U.S. patent number 3,761,991 [Application Number 05/129,468] was granted by the patent office on 1973-10-02 for scrubbing or buffing device.
Invention is credited to Theron V. Moss.
United States Patent |
3,761,991 |
Moss |
October 2, 1973 |
SCRUBBING OR BUFFING DEVICE
Abstract
A device for scrubbing and/or buffing surfaces comprising an
inner layer or pad of absorbent material having an open scrim
covering which protects the absorbent material from wear and
linting off during use and allows dirt and cleaning fluid to pass
freely through the scrim covering for absorption by the absorbent
material. The scrim covering may extend over one or both sides of
the absorbent material, and may also be made in the form of a boot
for placement around a conventional dust mop and the like.
Inventors: |
Moss; Theron V. (Shaker
Heights, OH) |
Family
ID: |
22440101 |
Appl.
No.: |
05/129,468 |
Filed: |
March 30, 1971 |
Current U.S.
Class: |
15/229.11;
15/230; 15/209.1; 15/228 |
Current CPC
Class: |
A47L
13/20 (20130101); A47L 13/44 (20130101); A47L
13/256 (20130101); A47L 13/16 (20130101) |
Current International
Class: |
A47L
13/20 (20060101); A47L 13/16 (20060101); A47l
013/16 () |
Field of
Search: |
;15/118,228,104.94,104.93,209,208,210,227,229R,229A,22R,230,219A,229AC
;161/57,58,50 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Machlin; Leon G.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. A device for scrubbing and/or buffing surfaces comprising a
layer of absorbent material having an open scrim covering over at
least one side of said absorbent material, said absorbent material
consisting of plural cords of yarn, said open scrim covering
protecting said cords against excessive wear and linting off and
allowing dirt and cleaning fluid to freely pass through the
openings in said scrim covering for absorption by said cords.
2. The device of claim 1 wherein said cords of yarn are elongated
and disposed parallel to each other.
3. The device of claim 1 wherein said cords are in the form of
loops.
4. A device for scrubbing and/or buffing surfaces comprising a
layer of absorbent material having open scrim coverings over both
sides of said absorbent material, and means securing said opening
scrim coverings together around their entire outer peripheries, one
of said open scrim coverings being provided with an enlarged
central opening for insertion and removal of said absorbent
material from between said open scrim coverings.
5. A device for scrubbing and/or buffing surfaces comprising a
layer of absorbent material having an open scrim covering over both
sides of said absorbent material, a tape extending around the
entire outer periphery of said absorbent material and scrim
covering binding the edges of said device, and a relatively stiff
cord also extending around the outer periphery of said scrim
covering and retained in place by said tape thus enhancing the
stiffness of said device and helping to retain its shape.
6. The device of claim 5 wherein said absorbent material is in the
form of a felt pad.
7. The device of claim 5 wherein said absorbent material is in the
form of a sponge pad.
8. The device of claim 5 which is generally rectangular in shape
for use with a square buff machine.
9. The device of claim 5 which is generally circular in shape for
use with a rotary buff machine.
Description
BACKGROUND OF THE INVENTION
This invention relates generally as indicated to a scrubbing or
buffing device for use in cleaning carpeting and other
surfaces.
An effective carpet cleaning device must provide sufficient
agitation of the surface being cleaned to loosen the dirt and also
have adequate absorption capability to pick up or remove the
loosened dirt and cleaning fluid from the surface. Scrubbing
brushes and the like may be used to loosen the dirt but cannot
effectively pick the dirt up, whereas scrubbing pads made of
absorbent material will effectively pick up the dirt if loosened
but are not very effective in loosening the dirt. Scrubbing pads
also have the disadvantage that they are relatively short lived and
subject to linting off onto the surface being cleaned.
SUMMARY OF THE INVENTION
With the foregoing in mind, it is a principal object of this
invention to provide a scrubbing or buffing device which has a high
capability for both loosening and picking up dirt from surfaces
being cleaned.
Another object is to provide such a device which utilizes absorbent
material for dirt and fluid pick up and an open scrim covering over
the absorbent material for protecting the same against wear and
linting off. The open scrim covering is also desirably somewhat
abrasive and agitates the surface being cleaned to loosen the
dirt.
Still another object is to provide such a device which remains in
place on the head of a square or rotary buff machine without the
use of supplemental securing means.
Yet another object is to provide such a device which may be mounted
directly on a conventional dust mop frame or used as a covering for
a conventional dust mop to clean carpets and other surfaces.
These and other objects of the present invention may be achieved by
providing an open scrim covering over an inner layer or pad of
absorbent material to protect the absorbent material against
linting off and excessive wear and allow dirt and water or other
cleaning fluid to pass freely through the scrim covering for
absorption by the absorbent material. The scrim covering is also
desirably somewhat abrasive and agitates the surface being cleaned
to assist in loosening the dirt. Both sides of the absorbent
material may be covered by the scrim material to allow either side
to be put face down for scrubbing or buffing, and the other side
will increase the grip between the pad and the head of either a
square or rotary buff machine. Various materials such as yarn,
felt, and sponge-like materials may be used as the filler material,
and the scrim covering may also be made in the form of a boot for
placement around a conventional dust mop or the like if
desired.
To the accomplishment of the foregoing and related ends, the
invention, then, comprises the features hereinafter fully described
and particularly pointed out in the claims, the following
description and the annexed drawings setting forth in detail
certain illustrative embodiments of the invention, these being
indicative, however, of but a few of the various ways in which the
principle of the invention may be employed.
BRIEF DESCRIPTION OF THE DRAWINGS
In the annexed drawings:
FIG. 1 is an isometric view of one form of scrubbing or buffing
device constructed in accordance with this invention having
portions of the scrim covering broken away to show the filler
material therebeneath;
FIG. 2 is a fragmentary transverse section through the device of
FIG. 1, taken on the plane of the line 2--2 thereof;
FIG. 3 is a fragmentary transverse section through a modified form
of scrubbing or buffing device utilizing looped yarn for the filler
material;
FIG. 4 is a fragmentary transverse section through still another
form of scrubbing or buffing device in accordance with this
invention utilizing a felt pad for the filler material;
FIG. 5 is a fragmentary transverse section through yet another form
of scrubbing or buffing device in accordance with this invention
utilizing sponge rubber for the filler material;
FIG. 6 is a top plan view of another form of scrubbing or buffing
device in accordance with this invention with portions broken way
to show the interior thereof;
FIG. 7 is an enlarged schematic illustration showing the manner in
which the bristles of a brush extend through the open scrim
covering for securing the device to the head of a buff machine;
FIG. 8 is an isometric view of yet another form of scrubbing or
buffing device in accordance with this invention provided with a
pocket on one side for attachment to a conventional mop frame;
portions of the device being broken away to show the interior
thereof;
FIG. 9 is an isometric view of still another form of scrubbing or
buffing device in accordance with this invention comprising a scrim
boot placed around a conventional dust mop, portions of the scrim
boot being broken away to show the dust mop therebeneath; and
FIG. 10 is an isometric view showing the scrim boot of FIG. 9 by
itself, portions of one side of the boot being broken away to show
the other side thereof.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now in detail to the drawings and first initially to
FIGS. 1 and 2 thereof, there is shown by way of example one form of
scrubbing or buffing device 1 in accordance with this invention
comprising an inner layer 2 of absorbent material having an open
scrim covering 3 extending over both sides thereof. The absorbent
filler material 2 may be retained between the outer scrim layers 3
by binding the edges of the scrim material with nylon or cotton
tape 4 with stitching 5 running through the tape, and the outer
scrim layers 3 may also be stitched at 6 to the absorbent filler
material 2 at suitable spaced apart intervals across the width
thereof as shown. A relatively stiff cord 19 may also be placed
around the outer periphery of the device as shown in FIG. 2 to
enhance the stiffness of the pad, helping to retain its shape when
pushed into corners and the like.
Preferably, the scrim material is made of nylon, but it will be
apparent that other materials may also be used for the scrim
covering, including polyethylene, polyester, polypropylene, and
rayon. The scrim material provides a protective covering for the
filler material, preventing excessive wear and linting off of the
filler material during use of the device, and the openings 7
therein also permit free passage of dirt and cleaning fluid such as
water through the scrim covering for absorption by the filler
material. In the form shown in FIGS. 1 and 2 the filler material 2
desirably consists of a plurality of substantially parallel cords 8
of yarn. However, it will be apparent that the cords need not be
arranged in parallel relation; nor is it necessary that the cords
be laid flat as shown in FIGS. 1 and 2. Thus, for example, in FIG.
3 the filler material 2' is shown as comprising looped cords 9
interposed between the outer scrim coverings 3'. Preferably, the
looped cords 9 are on both sides of a fabric backing 10, but it
will be apparent that the loops may be provided on only one side if
desired, in which event the backing for the loops may be one of the
scrim coverings.
Moreover, materials other than yarn may also be used for the filler
material 2', including a felt pad 11 as shown in FIG. 4 or a sponge
pad 12 as shown in FIG. 5. The advantage in using a sponge pad is
that it may be made out of nylon or other suitable material which
has a high absorbency, capable of picking up and releasing water
readily, and also dries very quickly. In any event, the filler
material, whether made of yarn, felt, or sponge material, may be of
any desired thickness, and the type of material may also be varied
to control the amount of absorption by the filler material.
The shape of the device 1 may also be varied in accordance with the
desired use. In FIGS. 1 and 2, for example, the device is shown as
being of a generally rectangular shape making it especially
suitable for use on a square buff machine, whereas in FIG. 6 the
device is shown as being of a generally circular shape 13 for use
with a rotary buff machine. The device may also be made in other
shapes as well such as the oval shape 14 shown in FIG. 8.
Whether the device is used on a square or rotary buff machine, the
scrim covering 3 or 3' minimizes the friction between the device
and carpet or other surface being scrubbed whereby the device will
remain in position on the machine due to the weight thereof without
the need for additional gripping means to retain the device in
place. However, a brush may be left on a rotary buff machine to
more securely retain the device in place due to the extension of
the bristles 15 of the brush through the openings 7' in the upper
scrim covering 3' as schematically illustrated in FIG. 7, and other
supplemental securing means may also be used as desired, including
the use of an abrasive pad between the driving disc and scrim pad.
The driving disc may also be provided with holes for flow of
shampoo or other cleaning agent through the disc to and from the
device through the openings 7' in the upper scrim covering 3'. The
openings 7' in the scrim covering 3' on the other side of the
device allow the carpet fibers to extend partially into the device
which aids in agitating the carpet to loosen dirt ground deeply
therein, and the scrim covering also has a slight abrasive action
which aids in loosening dirt as well.
While the various devices shown in FIGS. 1 through 7 are provided
with a scrim covering 3 or 3' on both sides of the filler material
2 or 2', it will be apparent that the scrim covering need only be
provided on one side of the filler material, and the other side may
either be exposed or covered by a suitable fabric material 17 (see
FIG. 8). Moreover, suitable means may also be provided on such
other side for attachment of the device to a suitable support.
Thus, for example, in the FIG. 8 embodiment a fabric pocket 16 is
provided on the other side of the device for receipt of a
conventional dust mop frame, and ties 18 are also provided for
tying the device to the frame.
In FIG. 9 the device consists of a conventional dust mop 20
attached to a conventional dust mop frame 21 in the usual manner
and having an open scrim covering in the form of a boot 22 shown
more clearly in FIG. 10 placed around the dust mop 20. One side of
the open scrim covering has an enlarged central opening therein to
permit insertion and removal of the absorbent material from between
the top and bottom layers of the open scrim covering as shown in
FIGS. 9 and 10, respectively. With the scrim boot 22 in place
around the dust mop, the dust mop may be used to scrub carpet or
other surfaces, after which the boot may be removed and the mop
used as a conventional dust mop as before.
From the foregoing, it will now be apparent that the various forms
of scrubbing and/or buffing devices described above provide a very
simple and effective means for scrubbing and cleaning various
surfaces and especially carpeting by agitating the surface to
loosen the dirt and absorbing the dirt and cleaning fluid without
linting off or causing excessive wear of the device. The devices
may also be made in various shapes for use with different shaped
holders, and they may be retained in place on both square and
rotary buff machines without the use of supplemental securing
means. After the devices have become saturated with dirt, they may
also readily be washed and wrung out on the job as required.
* * * * *