US3605347A - Floor scrubbing brush - Google Patents

Floor scrubbing brush Download PDF

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Publication number
US3605347A
US3605347A US3605347DA US3605347A US 3605347 A US3605347 A US 3605347A US 3605347D A US3605347D A US 3605347DA US 3605347 A US3605347 A US 3605347A
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United States
Prior art keywords
bristles
brush
floor
backboard
percent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Robert M Barry
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MULTI CLEAN PRODUCTS Inc
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MULTI CLEAN PRODUCTS Inc
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Publication date
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Priority to US2331870A priority Critical
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Publication of US3605347A publication Critical patent/US3605347A/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036Parts or details of the surface treating tools
    • A47L11/4038Disk shaped surface treating tools
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D1/00Bristles; Selection of materials for bristles
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02Floor surfacing or polishing machines
    • A47L11/10Floor surfacing or polishing machines motor-driven
    • A47L11/14Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A47L11/164Parts or details of the brushing tools

Abstract

A BRUSH FOR USE IN ROTARY TYPE FLOOR SCRUBBING MACHING COMPRISING A FLAT BACKBOARD HAVING BRISTLES IMPREGNATED WITH AN ABRASIVE MATERIAL ATTACHED TO THE BACKBOARD AND EXTENDING THEREFROM AT RANDOM LENGTHS WITH THE MAJORITY VARYING IN THE RANGE OF 10 PERCENT TO 25 PERCENT FROM THE MEDIAN LENGTH.

Description

p 20, 1971 R. M. BARRY 3,605,347
FLOOR SCRUBBING BRUSH I Filed March 27. 1970 FIE; z
ml i /%/////////////%///////////l/ w W 5 KW 3x; g
' INVISN'I ()k ROBERT M 84KB) FI 3 I I 4 rraknwys United States Patent Ofice Patented Sept. 20, 1971 3,605,347 FLOOR SCRUBBING BRUSH Robert M. Barry, St. Paul, Minn'., assignor to Multi-Clean Products Incorporated, St. Paul, Minn.
Filed Mar. 27, 1970, Ser. No. 23,318 Int. Cl. B24b 23/02 US. Cl. 51-330 4 Claims ABSTRACT OF THE DISCLOSURE A brush for use in a rotary type floor scrubbing machine comprising a flat backboard having bristles impregnated with an abrasive material attached to the backboard and extending therefrom at randomlengths with the majority varying in the range of percent to 25 percent from the median length.
BACKGROUND OF THE INVENTION In rotary type floor scrubbing machines a flat brush is rotated about a vertical axis as the machine is moved over the floor surface. The brush has a flat horizontally disposed backboard with bristles extending downwardly therefrom. In conventional construction of the brush the backboard is provided with downwardly opening pockets spaced uniformly over its under side. Strands of the bristle material are bunched and stapled medially into each of said pockets so that each end of'the strand serves as a separate bristle. Where the strands in each bunch are of equal length those at the bottom of the bunch or closest to the staple will obviously project slightly farther from the backboard than those near the top and thus form longer bristles. It is accordingly the general practice to trim the bristles to an equal length after they have been attached to the board.
In recent advancements in the manufacture of brushes of this type it has been found desirable to impregnate or coat the bristles with an abrasive grit to increase the scrubbing action thereof. This material renders the bristle extremely difiicult to trim and yet it must be applied to the bristle before it is inserted into the backboard.
SUMMARY OF THE INVENTION It is found that bristles coated with abrasive material perform more effectively when the bristles in certain proportions of the overall total have varying lengths within certain prescribed limits.
It is accordingly the object of this invention to provide a floor scrubbing brush which need not be trimmed after assembly and yet which provides improved scrubbing efficiency over conventional rotary brush construction.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a side elevation of a rotary floor scrubbing machine with the brush in scrubbing engagement with the floor surface.
FIG. 2 is an enlarged fragmentary vertical section through the brush showing the manner of attaching the bristles to the backboard of the brush.
FIG. 3 is a side elevation of a portion of the brush constructed in accordance with the present invention with the brush bristle in scrubbing engagement with the floor surface.
,FIG. 4 is a greatly enlarged side view of one of the shorter and one of the longer bristles coated with abrasive material in scrubbing contact with the floor surface.
DETAILED DESCRIPTION Referring now more particularly to the drawing, reference characters will be used to denote like parts or structural features in the different views. A rotary floor scrubbing machine is denoted generally by the number 10 and comprises a base formed by a brush 11 mounted for rotation within a circular shield 12 and having powered connection with a motor mounted on the shield and disposed within housing 14. A handle 15 is connected to the motor housing 14 for moving the base over the floor surface S.
The brush 11 comprises a flat backboard 1-6 having a plurality of downwardly opening pockets 17 (FIG. 2) spaced over the underside thereof and a bunch of bristles 18 secured as by a staple 19 in each pocket. The bristles are formed of strands of material of uniform length. However, as shown in enlarged detail in FIG. 2, they will project varying distances downwardly from the backboard 16. Bristles next to the staple 19 will extend downwardly substantially farther than those held against the upper closed end of the socket 17 and those bristles in between will extend downwardly intermediate distances.
In FIG. 2, the line A denotes the median length of all of the bristles 18. Line B denotes the length of the shortest and line C the length of the longest bristles each varying approximately 25 percent from the median length of all of the bristles. The random length of the bristles is an important feature of this invention and it is found that most effective cleaning action is obtained where at least a majority of the bristles are 10 percent to 25 percent shorter or longer than the median length of all of the bristles. It is also possible to achieve this same result by using random length bristles.
The bristles are preferably formed of nylon strands coated with an abrasive material containing particles of grit '20 (FIG. 4). Accordingly, with the random length of the bristles a substantial portion of the grit embedded in the longer bristles will come into engagement with the floor surface S giving the brush an improved scrubbing action over a trimmed brush having bristles of uniform length.
The brush is also found to be more effective than a trimmed brush in scrubbing irregular floor surfaces as the random length bristles are brought into more intimate contact with clips and rises in the surface.
Another advantage in the brush lies in its ease of manufacture as the trimming process is eliminated saving both labor and machinery. It is found that the grit in abrasive impregnated bristles rapidly wears down trimming tooling.
The brush construction accordingly economically and effectively carries out the objectives hereinabove set forth.
Having now therefore fully illustrated and described my invention, what I claim to be new and desire to protect by United States Letters Patent is,
I claim:
1. A brush for a floor scrubbing machine comprising a flat rigid horizontal backing member, a plurality of bristles attached to said backing member and extending downwardly therefrom, said bristles being impregnated along their sides with an abrasive material and extending in varying lengths from the backing member whereby when said brush is applied to a floor surface the shorter bristles will engage said surface endwise while the longer bristles will be flexed into sidewise engagement therewith to bring the abrasive material into contact with the surface.
2. The subject matter of claim 1 wherein the majority of the bristles are shorter or longer than the median length of all of the bristles.
3. The subject matter of claim 1 wherein the majority of the bristles are 10 percent to 25 percent shorter or longer than the median length of all of the bristles.
4. The subject matter of claim 1 wherein said bristles are formed of strands of nylon material of equal length stapled medially in bunches to the underside of thebacking member so that the higher strands within each bunch 8/1964 Nielsen 15180 3/1970 Coneway 15180X 10 DONALD G. KELLY, Primary Examiner US. Cl, X.R.
US3605347D 1970-03-27 1970-03-27 Floor scrubbing brush Expired - Lifetime US3605347A (en)

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037369A (en) * 1974-10-03 1977-07-26 Murray Robert Campbell Floor maintenance brush
US4133147A (en) * 1977-08-11 1979-01-09 Schlegel Corporation Abrasive brushes and methods of making same
FR2433329A1 (en) * 1978-08-14 1980-03-14 Schar Ernst FLOOR CLEANING APPARATUS
US4305234A (en) * 1980-02-04 1981-12-15 Flo-Pac Corporation Composite brush
US4461127A (en) * 1981-11-19 1984-07-24 The Boeing Company Abrading tool
USRE31745E (en) * 1980-02-04 1984-11-27 Flo-Pac Corporation Composite brush
US4493170A (en) * 1981-11-19 1985-01-15 The Boeing Company Abrading tool
WO1986001461A1 (en) * 1984-08-29 1986-03-13 Acrometal Products, Inc. Abrasive surfacing machine
US4630407A (en) * 1984-05-29 1986-12-23 Rhodes Lynn R Method for finishing a thermoplastic coating
US4646479A (en) * 1981-09-25 1987-03-03 Avco Corporation Deburring method
US4907314A (en) * 1987-06-04 1990-03-13 British Pipeline Agency Ltd., Et Al. Pipeline pig
US5423718A (en) * 1990-01-29 1995-06-13 Jason, Inc. Rotary abrasive tools
US5438728A (en) * 1994-03-18 1995-08-08 Minnesota Mining And Manufacturing Company Rotary brush with segmented fiber sections
US5903951A (en) * 1995-11-16 1999-05-18 Minnesota Mining And Manufacturing Company Molded brush segment
US6439885B2 (en) 2000-03-20 2002-08-27 Steven M. Antler Device for removing tooth stain
US6453912B1 (en) 2000-12-07 2002-09-24 Steven M. Antler Dental floss with abrasives
US6491998B1 (en) * 1995-12-20 2002-12-10 Pathol Limited Wet cleaning cloth
US20070136970A1 (en) * 2005-12-19 2007-06-21 Weiler Corporation Disc brush
US20070272223A1 (en) * 2006-05-24 2007-11-29 Jeffrey Stuckey Method for maintaining a polished concrete floor
US20080060668A1 (en) * 2006-09-11 2008-03-13 Legassie Raymond P Inserted bristle cosmetics brush
US20080160886A1 (en) * 2004-05-21 2008-07-03 Epoxitech, Inc. Abrasive Cleaning Device
US20110048448A1 (en) * 2009-05-06 2011-03-03 Legassie Raymond P Cosmetic Applicator with Disparate Material Application Zones and Backwipe Return
US20130157548A1 (en) * 2004-05-21 2013-06-20 Simon Palushaj Low pressure polishing method and apparatus
CN111331418A (en) * 2020-03-11 2020-06-26 胡红霞 Cleaning device for numerical control machine tool
US10736413B2 (en) 2017-07-31 2020-08-11 L'oreal Systems, devices, and methods of a self-activation use odometer for a skin care brush
US11134771B2 (en) 2019-05-06 2021-10-05 L'oreal Skin care brush systems having cleansing agent-infused elements

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037369A (en) * 1974-10-03 1977-07-26 Murray Robert Campbell Floor maintenance brush
US4133147A (en) * 1977-08-11 1979-01-09 Schlegel Corporation Abrasive brushes and methods of making same
FR2399898A1 (en) * 1977-08-11 1979-03-09 Schlegel Corp ABRASIVE BRUSH AND ITS PRODUCTION PROCESS
FR2433329A1 (en) * 1978-08-14 1980-03-14 Schar Ernst FLOOR CLEANING APPARATUS
USRE31745E (en) * 1980-02-04 1984-11-27 Flo-Pac Corporation Composite brush
US4305234A (en) * 1980-02-04 1981-12-15 Flo-Pac Corporation Composite brush
US4646479A (en) * 1981-09-25 1987-03-03 Avco Corporation Deburring method
US4461127A (en) * 1981-11-19 1984-07-24 The Boeing Company Abrading tool
US4493170A (en) * 1981-11-19 1985-01-15 The Boeing Company Abrading tool
US4630407A (en) * 1984-05-29 1986-12-23 Rhodes Lynn R Method for finishing a thermoplastic coating
WO1986001461A1 (en) * 1984-08-29 1986-03-13 Acrometal Products, Inc. Abrasive surfacing machine
JPS62500226A (en) * 1984-08-29 1987-01-29
US4704823A (en) * 1984-08-29 1987-11-10 Acrometal Products, Inc. Abrasive surfacing machine
JPH0375302B2 (en) * 1984-08-29 1991-11-29
US4907314A (en) * 1987-06-04 1990-03-13 British Pipeline Agency Ltd., Et Al. Pipeline pig
US5423718A (en) * 1990-01-29 1995-06-13 Jason, Inc. Rotary abrasive tools
US5438728A (en) * 1994-03-18 1995-08-08 Minnesota Mining And Manufacturing Company Rotary brush with segmented fiber sections
US5903951A (en) * 1995-11-16 1999-05-18 Minnesota Mining And Manufacturing Company Molded brush segment
US6491998B1 (en) * 1995-12-20 2002-12-10 Pathol Limited Wet cleaning cloth
US6439885B2 (en) 2000-03-20 2002-08-27 Steven M. Antler Device for removing tooth stain
US6453912B1 (en) 2000-12-07 2002-09-24 Steven M. Antler Dental floss with abrasives
US9776305B2 (en) 2004-05-21 2017-10-03 Diamabrush Llc Low pressure polishing method and apparatus
US9492909B2 (en) 2004-05-21 2016-11-15 Diamabrush Llc Low pressure polishing method and apparatus
US9102029B2 (en) * 2004-05-21 2015-08-11 Diamabrush Llc Low pressure polishing method and apparatus
US20080160886A1 (en) * 2004-05-21 2008-07-03 Epoxitech, Inc. Abrasive Cleaning Device
US20130157548A1 (en) * 2004-05-21 2013-06-20 Simon Palushaj Low pressure polishing method and apparatus
US7988539B2 (en) * 2004-05-21 2011-08-02 Epoxi-Tech, Inc. Abrasive cleaning device
US20070136970A1 (en) * 2005-12-19 2007-06-21 Weiler Corporation Disc brush
US20070272223A1 (en) * 2006-05-24 2007-11-29 Jeffrey Stuckey Method for maintaining a polished concrete floor
US20080060668A1 (en) * 2006-09-11 2008-03-13 Legassie Raymond P Inserted bristle cosmetics brush
US20110048448A1 (en) * 2009-05-06 2011-03-03 Legassie Raymond P Cosmetic Applicator with Disparate Material Application Zones and Backwipe Return
US10736413B2 (en) 2017-07-31 2020-08-11 L'oreal Systems, devices, and methods of a self-activation use odometer for a skin care brush
US11134771B2 (en) 2019-05-06 2021-10-05 L'oreal Skin care brush systems having cleansing agent-infused elements
CN111331418A (en) * 2020-03-11 2020-06-26 胡红霞 Cleaning device for numerical control machine tool

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