U.S. patent application number 10/076815 was filed with the patent office on 2003-08-21 for automatic toilet seat lid raising and lowering device.
Invention is credited to Miller, Daniel J..
Application Number | 20030154541 10/076815 |
Document ID | / |
Family ID | 27732547 |
Filed Date | 2003-08-21 |
United States Patent
Application |
20030154541 |
Kind Code |
A1 |
Miller, Daniel J. |
August 21, 2003 |
Automatic toilet seat lid raising and lowering device
Abstract
A toilet seat lid raising and lowering device relies on a motion
sensor to trigger its operation. A housing containing the sensor, a
motor and a spool is removably attached to a toilet tank. Upon
detecting a user approaching the toilet area, the sensor sends an
activation signal to the motor causing the motor to rotate the
spool. A line is attached to the spool at one end and to the seat
lid at a second end such that the rotation of the spool causes the
line to raise the seat lid to an open position slightly angled from
the tank. Once a user exits the toilet area, the motor returns to a
neutral position allowing the spool to rotate in an opposite
direction thereby lowering the seat lid by means of gravity.
Resistance between the motor and spool prevent the seat lid from
"crashing" to a closed position.
Inventors: |
Miller, Daniel J.; (Las
Vegas, NV) |
Correspondence
Address: |
QUIRK & TRATOS
3773 HOWARD HUGHES PARKWAY
SUITE 500 NORTH
LAS VEGAS
NV
89109
US
|
Family ID: |
27732547 |
Appl. No.: |
10/076815 |
Filed: |
February 15, 2002 |
Current U.S.
Class: |
4/246.1 |
Current CPC
Class: |
A47K 13/10 20130101 |
Class at
Publication: |
4/246.1 |
International
Class: |
A47K 013/10 |
Claims
I claim:
1. An automatic toilet seat lid lifting device removably attached
to a toilet comprising: a housing containing a motor coupled to a
spool, said spool rotated by said motor; a power means for driving
said motor; and a line having a first end attached to said spool,
said line extending from said spool through a first opening in said
housing to a second end attached to a toilet seat lid whereby the
rotation of said spool collects said line thereby raising said
toilet seat lid.
2. The automatic toilet seat lid lifting device of claim 1 wherein
said device is removably attached to a toilet tank.
3. The automatic toilet seat lid lifting device of claim 1 further
including means for said motor to cease rotating said spool once
said toilet seat lid forms a minimum angle with a front face of a
toilet tank, said motor maintaining the spool in place once the
minimum angle is formed, said minimum angle being large enough to
allow said toilet seat lid to lower to an original closed position
by means of gravity should said spool be released by said
motor.
4. The automatic toilet seat lid lifting device of claim 3 wherein
said means for said motor to cease rotating said spool is an
adjustable clip secured to said line preventing further line from
being drawn into said first opening of said housing.
5. The automatic toilet seat lid lifting device of claim 1 further
including a motion sensor communicating with a microprocessor that
controls said motor.
6. The automatic toilet seat lid lifting device of claim 4 wherein
said motion sensor sends a signal to said microprocessor upon
detecting a toilet user approaching said toilet, said
microprocessor instructing said motor to rotate said spool thereby
lifting said toilet seat lid.
7. The automatic toilet seat lid lifting device of claim 4 wherein
said motion sensor sends a signal to said microprocessor upon
detecting a toilet user has moved away from said toilet, said
microprocessor instructing said motor to release said spool thereby
allowing said toilet seat lid to lower to an original closed
position.
8. The automatic toilet seat lid lifting device of claim 7 wherein
the coupling of the motor and the spool incorporates a sufficient
amount of resistance to cause the toilet seat lid to lower
gradually to the original closed position.
9. The automatic toilet seat lid lifting device of claim 1 wherein
the power means is batteries.
10. The automatic toilet seat lid lifting device of claim 9 wherein
a light emitting diode in communication with said batteries
illuminates indicating that said batteries are low on power.
11. A method of lifting a toilet seat lid comprising: providing
power to a motor; rotating a spool by means of said motor coupled
thereto, said spool and motor contained within a housing removably
attached to a toilet tank; and said spool collecting a line
attached at a first end to said spool and at a second end to said
toilet seat lid.
12. The method of claim 11 wherein said power is provided by
batteries.
13. The method of claim 11 wherein said motor ceases rotating said
spool once said toilet seat lid forms a minimum angle with a front
face of a toilet tank, said motor maintaining the spool in place
once the minimum angle is formed, said minimum angle being large
enough to allow said toilet seat lid to lower to an original closed
position by means of gravity should said spool be released by said
motor.
14. The method of claim 11 further including a means for detecting
motion near a toilet.
15. The method of claim 14 wherein said means for detecting motion
near a toilet is a motion sensor.
16. The method of claim 15 wherein said means for detecting motion
sends a signal to a microprocessor in communication with said motor
upon detecting a toilet user approaching said toilet, said
microprocessor instructing said motor to rotate said spool thereby
lifting said toilet seat lid.
17. The method of claim 15 wherein said means for detecting motion
sends a signal to a microprocessor in communication with said motor
upon detecting a toilet user has moved away from said toilet, said
microprocessor instructing said motor to release said spool thereby
allowing said toilet seat lid to lower to an original closed
position by means of gravity.
18. The method of claim 17 wherein the coupling of the motor and
the spool incorporates a sufficient amount of resistance to cause
the toilet seat lid to lower gradually to the original closed
position.
19. The method of claim 12 wherein an light emitting diode in
communication with said batteries illuminates indicating that said
batteries are low on power.
Description
FIELD OF INVENTION
[0001] This invention is in the general field of conventional
toilets. More particularly, means for raising and lowering a toilet
seat lid automatically and without user participation is described
herein. The present invention raises and lowers a toilet seat lid
automatically in response to a user's location and movements by
means of a motion sensor.
DESCRIPTION OF THE PRIOR ART
[0002] Patents related to automatic toilet seats are plentiful and
well known. Unfortunately, while plentiful, the patented items are
either not marketable or so complicated that they are not practical
in the real world. By way of example, U.S. Pat. Nos. 1,276,472,
2,136,684, 3,055,016, 4,807,307, 5,488,743, 5,594,958, 5,829,068
and 5,852,833 are each directed to devices for lifting a toilet
seat and/or lid by means of foot pedals. In all instances, a
userdepresses one or more foot pedals causing said toilet seat
and/or lid to be raised. Each of the aforementioned patented
inventions require a toilet user to participate by depressing the
foot pedals. Moreover, assembly of the foot pedal devices is
difficult and the ultimate product is unsightly.
[0003] More noteworthy than the foot pedal designs is U.S. Pat. No.
6,038,708 (the '708 Patent) entitled "Automatic Toilet Seat With
Protective Covering." The '708 Patent describes a geared mechanism
for lifting a toilet seat. The '708 further describes three sensors
for operating the invention but only a flush sensor is specifically
used to sense the presence of an individual and react thereto. In
practice, the mechanism is located within a toilet tank and
requires significant installation in connection with an existing
toilet or complete integration during a toilet manufacturing
process.
[0004] Based on the shortcomings of the aforementioned toilet seat
and toilet lid lifting patents, there continues to be a need for a
simple toilet seat lid raising and lowering device requiring no
user participation and having an unobtrusive appearance.
Handicapped individuals and children will especially benefit from
the automatic nature of the present invention. The present
invention may be installed in minutes and is small enough to remain
substantially hidden from view. Further, the present invention
operates in a completely automatic fashion such that a user has no
responsibility beyond installation.
SUMMARY OF THE INVENTION
[0005] An object of the present invention is to provide a device
for automatically raising and lowering a toilet seat lid that is
simple to install.
[0006] Another object of the present invention is to provide a
unobtrusive device for automatically raising and lowering a toilet
seat lid.
[0007] A further object of the present invention is to provide a
cost effective device for automatically raising and lowering a
toilet seat lid.
[0008] Yet another object of the present invention is to provide
the handicapped and children with an automatic service which is
ordinarily complicated given the specific individual.
[0009] According to the present invention, a line or the like is
attached at one end to a spool and the other end to a horizontal
toilet seat lid. A motor driving the spool causes said line to
withdraw thereby raising said seat lid. A motion sensor in a
housing of said motor initiates the automatic raising of the toilet
seat lid.
[0010] To remain unobtrusive, the housing is removably attached to
an end of a toilet tank. In this location, the sensor is also able
to discern the presence of user movement and initiate the raising
and lowering processes automatically. Upon sensing user movement,
said motion sensor sends a signal to said motor, thus activating
said motor, causing the spool to rotate drawing the line within the
housing thereby physically raising the toilet seat lid.
[0011] The motion sensor resides within said housing and faces a
front area of the toilet through an opening in said housing. The
motion sensor can use any type of medium to detect motion,
including microwave energy, ultrasonic waves, infrared energy or
radio frequency signals to accomplish its sensing objectives.
However, it is desirable that the sensor be set at an optimum
distance to prevent unwanted raising of the toilet seat lid. In
most instances, the sensor will be set to detect movement from less
than 10 feet depending on the size of a bathroom facility.
[0012] Preferably, the motor and sensor are powered by conventional
or rechargeable batteries. Alternatively, a power cord may be used
to connect the present invention to an electrical outlet located in
the bathroom facility. Installation of the present invention is
limited to attaching the housing to the toilet tank and attaching
one end of the line to the toilet seat lid.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a top view of the present invention installed on a
toilet;
[0014] FIG. 2 is a perspective view of the present invention
installed on a toilet;
[0015] FIG. 3 is a perspective view of the present invention
removed from a toilet;
[0016] FIG. 4 is a block diagram of internal components of the
present invention; and
[0017] FIG. 5 is a side view of the present invention with a seat
lid in a final open position.
DESCRIPTION OF THE EMBODIMENTS
[0018] Reference is now made to the figures wherein like parts are
referred to by like numerals throughout. Referring to FIGS. 1 and
2, a toilet 1 includes a tank 10, tank lid 15, seat 20, seat lid 25
and a bowl 30. The toilet tank 10 supports a housing 35 having line
40 extending therefrom through first opening 42 to attach with the
toilet seat lid 25. Although the line 40 can be any rope, cable,
string, chain or the like, it is preferably a pliable material
conducive to being wrapped, without tangling, about a spool. The
attachment of the line 40 to the toilet seat lid 25 is facilitated
by means of an attachment member 45 connected to a first end of
said line 40. In a preferred embodiment, the attachment member 45
includes a Velcro.RTM. portion that removably attaches to a
corresponding Velcro.RTM. member 50 located on the seat lid 25.
Preferably attachment member 50 is held in place on the seat lid 25
by an adhesive. The final location of the Velcro.RTM. member 50 is
ultimately determined by a toilet user and/or operator to maximize
the effectiveness of the present invention. Individual seat lid
models may have different sizes and weight configurations
requiring, for proper operation, different locations for the seat
lid attachment member 50. For example, the attachment member 50 may
be placed anywhere along a top surface or bottom surface of the
toilet seat lid 25. Alternatively, the line 40 may be permanently
attached to the seat lid 25 at a pre-selected optimum position.
[0019] Housing 35 includes a second opening 43 providing a line of
sight for a motion sensor 55. The motion sensor 55 faces a front
area of the toilet such that user movement is detected by said
sensor 55. Although the sensor 55 may rely on any means, including
microwave energy, ultrasonic waves or radio frequency signals, to
detect a user approaching said toilet 1, infrared means are
preferred. Infrared technology allows the size of the motion sensor
55 to be minimized. Moreover, infrared means are accurate and may
be narrowly focused to avoid detecting extraneous movements.
Preferably, the sensor 55 is adjustable so that a user and/or
operator may adjust the aim of the sensor 55 to insure a proper
coverage area. In other words, with too large a coverage area the
present invention will be unnecessarily activated and with too
small a coverage area the present invention will not activate when
required. In an alternative embodiment, given the standard nature
of toilets and bathroom facilities, the sensor 55 may be
preadjusted during a manufacturing process.
[0020] Now referring to FIG. 3, to facilitate the removable
attachment of the housing 35 to the toilet tank 10, two hooks 60
extend from a top surface of said housing 35. Attachment of the
housing is accomplished by removing the toilet tank lid 15 and
placing the hooks 60 over a top perimeter of the tank 10 such that
the housing 35 hangs adjacent an outside surface of said tank 10.
Preferably, the housing 35 is located near a front of the toilet 1
thereby assuring the coverage area of the sensor 55 includes areas
directly in front of the toilet 1 and on an opposite side of the
toilet 1 from the attached housing 35.
[0021] FIG. 4 illustrates, in a block diagram, the internal
components of the housing 35. The housing 35 contains the sensor
55, a motor 65, a spool 70 and a power means 75. The sensor 55
communicates with said motor 65 that is coupled to, and drives,
said spool 70. Therefore, when sensor 55 detects a user approaching
said toilet 1, it sends an activation signal to motor 65, more
particularly a microprocessor 66 in communication with the motor
65, causing said motor 65 to rotate said spool 70 thereby
retrieving the line 40 compelling said seat lid 25 to raise. The
microprocessor 66 does not need to be highly sophisticated as it
functions primarily as a conduit between the spool 70 and the motor
65. The power means 75 powers the sensor 55, microprocessor 66 and
the motor 65. A clip 80 removably attached to said line 40 provides
the impetus for the motor 65 to stop rotating the spool 70 but
continuing to hold the spool 70 and seat lid 25 in place. The clip
80 restricts the line 40 from entering the opening 42 once the seat
lid 25 is in the final open position. Although the clip 80 is
described, any attachment on the line 40 may be used to perform the
same function. The clip 80 is to be positioned along line 40 to
stop the motor 65 while the seat lid 25 still defines a small angle
(shown as angle A in FIG. 5) with a front face of said tank 10. As
illustrated in FIG. 5, the angle must be large enough that, when
unencumbered, gravity will return the seat lid 25 to a closed
position. Upon detecting the user leaving the toilet 1 area, the
sensor 55 sends a signal to the microprocessor 66 in communication
with the motor 65 causing said motor 65 to return a neutral
position thus releasing the spool 70 causing gravity to lower said
seat lid 25 to the closed position. The connection of the motor 65
and spool 70 involves sufficient resistance to prevent the toilet
seat lid 25 from free-falling to the closed position but not enough
to prevent the seat lid 25 from returning to the closed
position.
[0022] If the present invention is prefabricated according to a
specific toilet and toilet seat lid, the microprocessor 66 may be
programed to cease the motor 65 at precisely the correct time so
that the toilet seat lid 25 forms the proper angle with the toilet
tank 10. In this manner, the use of clip 80 can be eliminated.
[0023] Preferably, power means 75 comprise off-the-shelf Alkaline
batteries. Rechargeable batteries may also be used. In either
embodiment, a light emitting diode (LED) in communication with said
batteries illuminates to indicate that said batteries are low on
power and need to be changed or recharged. Light from the LED
shines through a third opening 85 in said housing 35.
Alternatively, a power cord (not shown) plugged into a standard
electrical outlet in a bathroom facility powers the present
invention.
[0024] An on-off switch 90 allows the present invention to be
turned off to facilitate adjusting the location of attachment
member 50, adjusting the location of said clip 80 along said line
40 and adjusting said sensor 55. When turned off, the resistance
between the motor 65 and spool 70 is eliminated allowing the line
40 to be pulled to any length from within the housing 35.
Thereafter, a combination of common sense and trial and error
dictate the final location of the attachment member 50 and the clip
80 to guarantee the seat lid 25 raises and lowers properly. Once
the attachment member 50 and clip 80 are optimally located, the
user need only change the batteries intermittently as required. A
removable top of said housing 35 provides means for the sensor 55
to be adjusted if necessary.
[0025] Although the invention has been described in detail with
reference to a preferred embodiment, additional variations and
modifications exist within the scope and spirit of the invention as
described and defined in the following claims.
* * * * *