invention.
[0022] In a further embodiment, a system and assembly are provided
which include an alternating current (AC)-powered, heated,
deodorizing toilet seat with optional aromatherapy feature
including a toilet seat (lid and seat) plus a fan, AC power,
deodorizing filter, temperature adjustable heating element in the
seat, soft-close toilet seat and lid, and an optional aromatherapy
dispenser. A fragrance dispenser is further optionally provided in
embodiments having these features of the invention.
[0023] Definitions
[0024] As used herein, the term "or" includes "and" as well as
indicating that one or another of possible alternatives are
indicated. Thus, the phrase "A or B" indicates all of the
following: A alone, B alone, and both A and B together.
[0025] As used herein, a "toilet" includes a bowl and plumbing
connections effective to integrate the toilet with an external
sewage and plumbing system to provide water inflow and sewage
outflow, and may include other elements, such as a tank, handle,
and other elements. It will be understood that the plural form
(e.g. "toilets") and other related variants of this and of
subsequently defined terms are also included in these
definitions.
[0026] The terms "toilet" and "toilet bowl" will be understood to
include a standard toilet (the entire assembly) having a toilet
bowl (the receptacle portion) that is configured for the collection
and removal of human waste, and also applies to a bidet or
seat-bidet type toilet, in which a spray device is provided for
personal cleaning. Thus, as used herein, unless otherwise limited,
the term "toilet" will be taken to include a toilet, a bidet, and a
seat-bidet type toilet, and, although a nozzle or other spray
device may not be mentioned in the following discussion, it will be
understood that embodiments of the devices, assemblies and systems
disclosed herein may also include spray devices to provide a
bidet-type function in addition to other embodiments disclosed
herein.
[0027] As used herein in conjunction with a toilet (as defined
above), the term "assembly" refers to a device or system that is
configured to be used with a toilet. For example, a toilet assembly
may include a seat, a lid, a fan, a deodorizer, an aromatherapy
aroma dispenser and associated equipment (which may, e.g., be
housed in an "pod") that is configured to be attached to a toilet,
atop a toilet bowl, and to provide a seat for use of the toilet by
a user.
[0028] As used herein, a "toilet assembly" is an element or set of
elements configured for use with a toilet, and may be a seat
configured for use with a toilet; a seat and lid combination; a
seat, lid and accessory pod combination; a seat, lid, deodorizer
and accessory pod combination; and other elements and combinations
of elements configured for use with a toilet.
[0029] The term "toilet accessory" refers to an element or device
for use with a toilet. Accessories for use with a toilet may
include a toilet seat, a lid, a fan, a deodorizer, an aromatherapy
dispenser, or other elements.
[0030] As used herein the term "deodorize" refers to the act of
reducing or eliminating odor as perceived by a human observer;
e.g., to improve the quality of air. A "deodorizer" is a device,
element, or combination that is effective to reduce or remove
odors, scents, odor-causing materials, vapors or fluids, from air
(e.g., passing air) or a region or volume adjacent or in contact
with the deodorizer. Air that has passed by, or through, or
contacted a deodorizer has been "deodorized" and may be termed
"deodorized air."
[0031] A deodorizer such as a deodorizing filter is a device that
removes, alters, and/or masks the odor from odor-causing molecules
or materials. Deodorizing filters may include active ingredients
that remove or inactivate odor-causing materials, and may include
passive elements and ingredients that primarily trap or impede the
flow of odor-causing materials.
[0032] As used herein, "fragrance" refers to an odor added to the
air that is typically found to be pleasant to the sense of smell of
a subject. A fragrance may be termed a fragrance, a scent, an odor,
a smell, or may be referred to by other such term.
[0033] As used herein, "aromatherapy", "aromatherapy aroma", and
"aroma" refer to a chemical, compound or material, whether gaseous,
vaporous, particulate, or otherwise, added to the air and believed
to have an effect on a subject. Such an effect may be believed to
be an effect on the mood, temperament, or emotional state of a
subject, may be an effect on the physiological state of a subject,
or both. An aromatherapy aroma may or may not have a detectable
odor. Thus, an aroma differs from a fragrance in that an aroma is
believed to have an effect on a subject in addition to any possible
pleasurable sensation that may be derived from the detection of any
odor of the aroma.
[0034] As discussed herein, a "dispenser" such as a "fragrance
dispenser", a "fragrance cartridge", an "aromatherapy dispenser",
an "aromatherapy cartridge", or similarly termed devices, elements
or combinations may be used to store and dispense aromas or
fragrances. To "dispense" aromas or fragrances is to provide aromas
or fragrances to air, that is, to add such aromas or fragrances to
air. A dispenser or cartridge may be configured to store and
dispense both an aroma and a fragrance. Such a dispenser or
cartridge is thus capable of providing aromas and fragrances to air
that contacts, passes over, or passes through the dispenser or
cartridge. Such aromas and fragrances may provide pleasant
sensations, or mask unpleasant odors, or produce advantageous
effects in a person exposed to air that has been in contact with
such a cartridge or dispenser.
[0035] As used herein, to "condition" air refers to adding
fragrance or aromatherapy aroma to air. Air that has been
conditioned ("conditioned air") is air to which fragrance or
aromatherapy aroma has been added. Conditioned air may have been
first deodorized.
[0036] As used herein, the term "sensor" is used to signify a
device, element or combination effective to detect a target action
or event. Such detection may be by any suitable means. For example,
strain gauges, switches, motion detectors, photoelectric cells,
temperature sensors, hydraulic devices, devices that measure
electrical conductivity, electromagnetic fields, or other
phenomena, all may be used in a sensor configured to detect the
presence of a user on a toilet seat. In embodiments, a sensor may
also provide a signal indicating that the target event has been
detected or that the target action has occurred.
[0037] As used herein, the term "fan" indicates a device for moving
air or inducing airflow. Although typical fans include rotating
blades or vanes that cause air to flow, any other means of moving
air in a desired direction is included in the term.
[0038] As used herein, the term "timer" is used to indicate a
device, element, or combination effective to detect and measure the
passage of time after a triggering event. A timer may be an
electrical or electronic, mechanical, or other device, and may be
included in electronic circuits which may or may not also provide
other functions.
[0039] As used herein, the term "power" refers to energy available
to do work, and is typically electrical power. A "power supply" is
a device, assembly, or means to provide power, and may be or
include, e.g., a battery, a cable with a plug configured to engage
a standard wall socket and to carry alternating current (AC)
electricity, an electrical assembly configured to receive AC to
provide either AC or direct current (DC), or other such element
known in the art. In embodiments, a power supply may include a
voltage regulator.
[0040] As used herein, the terms "electrical connection" and an
"electrical connection means" refer to wires, cables, traces,
conduits, or other conductors configured to provide a path for, and
to carry, electrical current, electrical power, electrical signals,
or other form of electricity. An electrical connection may be
static, e.g., a solder connection between a wire and a switch or
circuit board; may be flexible, e.g., a wire configured to bend or
flex; may be movable or sliding, e.g., a sliding contact between a
static element and a rotating element in a rotary switch, or other
connection or combination of such connections.
[0041] As used herein, the term "antimicrobial" refers to a
material or element that inhibits the growth and proliferation of
microbes, such as bacteria, mold, fungus, and other microscopic
organisms. A material that presents a substantially impenetrable
surface, that facilitates cleaning or removal of undesirable
organisms, or otherwise is resistant to microbial contamination,
may also be termed an antimicrobial material. Thus, an
antimicrobial material may kill or injure such undesirable
organisms, or may inhibit or slow their growth, or may facilitate
their removal (e.g., inhibit or prevent penetration of a surface by
such organisms, or inhibit their adherence to a surface), may
reduce their numbers, or may in these or other ways deter or reduce
the presence of undesirable organisms on or in a material. An
antimicrobial material may be an anti-microbial plastic, an
anti-microbial resin, or an anti-microbial coating, or other
material.
[0042] General Description:
[0043] A deodorizing toilet seat assembly as disclosed herein may
be used in place of an existing toilet seat on a standard toilet.
The toilet seat may be a heated toilet seat. Assemblies, devices,
and systems having features of the invention include an integrated
deodorizing module built into a "pod" disposed at the rear of the
seat. The deodorizing function may be automatically activated by
the act of a user sitting on the seat. The deodorizing function,
once activated, may be configured to stop automatically a certain
amount of time after the user gets off the seat. Deodorization may
be aided by action of a fan configured to draw air from the toilet
bowl. Air drawn by a fan may pass through a deodorizing filter. A
deodorizing filter may include activated charcoal, spun glass or
glass wool, fibers, and/or other filter materials effective to trap
or impede the passage of odors and particulates in air passing by,
over, or through the filter. In addition, a fragrance source, an
aromatherapy source, or both, may also contact the air that is
drawn to, into, and/or through the pod effective to add fragrances,
aromas, or other elements to the passing air. A filter, a fragrance
source, an aroma source, or some or all of these, may use no power
for its function, or may use power to, for example, power a heating
element, activate ionization elements, or to otherwise aid in
deodorizing or providing fragrance or aroma to the air.
[0044] In one embodiment, a toilet seat assembly with an accessory
pod and a hinged seat configured to mount on a toilet bowl is
provided. An assembly may include a lid also hinged to allow
opening and closing. Devices, assemblies, and systems having
features of the invention may be configured to deodorize air
removed from or near a toilet bowl, and may be configured to add
aromas, fragrances, or other elements to air removed from or near a
toilet bowl. A lid, a seat, or a lid and a seat may be configured
for "soft closing" (e.g., may be configured to close slowly, or for
the last part of the closing action to be slowed down or
cushioned).
[0045] A hinge may be operably connected with a seat or a lid, and
may include or provide a conduit or guide for wiring, or electrical
connections, effective to pass electrical signals or electrical
power between elements of the devices, assemblies and systems, such
as sensors, fans, power supplies, or other elements.
[0046] Wiring means include means for carrying electrical, optical,
sonic, or other signals, between elements. Electrically conductive
elements (e.g., wires or traces) operably connect a power source,
controls, sensors, and other elements in the pod with related
elements disposed in the seat or lid (such as, e.g., sensors,
switches, heating elements). Wiring and conductive elements
connecting the pod and the seat or lid may pass along, adjacent to,
or through a hinge or hinges connecting the pod and the seat or
lid. Such wiring or conductive elements are effective to maintain
electrical continuity during or after rotation, sliding, flexing,
or other relative motion between the pod and a seat or lid, and are
thus configured to accommodate movement between a pod and a lid or
seat. Such elements may include wires, traces, brushes, sliders,
and other connectors known in the art.
[0047] Optical wiring means may include fiber optic cables, light
pipes, light sources and light sensors, including infrared sources
and sensors, and other elements for passing and receiving optical
signals. Such optical wiring means need not carry or pass signals
by metal wires. Electromagnetic wiring means include infrared,
radiofrequency, microwave, or other electromagnetic, signaling
elements. Ultrasonic wiring means may include a source of
ultrasonic energy, and a receiver for ultrasonic energy, configured
to pass and receive sonic signals. Such ultrasonic wiring means
need not carry or pass signals by metal wires. Optical,
electromagnetic, and ultrasonic wiring means may be used to carry
signals to and from control elements, sensors and active
elements.
[0048] The presence of a user may be detected by a sensor. For
example, a sensor for detecting a user may be a switch configured
to be closed by the weight of a user positioned on the toilet seat.
The departure or absence of a user may be detected by the opening
of a weight-sensitive switch, e.g., by relief or absence of the
weight of a user. In further examples, an infra-red sensor, a
temperature sensor, a motion sensor, a capacitative sensor, a
pressure sensor, a strain sensor, or other sensor may by used to
detect the presence or departure of a user. Such sensors may be
mechanical, electrical, optical, electromagnetic, sonic, or other
sensors. A sensor may be or include, for example, one or more of a
weight sensor, a strain sensor, a pressure sensor, a temperature
sensor, a capacitative sensor, a motion sensor, and an ultrasound
sensor. Such sensors may be located in or on one or more of the
toilet seat, the pod, the lid, a hinge, or elsewhere.
[0049] A fan may be activated by the presence of a user sitting on
the toilet seat. In embodiments, a fan may run for a,set period of
time (e.g., one minute) after a user rises off the seat. A fan may
be a low power-consumption, battery-powered fan, may be an
electrically powered fan configured to obtain power from a standard
wall-socket, or may be configured for use with multiple sources of
power (e.g., configured for optional use with battery power or with
wall-socket power). In embodiments, a sensor may be an
electromagnetic sensor or a sonic sensor configured to detect the
presence or the departure of a user.
[0050] An odor-reducing element (a deodorizer), such as a
replaceable odor-absorbing cartridge may be provided. A deodorizer
may include a filter. In embodiments, a deodorizer may be
configured to last about 1-12 months, e.g., about 1-3 months, about
1-6 months, or about 3-6 months, in normal use. An dispenser may be
provided to add a fragrance or aroma to the air that has passed by
or through a deodorizer. A fragrance-providing or aroma-providing
dispenser may be, for example, a replaceable fragrance cartridge or
a replaceable aromatherapy cartridge. In embodiments, such a
cartridge may be configured to last about 1-12 months, e.g., about
1-3 months, about 1-6 months, or about 3-6 months, in normal use. A
fragrance dispenser or aromatherapy dispenser may be disposed
in-line with a deodorizer, such as a deodorizing cartridge,
effective that substantially all the air deodorized by the
deodorizer subsequently passes by or through the fragrance
dispenser or aromatherapy dispenser. In some embodiments, a single
element may provide more than one of the deodorizing,
fragrance-providing, and aroma-providing functions.
[0051] Thus, for example, in some embodiments, a single element
provides fragrance and provides aromatherapy aroma. In further
embodiments, a single element deodorizes and provides fragrance;
and in yet further embodiments, a single element deodorizes and
provides aromatherapy aroma. It will thus be understood that a
fragrance cartridge, an aromatherapy cartridge, both a fragrance
cartridge and an aromatherapy cartridge, or a single cartridge that
adds both a fragrance and an aroma to the air may be provided. It
will also be understood that a deodorizer, an aromatherapy
cartridge, both a deodorizer and an aromatherapy cartridge, or a
single cartridge that deodorizes and adds aroma to the air may be
provided. It will similarly be understood that a deodorizer and a
fragrance cartridge, both a deodorizer and an aromatherapy
cartridge, or a single cartridge that deodorizes and adds a
fragrance to the air may be provided. It will thus also be
understood that a deodorizer, a fragrance cartridge, an
aromatherapy cartridge, or all three, may be provided as a single
cartridge that deodorizes and adds both a fragrance and an aroma to
the air may be provided.
[0052] An indicator or indicators configured to inform a user
whether or not the fan is on, whether or not deodorizing is
activated (e.g., whether or not a deodorizing cartridge is in
place), whether or not aromatherapy is activated (e.g., whether or
not an aromatherapy cartridge is in place), whether or not
batteries may need changing, and to provide other information about
the status or configuration of the devices, assemblies, and systems
disclosed herein. In embodiments, an indicator may be a
light-emitting diode (LED), such as a red LED, a yellow LED, a blue
LED, a green LED, a multi-color LED (e.g., an LED capable of
emitting different colors of light depending upon the control
signals provided to the LED), or other color LED.
[0053] In embodiments of the devices, assemblies, and systems
having features of the invention, a seat may be a heated seat, or a
seat whose temperature may be controlled. Heating elements, such as
electrical heating coils or wires, may be provided in, or on a
surface of, a seat of a device, assembly, or system having features
of the invention. Power for such a heating element or such heating
elements may be provided by a power supply configured for
connection with a power source via a standard electrical wall
socket. The heating elements include, or are operably connected
with, control elements, and optionally with sensing elements (e.g.,
temperature sensors), configured to control and regulate the
operation of the heating elements. A heating element may be
controlled to provide for continuously variable temperatures within
the operating range of temperatures, or may provide for one or more
pre-set heating levels. Controls may include a two-state on/off
switch; a three-state on/off/powersave switch; or other switches.
Temperature controls may provide, for example, three levels of
temperature adjustment, or may provide for other numbers of levels
of temperature adjustment. Controls may include a button for
temperature adjustment, a knob for temperature adjustment, a
sliding switch for temperature adjustment, or other control
interface for temperature adjustment. A display may be provided to
indicate the selected heat level, the temperature, or other
information. For example, illumination of a LED (e.g., a green LED)
may indicate power is being provided to heat the seat.
[0054] Devices, assemblies and systems having features of the
invention are configured for use in the presence of water and
environments where frequent cleaning is often indicated. Electrical
elements, such as a printed circuit board, switches, batteries,
electrical connectors, and other elements, may be covered, coated,
wrapped, or embedded in a waterproof, water-resistant or
water-repellant material. Waterproof or water-resistant materials
suitable for such purposes include epoxy resins, plastics,
including plastic films, cellophane, wax paper, oil cloth, and
other waterproof, water-resistant, or water-repellant
materials.
[0055] Features in the design are effective to minimize potential
water intrusion into the pod or other elements, and to make
cleaning easier. Such features include that the lower "pod" housing
may have a lip along the outer edge (hidden by the upper housing)
to reduce the likelihood of water coming up and over that edge. The
lower "pod" housing may have sloped surfaces at the air inlet and
vent to encourage water to drip out of the pod rather than into it.
The front edge of the pod inlet may be extended downwardly
effective to block potential splash-back from inside the toilet and
to direct dripping liquids back into the bowl. Exposed surfaces may
be configured to be smooth and rounded effective to make wipe-down
easier and to reduce the likelihood of dirt getting stuck in
crevices.
[0056] Devices, assemblies, and systems having features of the
invention may include or be made from antimicrobial materials such
as an antimicrobial resin or plastic. Anti-microbial materials are
effective to reduce the numbers of, or to eliminate, bacteria,
fungi, or other undesirable micro-organisms from the surfaces of
the devices, assemblies, and systems disclosed herein. For example,
anti-bacterial plastics may be used for some or all exposed
surfaces. In embodiments, a toilet seat of an assembly disclosed
herein may be made with anti-microbial materials, may be covered or
coated with anti-microbial materials, or may include antimicrobial
materials with other materials that also make up the seat.
Similarly, a lid, a pod, or any other portion or surface of a
device, assembly or system disclosed herein may include or be
covered or coated (in whole or in part) with antimicrobial
materials. An antimicrobial material may be an anti-microbial
plastic, or an anti-microbial coating, or other material.
[0057] Antimicrobial coatings and surfaces may also include other
means for enhancing the cleanliness of a surface or a portion of
the devices, assemblies and systems disclosed herein. For example,
smooth and rounded surfaces are effective to facilitate cleaning
and inhibit deposition of dirt thereon, and so are effective to
reduce the growth and proliferation of microbes such as bacteria,
fungus, and mold. Non-porous surfaces are resistant to invasion by
microbes, and to the growth and deposition of microbes. These and
other surface attributes also increase the ease of cleaning, aid in
reducing the growth and proliferation of undesirable organisms, and
so have an antimicrobial effect. All these materials and material
attributes add to, and are included in, the materials referred to
as antimicrobial materials and surfaces.
[0058] As illustrated in FIGS. 1A-1E, a system 10 having features
of the invention includes a toilet assembly 12 with a toilet 14
having a toilet bowl 16, the toilet bowl 16 having a lip 18 which
can support a toilet seat 20. A toilet lid 22 is configured to fit
over and cover a toilet seat 20. A toilet 14 may also have a toilet
tank 24. A toilet seat 20 and a toilet lid 22 are able to open and
close while remaining connected to a pod 30 and so to other parts
of the toilet 14 and toilet assembly 12 by means of a seat hinge 26
and a lid hinge 28. A seat hinge 26 and a lid hinge 28 may include
co-axial components, and be configured to co-operate together.
[0059] FIG. 1D is a rear schematic view of a toilet assembly 12
having features of the invention in operable position in place on a
toilet bowl 16 with seat 20 and lid 22 in closed positions,
providing an alternative view of a pod 30 of the assembly 12 having
features of the invention. Tank 24 is not shown in FIG. 1D to
provide a view of the rear of pod 30 when an assembly 12 is in
place on a toilet 14. Vent cover 38 over air outlet 36 may be seen
in position on pod 30 between pod lid 50 and pod top 58 of pod
housing 56.
[0060] FIG. 1E is an upwardly-looking schematic view of a toilet
assembly 12 having features of the invention with seat 20 and lid
22 in closed positions, providing an alternative view showing an
air inlet 32 of a pod 30 having features of the invention. Toilet
bowl 18 is not shown in FIG. 1E to provide a better view of the
lower aspect of seat 20, pod bottom 60, and other features. A
sensor 40 placed on the bottom of seat 20 is positioned so that
pressure on seat 20 (e.g., from a user sitting on the seat 20) will
force seat 20 down pressing sensor 40 onto toilet bowl lip 18
effective that sensor 40 detects the presence of a user on the seat
20, and may send a signal (e.g., via wire 83 shown in FIG. 2) to a
circuit (e.g., on PCB 70 shown in FIG. 2) effective to initiate the
operation of fan 34 and optionally to initiate timer 44.
Alternatively, a fan 34 may be configured to operate only while a
sensor 40 detects the presence of a user on the seat 20.
[0061] Also shown in FIG. 1E are mounting slots 52 for use in
mounting an assembly 12 onto a toilet 14. As shown in FIG. 2,
gaskets 72 are configured to secure an assembly 12 to a toilet 14.
Slots 52 and gaskets 72 are configured to be placed around a bolt
used to secure an assembly 12 to a toilet 14.
[0062] FIG. 2 shows many elements suitable for devices, assemblies
and systems having features of the invention, providing an exploded
schematic view of elements of an assembly 12. In this figure, and
in FIGS. 3A and 3B, some elements are shown vertically disposed
from the positions they take when they are assembled together. A
seat 20 is shown below a lid 22, showing seat hinge 26 and lid
hinge 28. A pod 30 is shown with external and internal components
visible in this exploded view. Pod 30 is made up of a pod housing
56 having a pod top 58, a pod bottom 60, and a pod lid 50. Pod lid
50 is configured to fit into pod top 58 where it may open and
close; when closed, pod lid 50 covers contents of pod 30 such as
batteries 54, deodorizer 46, aromatherapy or fragrance dispenser
48, and may cover or contact vent cover 38. Vanes 39 of vent cover
38 are shown; a vent cover 38, optionally including vanes 39, may
be coated, impregnated with, or constructed with, material
effective to provide an aromatherapy aroma, a fragrance, or both,
to passing air. Fan 34 is also shown; fan 34 is configured to be
housed within pod 30, not necessarily in a position that is
accessible when lid 50 is in an open position. A printed circuit
board (PCB) 70 is shown, and may provide timing (e.g., may serve
as, or include, a timer 44), power regulation, sensing, computing,
and other functions, including control functions related to manual
controls, indicators, and other elements. Dampers 62 (seat damper)
and 64 (lid damper) and their axles (seat damper axle 66 and lid
damper axle 68) connect with seat hinge 26 and lid hinge 28 to
provide a soft close. Gaskets 72 aid in mounting an assembly 12 to
a toilet 14 by providing compression and grip, and helping to seal
against water flow. Other elements known to one of ordinary skill
in the art, such as, for example, mounting bolts, wiring, switches,
and other electronic elements, and other features related to the
pod assembly, may be included in or used with systems 10,
assemblies 12, and devices having features of the invention, and
need not be, and are not, shown in these figures.
[0063] A pod 30 may house components useful for providing airflow
effective to deodorize and optionally to add aromas, scents, or
fragrances to air drawn from a toilet bowl 16 and exhausted into a
space outside the toilet 14. A pod 30 may include an air inlet 32,
a fan 34, and air outlet 36 which may be covered by a cover 38
(shown, e.g., in FIG. 1 D as having vanes 39 effective to direct
airflow in a desired direction). Other elements of a system 10 or
assembly 12 having features of the invention, such as a sensor 40,
a switch 42, an indicator 43, a timer 44, and other elements, may
be disposed within or on a pod 30, or may be disposed wholly or in
part in or on a pod 30. Such elements may be disposed wholly or in
part elsewhere. For example, a sensor 40 may be disposed in or on a
toilet seat 20 effective to detect the presence of a user. As
illustrated in FIG. 1 E, a sensor 40 may be placed on the underside
of a seat 20 effective that pressure from the weight of a user
seated on seat 20 may be detected by sensor 20. Such a sensor 40
may provide a signal indicating that a user is seated on a toilet
seat 20, and may provide a signal indicating that a user is not, or
is no longer, seated on a toilet seat 20. Alternatively, a sensor
40 configured to detect the presence of a user may be disposed in
or on a pod 30 (e.g., an infrared or other light or
electromagnetic-wave-based sensor may detect the presence of a user
on a toilet seat 20 without itself being located in or on the seat
20.
[0064] A sensor 40 configured to detect the presence of a user may
include: a weight-activated switch, button, strain gauge, pneumatic
or hydraulic sensor; a light-activated (or other
electromagnetically-activated) sensor; a temperature sensor; a
motion detection sensor; or other sensor.
[0065] An assembly 12 may include a switch 42, an indicator 43 and
other controls and indicators to allow a user to initiate, modify,
and end the operation of one of more features of an assembly 12,
and to monitor the status or operation of one of more features of
an assembly 12. In embodiments, a switch 42 or an indicator 43 may
be mounted on a pod 30.
[0066] A pod 30 may also house a deodorizer 46. A deodorizer 46 may
include a filter, such as a passive filter, an activated charcoal
filter, a fiber filter, a mesh or web filter, or other filter. A
deodorizer 46 may include components which inactivate odors, and
may add materials, scents, or odors to passing air in order to
inactivate or mask unpleasant odors. A deodorizer 46 is disposed
within housing 50 of a pod 30 effective that air flowing from air
inlet 32 passes over or through deodorizer 46 before exiting via
air outlet 36. An air outlet 36 may have a cover 38 which allows
air to escape. As illustrated in FIGS. 3A and 3B, a cover 38 may
have vanes 39, which may be effective to direct airflow, and to
modulate the flow to improve the efficiency of flow. Such vanes 39,
or other suitable features (not shown, such as mesh, baffles, or
other features) may be present on a cover 38, and in addition to
improving airflow, may aid in reducing noise, reducing the passage
of fluids, and protecting internal components within a pod 30. FIG.
3B also shows mounting slots 52 and gaskets 72 on pod bottom
60.
[0067] A cover 38 may also serve as a fragrance dispenser or
aromatherapy dispenser. A cover 38 may be coated or impregnated
with a fragrance or an aroma, or both, or other suitable material,
effective that air passing through a cover 38 and over vanes 39 or
other features of a cover 38 will provide aroma or fragrance to the
emitted air.
[0068] A fan 34 provides impetus for such airflow. As indicated in
FIG. 3B, a fan 34 may be disposed adjacent the air inlet 32 of a
pod 30, and a deodorizer 46 disposed distal to the air inlet 32
with The fan 34 interposed between air inlet 32 and deodorizer 46.
In embodiments of an assembly 12 having features of the invention,
there is a separation 76 between a fan 34 and a deodorizer 46 so
that the fan 34 and the deodorizer 46 are separated and
substantially not in contact, although spacers, pillars, or other
features on a fan 34 or a deodorizer 46 may be in contact effective
to effect and to maintain such separation 76. A separation 76
provides advantages including improving airflow, improving
deodorizing action of a deodorizer, reducing the likelihood of
impairment of fan operation due to build-up and retention of debris
(e.g., dust or lint) on the fan, improving ease of replacement of a
deodorizer cartridge, and other advantages. For example, a
separation 76 may improve airflow and deodorizing action by
allowing the air moved by the fan to flow to, over, or through a
larger portion of a near-by deodorizer 46, separated from a fan 34
by a separation 76, than would be possible were the deodorizer 46
to be in contact with the fan 34. In embodiments, the width of a
separation 76 may be between about 1 mm and about 5 cm, or between
about 3 mm and about 3 cm, or between about 5 mm and about 2 cm. In
embodiments, a separation 76 may be about 1 cm in width.
[0069] A pod 30 may also house a dispenser 48, which may be, e.g.,
an aromatherapy dispenser 48 or a fragrance dispenser 48. In
embodiments, as shown in FIG. 3D, an aromatherapy dispenser 48 may
be disposed adjacent to a deodorizer 46, opposite to a fan 34, so
that air flowing from a toilet bowl 16 via an air inlet 32 passes
through fan 34, through or over deodorizer 46, and then through or
over dispenser 48 before exiting via air outlet 36 via vent cover
38. Such passage of air past or through a dispenser 48 allows the
treatment of the passing air by the dispenser 48, which may include
the addition of aromatherapy components, fragrance, or both to the
passing air effective to condition the air. In embodiments, as
illustrated in FIG. 3D, two dispensers 48 may be provided, e.g., an
aromatherapy dispenser 48 and a fragrance dispenser 48 effective to
condition the passing air by providing both aromatherapy aromas and
fragrance to air.
[0070] In embodiments, both an aroma and a fragrance may be
provided by a dispenser 48 disposed adjacent to a deodorizer 46,
opposite to a fan 34, and by a vent cover 39 coated or impregnated
with a fragrance effective to add a fragrance so that air flowing
from a toilet bowl 16 via an air inlet 32, through fan 34, through
or over deodorizer 46, is provided with an aroma when passing
through or over dispenser 48 and is provided with a fragrance when
passing through a vent cover 38 as the air exits via air outlet
36.
[0071] A pod 30 may house a power source, such as batteries 54, to
power the operation of a fan 34, a sensor 40, an indicator 43, a
seat heater 94, or other elements which may require or may
optionally use power. Placement of batteries 54 within a pod 30 is
illustrated in FIGS. 3B and 3D. In embodiments, a power source may
be an alternating current (AC) power source. A pod 30 may include
batteries 54 and an AC power source. In further embodiments, a pod
30 may house a recharger effective that a battery 54 may be
recharged by an AC power source.
[0072] Some or all of the features or functionality included within
a pod 30 may be provided by a multifunctional element, such as a
printed circuit board (PCB) 70. A PCB 70 may include, or
participate in providing, one or more of the following functions:
timing function, sensing function, controlling function, power
monitoring, power regulation (including voltage regulation), power
modulation, power rectification (e.g., AC to DC conversion,
optionally including voltage reduction), temperature sensing,
monitoring status (e.g., of batteries, deodorizers, aromatherapy
cartridge lifetime, or other status), or other function.
[0073] Electrical connections between elements in the seat 20, lid
22, and pod 30 may be provided via a hinge 26 or a hinge 28. Thus,
electrical connections between elements are maintained via a hole
78 (on pod 30) and a hole 80 (on seat hinge 26) or hole 81 (on lid
hinge 28). In embodiments, and as illustrated in FIG. 3C for hole
80, a hole 80 or 81 may be an elongated hole having the shape of a
slot. An elongated slot-shaped hole 80 or 81, e.g., one with a
curved aspect as illustrated in FIG. 3C, allows a wire 83 or other
electrical conductor to pass from a pod 30 into a seat 20 or lid
22, and maintain its continuity while a seat 20 or lid 22 is opened
or closed, causing relative motion between a seat 20 or lid 22 and
between a pod 30. In embodiments of the systems 10 and assemblies
12 having features of the invention, a wire 83 or other conductor
is configured for movement and contact with water or corrosive
fluids. For example, a wire 83 or other conductor may include a
conductive core 85 having one or more electrical conductors and an
insulating coating 87. Such an insulating coating 87 is configured
to be flexible yet strong enough to withstand movement and exposure
to wet, corrosive environment.
[0074] A pod 30 may have controls 82 and may have indicators 84
effective to provide user input, and to provide status or other
information to a user. A control 82 may be a switch (e.g., a toggle
switch, a slide switch, a rotary switch, or other switch), a
user-adjustable dial, a knob, or other control. For example, a
switch 42 is such a control 82. A control 82 may be a configured to
control a fan, enable aromatherapy, adjust seat temperature, or
other feature. An indicator 43 is one such indicator 84, and may be
a light-emitting diode (LED), a gauge, a dial, or other indicator.
An indicator 84 may be configured to provide information regarding
a fan 34, a battery 54, a deodorizer 46, an aromatherapy dispenser
48, seat temperature, or other indicator.
[0075] A pod 30 may also provide mechanical support for a seat 20
and a lid 22. A seat 20 and lid 22 may be configured to have a
"soft close", i.e., to close slowly over at least a portion of the
closure movement. A soft close may be provided by including a
damper, such as a spring, a hydraulic mechanism, pulley, cam, or
other damping mechanism as is known in the art. A damper may be
attached to a hinge 26 or 28, or to a portion of a seat 20 or lid
22. As illustrated in FIG. 2 and in FIG. 3C, hinge dampers 62 (for
seat 20) and 64 (for lid 22) may be provided, mounted in and to pad
30. Seat damper axle 66 and lid damper axle 68 extend from housing
50 of pad 30 to engage seat hinge 26 and lid hinge 28, to provide a
soft close for seat 20 and lid 22.
[0076] FIGS. 3A and 3B are schematic views of a pod 30 having
features of the invention, showing lid 50 in a partially open
configuration (FIG. 3A) and removed (FIG. 3B), with batteries 54 in
place within pod 30. A fan 34 is shown within pod 30 is shown in
FIG. 3B, being hidden by lid 50 in FIG. 3A, while deodorizer 46 is
visible in both FIGS. 3A and 3B. Controls 82 and indicators 84 are
also shown in FIGS. 3A, 3B, and 3D.
[0077] Vent cover 38 with vanes 39 is shown covering air outlet 36.
Vent cover 38 may be provided with a fragrance to provide an aroma
or fragrance if desired. A vent cover 38 as illustrated in FIGS.
3A, 3B, and 3D, is removable for replacement, as may be desired to
provide aroma, fragrance, or replace an aroma or fragrance after
extensive use, or for cleaning.
[0078] Lid damper 64 and lid damper axle 68 are shown, as is wiring
hole 78 configured to allow passage of a wire 83 (not shown in
FIGS. 3A-3C) to connect with electrical elements in a seat 20 or
lid 22 (such as a sensor 40, a switch 42, or other element).
[0079] FIG. 3C provides an exploded view of a portion of a seat
hinge 26 showing wiring slot 80 configured to accept a wire 83 or
other conductive element effective to connect electrical elements
in a seat 20 or lid 22 with power, control, or other electrical
elements in or on pod 30. It will be understood that corresponding
wiring holes and slots are provided on the side of pod 30 opposite
to the side that is shown in the figures, which wiring holes and
slots serve corresponding purposes as the ones shown in the
figures.
[0080] FIG. 3D provides a schematic view of a pod 30 having
features of the invention, with lid 50 removed to reveal a fan 34,
a deodorizer 46, and an aromatherapy dispenser 48 in place adjacent
(but not touching) the deodorizer 46 on the side opposite the
deodorizer 46 from the fan 34. Vent cover 38 may be provided with a
fragrance, so as to provide both aroma and fragrance in the
configuration illustrated in FIG. 3D if desired.
[0081] FIGS. 4A and 4B are partially schematic, partially
cross-sectional views of a portion of a pod 30 showing a portion of
pod housing 56 made up of pod top 58 and pod bottom 60. The cross
section shown in FIGS. 4A and 4B is taken along line 4-4 of FIG.
3D. FIG. 4A is a partially superior view, showing features on pod
top 58, and FIG. 4B is a cross-sectional view, showing features of
the pod. Conduit 90 is configured to provide passage of electrical
connections. Dividers 92 provide support and serve to position
elements mounted within pod 30. For example, dividers 92 partially
enclose and secure fan 34 in place when pod housing 56 is
assembled.
[0082] FIG. 4A shows a portion of the interior of air inlet 32,
showing the angled floor 86 of air inlet 32, and the curved roof 88
of air inlet 32. The angles and curves of floor 86 and roof 88 of
air inlet 32 serve to direct the inflow of air while providing for
the outflow of any fluid which may splash or condense within air
inlet 32 or pod 30 in general. A lip 61 of the lower pod housing 60
is shown at the leading edge 63 of air inlet floor 86, and serves
to reduce the likelihood of water coming up and over that edge 63.
The sloped surfaces of the pod bottom 60 (and of air outlet 38 and
vent cover 39) encourage water to drip out of the pod 30 rather
than into it. The front edge 63 of the air inlet 32 is extended
downward to block potential splash-back from inside the toilet bowl
16 and to direct dripping liquids back into the bowl 16. FIGS. 4A
and 4B also show controls 82 and indicators 84.
[0083] FIG. 5 is a schematic, partially cut-away view of a system
and assembly having features of the invention including a heated
seat. A system 10 having features of the invention as illustrated
in FIG. 5 includes a toilet assembly 12 with a toilet 14 having a
toilet bowl 16, the toilet bowl 16 having a lip 18 which can
support a toilet seat 20. The toilet seat 20 is a heated toilet
seat, having heating elements 94 within the seat. A temperature
sensor 96 may also be positioned within seat 20 to provide
temperature and status information to allow control of the seat
temperature. Connections between seat elements, such as heating
elements 94, temperature sensors 96, and other elements, is
provided via electrical connections configured to pass from the
seat 20 and lid 22 via hinges 26 and 28 to pod 30. Power to heat
the heating elements 94 in seat 20 is provided by a power supply
within pod 30 and connected by wires via hinges 26 and 28. The
power supply is operably connected to a power cable 98 which is
configured to operably connect to a standard wall socket to obtain
power.
[0084] Power:
[0085] Fans and other elements requiring power, such as electric
power, may be powered by a battery 54 or batteries 54. For example,
as illustrated in FIGS. 2 and 3B, electric batteries 54 may be used
to provide power to a fan 34, indicator lights 84, and other
electrical elements of an assembly 12 having features of the
invention. It will be understood that variations and different
embodiments may be powered by one, two, three, or other number of
batteries, and that such batteries need not be D-sized, but may be
A, M, C, or other sized batteries, and may include batteries of
different sizes. As illustrated in FIG. 3B, the batteries 54 may be
placed for ready and easy access under a removable battery cover
for installation and replacement.
[0086] A fan 34 may be configured to run at any desired voltage,
such as, e.g., 3V, 5V, or other voltage. In embodiments, a fan 34
engineered to run at lower voltages may be used. In one embodiment,
a 5V fan is used. In such an embodiment, the nominal 3V supplied by
the two D-sized batteries in series may be stepped up to
approximately 5V by a voltage regulator circuit as is known in the
art. A voltage regulator circuit may be implemented on a PCB 70,
may be a separate component housed within pod 30, or may be
provided in other ways known in the art. Such a voltage regulator
circuit is also effective to provide a relatively steady voltage
supply to the fan even as the supply voltage from the batteries
varies from approximately 3.6V when the batteries are fresh to 1.2V
when the batteries are considered "dead". Thus, the fan will be
enabled to perform relatively consistently throughout the life of
the battery. Such consistent power usage is advantageous for
providing more consistent power to the fan, so that the operation
of the fan is more consistent than it would be in the absence of a
voltage regulator circuit, and is advantageous in that a constant
rate of power usage is believed to improve the overall operational
life of the batteries.
[0087] A fan 34 may be powered by batteries 54 without a voltage
regulator. For example, 4 D-sized batteries in series may be used
to run a 5V fan. At the beginning of the batteries' life, the total
voltage is about 7V, providing power that causes the fan to run
faster than it runs at lower voltages. The initial rate of decline
in battery power is thus faster than the later rate of battery
power decline, as the output voltage declines, and the fan turns
more slowly. As the batteries drain and the voltage drops, the fan
slows down, reducing the air-flow performance. In such a
configuration, a 5 V fan is expected to stop spinning at a supplied
voltage of around 3V, at which time the batteries need to be
replaced.
[0088] Alternatively, a direct current (DC) power source, including
a wall-socket plug, wire, alternating current (AC)-to-DC converter
(of any sort known in the art) may be used to provide electrical
power. In embodiments, batteries, AC and DC power sources may each
be provided for use as most convenient or as needed. In such an
embodiment, the battery power may be bypassed when a DC jack
connected to an AC-to-DC converter is plugged in, or DC power is
provided in any other way, so that no current is drawn form the
batteries when power is obtained from a DC power source. In further
embodiments, rechargeable batteries may be provided in an
embodiment configured to recharge the batteries when a DC jack is
plugged in and so provides power.
[0089] As discussed above, embodiments of the devices, assemblies,
and systems having features of the invention include heating
elements in the toilet seat. In such embodiments, AC power from a
wall-socket may be used to provide power to the heating and control
elements to provide for heated toilet seat.
[0090] Deodorization:
[0091] Deodorization is achieved by drawing air from the toilet
bowl and passing the air through, over, or around a deodorizing
element that removes, alters, and/or masks the odor from
odor-causing molecules. Odors that may be found offensive and which
may be removed, altered, or masked include amine odors, including
ammonia, ammonia sulfide, diethylamine, and triethylamine;
mercaptans such as ethyl mercaptan and methyl mercaptan; sulfur
compounds, inclusing methylsulfide, dimethyl sulfide, and hydrogen
sulfide; aldehydes, such as formaldehyde and acetaldehyde; phenols,
such as phenol and cresol; unsaturated compounds such as such as
styrene; and others.
[0092] Important elements for effective toilet bowl deodorization
include:
[0093] providing enough airflow and
[0094] providing a physical arrangement that directs the majority
of the air in the toilet bowl through a deodorizing element, and
minimizes the amount of air escaping directly out of the bowl
without contacting, passing over, or going through the deodorizing
element.
[0095] An effective deodorizing element is one that can remove,
alter, or mask the majority of odor causing molecules in the air
that passed by or through it. In embodiments, a master power switch
on the pod is provided to enable or to disable the deodorizing
function.
[0096] Deodorizing elements may include a filter, a catalyst, an
energy source, a neutralizing compound, or other element effective
to deodorize air passing by or through the deodorizing element. In
the following, where the term "filter" is used, it will be
understood that a filter may include a catalyst, a neutralizing
compound, or other element effective to deodorize air, and may
include an energy source.
[0097] Filters are configured to allow air to pass, and to
condition air as it passes through or by the filter. Filters may be
configured to trap particles and odor-causing chemicals, and may
include natural materials, gauze, mesh, glass, plastic or composite
wool material, porous materials, or other materials and elements
effective to remove particles and odors from the air.
[0098] In an embodiment of the devices, assemblies, and systems
disclosed herein, the pod includes a portion that overhangs the
toilet bowl and has an inlet opening that faces downwards into the
bowl. Such a portion is illustrated in FIGS. 3 and 4 as discussed
above. A vent is provided on the pod at a position opposite to the
inlet opening. A 50 mm.times.50 mm.times.10 mm box-fan disposed
inside the pod in fluid contact with the inlet opening is used to
generate air flow. It will be understood that other sizes and
designs of fans are suitable as well. Air enters through the inlet,
goes through the fan, then through the filter, and finally out a
vent at the rear of the pod. The filter is a deodorizing filter
effective to reduce the amount of odor-causing material in the air
flowing out of the vent as compared to the amount of odor-causing
material in the air flowing into the inlet.
[0099] In embodiments, the filter is located approximately 1/2 inch
away from the fan (rather than right up against the fan) to allow
less restricted air-flow. Thus, in embodiments, the filter is
disposed at a position near, but not in contact with, the fan to
provide improved performance by providing less restricted air-flow
than would occur were the filter placed directly in contact with
the fan. In embodiments, more than one filter may be used,
including filters of more than one type or of more than one means
of deodorization.
[0100] A deodorizing filter may include activated charcoal, as a
powder, as granules, or in other forms. Activated charcoal may be
present in or on a mesh, as granules packed loosely together so as
to allow airflow between and around granules, as coatings on a
mesh, grating, network, or other surface configured to allow
contact between the activated charcoal and passing air, or may be
present in other configurations. In some embodiments, activated
carbon filters include extrusion-molded activated carbon elements,
typically utilizing activated charcoal powder. In some embodiments,
activated carbon filters include compression-molded activated
carbon elements, typically utilizing activated charcoal granules.
Such activated carbon elements typically also include binders.
Activated carbon filters, and other filters, are typically
configured to have many holes or passages through which air may
flow. Such air flow is typically impelled by a fan.
[0101] A filter may include a catalyst, energy source, neutralizing
element, or other deodorizing element. Catalysts include low
temperature catalysts that deodorize air by absorption and by
catalyzing decomposition of odor-causing compounds (e.g., by
oxidation of such compounds). Catalysts may include metals and
metal oxides, such as manganese compounds (e.g., manganese oxides
and manganese acids), titanium compounds (such as titanium oxides),
or other compounds or elements suitable for deodorizing. Energy
sources useful for deodorizing include corona discharge elements
and plasma discharge elements effective to deodorize and/or
sterilize air. Ultraviolet light is also useful for reducing odors,
by effecting the decomposition of odor substances and by killing or
injuring microbes. -Ultraviolet light may be used in conjunction
with a catalyst (e.g., a titanium dioxide catalyst) to catalyze the
decomposition of odor-causing compounds. Neutralizing compounds,
such as bicarbonate of soda, may absorb or neutralize odors in air.
Filters are effective to deodorize air by trapping and removing
odor-causing compounds from passing air.
[0102] It will be understood that a filter is a consumable
component that has a finite usable life, and requires replacement
on occasion. The pod is configured to allow a user to easily
replace the filter when needed. In embodiments, as illustrated in
the figures, a filter is accessible under the same cover that is
used for accessing the batteries.
[0103] In embodiments, a switch or sensor is provided that senses
when the filter is properly in place or not. For example, proper
placement of the filter may depress a detent that closes a circuit
configured to provide an indication of proper placement (e.g., when
properly placed, a circuit is closed to allow current flow to
illuminate an indicator light, or, proper placement opens a circuit
to shut off an indicator light that indicates improper placement of
the filter). Such a sensor may be configured to allow the
micro-controller to track how long a filter has been in place and
indicate to the user (via an LED or other means) when the filter
should be replaced. In embodiments, the fan is deactivated when the
filter is not in place. This may provide an advantage in that
running the fan without a filter is expected to exacerbate odor
issues associated with toilet use.
[0104] A fan suitable for use in the systems, assemblies and
devices having features of the invention is capable of providing
airflow effective to withdraw air from a toilet bowl and to pass
air to and through a filter. For example, a suitable fan may
provide airflow of between about 0.05 cubic meters per minute
(m.sup.3/min) and about 0.5 m.sup.3/min, or between about 0.1
m.sup.3/min and about 0.3 m.sup.3/min, or between about 0.15
m.sup.3/min and about 0.2 m.sup.3/min. For example, a suitable fan
may provide airflow of about 0.15 m.sup.3/min, or about 0.18
m.sup.3/min, or about 0.19 m.sup.3/min. A fan may be configured to
produce a minimum of noise while providing sufficient airflow.
Airflow of less than about 0.3 m.sup.3/min, or airflow of less than
about 0.2 m.sup.3/min, provides sufficient airflow while producing
acceptable amounts of noise. Such fans may be powered by 12 V or by
5 V direct current (DC) power, which may be provided by batteries,
by alternating current (AC) power supplies which provide DC power,
or any suitable means.
[0105] Vanes, Vent Louvers and Optional Fragrance Delivery:
[0106] A vent cover, such as vent cover 38 having downwardly
pitched vanes 39 illustrated in FIGS. 2, 3A, 3B and 3D, is an
example of a removable set of louvers configured to fit into the
air outlet 36 at the rear of the pod 30. Such louvers are
configured to help shed dripping water or other liquids and debris
towards the outside of the pod. The louvers may be molded as a
single piece that can slide vertically in and out of slots on
either side of the vent, or may be made of separate pieces
configured to fit together to form a louver effective to direct
airflow and help shed water and other liquids and debris. In the
embodiment illustrated in FIGS. 2, 3A, 3B and 3D, pod lid 50 which
serves as a battery/filter cover must be opened or removed to do
so. It will be understood that alternative embodiments may be
configured so that a louver, such as a vent cover 38 or other
element serving a similar purpose, may be configured for removal or
replacement without requiring the removal or displacement of a pod
lid 50.
[0107] Optionally, such a louver part may be molded with various
impregnated fragrances or aromas, or have scented coatings which
provide fragrances or aromas. Such fragrances or aromas passively
dissipate into the air at all times. These fragrances or aromas are
dissipated at increased rates and amounts when the fan blows air
past or through a louver part, so that the effects of these
fragrances or aromas are increased when the fan is on. Such
impregnated or coated louvers provide the advantage that a variety
of fragrances and aromas may be easily swapped out by the user at
will, and may be easily replaced for fresh louvers as needed. The
useful life of such impregnated or coated louvers is limited
however, as only a finite amount of fragrance or aroma may be
impregnated in or coated on such a louver part. Thus, such louvers
may be replaced, e.g., at regular intervals, or as desired by a
user, as the amount of fragrance or aroma declines over time.
[0108] The fragrance or aroma component for use with a replaceable
louver or with a replaceable cartridge may consist of a coating, an
impregnated material, a cartridge, a louver, or a stick, block, or
sheet that would passively give off molecules of a desired odor or
scent (by evaporation or sublimation). Placement in the airflow
would increase the release or emission of the fragrance or aroma
while the fan was on. It is advantageous to place the fragrance or
aroma component after the filter in the air flow in order to
minimize the amount of the fragrance or aroma that is absorbed or
altered by the filter.
[0109] Any pleasant fragrance is suitable for use in the systems,
assemblies and devices disclosed herein. For example, fragrances
derived from or resembling natural smells, such as flower
fragrances, fruit fragrances, perfumes, and other fragrances
pleasant to smell, or which may evoke pleasant associations or
sensations in a person sensing them, are all suitable. Particular
examples include, but are not limited to, lemon, acacia, pine,
peach, hazelnut, and other fragrances. A fragrance may also have
effects other than its mere ability to be sensed by a person's
sense of smell, and so may also serve as an aromatherapy aroma.
[0110] Aromatherapy aromas suitable for use in the systems,
assemblies and devices disclosed herein may further include aloe
vera, ambergris, castor, chamomile, cinnamon, cypress, eucalyptus,
fennel, geranium, honey, jasmine, lavender, orange, peppermint,
sage, rose, rosemary, vanilla, and other aromas. An aroma suitable
for aromatherapy may, but need not, provide a detectable fragrance.
However, an aroma suitable for aromatherapy may also have a
fragrance that may be sensed by a person, and is therefore also
suitable for use as a fragrance. Aromas providing pleasant
fragrances and also believed to provide physiological, emotional,
or temperamental effects include chamomile, eucalyptus, jasmine,
peppermint, rosemary, and other aromas.
[0111] A component providing fragrance or aroma may be arranged to
be accessible without removing the pod lid 50 for easier swapping.
For example, a stick, block, or sheet may be placed in a slot,
channel, or other receptacle in the pod 30, pod lid 50, or vent
cover 38. For instance, there may be a hole in a pod lid 50 that a
scent stick drops through with a small "finger grab" remaining
above the hole so the user can easily remove it again. This way a
user may select from a variety of available fragrances or aromas at
whim.
[0112] In further embodiments, a "valve" may be placed between the
deodorizer 46 and dispenser 48 (or other fragrance or aroma
component as described above) to reduce the amount of fragrance or
aroma that is passively absorbed or altered by the filter when the
fan is not in use, thus extending the usable life and effectiveness
of the deodorizer 46 and dispenser 48 (and other fragrance or aroma
components where present). For instance, a flap may be provided
that at least partially covers the outwardly exposed surface of the
deodorizer 46 adjacent the dispenser 48, reducing the amount of
passively scented air that enters the deodorizer 46 (from the
direction opposite to the flow induced by action of the fan) when
the fan is not in use. The flap is blown out of the way when the
fan is on, allowing proper air flow and providing dispersion of
fragrances or aromas into the air outside a toilet.
[0113] In embodiments, a valve (which may be a flap, or may be any
other valve or flow-controlling device) may be mechanically
controlled by, for example, a solenoid, a magnet, a mechanical
coupling, a lever, a gear, a rack and pinion, or other mechanical,
electromechanical, magnetic, hydraulic, piezoelectric, or other
control mechanism.
[0114] In further embodiments, aroma or fragrances may be delivered
or emitted via an active mechanism that uses pressure, heat, or
other dispersion methods to release the scent at specified times.
These aromas or fragrances may be released at preset or programmed
times chosen by the user or as initially set at the time of
manufacture, including preset or programmed times that are at
regular intervals, or at that are at certain time points during the
deodorization operational modes.
[0115] Deodorization Activation:
[0116] Devices, assemblies and systems disclosed herein are
configured to sense when a user sits on the toilet seat, effective
to activate the deodorizing process. In one embodiment, as
disclosed herein, a mechanical switch may be built into the
underside of the toilet seat, and that touches the top surface of
the toilet bowl when the seat is in the down position. The wiring
to the switch passes through the seat hinge and into the pod. In
the nominal position, the switch is open. A downward force (e.g.,
provided by the weight of a person sitting on the on the seat)
provides a force between the switch and top of the bowl effective
to close the switch and so to signal a micro-controller to start
the fan.
[0117] In alternative embodiments, a capacitative sensor or
body-conduction sensor in the seat, pod, or lid may be provided
that senses the proximity of a user. In further alternative
embodiments, a sensor may be an infrared or other electromagnetic
radiation sensor, which may include a source of infrared or other
radiation, and be configured to detect reflection of such radiation
from a user seated on a toilet seat, or to sense blockade of
radiation by the presence of a user across a path otherwise taken
by such radiation. Where the sensor is in the seat, or otherwise
calibrated to distinguish the location of the person, such a sensor
provides the benefit of distinguishing between a person sitting
directly on the seat vs. a person sitting on a closed lid or some
other object resting on the seat.
[0118] In a further alternative embodiment, an electronic,
pneumatic or hydraulic sensor in the seat may be provided that
senses the presence of a user seated upon the seat by movement of
fluid or gas within the sensor caused by pressure on the seat (and
thus pressure on, or flexion of, at least a portion of the sensor).
Such an electronic sensor may be, e.g., a strain gauge, or a
piezoelectric device. Such a pneumatic or hydraulic sensor may
include a chamber filled with a flowable fluid or gas which moves
in response to pressure or flexion of at least a portion of the
sensor effective to sense the presence of a user.
[0119] In a further alternative with a mechanical switch as
described above, activation may be disabled with a switch or sensor
that senses when the lid is closed. Where the lid is configured to
rest directly on the edge of the toilet bowl, application of
downward force on the sensor may be prevented and so prevent a
downward force on the lid from mechanically translating to the seat
and seat switch. In order to reduce the likelihood of accidental or
momentary activation, a delay (e.g., a 1 or 2 second delay) may be
programmed into the micro-controller to provide a delay between the
seat switch closing and the fan starting.
[0120] Deodorization Modes:
[0121] Once deodorization is activated by the seat switch or
sensor, various outcomes may be provided depending on how long the
switch remains closed (indicating presence of a user) or the sensor
remains activated (indicating presence of a user):
[0122] If the switch opens, or the sensor is de-activated, after a
very short duration (e.g., 2 seconds) the fan will not come on at
all.
[0123] If the switch opens, or the sensor is de-activated, after a
very short period (e.g., 2 seconds) and before a short period
(e.g., 20 seconds) the fan will continue for very short period
(e.g., 5 seconds) before stopping. If the switch is closed again,
or the sensor is re-activated, before the fan stops, the fan will
continue as if the switch was not opened or the switch not
re-activated. (And thus the timing is still measured from the
initial time.)
[0124] If the switch opens, or the sensor is de-activated, after a
short period (e.g., 20 seconds), the fan will continue for an
"overrun" period (e.g., 60 seconds) before stopping. If the switch
is closed again, or the sensor is re-activated, before this overrun
period is complete, the fan will continue as if the switch was not
opened (or sensor de-activated) and the "overrun" period will be
reset for the next time the switch is opened (or sensor
de-activated).
[0125] If the switch is closed, or sensor is activated, for more
than a long duration (e.g., 10 minutes) the fan will automatically
stop. The system will be reset as soon as the switch is opened
again, or sensor is de-activated again. (This is intended to
prevent undue battery drain in the event the user places something
on the seat or lid that may accidentally activate the fan.) In
embodiments, an LED on the top of the "pod" will be lit to indicate
that deodorization is active whenever the fan is on.
[0126] Low Battery Indicator:
[0127] When the battery supply voltage drops to a certain level
(TBD) an LED will blink to prompt the user to replace the
batteries. In the current implementation, the same LED used to
indicate the deodorization is active will begin to blink (e.g., 0.5
sec on, 0.5 sec off). It will only be on and blinking when the fan
is running. Alternatively, the LED may continue to blink even when
the fan is off to make sure the user sees it. However, in addition
to the advantage of increasing the likelihood that a user will see
the indicator, this embodiment has the disadvantage that it will
continue to drain the battery further.
[0128] The LED may be a multi-color LED so that it can be one color
for normal deodorization mode, and another color (blinking or not)
for low-battery indication. Alternatively, a second LED may be
used, any color, blinking or not blinking.
[0129] A comparison of features and components used in two of the
embodiments of the devices, assemblies and systems disclosed herein
is provided in the TABLE, which lists some features present in
embodiments which do not include a heated toilet seat ("Fan Only"),
features present in embodiments which do include a heated toilet
seat ("Fan and Heating"), and features present in both embodiments
("Both Embodiments").
[0130] Devices and systems embodying features of the invention may
also include other useful features in addition to those discussed
above. It will be apparent from the foregoing that, while
particular forms of the invention have been illustrated and
described, various modifications can be made without departing from
the spirit and scope of the invention. Moreover, those skilled in
the art will recognize that features shown in one embodiment of the
invention may be utilized in other embodiments of the invention. To
the extent not otherwise, described herein, the materials and
methods of construction and the dimensions of conventional toilets
and bidets may be employed with systems and devices embodying
features of the present invention. Accordingly, it is not intended
that the invention be limited, except as by the appended claims.
Reference to the terms "elements," "portions," source," and terms
of similar import in the claims which follow shall not be
interpreted to invoke the provisions of 35 U.S.C. .sctn.112,
paragraph 6 unless reference is expressly made to the term "means"
followed by an intended function.
TABLE-US-00001 TABLE Fan Only Both Embodiments Fan and Heating
General Fit one-piece toilets 5.5'' hole pitch Tight, solid,
non-loosening mounts Slight (~1/2'') adjustability front to back
Easy to clean design Common pod for round and elongated versions
Seat Solid construction and feel (ultrasonic weld preferred)
Ergonomic seat Soft closing Hollow cavity seat Heating element
Antimicrobial seat resin Wiring for any sensors or heating
internally through hinge Lid Soft closing Strong lid that a person
can sit on (6 + mm wall) Deodorizer and Fan Small fan blowing air
through deodorizing filter cartridge Low power More powerful fan
(e.g., consumption fan, 8 12 cfm) about 6 10 cubic feet per minute
(cfm) Replaceable odor absorbing cartridge lasting about 6 12
months Air inlet from inside toilet bowl with clean-air exhaust
outside of bowl Easy access to replace deodorizing cartridge
Optional Fragrance or Adds fragrance or aroma as air blows
Aromatherapy cartridge across it In-line with fan and deodorizer
cartridge Easy access to replace cartridge Optional fragrance or
aroma cartridge Optional Impregnated Louver Heater No heater
Adjustable temperature, 3 levels and off settings n/a Button to
adjust temperature n/a Indicator for heat level Power Supply
Battery powered (e.g., A/C power with 4 foot 2 D-sized batteries)
cord Battery life of 60+ hours n/a (10+ hours if rechargeable) Easy
access to replace n/a batteries Low battery indicator n/a Person
Sensor Senses when a person is on seat (body-conduction chip,
infrared, mechanical switch, etc.) Fan starts and runs while person
is seated and runs for one minute after person is gone Zero or very
low power consumption USER INTERFACE Power Buttons/Display On/Off
Button On/Off Button Low Battery LED Power LED-blue (flashes when
fan is on) Deodorizer Buttons/ Deodorizing LED-blue (fan is on)
Display Heat Level Adjustment/ Display N/A Temp. Level Button
(repeatedly push) Temp. Level Display (3 LED or 3 color LED)
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