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Патент USA US3060483

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SCOURING DEVICE
Filed Aug. 22, 1961
I
INVENTOR.
Lou/5 J. 51L VER
BY
00%, lr/MA m
ATTY'.
United States Patent O?tice
3,050,478
Patented Oct. 30, 1962
2
1
The ‘securing device 8 is a novel feature of the inven
tion. It includes an enlarged circular base member 20
3,060,478
SCOURING DEVICE
Louis J. Silver, 3434 Baker St., San Francisco, (Ialif.
having an upwardly projecting tubular casing 21. A
locking member 22 has an enlarged head 23 generally
Filed Aug. 22, 1.961, Ser. No. 133,088
5 Claims. (Cl. 15-209)
rectangular as seen in horizontal cross-section, and 'a
stem 24 which extends down into the casing 21 and has
an enlarged end 25. The casing 21 is closed over the
This invention relates to an improved scouring device.
stem 24 to a size smaller than that of the end 25, so that
There have previously been scouring devices in which
the member 8 cannot come apart. A spring 26 is posi~
a scouring pad is held by a handle. However, hereto
fore the scouring pad has been secured to the handle 10 tioned between the end 25 and the closure at the upper
end of the casing 21 for keeping the stem 24 in a posi
by a nut-and-bolt type of ‘arrangement. This meant that
tion where it can easily turn. The head 23 has a bot
the nut had to be removed from the bolt each time the
tom edge or shoulder 28.
pad was to be removed, inserted, or changed, and the
In assembly, the head 23 and base 20 are inserted up
loose parts tended to get lost. Moreover, the scouring
pad could rotate relatively to the handle during the scour 15 wardly through the eyelet 18, with the base 20 abutting
the bottom of the eyelet 18 and a portion of the pad
ing operation and such revolving interfered with the e?i
7 around it. Then the rectangular head 23 is pushed
ciency of the device. It was sometimes argued that this
up through the holder slot 13 until the head 23 is above
revolving distributed the wear, but studies show that there
the surface 16; then the head 23 is turned 90° and is
is little advantage and that the inconveniences during use
held locked by the upwardly-projecting members 17. The
more than counterbalance the advantage. Moreover, it
head 23 is then perpendicular to the axis of the slot
would have no advantage over readjusting the pad ex
13; so it cannot come out. The very act of insertion
cept for the inconvenience of taking off and putting to
involves a spring action of the pad 7 itself, which tends
gether the nut and bolt assembly.
.
to pull the fastener member 8 down through the hole
The present invention provides an improved scourin
device in which the pad is easily installed, replaced, or 25 13, and this force therefore holds the lower edge 28
against the upper surface 16 in between the safety locks
reversed. It incorporates a unitary holding member
17. During insertion, the projecting members 11 in the
which does not come apart from itself and‘ which forms
lower surface of the cup 10‘ engage and dig into the
a single unit holding the scouring pad into the handle.
scouring pad 7, holding it against movement. Yet,
The handle is provided with special projections which
engage the pad and hold it in place against rotation, 30 neither these projections 11 nor the base 20 of the fas
tener 8 are in a position where they can interfere with
and the holding device for the securing pad is held locked
the scouring action or can scratch the article being
in its closed position by other projections that are part
scoured. All the scouring is done by the pad 7.
of the handle. This invention thus holds the pad against
To change a pad 7 or to remove it, one simply gives
rotation while enabling quick change of pads. It enables
the user to get the most out of the purchased product. 35 the head 23‘ a 90° turn, pulling it over the members 17
and then it will be pulled through the slot 13 by the re
Other objects ‘and advantages of the invention will
silient ‘action of the pad 7 itself. It can be taken apart
appear from the following description of a preferred
and another pad 7 inserted within a few seconds.
embodiment.
To those skilled in the art to which this invention re
In the drawings:
FIG. 1 is a view in perspective of a scouring device 40 lates, many changes in construction and widely differ
embodying the principles of the present invention.
A
portion has been broken away to show the way in which
projections on the holder lock into the scouring pad to
ing embodiments and applications of the invention will
suggest themselves without departing from the spirit and
scope of the invention. The disclosures and the descrip
tion herein are purely illustrative and are not intended
prevent relative rotation.
FIG. 2 is an enlarged fragmentary top-plan view of a 45 to be in any sense limiting.
I claim:
portion of the device showing how the fastening device
1. A scouring device including in combination a
is secured to the handle.
scouring pad of generally circular con?guration having
FIG. 3 is a fragmentary view in elevation and partly
in its center ‘an elongated eyelet; a holding member hav
in section of the device of FIG. 1.
FIG. 4 is a fragmentary view of the device, with the 50 ing a cup which has a lower concave surface adapted to
receive a central portion of said scouring pad and to
handle broken off to conserve space and the pad shown
cup it upwardly with the eyelet out of contact with a
partly in section.
surface to be scrubbed, said cup having a plurality of
A scouring device 5 of this invention, as shown in the
drawings, comprises a holding member 6, a scouring pad
slender projections that extend into said pad and pre
7, and a novel securing device 8 that locks the pad 7
and holding member 6 together. The holding member
6 is molded in a single piece of plastic ‘and is provided
vent it from rotating in said cup, said cup also having an
with a handle 9 and with a bell- or cup-like pad sup
elongated slot therethrough; and a unitary fastening
member having a base plate adapted to rest below said
eyelet, a tubular stem extending up from said base plate
through said eyelet and slot, a locking member having
port member 10. The lower surface of the member 10
is provided with a plurality of slender projections 11 60 a portion in said stem rotatable therein and a head por
tion adapted to engage the upper surface of said cup, and
which extend down into the pad 7 and help to hold it
spring means urging said locking member toward said
against rotation. In the center of the cup 10‘ there is -a
base plate.
?at portion 12 having a rectangular slot 13 with a circu
2. The device of claim 1, wherein said cup has a
lar central enlarged portion 14. The lower surface 15
of the portion 12 is recessed upwardly, while its generally 65 ?at upper portion engaged by said head portion and hav
ing two pairs of retainer members for normally locking
flat upper surface 16 is provided with two pairs of re
said locking member perpendicular to said slot.
tainer members 17, integral parts of the cup 10‘ that pro
3. In a scouring device comprising a scouring pad
ject up from the surface 16.
having an elongated central eyelet and a holding member
The scouring pad 7 is a circular pad of metal, plastic,
or other scouring material, with an oval eyelet 18, which 70 having a handle and a bell-like support member for said
pad with an elongated slot, the combination therewith
acts to clamp the pad together and to hold its elements
of a unitary removable fastener having an enlarged base
and also to receive the device 8.
3,060,478
3
for ?tting beneath said eyelet, a tubular column extend
ing up from said base to extend ‘through said eyelet and
slot, a locking member having a lower end rotatable in
said column and a head adapted to engage the upper
4
long narrow eyelet; a holding member having a cup
which has a lower concave surface adapted to receive a
central portion of said scouring pad and to cup it up
surface of said bell-like support member, and a spring
in said column having an upper end bearing against an
wardly with the eyelet out of contact with a surface to
be scrubbed, said cup having an elongated slot there
through; and a unitary fastening member having a base
upper portion of said column and a lower portion bear
plate adapted to rest below said eyelet, a tubular stem
ing against said locking member to urge the lower end
extending up from said base plate through said eyelet
thereof down toward said base member.
and slot and having a restricted upper end, a locking
4. For use in a scouring device having a scouring pad 10 member having a lower portion inside said stem and
with an elongated central eyelet and a holding member
rotatable therein and a head portion above said stem
with a handle and a bell-like pad-support member hav
adapted to engage the upper surface of said cup, and a
ing an elongated slot, a unitary removable fastener hav
spring compressed between said lower portion of said
ing an enlarged base adapted to ?t beneath said eyelet,
locking member and the upper end of said stern, for
a tubular column extending up from said base, adapted 15 urging said locking member downwardly.
to extend through said eyelet and slot, and having a re
stricted upper end, a locking member having an enlarged
References Cited in the ?le of this patent
lower end portion rotatable in said column and a head
UNITED STATES PATENTS
adapted to engage the upper surface of said bell-like
support member, and a spring in said column having 20
an upper end bearing against the restricted upper end
of said column and a lower portion bearing against the
upper end of said lower end portion to urge said lower
end portion down toward said base member.
5. A scouring device, comprising a scouring pad of 25
generally circular con?guration having in its center a
1,412,097
1,984,990
2,493,835
2,995,765
Weirner _____________ __ Apr.
Reinernan ____________ .._ Dec.
Schimel _____________ __ Jan.
Ballato et ‘a1. _________ __ Aug.
11,
18,
10,
15,
1922
1934
1950
1961
FOREIGN PATENTS
728,335
Great Britain ________ .... Apr. 20, 1955
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