U.S. patent application number 11/045701 was filed with the patent office on 2006-08-03 for cleaning tool assembly and related method of use.
Invention is credited to Perry S. Dotterman, Kristine K. Krumhus, Michael J. Kubes, Arthur V. Lang, Byron E. Trotter, Diane R. Wolk.
Application Number | 20060168748 11/045701 |
Document ID | / |
Family ID | 36754923 |
Filed Date | 2006-08-03 |
United States Patent
Application |
20060168748 |
Kind Code |
A1 |
Dotterman; Perry S. ; et
al. |
August 3, 2006 |
Cleaning tool assembly and related method of use
Abstract
A cleaning tool assembly and method of use are disclosed for
cleaning hard surfaces, such as bathroom surfaces. The cleaning
tool assembly includes a cleaning tool and a cleaning pad that
combine to define at least three distinct cleaning surfaces. The
cleaning tool includes a handle connected to a head assembly that
otherwise maintains the cleaning pad and provides a cleaning
implement and a compliant cleaning edge surface. In one embodiment,
the handle is expandable. In another embodiment, the cleaning pad
includes a dry bleach composition.
Inventors: |
Dotterman; Perry S.;
(Maplewood, MN) ; Kubes; Michael J.; (Oakdale,
MN) ; Wolk; Diane R.; (Woodbury, MN) ; Lang;
Arthur V.; (Maplewood, MN) ; Trotter; Byron E.;
(St. Paul, MN) ; Krumhus; Kristine K.; (River
Falls, WI) |
Correspondence
Address: |
3M INNOVATIVE PROPERTIES COMPANY
PO BOX 33427
ST. PAUL
MN
55133-3427
US
|
Family ID: |
36754923 |
Appl. No.: |
11/045701 |
Filed: |
January 28, 2005 |
Current U.S.
Class: |
15/115 ; 15/114;
15/118; 15/228 |
Current CPC
Class: |
A47L 13/12 20130101;
A47L 13/24 20130101; C11D 17/049 20130101; A47L 13/17 20130101;
C11D 3/3947 20130101; A47L 13/256 20130101; B25G 3/38 20130101 |
Class at
Publication: |
015/115 ;
015/228; 015/114; 015/118 |
International
Class: |
A47L 13/12 20060101
A47L013/12 |
Claims
1. A cleaning tool assembly for cleaning hard surfaces, such as
bathroom surfaces, the cleaning assembly comprising: a cleaning
tool including: a handle, a neck extending from the handle, a head
defining a first side, a second side, and a perimeter having a
thickness, wherein the first side is connected to the neck opposite
the handle and includes a cleaning implement, and further wherein
at least a portion of the perimeter defines a compliant edge
surface; and a cleaning pad attached to the second side of the
head; wherein upon final assembly, at least three distinct, usable
cleaning surfaces are provided by the cleaning implement, the
compliant edge surface, and the cleaning pad.
2. The cleaning tool assembly of claim 1, wherein the cleaning
implement, the compliant edge surface, and the cleaning pad are of
dissimilar materials.
3. The cleaning tool assembly of claim 2, wherein the cleaning
implement includes bristles, and the head includes a foam pad
defining the compliant edge surface.
4. The cleaning tool assembly of claim 1, wherein the handle is
expandable.
5. The cleaning tool assembly of claim 4, wherein the handle
includes a locking mechanism for selectively locking the handle at
a selected length.
6. The cleaning tool assembly of claim 5, wherein the handle
further includes: an outer tubular member; and an inner shaft;
wherein the inner shaft is slidably received within the outer
tubular member, and further wherein the locking mechanism includes
a lever body adapted to selectively engage one of a plurality of
spaced apertures formed in the inner shaft.
7. The cleaning tool assembly of claim 6, wherein the lever body is
provided as part of a grip body formed on the outer tubular member
and the inner shaft is connected to the neck such that in a
retracted position of the handle, the grip is adjacent the neck and
in an extended position of a handle, a longitudinal spacing between
the grip and the neck is increased.
8. The cleaning tool assembly of claim 6, wherein the lever body is
provided as part of a grip body formed on the outer tubular member
that is adapted to conform to a user's hand, and further wherein a
non-circular, cross-sectional interface is defined between the
inner shaft and the outer tubular member such that a rotational
orientation of the grip body relative to the neck is fixed.
9. The cleaning tool assembly of claim 1, wherein the head has a
generally triangular shape.
10. The cleaning tool assembly of claim 1, wherein the head
includes a plate and a support pad secured to the plate, and
further wherein the plate is more rigid than the support pad and
defines the first side of the head.
11. The cleaning tool assembly of claim 10, wherein the plate and
the support pad have a similar shape, and further wherein the plate
is smaller than the support pad.
12. The cleaning tool assembly of claim 10, wherein the plate
defines a central section formed along a line bisecting the front,
and opposing side sections extending laterally from opposite sides,
respectively, of the central section, and further wherein the side
sections are flat for uniformly translating a pushing force applied
to the central section.
13. The cleaning tool assembly of claim 10, wherein the plate
defines a groove for selectively receiving and maintaining the neck
in a connected position in which the neck is locked relative to the
head.
14. The cleaning tool assembly of claim 1, wherein the cleaning pad
is releasably attached to the second side of the head.
15. The cleaning tool assembly of claim 14, wherein the head has a
generally triangular shape and is oriented relative to the neck
such that a front is defined at an apex of the generally triangular
shape and a back is defined along an edge opposite the front, and
further wherein the back edge includes a central region disposed
between opposing side regions, the central region extending
inwardly toward the front relative to the side regions to define a
cutout for facilitating removal of the cleaning pad from the
head.
16. The cleaning tool assembly of claim 15, wherein a planar shape
of the cleaning pad generally matches a planar shape of the head
except for the cutout such that upon assembly to the head, the
cleaning pad is accessible via the cutout.
17. The cleaning tool assembly of claim 1, wherein the cleaning pad
includes a bleach composition.
18. A cleaning assembly kit for cleaning hard surfaces, such as
bathroom surfaces, the kit comprising: a first cleaning pad; a head
assembly including a neck attached to a head, the head defining a
first side, a second side, and a perimeter, wherein the first side
is connected to the neck and includes a cleaning implement and
further wherein at least a portion of the perimeter defines a
compliant edge surface; a handle provided apart from the head
assembly and attachable to the neck; and a container containing the
cleaning pad, the head assembly, and the handle; wherein the
cleaning pad is attachable to the second side of the head.
19. The kit of claim 18, wherein the first cleaning pad includes a
bleach component.
20. The kit of claim 18, wherein the handle is transitionable
between an extended position and a retracted position, and further
wherein in the extended position, the handle has a length of at
least 28 inches, and even further wherein the container has a
length of not more than 12 inches.
21. A cleaning tool for use with a cleaning pad for cleaning hard
surfaces, such as bathroom surfaces, the cleaning tool comprising:
a handle; a neck extending from the handle; and a head defining a
first side, a second side, and a thickness, wherein: the first side
is connected to the neck opposite the handle, a cleaning implement
is provided on the first side, attachment bodies are provided on
the second side for releasably maintaining a cleaning pad, at least
a portion of the thickness is comprised of a compliant material,
and the head has a generally triangular shape.
22. The cleaning tool of claim 21, wherein the handle is
transitionable between a longitudinally extended position and a
longitudinally retracted position.
23. A method of cleaning hard surfaces in a room, such as bathroom
surfaces, the method comprising: providing a cleaning tool assembly
including: a handle, a neck extending from the handle, a head
connected to the neck and including a top side having a cleaning
implement, a thickness defining a perimeter at least a portion of
which forms a compliant edge of surface, a cleaning pad attached to
a bottom side of the head; performing a first surface cleaning
operation on a surface in a room with the cleaning pad; performing
a second surface cleaning operation on a surface of the room with
the cleaning implement; and performing a third surface cleaning
operation on a surface in the room with the compliant edge surface;
wherein the first, second, and third cleaning operations are
performed during a single cleaning session and are characterized by
the cleaning pad remaining attached to the head.
24. The method of claim 23, wherein the first cleaning operation
includes applying bleach provided by the cleaning pad.
25. The method of claim 23, wherein the first cleaning operation is
characterized by the handle pivoting relative to the head, and the
second cleaning operation is characterized by the handle being
locked relative to the head.
26. The method of claim 23, wherein the handle is expandable
between an extended position and a retracted position, and further
wherein the first cleaning operation is characterized by the handle
being in the extended position and the second cleaning operation is
characterized by the handle being in the retracted position.
Description
BACKGROUND
[0001] The present invention relates to a cleaning tool. More
particularly, it relates to a manual. cleaning tool assembly useful
for cleaning various surfaces, such as bathroom surfaces.
[0002] A wide range of products and tools are currently available
for assisting consumers with cleaning tasks. Many, such as sponges,
mops, brooms, brushes, etc., have been available for countless
years. Others, such as hand-held wipes, spray-on cleaning
chemicals, liquid-containing/dispensing implements, scouring pads,
etc., represent more recent developments. Along these same lines,
improvements to these and other products and tools are constantly
being developed in an effort to address actual or perceived
consumer needs presented by common cleaning tasks. Unfortunately,
while advancements have certainly eased the efforts required to
perform many cleaning tasks, other common consumer cleaning-related
complaints remain unresolved.
[0003] One particularly demanding chore faced by consumers (both in
the home and in commercial/industrial settings) is cleaning a
bathroom. Most bathrooms include diverse, hard surfaces (e.g.,
floor, sink, countertop, toilet, tub, shower stall, etc.) that are
frequently exposed to debris that are difficult to completely
remove, a condition exacerbated over time by the high humidity
conditions of most bathrooms. For example, in addition to dirt,
bathroom shower stall walls and doors can be contaminated with
highly adherent soap scum and hard water stains. Shower stall
floors can be similarly dirtied, as can bathtub walls/floors. Also,
most bathrooms have tiled floors and/or walls and/or vanities.
While water-resistant, the tiles readily accumulate hard-to-remove
debris. Even more problematic is the exposed grout that otherwise
holds individual tiles together and to a support surface. Grout is
aesthetically pleasing, but has a tendency to "lock in" dirt and
other debris. Clearly, the toilet and surrounding areas present
additional cleaning concerns.
[0004] Beyond the difficulties associated with removing many of the
common debris found in bathrooms, consumers have a need to ensure
that all surfaces are thoroughly cleansed. The high humidity
environment of most bathrooms in combination with the types of
contaminants normally found (e.g., bacteria) can result in mold or
mildew if not properly removed. In fact, most consumers desire to
not only achieve a visually clean appearance, but also to eliminate
unwanted materials on a microscopic level. Thus, for example,
disinfectant products are oftentimes applied to bathroom surfaces
to "kill" bacteria, fungus, etc.
[0005] In light of the above, most consumers are forced to employ
multiple different products and tools when performing a bathroom
cleaning task. Hand-held sponges are used to wipe surfaces. Brushes
and scrubbing pads are used to scour surfaces. Mops are used to
clean floors. Some of these tools are amenable for a user to deploy
while standing upright, while others are shorter, and can be more
physically taxing on the user depending upon the cleaning task
being performed. Conversely, the consumer may not have access to
(or there may not exist) an appropriately-sized tool for performing
a particular task. For example, a common consumer complaint is
having to repeatedly reach and stretch when attempting to clean
shower stall walls with a hand-held sponge. Regardless, a number of
different tools must be transported to and from the bathroom. In
addition, consumers often bring various aggressive cleaning
products, such as bleach or other harsh chemicals, to the bathroom
(e.g., spray bottle or aerosol can). In many cases, the dispensed
chemical(s) must be manually worked or scrubbed into the surface
being cleaned, such as with a sponge. Under these circumstances,
the user's hand(s) are in direct, or nearly direct, contact with
cleaning solutions, posing certain health concerns (e.g., skin
rashes). Similarly, many popular liquid or liquid-like cleaning
products generate fumes or odors (e.g., bleach) that are repugnant,
even hazardous, to users if inhaled; where the user applies such a
product by hand, the fumes generated by the product are in close
proximity to the user's face thus increasing the likelihood of
inhalation, especially in the confined environment of most
bathrooms.
[0006] Bathroom cleaning is a necessary, but physically difficult
task faced on a regular basis. While various tools and products are
available for achieving enhanced cleanliness, multiple cleaning
implements are still required and the task itself remains quite
time-consuming and potentially hazardous. Therefore, a need exists
for a cleaning assembly or device that addresses some, if not all,
of the difficulties associated with cleaning a bathroom or similar
area.
SUMMARY
[0007] One aspect of the present invention relates to a cleaning
tool assembly for cleaning hard surfaces, such as bathroom
surfaces. The cleaning tool assembly includes a cleaning tool and a
cleaning pad. The cleaning tool includes a handle, a neck, and a
head. The neck extends from the handle. The head defines a first
side, a second side, and a perimeter having a thickness. The first
side of the head is connected to the handle and includes a cleaning
implement. Further, at least a portion of the perimeter defines a
compliant edge surface. Finally, the cleaning pad is attached to
the second side of the head. With this in mind, upon final
assembly, at least three distinct, usable cleaning surfaces are
provided by the cleaning implement, the compliant edge surface, and
the cleaning pad. Thus, the cleaning tool assembly provides a user
with the ability to perform at least three different cleaning
operations, a feature effectively required by certain cleaning
tasks, such as cleaning a bathroom. In one alternative embodiment,
the cleaning pad is releasably attached to the head. In another
alternative embodiment, the cleaning pad includes a bleach
composition.
[0008] Another aspect of the present invention relates to a
cleaning assembly kit for cleaning hard surfaces, such as bathroom
surfaces. The kit includes a cleaning pad, a head assembly, a
handle and a container. The head assembly includes a neck and a
head, with the head defining a first side, a second side, and a
perimeter. The first side of the head is connected to the neck and
includes a cleaning implement. Further, at least a portion of the
perimeter defines a compliant edge surface. The handle is provided
apart from the head assembly, and can be assembled to the neck.
Finally, the cleaning pad, the head assembly, and the handle are
contained within the container. During use, the cleaning pad is
attachable to the second side of the head. In one embodiment, the
handle is extendable to a length of at least 28 inches and the
container has a length of not more than 12 inches.
[0009] Yet another aspect of the present invention relates to a
cleaning tool for use with a cleaning pad for cleaning hard
surfaces, such as bathroom surfaces. The cleaning tool includes a
handle, a neck, and a head. The neck extends from the handle. The
head defines a first side, a second side, and a thickness. The
first side of the head is connected to the neck and is provided
with a cleaning implement. Attachment bodies are provided on the
second side of the head for releasably maintaining a cleaning pad.
At least a portion of the thickness is comprised of a compliant
material. Finally, the head has a generally triangular shape. In
one embodiment, the neck is pivotally attached to the head.
[0010] Yet another aspect of the present invention relates to a
method of cleaning hard surfaces in a room, such as bathroom
surfaces. The method includes providing a cleaning tool assembly
including a handle, a neck, a head, and a cleaning pad. The neck
connects the handle and the head. The head includes a top side
having a cleaning implement and a thickness defining a perimeter at
least a portion of which forms a compliant edge surface. Finally,
the cleaning pad is attached to a bottom side of the head. With
this in mind, the method further includes performing a first
cleaning operation on a surface in the room with the cleaning pad;
performing a second cleaning operation on a surface in the room
with the cleaning implement; and performing a third cleaning
operation on a surface in the room with the compliant edge surface.
To this end, the first, second, and third cleaning operations are
performed during a single cleaning session and are characterized by
the cleaning pad remaining attached to the head. In one embodiment,
the first cleaning operation includes applying bleach to the
surface, with the bleach being provided by the cleaning pad. In
another embodiment, a fourth cleaning operation is performed by
replacing the cleaning pad with a second cleaning pad providing a
differing cleaning attribute.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a perspective, exploded view of a cleaning tool
assembly in accordance with the present invention;
[0012] FIG. 2A is a side view of the cleaning tool assembly of FIG.
1 in a retracted state;
[0013] FIG. 2B is a top view of the cleaning tool assembly of FIG.
2A (at a smaller scale) in an extended state;
[0014] FIG. 3A is an enlarged, cross-sectional view of a portion of
the cleaning tool taken along the line 3A-3A of FIG. 2A;
[0015] FIG. 3B is an enlarged, cross-sectional view of the cleaning
tool of FIG. 3A taken along the line B-B;
[0016] FIG. 4 is an exploded, perspective view of a head assembly
portion of the cleaning tool assembly of FIG. 1;
[0017] FIG. 5 is a side view of a portion of the cleaning tool of
FIG. 2A, with a portion shown in cross-section;
[0018] FIG. 6A is a top perspective view of a portion of the head
assembly of FIG. 4;
[0019] FIG. 6B is a side view of the head assembly of FIG. 4;
[0020] FIG. 7 is an enlarged, cross-sectional view of a cleaning
pad in accordance with one embodiment of the present invention;
[0021] FIG. 8 is an enlarged, cross-sectional view of an
alternative embodiment cleaning pad in accordance with the present
invention;
[0022] FIG. 9 is a top view of a portion of the cleaning tool
assembly of FIG. 1 illustrating removal of a cleaning pad from the
cleaning tool; and
[0023] FIG. 10 is a simplified, exploded view of a cleaning
assembly kit in accordance with the present invention.
DETAILED DESCRIPTION
[0024] One embodiment of a cleaning tool assembly 20 in accordance
with the present invention is shown in FIG. 1. The cleaning tool
assembly 20 includes a cleaning tool 22 and a cleaning pad 24. The
various components are described in greater detail below. In
general terms, however, the cleaning pad 24 is attached to the
cleaning tool 22, and in one embodiment is releasably attached to
the cleaning tool 22. The resultant cleaning tool assembly 20
provides a plurality of cleaning surfaces for performing cleaning
tasks, such as cleaning various hard surfaces of a bathroom. To
this end, the cleaning tool assembly 20 can incorporate a number of
features highlighted below that promote convenient use under a
variety of circumstances including, in one embodiment, delivering a
cleaning solution (not shown), such as bleach, otherwise carried by
the cleaning pad 24.
A. Cleaning Tool
[0025] The cleaning tool 22 includes a handle 30 and a head
assembly 32. The head assembly 32 can be attached to the handle 30
in a variety of fashions, and is described in greater detail below.
Regardless, and in one embodiment, the handle 30 is configured to
be extendable, as best shown in FIGS. 2A and 2B. In particular, the
handle 30 is configured to be transitionable between a retracted
state or position (FIG. 2A) and one or more extended state(s) or
position(s) (FIG. 2B) in which an overall length of the handle 30
is increased as compared to the retracted position.
[0026] The extendable feature of the handle 30 is achieved, in one
embodiment, by forming the handle 30 to include a grip portion 40
and an extension shaft 42 (shown best in FIG. 2B). The shaft 42 is
slidably received within the grip portion 40 and is connected to
the head assembly 32. With this configuration, the shaft 42 can be
longitudinally extended and retracted relative to the grip portion
40 to increase and decrease a length, respectively, of the handle
30 and thus a longitudinal position of the head assembly 30
relative to the grip portion 40. As described in greater detail
below, in one embodiment, the handle 30 further includes a locking
mechanism 44 (referenced generally) adapted to selectively maintain
or "lock" the handle 30 at a selected longitudinal length.
[0027] The grip portion 40 is generally tubular in nature, and in
one embodiment includes a grip body 46, an intermediate segment 48
and an end segment 50. The grip body 46, the intermediate segment
48 and the end segment 50 can be formed separately and assembled to
one another; alternatively, components of the grip portion 40 can
be integrally formed. Regardless, the grip body 46, the
intermediate segment 48 and the end segment 50 collectively define
an internal passage 52 (shown with dashed lines in FIG. 2B) sized
to receive the shaft 42.
[0028] The grip body 46 can assume a wide variety of forms, and
preferably provides a contoured outer surface 54 configured to
facilitate grasping thereof by a user's hand (not shown). The outer
contoured outer surface 54 extends between a proximal end 56 and a
distal end 58. In addition, the grip body 46 forms a cavity 60
(referenced generally in FIG. 2B) adjacent the distal end 58 and
within which a lever assembly 62 is maintained, as described
below.
[0029] The intermediate segment 48 of the grip portion 40 is
affixed to, and extends rearwardly from, the proximal end 56 of the
grip body 46, and thus can assume a variety of shapes and sizes. In
one embodiment, the intermediate segment 48 is a tube having an
outer diameter less than an outer diameter of the grip body 46.
Because, in one embodiment, it is not intended for a user to grasp
the intermediate segment 48 during use, the intermediate segment 48
can be thinner than the grip body 46, and thus less expensive.
Alternatively, the intermediate segment 48 can be commensurate in
thickness with the grip body 46, and, in one embodiment, is
integrally formed with the grip body 46. In one embodiment, the
intermediate segment 48 is of sufficient length to longitudinally
space the grip body 46 and the end segment 50 at ergonomically
desired positions for convenient, natural grasping by both hands of
a user (i.e., one hand grasps the grip body 46 and the other hand
grasps the end segment 50). For example, in one embodiment, the
intermediate segment 48 defines a spacing between the grip body 46
and the end segment on the order of 5-15 inches. Alternatively,
other dimensions, either lesser or greater, are also
acceptable.
[0030] The end segment 50 is connected to the intermediate segment
48 opposite the grip body 46, and can assume a variety of shapes
and sizes. In one embodiment, the end segment 50 forms a hole 84
that provides a convenient means for hanging the cleaning assembly
20 from a hook (not shown) or similar body when not in use.
Alternatively, the hole 84 can be eliminated. Regardless, the end
segment 50 preferably has an increased outer diameter as compared
to the intermediate segment 48, sized for convenient grasping by a
user (not shown).
[0031] In one embodiment in which the grip body 46, the
intermediate segment 48, and the end segment 50 are separately
formed and subsequently assembled, differing materials can be
employed in the manufacture of each component. For example, in one
embodiment, the grip body 46 is formed of a molded plastic, the
intermediate segment 48 is a more rigid metal-based material, and
the end segment 50 has a rubberized exterior for enhanced handling
by a user (not shown). The end segment 50 need not have a
rubberized exterior, and can be formed from any acceptable material
such as polypropylene, thermoplastic rubber or ABS. The components
are preferably rigidly affixed to one another, such as by
frictionally mounting opposing ends of the intermediate segment
within corresponding passages of the grip body 46 and the end
segment 50. For example, the grip body 46 can define a passage (not
shown) adjacent the proximal end 56 thereof sized to frictionally
receive and maintain a portion of the intermediate segment 48.
Other attachment techniques (e.g., adhesive, mechanical connectors,
etc.) are equally acceptable; conversely, the grip body 46, the
intermediate segment 48 and the end segment 50 can be integrally
formed. Even further, one or more of the grip body 46, the
intermediate segment 48 and/or the end segment 50 can be
eliminated. Regardless, the grip portion 40 is sized to slidably
maintain the shaft 42 as described below.
[0032] As referenced above, the lever assembly 62 is connected to
the grip body 46. The lever assembly 62 forms a portion of one
embodiment of the locking mechanism 44. In particular, and with
additional reference to FIG. 3A, the lever assembly 62 includes a
lever arm 64, a pin 66, and a biasing device 68. In general terms,
the lever arm 64 is pivotally mounted to the grip body 46 via the
pin 66, with the biasing device 68 biasing the lever arm 64 to a
locked position.
[0033] The lever arm 64 defines a trailing end 70, an intermediate
portion 72 and a leading end 74 terminating in a finger 76. In one
embodiment, and as best shown in FIG. 2B, the trailing end 70 has
an increased width as compared to a remainder of the lever arm 64,
and defines a central depression 78 (referenced generally) sized
for receiving a user's thumb and/or finger (not shown).
Alternatively, the trailing end 70 can assume a variety of other
shapes and/or sizes. Regardless, and returning to FIG. 3A, the
lever arm 64 is sized in accordance with the cavity 60 otherwise
formed by the grip body 46, and is preferably configured such that
an outer surface 80 thereof generally matches the contour of the
outer surface 54 of the grip body 46, resulting in a streamlined
appearance. The intermediate portion 72 provides a pivot point at
the pin 66, and defines an inner surface 82 configured to interface
with the biasing device 68. Finally, the leading end 74, and in
particular the finger 76, extends downwardly (relative to the
orientation of FIG. 3A) from the intermediate portion 72, and is
adapted to selectively mate with a corresponding portion of the
shaft 42, as described below.
[0034] The pin 66 can assume a variety of forms, and is generally
constructed to pivotally connect the lever arm 64 to the grip body
46. Similarly, the biasing device 68 can have a number of different
constructions, and is adapted to bias the lever arm 64 toward a
locked position (i.e., biases the lever arm 64 clockwise (about the
pin 66) relative to the orientation of FIG. 3A). For example, in
one embodiment, the biasing device 68 is a torsional spring located
within the cavity 60 and bearing against the inner surface 82 of
the intermediate portion 72 between the pin 66 and the trailing end
70; this configuration biases the lever arm 64 to rotate or pivot
clockwise relative to the orientation of FIG. 3A. Notably, the
cavity 60 can be sized to limit overt movement or rotation of the
lever arm 64 in response to the force generated by biasing device
68, such as by abutting a top surface of the lever arm 64 in the
locked position of FIG. 3A. Alternatively, a number of other
configurations for the lever assembly 62 can be employed, and the
lever assembly 62 need not be permanently attached to the grip body
46.
[0035] With reference to FIGS. 2B and 3A, the shaft 42 is, in one
embodiment, a rigid tubular structure defining first and second
ends 90, 92. With this in mind, the shaft 42 forms a longitudinal
passage 94 (FIG. 3A) and a plurality of transverse locking recesses
96 (FIG. 3A). In one embodiment, the longitudinal passage 94
extends between the first and second ends 90, 92. Regardless, the
longitudinal passage 94 is sized to receive and maintain a
corresponding portion of the head assembly 32 as described in
greater detail below. To this end, the shaft 42 includes an
opposing pair of grooves 98 that further facilitate attachment of
the head assembly 32 to the shaft 42 (it being understood that for
purposes of clarification, the head assembly 32 is shown
disassembled from the shaft 42 in FIG. 3A). As best shown in FIG.
2B, the recesses 96 are spaced along an exterior of the shaft 42
and are sized to selectively receive the finger 76 (FIG. 3A)
provided by the lever assembly 62. The recesses 96 can be
identically sized holes or other forms of indentations relative to
an outer diameter of the shaft 42. Thus, in one embodiment, the
recesses 96 form a complimentary portion of the locking mechanism
44. For example, and with reference to FIGS. 3A and 3B, when
properly aligned, the finger 76 is received within a corresponding
one of the recesses 96. Because the lever arm 64, and thus the
finger 76, is biased to the locked position of FIGS. 3A and 3B via
the biasing device 68, in this locked position, the locking
mechanism 44 "locks" the grip portion 40 relative to the shaft 42.
When desired, the locking mechanism 44 can be "released" by a user
(not shown) pressing down (relative to the orientation of FIG. 3A)
on the trailing end 70 of the lever arm 64 with sufficient force to
overcome the biasing device 68. This action, in turn, pivots or
rotates the finger 76 out or away from the recess 96, allowing the
shaft 42 to freely slide relative to the grip portion 40.
[0036] Once the locking mechanism 44 is released (e.g., the user
(not shown) maintains the lever arm 64 in the lifted position
whereby the finger 76 is not within one of the recesses 96), the
user can slide the shaft 42 relative to the grip portion 40 to
position the handle 30 at a desired length. For example, the
plurality of recesses 96 can include first, second and third
recesses 96a-96c (as shown in FIG. 2B). In a retracted position,
the grip portion 40 is positioned relative to the shaft 42 such
that the finger 76 can engage within the first recess 96a. In a
first extended position, the grip portion 40 is positioned relative
to the shaft 42 such that the finger 76 nests within the second
recess 96b upon releasing the lever arm 64 (with the biasing device
68 acting to bias the lever arm 64 toward the locked position in
which the finger 76 extends within the second recess 96b once
properly aligned). Thus, the handle 30 has an overall length in the
first extended position greater than a length in the retracted
position. Similarly, a second extended position of the handle 30,
with a length greater than the first extended position, is achieved
upon aligning the finger 76 with the third recess 96c. The number
of extended positions available with the handle 30 is thus a
function of the number of recesses 96 (it being understood that
more or less of the recesses 96 can be provided as compared to the
illustration of FIG. 2B). A spacing between adjacent ones of the
recesses 96 can be uniform along a length of the shaft 42, or can
vary. Regardless, the shaft 42 is preferably configured such that
in the retracted position, the head assembly 32 abuts the distal
end 58 of the grip body 46 thereby defining a minimal overall
length of the cleaning assembly 20, as shown in FIG. 2A. In one
embodiment, the handle 30 has a length on the order of 17.5 inches
when fully retracted, although other dimensions are also
acceptable.
[0037] With the above construction, the head assembly 32
longitudinally moves relative to the grip portion 40, and in
particular the grip body 46, with longitudinal movement of the
shaft 42 relative to the grip portion 40. Thus, regardless of an
extended length of the handle 30, a desired spacing between the
grip body 46 and the end segment 50 is unchanged. Alternatively,
the handle 30 can be constructed such that the grip body 46 is
directly connected to the head assembly 32, with extension of the
handle 30 being accomplished between the grip body 46 and the end
segment 50. Regardless, and with specific reference to FIG. 3B, in
one embodiment, the grip portion 40 and the shaft 42 are configured
to minimize or eliminate undesired rotation of the shaft 42
relative to the grip portion 40, thus ensuring proper alignment
between the finger 76 and a corresponding one of the recesses 96
otherwise provided by the shaft 42. In particular, the shaft
42/grip body 46 interface is non-circular in transverse
cross-section such that the shaft 42 does not readily rotate
relative to the grip body 46. For example, an outer surface of the
shaft 42 (and corresponding shape of the passage 52 provided by the
grip body 46) can be obround in transverse cross-section as shown;
alternatively, other cross-sectional shapes such as rectangular,
square, triangular, etc., are also acceptable.
[0038] Returning to FIGS. 2A and 2B, the head assembly 32 is
adapted for connection to the handle 30 and generally includes a
neck 110 and a head 112. As described in greater detail below, the
neck 110 can be connected or assembled to the handle 30 and
maintains the head 112. The head 112, in turn, provides a variety
of cleaning surfaces and maintains the cleaning pad 24.
[0039] With reference to FIG. 4, in one embodiment the neck 110 is
an elongated body configured to be pivotally attached to the head
112, and defines a handle end 114, a head end 116, and an
intermediate region 118 extending between the ends 114, 116. The
handle end 114 is adapted for mounting to the handle 30 (FIG. 2A)
and in particular the shaft 42 (FIG. 3A). Mounting of the neck 110
to the handle 30 can be accomplished in a variety of fashions, and
in one embodiment, the handle end 114 forms a pair of spaced legs
120a, 120b each including an outwardly extending tab 122 (the tab
122 associated with the leg 120a is visible in the view of FIG. 4).
In particular, the handle end 114 extends from a shoulder 124 of
the intermediate region 118, with the legs 120a, 120b combining to
define an outer diameter that is less than an outer diameter of the
shoulder 124. The legs 120a, 120b are inwardly deflectable toward
one another, but naturally assume the position shown in FIG. 4.
With this configuration, then, the handle end 114 is adapted for
mounting to the first end 90 of the shaft 42 as best shown in FIG.
5 (that otherwise depicts a portion of the shaft 42 in
cross-section and apart from the grip portion 40 (FIG. 2A)). More
particularly, the neck 110 is assembled to the shaft 42 by
inserting the handle end 114 within the passage 94 of the shaft 42
at the first end 90 thereof. In an unloaded state, the legs 120a,
120b combine to define an outer diameter that is slightly greater
than a diameter of the passage 94. However, the deflectable nature
of the legs 120a, 120b allows the handle end 114 to be inserted
within the passage 94. Once the tabs 122 are aligned with
corresponding ones of the grooves 98 of the shaft 42, the legs
120a, 120b naturally deflect outwardly such that the tabs 122 nest
within a corresponding groove 98, thus "locking" the neck 110 to
the shaft 42. In one embodiment, the handle end 114/shaft 42 are
configured such that the locked relationship is not readily
reversed by a user (e.g., a user cannot easily remove the handle
end 114 from the passage 94 once assembled) due to, for example,
abutment between the tabs 122/shaft 42 along a plane (referenced
generally at 125 in FIG. 5) that is perpendicular to a longitudinal
axis of the shaft 42; alternatively, the handle end 114/shaft 42
can be configured such that the neck 110 is releasable from the
shaft 42. Even further, the neck 110 and the shaft 42 can be
integrally formed. Conversely, a variety of other interlocking
designs can be employed. For example, the legs 120a, 120b can be
provided as part of the shaft 42 for insertion within a
corresponding passage in the neck 110.
[0040] Returning to FIG. 4, and as previously described, the head
end 116 of the neck 110 is, in one embodiment, configured for
pivoting or rotating connection to the head 112 and can include a
transversely extending shank 126 and a rounded surface 128.
Assembly of the head end 116 to the head 112 is a function of a
construction of the head 112 itself, and thus is described in
greater detail below. In general terms, however, the neck 110 can
assume a variety of configurations varying from that shown, each
capable of facilitating connection to the head 112.
[0041] The intermediate region 118 preferably has a contoured
shape, tapering in outer diameter from a first section 130 adjacent
the handle end 114 to a second section 132 adjacent the head end
116. This one preferred configuration renders the first section 130
of appropriate size and shape for convenient grasping by a user's
hand (not shown), such that a user can readily operate the cleaning
assembly 20 (FIG. 1) via the neck 110. In other words, the handle
30 (FIG. 1) can be removed and a cleaning operation performed by
simply grasping and manipulating the neck 110, and in particular
the first section 130. To this end, the second section 132 is
preferably sized and shaped for rigidly engaging a corresponding
portion of the head 112, as described below. Alternatively, the
intermediate region 118 can assume a wide variety of other shapes
and sizes.
[0042] With continued reference to FIG. 4, in one embodiment the
head 112 is generally triangular in shape and includes a plate 140,
a support pad 142 and a mounting device 144 (referenced generally).
In general terms, the plate 140 maintains the support pad 142 and
is attachable to the neck 110. The support pad 142, in turn,
maintains the mounting device 144 that is otherwise adapted to
selectively receive the cleaning pad 24 (FIG. 1) as described
below. Thus, the head 112 can be described as having a first side
146 (defined by the plate 140), a second side 148 (referenced
generally in FIG. 4; defined by the support pad 142 opposite the
first side 146), and a perimeter 149 defined by the support pad
142. The generally triangular shape in conjunction with a location
and pivoting direction of the neck 110 relative to the head 112
creates an identifiable front 150 and a back 152, corresponding
generally with a visual impression created upon a user when the
cleaning tool assembly 20 is grasped at the handle 30 (FIG. 1).
[0043] With additional reference to FIGS. 6A and 6B (that better
illustrate the above described front 150 and back 152), the plate
140 has a leading section 154, a central section 156 and a trailing
section 158. The leading section 154 is defined at an apex of the
triangular shape defined by the plate 140 (i.e., the front 150),
whereas the trailing section 158 terminates at an edge 160 opposite
the leading section 154 (i.e., the back 152). With this convention
in mind, in one embodiment, central section 156 forms sides or
"wings" 162a, 162b as lateral extensions from a longitudinal
centerline 164 (FIG. 6A) that otherwise bisects the apex at the
leading section 154.
[0044] In one embodiment, a cleaning implement 166 is attached to
the plate 140 at the leading section 154 thereof. The cleaning
implement 166 can assume a variety of forms, and in one embodiment
is a plurality of bristles 168 (referenced generally) extending
outward from a top surface 170 (FIG. 6B) of the plate 140. The
bristles 168 can assume a variety of forms known in the art, and
preferably including rearward bristles 168a and forward bristles
168b. As best shown in FIG. 6B, the rearward bristles 168a extend
substantially perpendicular to a plane of the top surface 170 of
the plate 140. In one embodiment, the forward bristles 168b extend
at a non-perpendicular angle from the plate 140. In particular, the
forward bristles 168b extend at a forward angle from the plate 140
toward the front 150 (i.e., each of the forward bristles 168b
includes a base 172 and a free end 174; the forward bristles 168b
are oriented such that the base 172 of each of the forward bristles
168b is closer to the trailing section 158 of the plate 140 as
compared to the free end 174). This preferred, forwardly extending
orientation facilitates placement of the forward bristles 168b in
tight areas, such as corners and provides an ergonomically correct
position when a user manipulates the cleaning assembly 20 (FIG. 1)
via the neck 110 when the neck 110 is otherwise nested against the
head 112 as described below. In one embodiment, the bristles 168
terminates in a single bristle 168c (FIG. 6A) adjacent the front
150; by including a single, forward-most bristle 168c, a point-like
surface is provided for cleaning highly confined areas.
Alternatively, the cleaning implement 166 can assume a variety of
other forms, such as a scrubby pad, sponge, cloth, etc.
[0045] In addition to forming the sides 162a, 162b, the central
section 156 forms an attachment body 180 (referenced generally in
FIG. 4) configured for receiving the neck 110. In particular, the
attachment body 180 includes, in one embodiment, a pair of spaced
shoulders 182a, 182b extending from opposite sides of a groove 184.
Each of the shoulders 182a and 182b forms an aperture 186 (shown
for the shoulder 182a in FIG. 4) sized to receive a corresponding
portion of the shank 126 associated with the head end 116 of the
neck 110. In one embodiment, each of the shoulders 182a, 182b
further defines a slot 188 (best shown in FIG. 6A) that guides the
shank 126 into the corresponding aperture 186 upon assembly of the
neck 110 to the head 112. Regardless, the apertures 186 are
configured to facilitate pivoting attachment of the head end 116 to
the plate 140, with the groove 184 providing sufficient clearance
for the rounded surface 128 of the neck 110 during movement of the
neck 110 relative to the head 112. Alternatively, the attachment
body 180 can assume a number of other configurations capable of
pivotally connecting the neck 110 to the head 112. Even further,
the neck 110 can be permanently mounted to the head 112.
[0046] In one embodiment, the attachment body 180 is configured to
position the neck attachment point (e.g., the apertures 186)
approximately at a center point of the plate 140 (plus or minus 0.5
inch) relative to a longitudinal length thereof. More particularly,
and as best shown in FIG. 6A, the apertures 186 are in close
proximity to a longitudinal center point C of the plate 140. This
one preferred location promotes the application of a pushing force
onto the plate 140, and thus the head 112, via the neck 110 (FIG.
4) that is otherwise attached to the handle 30 (FIG. 1) at a
location that does not cause the head 112 to "flip" up or down
(i.e., the front 150 or back 152 raises away from the surface being
cleaned) when the neck 110 is otherwise positioned at an angle
relative to the head 112. In other words, during normal use, the
handle 30, and thus the neck 110, will extend at an upward angle
(e.g., in the range of 30-75 degrees) relative to the head 112. In
this orientation, a pushing force applied to the head 112 via the
neck 110 would have a tendency to cause the head 112 to translate
or "flip" upwardly (pivoting at the front 150 or the back 152) if
the neck 110/head 112 connection point were offset from the center
point C (e.g., greater than 0.5 inch). By centrally positioning the
neck 110 connection point relative the head 112, undesired pivoting
of the head 112 relative to the surface being cleaned is
avoided.
[0047] The sides 162a, 162b defined by the central section 156 are
preferably symmetrical in nature, each having a contoured interior
area 200 and a planar exterior area 202. The contoured interior
areas 200 combine to define the groove 184, and have an increased
thickness as compared to the exterior areas 202. In this regard,
the contoured interior areas 200 each define a lateral protrusion
206 over the groove 184, as best shown in FIG. 6A. A distance
between the corresponding lateral protrusions 206 is sized to be
slightly smaller than an outer diameter or dimension of the second
section 132 (FIG. 4) of the neck 110 (FIG. 4). Thus, the neck 110
can be selectively retained within the groove 184 via frictional
engagement with the protrusions 206, as shown for example in FIG.
6B.
[0048] In addition, the plate 140, and in particular the sides
162a, 162b, are configured, in one embodiment, to distribute a
force applied to the head 112 via the neck 110 to exterior areas of
the head 112. By way of explanation, a force applied to the head
112 via the neck 110 will be centralized at the point of attachment
(i.e., the attachment body 180). During use, it is desirable for
this force to be distributed across a majority of the cleaning pad
24 (FIG. 1) that is otherwise attached to the second side 148 of
the head 112. By forming the sides 162a, 162b to each have the
thicker interior area 200 (i.e., adjacent the attachment body 180)
and the thinner exterior area 202, the force is more even
distributed across the cleaning pad 24. In a preferred embodiment,
the plate 140 is formed of a relatively rigid material (e.g.,
aluminum, stainless steel, plastic etc. that further promotes this
force distribution. Alternatively, other configurations for the
plate 140 can be employed.
[0049] Finally, the trailing section 158, and in particular the
trailing edge 160, preferably forms a cutout region 210 (FIG. 6A)
that facilitates removal of the cleaning pad 24 (FIG. 1). Features
of the cutout region 210 are best described with reference to a
corresponding feature of the support pad 142, and thus are provided
below. In general terms, however, the cutout region 210 is defined
as an inward extension of the trailing edge 156 toward the leading
section 154.
[0050] The support pad 142 preferably has a perimeter shape
mimicking a shape of the plate 140, and thus, in one embodiment, is
generally triangular. Thus, in one embodiment, and with reference
to FIG. 6A, the support pad 142 defines a leading side 220 at an
apex (e.g., the front 150) of the triangular shape and a trailing
side 222 (e.g., the back 152) opposite the leading side 220. The
support pad 142 is preferably formed of a compliant material, such
as foam, preferably closed cell and even more preferably
polyethylene. In one alternative embodiment, the support pad 142 is
capable of retaining liquid such as water, though this may not be
desirable for certain applications. Although the support pad 142
has a shape approximating a shape of the plate 140, is larger than
the plate 140 as best shown in FIG. 6A. With this construction,
then, the perimeter 149 of the head 112 is defined by a thickness
of the support pad 142. In particular, the perimeter 149 can be
described as having a plurality of connected edge cleaning surfaces
223 (such as surfaces 223a, 223b, and 223c). In addition, the
trailing side 222 of the support pad 142 is defined by opposing end
segments 224a, 224b and a central, cutout or cutout segment 226.
The end segments 224a, 224b are approximately co-planar, with the
cutout segment 226 extending inwardly relative to the leading side
220. In one embodiment, the cutout segment 226 approximates a
half-circle, although any other shape or combination of shapes is
equally acceptable. As described below, the cutout segment 226
provides a convenient location for a user (not shown) to grasp and
remove the cleaning pad 24 (FIG. 1) otherwise attached to the head
112.
[0051] Returning to FIG. 4, the mounting device 144 can assume a
variety of forms and in one embodiment is a plurality of connection
bodies 230. The connection bodies 230 are configured to selectively
retain the cleaning pad 24 (FIG. 1) and include, in one embodiment,
appropriate material such as a multiplicity of micro-hooks or
micro-loops. With this one construction, the connection bodies 230
are mounted to the support pad 142, extending from the support pad
142 opposite the plate 140 as shown in FIG. 6B. To promote
relatively uniform attachment of the cleaning pad 24 relative to a
perimeter of the head 112, six of the connection bodies 230 are
provided, strategically positioned at the locations shown in dashed
lines in FIG. 9. In one embodiment, the connection bodies 230 are
fastened to the support pad 142 at locations commensurate with a
perimeter of the plate 140. As described above, one embodiment of
the plate 140 distributes an applied force to the perimeter
thereof; thus, by locating the connection bodies 230 "beneath" a
perimeter of the plate 140, this distributed force promotes a more
complete connection between the cleaning pad 24 and the connection
bodies 230. Alternatively, more or less of the connection bodies
230 can be provided and at different locations. Further, the
mounting device 144 can assume an entirely different configuration.
For example, the mounting device 144 can include or be replaced by
one or more components that "wrap" the cleaning pad 24 along
sides/top of the head 112.
[0052] Returning to FIG. 4, assembly of the head 112 includes
fastening the support pad 142 to the plate 140. For example, the
support pad 142 can be affixed to the plate 140 via an appropriate
adhesive. Alternatively or in addition, mechanical fasteners can be
employed. Similarly, the mounting device 144 (e.g., the connection
bodies 230 in accordance with one embodiment of the present
invention) can be attached to the support pad 142 (or the plate
140) in a variety of fashions, such as an adhesive. Finally, the
neck 110 can be pivotally assembled to the head 112 via connection
of the head end 116 to the attachment body 180.
B. Cleaning Pad
[0053] Returning to FIG. 1, the cleaning pad 24 can assume a wide
variety of forms. For example, the cleaning pad 24 can be a wipe, a
scrubbing pad, bristles, sponge, etc., or a combination of
different materials useful for cleaning; thus, the term "cleaning
pad" as used in this specification, including the claims, is
inclusive of a wide variety of material constructions and is not
limited to a conventional "pad". In one embodiment, however, the
cleaning pad 24 is formulated to provide, or is loaded with a
cleaning solution, and in particular a bleaching agent, in dry
form. Such a loaded wipe or pad would be able to remove soap scum,
hard water stains and mildew with minimal scrubbing, a feature
desired by most users, and serve as a disinfectant. In general
terms, the bleach is applied in a dry form in the cleaning pad 24
and is activated upon contact with water to perform a cleaning
operation. The term "dry" is defined to mean "dry to the touch"
such as by having a moisture content of less than 5%, preferably
not greater than 2% under normal ambient conditions. A surfactant
carried by the cleaning pad 24 imparts a foaming characteristic and
assists in uniformly applying bleach to the surface being cleaned,
and serves to clean debris such as soap scum. By providing bleach
as part of the cleaning pad 24 in accordance with one embodiment, a
user is away from fumes that are traditionally associated with
chemicals that need to be sprayed on to the surface to be cleaned
from a spray bottle or aerosol container. Delivery of a dry bleach
composition via the cleaning pad 24 also minimizes streaking and
leaves minimal or no residue that might otherwise require
application of a specially formulated rinsing agent.
[0054] For example, in one embodiment, the cleaning pad 24 is a
two-sided, non-woven wipe comprised of two or more layers of
non-woven substrates. More particularly, and with reference to FIG.
7, the cleaning pad 24 includes a first layer 300, a second layer
302 and a bleach composition 304. The first layer 300 defines a
first side 306 of the cleaning pad 24, whereas the second layer 302
defines a second side 308. The bleach composition 304 is
encapsulated between the first and second layer 300, 302. For ease
of illustration, the bleach composition 304 is shown as being
applied in discrete locations; as described in greater detail
below, the bleach composition 304 can be randomly scattered between
the layers 300, 302. Further, while the cleaning pad 24 is shown in
FIG. 7 as having two of the non-woven-based layers 300, 302, in
alternative embodiments, additional non-woven layers can be
included.
[0055] The first layer 300 and the second layer 302 can assume a
wide variety of forms, and may or may not be identical. For
example, the layers 300, 302 can include any non-woven substrate,
such as 100% PET or polyester, that preferably does not degrade in
the presence of bleach. Alternatively, a variety of other non-woven
constructions are also acceptable. For example, the fibers
comprising the layers 300, 302 are preferably synthetic or
manufactured, but can include natural fibers. As used herein, the
term "fiber" includes fibers of indefinite length (e.g., filaments)
and fibers of discrete length (e.g., staple fibers). The fibers are
used in connection with one or both of the layers 300, 302 and can
be multicomponent fibers (i.e., a fiber having at least two
distinct longitudinally extensive structure polymer domains in the
fiber cross-section). Regardless, useful fibrous materials include,
for example, rayon (viscose), polypropylene, nylon, etc. The layers
300, 302 can also be comprised of varying blends of the
above-mentioned fibers that may or may not be of varying size or
denier. The layers 300, 302 can be formed by any known process such
as hydroentagling, thermal bonding, and spun bonding to name but a
few.
[0056] In one embodiment, the second layer 302 is more lofty as
compared to the first layer 300 (e.g., the second layer 302 is a
high loft needle-punched non-woven substrate whereas the first
layer 300 is a "tight" needle-punched non-woven substrate); with
this configuration, the bleach composition 304 can be released
primarily through the second layer 302. In a further embodiment,
the second layer 302 is thicker than the first layer 300. For
example, the second layer 302 can have a thickness in the range of
0.05-0.5 inch, whereas the first layer 300 can have a thickness in
the range of 0.02-0.2 inch, although other dimensions are also
acceptable.
[0057] In one embodiment, the first layer 300 forms the first side
306 to facilitate attachment to the mounting device 144 (FIG. 4),
whereas the second layer 302 forms the second side 308 in a manner
that promotes a desired cleaning operation. With this in mind, in
one embodiment, the first layer 300 includes a non-woven substrate
that defines a surface (i.e., the first side 306), either
integrally or by an additional material attached to the non-woven
substrate, that releasably engages the connections bodies 230 (FIG.
4). For example, where the connection bodies 230 form a plurality
of micro-hooks, the first side 306 of the cleaning pad 24 can
include or form a plurality of corresponding micro-loops, or
vice-versa. Conversely, the second layer 302 includes, in one
embodiment, a non-woven substrate that forms a cleaning surface
(i.e., the second side 308), either integrally or by an additional
material attached to the non-woven substrate, capable of cleaning
or scrubbing a surface. For example, the second layer 302 can be a
needle-tacked web that is laminated to or coated with a resin
bonded or printed scrubbing layer (e.g., an acrylic abrasive). In
other words, the second layer 302 either inherently forms the
second side 308 as a scrubby surface, or a scrubby surface can be
applied (e.g., laminated, coated, printed, etc.) to the second
layer 302. Alternatively, a wide variety of other configurations
are also acceptable. In one embodiment, one or both of the layers
300, 302 are capable of absorbing water and/or collecting
dirt/debris.
[0058] The bleach composition 306 includes a bleaching agent and a
nonionic or anionic surfactant, and may include other inert
ingredients such as a binder, chelating agent, fragrance, etc. With
the preferred bleach/surfactant formulation, the bleach composition
306, and thus the cleaning pad 24, can be presented to a user in
dry form, with the user exposing the cleaning pad 24 to water
during use. Alternatively, the cleaning pad 24 can be configured to
be presented to a user in wet form. With the one embodiment in
which the cleaning pad 24 is initially dry, the bleach composition
306 includes a mixture of a solid bleach and solid surfactant. For
example, in one embodiment, the bleach component or agent is sodium
dichloroisocyanurate, dihydrate salt (available, for example, from
3V Inc. of Charlotte, N.C. under the product designation "Oxidan
DCN JWSG"). Alternatively, a number of other bleaching agents, such
as hypochlorite (e.g., calcium hypochlorite), peroxide or
peroxy-based compounds (e.g., urea hydrogen peroxide, calcium
peroxide, zinc peroxide, Mg peroxide, etc.), peroxy carboxylic acid
or hydrophilic precursors thereof, perboric acid or precursors
thereof, percarbonic acid or precursors thereof, hypochloric acid
or hypobromic acid or precursors thereof, to name but a few, are
also acceptable. Other oxygen-releasing bleaching compounds useful
with the present invention include sodium perborate, sodium
mono-persulfate (available, for example, from Dupont Company under
the trade name Oxone.TM.), etc. Further, the compound
Peroxydone.TM. XL-10 from ISP Technologies Inc., that contains
hydrogen peroxide (bleaching agent) and poly-vinyl pyrrolidinone (a
film-forming polymer that can enhance the gloss of the surface
being cleaned) is another example of an acceptable bleach
composition.
[0059] The surfactant can also assume a variety of forms
appropriate for use with the selected bleaching agent. For example,
in one embodiment, the surfactant is sodium dodecylbenzene
sulfonate (available, for example, from Stepan Co. of Northfield,
Ill. under the product designation "Nacconol 90G"). Alternatively,
a number of other surfactants, such as anionic surfactants (e.g.,
alkyl ethoxy sulfates), amphoteric surfactants (e.g., amine
oxides), non-ionic surfactants (e.g., alcohol ethoxylates, alkyl
aryl phenols), zwitterionic surfactants, etc. are also available.
The surfactant chosen can also be used with other agents such as
chelators, builders, sequestrans, etc., as described below.
[0060] Where desired, the bleach composition 304 can further
include an appropriate binder. For example, caprolactam (available,
for example, from Dow Chemical Co. of Midland, Mich. under the
product designation "Tone Polymer, P767") has been found to be
useful in binding or adhering the layers 300, 302. Alternative
binders include, for example, copolyesters, copolyamides,
ethylene-vinyl acetate (EVA) and other hot melt powder adhesives.
The binder preferably exhibits melting below 150 degree F. for low
temperature adhesion of the two non-woven layers 300, 302, greatly
assisting in handling of the surfactant and bleaching agent(s)
below their flash points. Further, the binder can assist in the
controlled release of the cleaning chemical.
[0061] The bleach composition 304 can further include other
components, such as bleach activator(s) (e.g., tetracetyl ethylene
diamine, NOBS, acyl triethyl citrate, nonylamide of peradipic acid,
etc.); bleach catalyst(s) (e.g., complexes of metals such as Co, Mn
and Fe, etc.); thickening agent(s) (water-soluble thickening
polymer or solvent such as propylene glycol); fragrance(s);
etc.
[0062] The bleach composition 304 preferably includes 60%-95%
surfactant, 5%-40% bleach (more preferably approximately 5%-10%
bleach), and 0%-30% binder. For example, acceptable bleach
compositions have been formulated with surfactant/bleach/binder
ratios of 67/23/10; 80/10/10; 70/10/20; and 90/10/0. In one
embodiment, the bleach composition 304 is provided in dry form,
with a mass of approximately 5-20 grams per cleaning pad, more
preferably 5-10 grams per cleaning pad, with a targeted coating
amount of 250-400 g/m.sup.2.
[0063] Regardless, in one embodiment, the bleach composition 304 is
formed as a powder blend (e.g., milling the individual powder
ingredients) and is coated on to the first or second layer 300 or
302 (and subsequently encapsulated by the other layer 300 or 302).
In one preferred embodiment, the bleach composition is scatter
coated on to the first or second layer 300 or 302. Scatter coating
of the dry powder bleach composition 304 avoids exposing the
bleaching agent to moisture or water that would otherwise
undesirably activate the bleaching agent and enable the pre-mature
release of chlorine during manufacture. Alternatively, the bleach
composition can be coated via calender roll. Even further, the
bleach composition 304 can be formed as a viscous paste (e.g.,
mixture of surfactant, bleaching agent and a solvent (e.g., 10%
propylene glycol)) that is knife coated or extrusion coated on to
the first or second layer 300 or 302 to form one or more "stripes"
(e.g., akin to the illustration of FIG. 7). Even further, the
bleach composition 304 can be deposited directly onto the fibers
used to subsequently manufacture one or both of the non-woven
layers 300 and/or 302. The layers 300, 302 can then be laminated
together using, for example, a hot melt adhesive, needle-punching
or similar dry-processing techniques. Even further, component(s) of
the bleach composition 304 can be provided (e.g., scatter coated)
on to different layers of the cleaning pad. For example, FIG. 8
illustrates an alternative embodiment cleaning pad 320 including a
first layer 322, a second layer 324, a third layer 326, a first
portion bleach composition 328 and a second portion bleach
composition 330. In one embodiment, the first portion bleach
composition 328 includes a mixture of surfactant and binder that is
coated (e.g., scatter coated) on to the first layer (non-woven)
322. Following application of the second layer 324 (as described
below), the second portion bleach composition 330 in the form of a
bleaching agent is coated (e.g., scatter coated) on to the second
layer 324 and subsequently encapsulated by the third layer 326.
This one technique assists in the manufacture of a multi-layer
construction that lends itself to being more conformable during
cleaning tasks. Also, the separation of the surfactant and
bleaching agent by different non-woven layers can result in better
controlled-release properties.
[0064] Returning to the embodiment of FIG. 7, the layers 300, 302
can be bonded together in a variety of fashions to ensure
encapsulation of the bleach composition 304 that otherwise
facilitate a desired, slow release of the cleaning agents during
use. For example, where the bleach composition 304 includes a
binder/adhesive, the binder/adhesive facilitates adhesion of the
two non-woven substrate layers 300, 302 together. The resultant
laminate can be further laminated via ultrasonic bond(s) or seal(s)
that improve an overall aesthetic appeal of the cleaning pad 24 as
well as capturing of the powder bleach composition 304. Along these
same lines, the layers 300, 302 can first be bonded (e.g.,
ultrasonically bonded) along two or more corresponding edges to
define a pocket. The bleach composition 304 is then dispensed into
this pocket, followed by bonding of the remaining, corresponding
edges of the layers 300, 302 to thus encapsulate the bleach
composition. Even further, the layers 300, 302 (or additional
layers) can be bonded along two or more corresponding edges in a
manner that defines two pockets (either simultaneously or
consecutively). With this approach, a portion of the bleach
composition 304 (e.g., the first portion bleach composition 328 of
FIG. 8) is dispensed into the first pocket and a remaining portion
of the bleach composition 304 (e.g., the second portion bleach
composition 330 of FIG. 8) is dispensed into the second pocket.
Further bonding of the layers 300, 302 encapsulates the bleach
composition 304 portions.
[0065] Alternatively, where the bleaching composition 304 does not
include a binder, the bleach composition 304 can be coated (e.g.,
scatter coated) on to the first layer 300, followed by
needle-tacking or needle-punching fibers of the second layer 302
through the first layer 300 to encapsulate and hold the powdered
bleach composition 304 between the two layers 300, 302.
[0066] It will be understood that the above descriptions reflect
but a few possible configurations of the cleaning pad 24. Once
again, while in one embodiment the cleaning pad 24 includes a
bleach composition, in other embodiments, the cleaning pad 24 does
not include a bleach composition. Further, the cleaning pad 24 can
include one or more differing cleaning characteristics (e.g.,
sponge, scouring surface, bristles, encapsulated cleaning
chemicals, etc.). Preferably, the cleaning pad 24 has a size and
shape generally akin to that of the second side 148 (FIG. 4) of the
head 112 (e.g., the planar size and shape of the support pad 142)
and thus is, in one embodiment, generally triangular. With
additional reference to FIG. 9 that otherwise shows the cleaning
pad 24 assembled to the head 112, however, the cleaning pad 24 does
not include a cutout feature (i.e., does not incorporate a feature
or shape akin to the cutout segment 226 of the support pad 140).
Instead, a trailing edge 340 of the cleaning pad 24 is
approximately linear in one embodiment. As described in greater
detail below, this relationship effectively defines a grasping
region 342 on the cleaning pad 24 that is otherwise "exposed" via
the cutout segment 226 and that facilitates removal of the cleaning
pad 24. Alternatively, the cleaning pad 24 can have any other shape
and/or size.
C. Cleaning Assembly Kit
[0067] Returning to FIG. 1, regardless of an exact configuration of
the cleaning pad 24, the cleaning tool assembly 20 is, in one
embodiment, made available to consumers in the form of a kit. In
particular, and with reference to FIG. 10, one embodiment of a kit
350 in accordance with the present invention includes the handle
30, the head assembly 32, one or more of the cleaning pad(s) 24,
and a container 352. In kit form, the handle 30, the head assembly
32 and the cleaning pad 24 are separately packaged within the
container 352 for subsequent assembly by a user (not shown). In one
embodiment, the extendable nature of the handle 30 enables the
resultant cleaning assembly 20 (FIG. 1) to be highly conducive to
upright operation by a user (e.g., a user can stand while
performing a cleaning task on a floor using the cleaning assembly
20), yet packaged in the container 352 that is otherwise properly
sized for retail sales. By way of reference, most retailers desire
that products being displayed for sale be as small possible so as
to not occupy an inordinate amount of shelf space (or inventor
storage space). Normally, products having elongated handles (such
as a mop or broom) must be sold in a non-packaged form, typically
hanging from a hook or similar device; retailers view this
technique as being inefficient as a relatively large space is
required to ship, store and display the items. In accordance with
one embodiment of the present invention, these concerns are
overcome.
[0068] In particular, in one embodiment, a combination of the
handle 30 and the neck 110 (that otherwise combine to define an
effective length of the cleaning tool assembly 20) is extendable to
length of at least 28 inches, more preferably a length of at least
30 inches, and even more preferably a length of at least 32 inches.
Conversely, due to the retractable nature of the handle 30 and, in
some embodiments, an ability to quickly disassemble and assemble
components of the handle 30 (e.g., the end segment 50, the
intermediate segment 48 and/or the grip body 46 can be disassembled
from one another within the container 352), the container 352 has a
length (or major dimension) of not more than 14 inches, more
preferably not more than 13 inches, and even more preferably not
more than 12 inches, and even more preferably approximately 11.25
inches. With this in mind, the container 352 can assume a variety
of forms, such as a cardboard or paper box, plastic packaging, etc.
In an alternative embodiment, the cleaning tool assembly 20 (FIG.
1) is provided to consumers in a fully assembled form.
D. Method of Use
[0069] Regardless of how initially provided to a user, the cleaning
tool assembly 20 of the present invention is highly suitable for
performing cleaning tasks in a variety of environments, for example
cleaning hard surfaces in a bathroom. In many cleaning operations,
multiple different cleaning surfaces are normally encountered,
presenting unique obstacles, such as composition of the surface to
be cleaned (e.g., grout, tile, etc.), physical constraints
associated with the surface to be cleaned (e.g., corners, floors,
high walls, etc.), debris being removed (e.g., soap scum, hard
water stains, etc.), augmented end results (e.g., disinfecting,
gloss finishing, etc.) to name but a few. The cleaning assembly 20
can address one or more or all of these concerns as follows.
[0070] A user (not shown) can conveniently clean a floor or wall or
other surface beyond a normal reach of the user via the extendable
handle 30. For example, and with reference to FIGS. 2A and 2B, the
handle 30 can be extended to a desired length that otherwise
promotes ready cleaning of the surface in question by releasing the
locking mechanism 44 and extending the shaft 42 (and thus the head
assembly 32) relative to the grip portion 40 as previously
described. Once the handle 30 is at a desired length, the locking
mechanism 44 is actuated (e.g., the lever arm 64 is released) to
re-engage the grip portion 40 with the shaft 42. The cleaning pad
24 can then be employed to clean the surface in question via simple
manipulation of the handle 30 while the user remains standing. For
example, the cleaning pad 24 can be used to clean a bathroom floor
or wall. To this end, and in accordance with one embodiment in
which the cleaning pad 24 includes a dry bleach (e.g., the bleach
composition 304 of FIG. 7), the user can expose the cleaning pad 24
to water to promote release of the bleaching agent on to the
surface in question. Notably, due to the extended length of the
handle 30, the cleaning pad 24 (and thus the contained bleaching
agent in accordance with one embodiment) is spaced a relatively
large distance from the user's face (especially as compared to
conventional bleach applications in which a wipe or sponge is held
in the user's hand and used to apply the bleach along a surface),
thus minimizing the possibility of an adverse reaction to the
bleaching agent by the user. Further, as previously described, a
pushing force placed on the handle 30 is relatively uniformly
distributed across the head 112, and thus the cleaning pad 24, to
promote substantial interface between the surface being cleaned and
a majority of the cleaning pad 24 surface otherwise facing the
surface being cleaned.
[0071] In conjunction with, or apart from (either before or after
cleaning with the cleaning pad 24), the handle 30 can be
manipulated to present one of the cleaning edge surfaces 223 (FIG.
6A) provided by the support pad 142 to another surface to be
cleaned. For example, the cleaning edge surface 223 can be used to
clean (e.g., scrub) grout on a tile wall. Regardless, the cleaning
edge surface 223 presents, in one embodiment, a cleaning
characteristic differing from the cleaning pad 24. For example, the
preferred foam construction of the support pad 142 that otherwise
defines the cleaning edge surface 223 provides a compliant
attribute that more readily engages rough surfaces, such as grout,
and easily conforms to corners and curved surfaces.
[0072] In conjunction with, or apart from (either before or after
cleaning with the cleaning pad 24 and/or the cleaning edge surface
223), the handle 30 can be manipulated to present the cleaning
implement 166 to another surface to be cleaned. For example, in one
embodiment in which the cleaning implement 166 is a plurality of
bristles 168, the bristles 168 can be employed to scrub a surface,
such as tile, in an effort to clean hard-to-remove debris such as
soap scum or hard water stains. Regardless, to facilitate providing
adequate pressure on to the cleaning implement 166 during use, the
handle 30 can be maneuvered to a nested position in which the neck
110 is engaged by the head 112. For example, and as previously
described, the neck 110 can be tilted or pivoted relative to the
head 112 (for example via manipulation of the handle 30) such that
the neck 110 is engaged within the groove 184 of the head 112. In
this nested position, the head 112 does not move relative to the
neck 110/handle 30, thus promoting rigorous cleaning/scrubbing with
the cleaning implement 166. Regardless, in one embodiment, the
cleaning implement 166 provides a cleaning characteristic that
differs from the cleaning pad 24 and the cleaning edge surface
223.
[0073] Each of the above cleaning operations (i.e., cleaning with
the cleaning pad 24, the cleaning edge surface 223, and the
cleaning implement 166) is accomplished, in one embodiment, with
the cleaning assembly 20 remaining intact. That is to say, three
distinct cleaning activities can be preformed by the cleaning
assembly 20 alone, without altering the cleaning assembly 20 in any
way. The cleaning assembly 20 further facilitates additional
cleaning operations with only minor alterations. For example, the
handle 30 can be removed from the head assembly 32. The user can
then perform a cleaning task by simply grasping the neck 110 (such
as along the first section 130). To this end, the neck 110 can be
locked to the head 112 (such as via the attachment body 180 (FIG.
4) as previously described), such as where it is desired to use the
cleaning implement 166 in a confined space. Alternatively, the neck
110 can remain pivotable relative to head 112.
[0074] In addition, the cleaning assembly 20 is, in one embodiment,
adapted to promote easy replacement of the cleaning pad 24 with
another cleaning pad (not shown) that is either identical to, or
different from, the cleaning pad 24. For example, where the
cleaning pad 24 carries a bleach composition, once the user detects
that the bleach composition has been depleted, the cleaning pad 24
can be replaced by another, bleach composition-carrying cleaning
pad. Alternatively, the replacement cleaning pad can have a
different cleaning characteristic. For example, the replacement
cleaning pad can be a scrubbing pad. Alternatively, the replacement
cleaning pad can be a cloth or similar structure suited for drying
a surface being cleaned. Even further, the replacement cleaning pad
can include or carrying a finishing composition, such as a
finishing composition available under the trade name
ScotchGard.TM., available from 3M of St. Paul, Minn.
[0075] Regardless of the replacement pad configuration, removal of
the cleaning pad 24 from the cleaning tool 22 is, in one
embodiment, easily performed by the user (not shown). With specific
reference to FIG. 9 that otherwise depicts a top view of the head
112 having the cleaning pad 24 attached thereto, a user grasps the
grasping region 342 of the cleaning pad 24 through the cutout
segment 226 provided by the head 112. The cutout segment 226
affords access to a sufficient surface area of the cleaning pad 24
to allow for forceful pulling of the cleaning pad 24 from the head
112 (e.g., the user can apply sufficient pulling force to the
cleaning pad 24 to disengage the cleaning pad 24 from the
connection bodies 230). Once removed, the replacement cleaning pad
(not shown) is readily assembled to the head 112 in a similar
fashion. Alternatively or in addition, the cleaning pad 24 can
include a tab (not shown) or similar structure that can be grasped
by a user during a cleaning pad removal operation. Alternative
releasable connection designs can also be employed, such as
providing the cleaning pad 24 with an elastic perimeter that
"captures" the head 112; forming the cleaning pad 24 to include a
pocket that nests about the head 112; etc. Regardless, the head 112
remains part of the cleaning tool 22, and only the cleaning pad 24
is removed/replaced, thus minimizing disposal/replacement
costs.
[0076] The cleaning tool assembly, cleaning tool, kit, cleaning pad
and method of use of the present invention provides a marked
improvement over previous designs. Multiple hard surfaces of a room
or other area are readily cleaned using a single device that
provides diverse cleaning characteristics. The extendable handle
allows the user to stand while cleaning high or low surfaces with
minimal exertion. The handle can further pivot with respect to the
head where desired, and can also be locked with respect to the head
where desired. The cleaning pad can dispense bleach where desired,
and is easily replaced.
[0077] Although specific embodiments have been illustrated and
described herein, it will be appreciated by those of ordinary skill
in the art that a variety of alternate and/or equivalent
implementations may be substituted for the specific embodiments
shown and described without departing from the scope of the present
invention. For example, the cleaning tool can be configured to
contain a volume of liquid (e.g., water) that is selectively
dispensed during use. One such possible configuration includes the
handle being hollow and in fluid communication with an exit port(s)
on the head; liquid stored in the handle can thus be dispensed via
the exit port(s). Alternatively, the head can be configured to
define a scoop-like top surface; with this design, water or other
liquid can be temporarily stored in the scoop-like surface and then
dispensed as desired by the user, such as when cleaning a wall.
Similarly, the head can include a sponge-like material that holds
water or other liquid; during use, as pressure is applied by the
user to the head (such as via the handle), the contained water or
other liquid is then released from the sponge-like material.
Alternatively, the head can be configured to form or include a
thermoplastic rubber (TPR) or similar material, allowing the head
to be used as a squeegee.
* * * * *