US3355844A - Universal sponge mop head - Google Patents

Universal sponge mop head Download PDF

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Publication number
US3355844A
US3355844A US622128A US62212867A US3355844A US 3355844 A US3355844 A US 3355844A US 622128 A US622128 A US 622128A US 62212867 A US62212867 A US 62212867A US 3355844 A US3355844 A US 3355844A
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Prior art keywords
base plate
sponge
mop
mop head
sides
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US622128A
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Roger L Abler
John R Anderson
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3M Co
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Minnesota Mining and Manufacturing Co
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/20—Mops
    • A47L13/24—Frames for mops; Mop heads
    • A47L13/254—Plate frames
    • A47L13/257—Plate frames for mops made of sponge material

Definitions

  • a sponge mop head is adapted for attachment on the mounting plate of a mop frame having either screw or slide attachment means.
  • the sponge is adhered to a sheet metal or similar base plate which can be either left intact for screw attachment or broken to permit longitudinal compression of the sponge for slide attachment.
  • This invention relates to brushing, scrubbing, and cleaning implements, particularly to sponge mops.
  • Sponge mops have been Widely used by housewives for many years. Basically these mops involve a synthetic sponge, typically a block of regenerated cellulose, having a base plate attached to the upper surface and provided with means for attachment to the mounting plate on a mop frame.
  • a synthetic sponge typically a block of regenerated cellulose
  • the first type a one-piece rigid metal base plate was adhered to the upper face of the sponge body and provided with a plurality of holes.
  • the corresponding mounting plate on the mop frame was provided with either holes or longitudinally extending slots which coincided with the holes on the base plate. Screws were then used to attach the mounting plate to the base plate, slots providing a means for permitting expansion or contraction of the sponge as it absorbed or released moisture.
  • Exemplary mop heads of this type are illustrated in U.S. Patents 2,594,553 and 2,663,042.
  • the second major type of sponge mop construction is effectively illustrated in U.S. Patent 3,188,676.
  • a small metal plate is mounted adjacent each end on the upper face of the sponge body, the two plates being separated by a substantial distance.
  • Each plate bears a slide means having a cross-section designed for engaging tabs which are struck from one face of the mounting plate on the mop frame. Spacing the slide-bearing plates apart not only permits the sponge to expand and contract, the cooperative slide means moving longitudinally along the tabs, but also permits longitudinally compressing the sponge so that the slides can be positioned between the tabs and then moved outward to grip them firmly. Although this arrangement is convenient in many respects, the sponge mop sometimes contracts so much when not in use that the head becomes disengaged from the slides and falls off, to the extreme annoyance of the housewife.
  • the present invention provides a novel sponge mop 3,355,844 Patented Dec. 5, 1967 head which is effective for installation on any of the major types of mounting frames presently in use, and is specifically adapted for attachment to both of the types discussed hereinabove.
  • the invention provides a sponge mop in which a continuous elongated base plate is attached to the sponge body over the greater portion of its length, thus providing resistance to bowing, distortion, and chattering in use, as well as minimizing any tendency for the mop head to fall off a mounting plate of the slide type when the sponge dries out.
  • the novel mop head is readily attachable to any mounting plate employing screws or similar means of attachment.
  • this mop head has slide means mounted adjacent each end of the rigid base plate, corresponding to the mating tabs found on the mounting plate of the other common type of mop head.
  • the continuity of the base plate prevents attachment of both slide means to the complementary pair of tabs found on a mounting plate.
  • the base plate is so constructed that it can be separated at its mid-point and one plate portion slid over the other far enough to permit the slide means to fit between the pair of tabs on mounting plates of this type.
  • the novel construction of this device is such that a drying mop head, can not shrink sufficiently to become detached from the tabs. Further, even after the base plate has been separated into two pieces and installed in the manner and for the purpose just indicated, the mop head can still be removed and screwed to a mop frame of a different construction without sacrificing quality of performance.
  • FIGURE 1 is a view in perspective of a presently preferred embodiment of the invention
  • FIGURE 2 is a longitudinal cross-sectional view of the mop head shown in FIGURE 1, taken along sectional line 2-2 and looking in the direction of the arrows;
  • FIGURE 3 is a rear elevational view of the mop head shown in FIGURE 1, illustrating the manner in which the mop head is manipulated to facilitate installation on a mop frame mounting plate having tabs on one surface thereof.
  • prismatic sponge body 11 is secured to one face of low density fibrous lofty abrasive mat 12.
  • base plate 13 is adhered to the upper face of sponge body 11 by adhesive layer 15 throughout their coextensive areas, except for adhesive-free area 16, which extends from break line 14 under right half 13b, across the entire width thereof, for a short distance.
  • the attachment of base plate 13 and sponge body 11 throughout most of their coextensive length provides firm connection of sponge body 11 to the mop frame and minimizes any tendency of sponge body 11 to bow in'the central portion during use. Bowing is further minimized by lip 17, which extends substantially at right angles to base plate 13, overlying the rear face of sponge body 11 and tending to hold it in fixed position.
  • pairs of depressed holes 18a and 18b, 19a and 19b, 20a and 20b. These holes are adapted to receive self-tapping screws which are inserted through corresponding holes or slots in the mounting plate on the mop frame.
  • slide means 21a and 21b are also located on base plate 13 adjacent the ends thereof, slide means 21a and 21b, each of which defines, in
  • Lowidensit'y abrasive product 12 .a suitable form of which is described and claimed in US. Patent 2,958,593, m b a hered t th pon by any u t b n
  • a particularly satisfactory technique is to embed it in one face of a sponge-forming cellulosic massto a depth su ftieiently to ilet the mass partially surround fibers in the interface, regenerate the cellulose, and convert the mass to spongeforrn, all as describedand, claimed in US.
  • a ality of attaching means on said base plate "a'daptedfor cbnnectionto corresponding means on a plurality of different mopframe mounting plates, t r V saidbaseplate having a weakened portion, extendnabe wem i s sides approximately m y f tween it's ends, along which said baseplate may be brgken into two substantially equi-din'iens a a rs t and a a prismatic sponge body'having two ends and a plurality of sides, v p A atnleast oneof said sides being both longer and jnt ide tha a d in t a,
  • said one, side being adhered'to one face of said "base plate substantially'throughout their 'eoexensive arfeas except,for"'an adhesive free portionv of said areas, said portion beingabout'o'ne inch long" and the entire width ofsaid base' pla'te iuehdin "from said weakened portiombeneath one of said substantially equi-dirnensiorialparts ofsziid base pla'te.
  • the attaching means on the base plate include a pair of slide members having a C-shaped crosssection, located adjacent the ends of said base plate and adapted, when said base plate is broken in two along its weakened portion, to cooperatively slidably engage tabs extending below the surface of a mop frame mounting plate,
  • the mop head of claim 2 wherein the base plate has a lip extending downward from one side thereof and is so dimensioned and positioned on said one side of the prismatic sponge body that said lip extends over the adjacent side of said sponge body.
  • the mop head of claim 4 wherein the sponge body has four sides, the side opposite that over which the base plate lip extends having a lofty nonwoven fibrous low density abrasive-mat amxedt her'eto.
  • a sponge mop head of the type wherein one face of a synthetic sponge is adhered to'a rigid elongate base plate extending over a major portion of said face, said base plate being provided with holes for attachment to a first type of conventional mop frame mounting plate,
  • said mop head can eitherb e directly attached with screws to a mounting plate-of said firsttype, or attachedto a conventional mounting plate of said second type by breaking saidba'se platealong said-break line,

Description

Dec. 5,1967 R.| .AE$LER AL UNIVERSAL SPONGE MOP HEAD Filed March 10, 1967 N m m? NAP/0W W55 WADW/ p. WM 5 United States Patent M 3,355,844 .UNIVERSAL SPONGE MOP HEAD Roger L. Abler, White Bear Lake, and John R. Anderson, Maplewood, Minn., assignors to Minnesota Mining and Manufacturing Company, St. Paul, Minn., a corporation of Delaware Filed Mar. 10, 1967, Ser. No. 622,128 7 Claims. (Cl. 51-400) ABSTRACT OF THE DISCLOSURE A sponge mop head is adapted for attachment on the mounting plate of a mop frame having either screw or slide attachment means. The sponge is adhered to a sheet metal or similar base plate which can be either left intact for screw attachment or broken to permit longitudinal compression of the sponge for slide attachment.
Background of the invention This invention relates to brushing, scrubbing, and cleaning implements, particularly to sponge mops.
Sponge mops have been Widely used by housewives for many years. Basically these mops involve a synthetic sponge, typically a block of regenerated cellulose, having a base plate attached to the upper surface and provided with means for attachment to the mounting plate on a mop frame. Heretofore there have been two main types of construction, which to a large extent have been mutual- 1y exclusive. In the first type, a one-piece rigid metal base plate was adhered to the upper face of the sponge body and provided with a plurality of holes. The corresponding mounting plate on the mop frame was provided with either holes or longitudinally extending slots which coincided with the holes on the base plate. Screws were then used to attach the mounting plate to the base plate, slots providing a means for permitting expansion or contraction of the sponge as it absorbed or released moisture. Exemplary mop heads of this type are illustrated in U.S. Patents 2,594,553 and 2,663,042.
The second major type of sponge mop construction is effectively illustrated in U.S. Patent 3,188,676. A small metal plate is mounted adjacent each end on the upper face of the sponge body, the two plates being separated by a substantial distance. Each plate bears a slide means having a cross-section designed for engaging tabs which are struck from one face of the mounting plate on the mop frame. Spacing the slide-bearing plates apart not only permits the sponge to expand and contract, the cooperative slide means moving longitudinally along the tabs, but also permits longitudinally compressing the sponge so that the slides can be positioned between the tabs and then moved outward to grip them firmly. Although this arrangement is convenient in many respects, the sponge mop sometimes contracts so much when not in use that the head becomes disengaged from the slides and falls off, to the extreme annoyance of the housewife.
The aforementioned U.S. Patent 3,188,676 suggests that the two separated slide-carrying plates may be provided with holes, to permit mounting on mop frames of the type first referred to hereinabove. Although this is theoretically possible, the resulting product is not totally satisfactory for either purpose. Since the greater portion of the sponge body is not connected to any rigid support, the mop tends to bow, distort, chatter, and provide irregular cleaning action, no matter what type of mounting plate the mop frame has.
Summary of the invention The present invention provides a novel sponge mop 3,355,844 Patented Dec. 5, 1967 head which is effective for installation on any of the major types of mounting frames presently in use, and is specifically adapted for attachment to both of the types discussed hereinabove. The invention provides a sponge mop in which a continuous elongated base plate is attached to the sponge body over the greater portion of its length, thus providing resistance to bowing, distortion, and chattering in use, as well as minimizing any tendency for the mop head to fall off a mounting plate of the slide type when the sponge dries out. The novel mop head is readily attachable to any mounting plate employing screws or similar means of attachment. At the same time, this mop head has slide means mounted adjacent each end of the rigid base plate, corresponding to the mating tabs found on the mounting plate of the other common type of mop head.
As originally supplied, the continuity of the base plate prevents attachment of both slide means to the complementary pair of tabs found on a mounting plate. The base plate, however, is so constructed that it can be separated at its mid-point and one plate portion slid over the other far enough to permit the slide means to fit between the pair of tabs on mounting plates of this type. At the same time, the novel construction of this device is such that a drying mop head, can not shrink sufficiently to become detached from the tabs. Further, even after the base plate has been separated into two pieces and installed in the manner and for the purpose just indicated, the mop head can still be removed and screwed to a mop frame of a different construction without sacrificing quality of performance.
Brief description of the drawing The invention will be better understood with reference to the acompanying drawing in which:
FIGURE 1 is a view in perspective of a presently preferred embodiment of the invention;
FIGURE 2 is a longitudinal cross-sectional view of the mop head shown in FIGURE 1, taken along sectional line 2-2 and looking in the direction of the arrows; and
FIGURE 3 is a rear elevational view of the mop head shown in FIGURE 1, illustrating the manner in which the mop head is manipulated to facilitate installation on a mop frame mounting plate having tabs on one surface thereof.
Description of preferred embodiment In the drawings, prismatic sponge body 11 is secured to one face of low density fibrous lofty abrasive mat 12. To the upper face of sponge body 11 is adhered base plate 13, divided into left portion 13a and right portion 13b by a weakened portion, or break line 14. Base plate 13 is secured to the upper face of sponge body 11 by adhesive layer 15 throughout their coextensive areas, except for adhesive-free area 16, which extends from break line 14 under right half 13b, across the entire width thereof, for a short distance. The attachment of base plate 13 and sponge body 11 throughout most of their coextensive length provides firm connection of sponge body 11 to the mop frame and minimizes any tendency of sponge body 11 to bow in'the central portion during use. Bowing is further minimized by lip 17, which extends substantially at right angles to base plate 13, overlying the rear face of sponge body 11 and tending to hold it in fixed position.
At spaced locations equidistant from break line 14 are pairs of depressed holes, 18a and 18b, 19a and 19b, 20a and 20b. These holes are adapted to receive self-tapping screws which are inserted through corresponding holes or slots in the mounting plate on the mop frame.
Also located on base plate 13 adjacent the ends thereof are slide means 21a and 21b, each of which defines, in
cross-section a C-shaped channel corresponding to the tab on a mounting plate of a different type of mop frame. When the mop head is to be installed on the mounting plate of afra'me, of this type, it is gripped firm ly and bent back and forth along brealc line 14, thereby separating base plate 13 into halves 13. and 13b. In order to facilitate, separation of plate 13 along break line 14, lip- 1 7 is notchedin the immediately adjoining area. Since there is noadhesiveinarea lfi, plate half 1312 is readily lifted above and slid pver plate half 1.311.111 order to facilitate installation but nevertheless maintain the maximum resist ance, fobowirrg, it is desirable that adhesivere a ea 16 xt d lns wd al a d anc a mating but notgreatly exceeding the length of slide means 21a or 21 b,typically abou'tan inch As is shown particularlydn FIGURE}, the sliding plate half lSb or plate half ,15a longitudinally compresses sponge body 11, permitting slidemeans 21a and 21b to iit between the doivnwardly extending tabs on a mop frame mounting plate (indicated in dashed linesh when plate halves 13a and 13b are returned t otheir original position slide means 21;; and 21b engage the corresponding pair of tab means.
Lowidensit'y abrasive product 12, .a suitable form of which is described and claimed in US. Patent 2,958,593, m b a hered t th pon by any u t b n A particularly satisfactory technique is to embed it in one face of a sponge-forming cellulosic massto a depth su ftieiently to ilet the mass partially surround fibers in the interface, regenerate the cellulose, and convert the mass to spongeforrn, all as describedand, claimed in US. rars rs pso ssans Show i l FIGURE 1, it may be desirableto havethe low density abrasive 12 extend less t "n the full depth of sponge body 11, thereby keeping it normally out of'contact with the floor when the lower surface of sponge body 11 is being used. When it is desired to subject the floor to more rigorous cleaning akiti'omth'e in'opheadmay'be'turned s'o'that' its front face, and therewith low derisityab'ra'sive pad 12, is lowermost. To minimize the possibility of iiiidersirable -scraping of thefloorduring such'operationtheforward edge of base plate 13 should notext'e'rid completely to'th'e forward face 'pldtefcomprisi'rig in combination:
a"thin'rigid"elorigate base plate'liaving two sides'a'nd two ends,
a ality of attaching means on said base plate "a'daptedfor cbnnectionto corresponding means on a plurality of different mopframe mounting plates, t r V saidbaseplate having a weakened portion, extendnabe wem i s sides approximately m y f tween it's ends, along which said baseplate may be brgken into two substantially equi-din'iens a a rs t and a a prismatic sponge body'having two ends and a plurality of sides, v p A atnleast oneof said sides being both longer and jnt ide tha a d in t a,
said one, side being adhered'to one face of said "base plate substantially'throughout their 'eoexensive arfeas except,for"'an adhesive free portionv of said areas, said portion beingabout'o'ne inch long" and the entire width ofsaid base' pla'te iuehdin "from said weakened portiombeneath one of said substantially equi-dirnensiorialparts ofsziid base pla'te.
2. The mop head of claim 1 wherein the attaching means on the base plate include a pair of slide members having a C-shaped crosssection, located adjacent the ends of said base plate and adapted, when said base plate is broken in two along its weakened portion, to cooperatively slidably engage tabs extending below the surface of a mop frame mounting plate,
and a plurality of holes, located on opposite sides of the weakened center portion of the base plate, adapted to receive self-tapping screws extending through the correspondingly positioned holes on a mop frame mounting plate.
3. The mop head of claim 2 wherein the base plate has a lip extending downward from one side thereof and is so dimensioned and positioned on said one side of the prismatic sponge body that said lip extends over the adjacent side of said sponge body.
4. The mop head of claim 3 wherein the lip is notched at the portion immediately adjoining the weakened portion of the base plate.
5. The mop head of claim 4 wherein the sponge body has four sides, the side opposite that over which the base plate lip extends having a lofty nonwoven fibrous low density abrasive-mat amxedt her'eto.
6. The mop head'of claim 5 whereinthe low density abrasive mat terminates short of the lower edge'of the side to which it is affixed. I
'7. In a sponge mop head "of the type wherein one face of a synthetic sponge is adhered to'a rigid elongate base plate extending over a major portion of said face, said base plate being provided with holes for attachment to a first type of conventional mop frame mounting plate,
the improvement which comprises: I
providing a generally centrally locatedbreak line extending across said base plate, I providing, adjacent each end of said base plate, an elongate slide means of appropriate dimensions and position to slidably engage, in'a direction parallel to the length of said baseplate, one of a spaced-pair of complementary downturned tab means on a second type of conventional mounting plate, itnormally being impossible to simultaneously engage both of saidslide means with both of s'aidtab means,
and adhering said base plate to said sponge face throughout their coextensive areas except for a portion adjoining one side of said break line acrossthe entire width of said base plate for a distanceapproximately equal to the length of one of said slide whereby said mop head can eitherb e directly attached with screws to a mounting plate-of said firsttype, or attachedto a conventional mounting plate of said second type by breaking saidba'se platealong said-break line,
sliding'the unadhered portion or one half of said base plate over the other half "or said base plate to longitiudinallyg compress the sponge and-permit positioning the pair of slide means on' said base plate between theopair of tab means on 'a' mountin plate of said second'type,
'aid then sliding the pair of slide means apart, "thereby engaging each slide 'rneans witha'corresp'onding tab 'DANIELTBLUM, PfintaryEfibafiriiigr,

Claims (1)

1. A SPONGE MOP HEAD, DESIGNED FOR INSTALLATION ON A WIDE VARIETY OF SPONGE MOP FRAMES HAVING A MOUNTING PLATE, COMPRISING IN COMBINATION: A THIN RIGID ELONGATE BASE PLATE HAVING TWO SIDES AND TWO ENDS, A PLURALITY OF ATTACHING MEANS ON SAID BASE PLATE ADAPTED FOR CONNECTION TO CORRESPONDING MEANS ON A PLURALITY OF DIFFERENT MOP FRAME MOUNTING PLATES, SAID BASE PLATE HAVING A WEAKENED PORTION, EXTENDING BETWEEN ITS SIDES APPROXIMATELY MIDWAY BETWEEN ITS ENDS, ALONG WHICH SAID BASE PLATE MAY BE BROKEN INTO TWO SUBSTANTIALLY EQUI-DIMENSIONAL PARTS, AND A PRISMATIC SPONGE BODY HAVING TWO ENDS AND A PLURALITY OF SIDES, AT LEAST ONE OF SAID SIDES BEING BOTH LONGER THAN WIDER THAN SAID BASE PLATE, SAID ONE SIDE BEING ADHERED TO ONE FACE OF SAID BASE PLATE SUBSTANTIALLY THROUGHOUT THEIR COEXTENSIVE AREAS EXCEPT FOR AN ADHESIVE-FREE PORTION OF SAID AREAS, SAID PORTION BEING ABOUT ONE INCH LONG AND THE ENTIRE WIDTH OF SAID BASE PLATE EXTENDING FROM SAID WEAKENED PORTION BENEATH ONE OF SAID SUBSTANTIALLY EQUI-DIMENSIONAL PARTS OF SAID BASE PLATE.
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412416A (en) * 1967-07-31 1968-11-26 Minnesota Mining & Mfg Sponge mophead and attaching clips
US3484888A (en) * 1968-04-22 1969-12-23 Mack C Davis Combined floor wiper and scourer apparatus
US3629896A (en) * 1970-03-23 1971-12-28 Michael Sirnec Combined washing, drying, scrubbing and scraping implement
US3638270A (en) * 1969-10-22 1972-02-01 Norman C Schlegel Jr Monofilament pile cleaning tool
US4004376A (en) * 1974-12-30 1977-01-25 Monsanto Company Kitchen ware cleaning device
US4077672A (en) * 1976-09-27 1978-03-07 Tantera, Inc. Method of making a sponge mop part
EP0632991A1 (en) * 1993-06-29 1995-01-11 FINANCIERE ELYSEES BALZAC Société Anonyme Sponge mop
DE29502602U1 (en) * 1995-02-17 1995-04-06 Coronet Werke Gmbh Cleaning device
US20070192978A1 (en) * 2004-11-17 2007-08-23 Robert Michelson Disposable liquid absorbing cleaning pad for a hand held cleaning implement having an elongated handle
US20110023251A1 (en) * 2007-04-03 2011-02-03 Johnsondiversey, Inc. Mop head fixation device and method
US8087121B1 (en) 2004-11-17 2012-01-03 Butler Home Products, Llc Mop
USD719712S1 (en) 2012-09-07 2014-12-16 Diversey, Inc. Floor maintenance tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287756A (en) * 1965-10-24 1966-11-29 Frank A Gesell Flexible sponge mop head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287756A (en) * 1965-10-24 1966-11-29 Frank A Gesell Flexible sponge mop head

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412416A (en) * 1967-07-31 1968-11-26 Minnesota Mining & Mfg Sponge mophead and attaching clips
US3484888A (en) * 1968-04-22 1969-12-23 Mack C Davis Combined floor wiper and scourer apparatus
US3638270A (en) * 1969-10-22 1972-02-01 Norman C Schlegel Jr Monofilament pile cleaning tool
US3629896A (en) * 1970-03-23 1971-12-28 Michael Sirnec Combined washing, drying, scrubbing and scraping implement
US4004376A (en) * 1974-12-30 1977-01-25 Monsanto Company Kitchen ware cleaning device
US4077672A (en) * 1976-09-27 1978-03-07 Tantera, Inc. Method of making a sponge mop part
US5483720A (en) * 1993-06-29 1996-01-16 Financiere Elysees Balzac Sponge mop
EP0632991A1 (en) * 1993-06-29 1995-01-11 FINANCIERE ELYSEES BALZAC Société Anonyme Sponge mop
FR2707859A1 (en) * 1993-06-29 1995-01-27 Elysees Balzac Financiere Mop.
DE29502602U1 (en) * 1995-02-17 1995-04-06 Coronet Werke Gmbh Cleaning device
US20070192978A1 (en) * 2004-11-17 2007-08-23 Robert Michelson Disposable liquid absorbing cleaning pad for a hand held cleaning implement having an elongated handle
US8079112B2 (en) 2004-11-17 2011-12-20 Butler Home Products, Llc Disposable liquid absorbing cleaning pad for a hand held cleaning implement having an elongated handle
US8087121B1 (en) 2004-11-17 2012-01-03 Butler Home Products, Llc Mop
US8341795B2 (en) 2004-11-17 2013-01-01 Butler Home Products Llc Mop
US8607400B2 (en) 2004-11-17 2013-12-17 Butler Home Products, Llc Disposable liquid absorbing cleaning pad for a hand held cleaning implement having an elongated handle
US20110023251A1 (en) * 2007-04-03 2011-02-03 Johnsondiversey, Inc. Mop head fixation device and method
US8464391B2 (en) 2007-04-03 2013-06-18 Diversey, Inc. Mop head fixation device and method
US8959699B2 (en) 2007-04-03 2015-02-24 Diversey, Inc. Mop head fixation device and method
USD719712S1 (en) 2012-09-07 2014-12-16 Diversey, Inc. Floor maintenance tool

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