US2668968A - Meat block scrubber - Google Patents

Meat block scrubber Download PDF

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US2668968A
US2668968A US69276A US6927649A US2668968A US 2668968 A US2668968 A US 2668968A US 69276 A US69276 A US 69276A US 6927649 A US6927649 A US 6927649A US 2668968 A US2668968 A US 2668968A
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brushes
skirt member
scrubber
working faces
skirt
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US69276A
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Joseph M Dobrowolski
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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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • l claimsa Thistinvention: relates to: a machine don-scrap mg; scrubbing or pdlishingsubStantieilly:fiat surfaces and "has nforr an object the. provision -:.of an amimproved 1 device ofrrthat, character.
  • Another 1' object of 'thisdnvention is to provide Fan/improved scraper or ipolisherwhich will? notten d -to f walki :acrosswtheisurface being treated.
  • Another object ofrthis-inventioniisttor provide ar scraper or polisher. of: economicaBandi-durahle construction whileirat' thez-samertimerzhavingathe:
  • a speed reduction gear mechanism including gears'ItQ, 20, 2
  • Gear 23' drives one Ibru'sh of each. gronpsthrough tthc. corresponding' brush gear l1 .and.id1er gears. and, since theithree'ibrushes ofmeachgmhpfare geared together, all brushes. areudrivenhby gear 23 and motor I I.
  • .Atsubstantially rigid apron 25 extends circumferenti'ally around the entire: :b-rush v assembly.
  • Springs 21 are of sufficient strength to support the entire weight of the scraper and, therefore, when the scraper is resting on a surface the rolled portion at of apron 25 will be the only portion of the scraper to touch the surface. However, a light downward. pressure on handles 53 by the operator will overcome springs 21 and will cause brushes It to come into contact with the surface and polish or scape that surface, depending on the nature of the brushes used.
  • annular cup member 39 Connected to the inner surface of apron 25 is an annular cup member 39 arranged to hold the material scraped from the surface being treated.
  • a relatively high speed is intended for brushes It, a speed for example of 1000 R. P. M.
  • particles scraped from the surface being treated will be thrown outwardly by centrifugal force and will lodge in cup member 30.
  • the accumulated particles may, of course, be emptied as desired, merely by tipping the device.
  • this device is particularly well adapted for scraping butcher blocks, and for such use wire brushes are recommended.
  • the device is also well adapted to the polishing of floors and other flat surfaces. In such applications a relatively soft brush should, of course, be used.
  • a butcher block scrubber a plurality of rotatable brushes having their working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical skirt member encircling said brushes and normally extending axially beyond said working faces of said brushes, said skirt member being imperforate along its sides thereby to retain debris thrown against its interior, and spring means urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain the working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizon tal surface.
  • a butcher block scrubber a plurality of rotatable brushes having their working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical skirt member encircling said brushes and normally extending axially beyond said working faces of said brushes, said skirt member being imperforate along its sides thereby to retain debris thrown against its interior, and spring means urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain the working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizontal surface, said skirt member having an inwardly and upwardly turned ledge disposed at the lip of said skirt member and extending substantially completely around the inner surface thereof thereby forming a trough for receiving such debris removed from the surface of a butcher block by said brushes.
  • a butcher block scrubber a frame, a plurality of rotatable brushes supported by said frame and having working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical first skirt member attached to said frame, said first skirt member having a side portion encircling said brushes and normally extending axially beyond said working faces of said brushes, said side portion being imperforate thereby to retain debris thrown against its interior, said first skirt having an upper portion lying above said working faces of said brushes, spring means bearing against said upper portion thereby urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain said working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizontal surface, and a second substantially cylindrical skirt member attached to said frame, said second skirt member having an inside diameter slightly larger than the outside diameter of said first skirt
  • a butcher block scrubber a frame, a plurality of rotatable brushes supported by said frame and having working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said Working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical first skirt member attached to said frame, said skirt member having a side portion encircling said brushes and normally extending axially beyond said working faces of said brushes, said side portion being imperforate thereby to retain debris thrown against its interior, said first skirt including an inwardly extending and upwardly turned ledge disposed at the lip of said side portion and extending substantially completely around the inner surface thereof thereby to form a trough for receiving such debris, said first skirt having an upper portion lying above said working faces of said brushes, spring means bearing against said upper portion thereby urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain said working surfaces of said brushes above the

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  • Brushes (AREA)

Description

Feb. 16, 1954 J. M. DOBROWOLSKI MEAT BLOCK SCRUBBER Filed Jan. 5, 1949 Patented Feb. 16 1954 UNITED s mres A PATEN T OFFICE IMEATJ'BLOCK SIGRUBBER "Jos'eiihM. Dlohizowolski' chicago, Ill.
Amilioaitionfllanuary 5, 1949-, Serial No. 69,276
. l claimsa Thistinvention: relates to: a machine don-scrap mg; scrubbing or pdlishingsubStantieilly:fiat surfaces and "has nforr an object the. provision -:.of an amimproved 1 device ofrrthat, character.
' :Accordin'gato.thisrinventiomia serieszof brushes ar drivensby anxelectric#motor and'aa system-f gears which causei rotationtof adjacentibrusheszin: opposite: directions.
@111 the preferred storm of: 'this :invention ithe brushes a'readivided. into two? groups, .th'e= brushes oil the: individual groups being-:3 geared'itogetner in series relationship, :andra. centraligear meoh ani'sms drives one brush: 0f eachggroup. :Rotation of. iadj acent brushes: inis'opposit :directions substantially: eliminates walking 01: the. -;deviceacross-the"- surfacezbeingztreated.
:An:apron?circumierentially surrounds the entire' brush f assembly candiissarranged toessupport resiliently the remainderrof' theaievice abovethe level of any fiat surface upon which 6118134313011:
may rest. :Howeveneaslightzdownward .nressure hy theoperator williicausevtheibrushes to come into contact with the surface. This (feature-meducesthe: danger of damage-to a -.-surface -being treated in the event that the operator inadvert ently leaves the machine: running? unattended.
Accordingly, another 1' object of 'thisdnvention; is to provide Fan/improved scraper or ipolisherwhich will? notten d -to f walki :acrosswtheisurface being treated.
Another: object of '.-this invention; is to providean improvediscraper or polisher whichmayisa'fely bea-llowedito rest on:arsurfaceheing treate wwhen its= motor is running, withoutrdanger: ofcoontactof the-brushes withthat surface Another object ofrthis-inventioniisttorprovide ar scraper or polisher. of: economicaBandi-durahle construction whileirat' thez-samertimerzhavingathe:
advantages.mentionedabove.
claims.
the drawing: Eig. his. amelevational iview, partiallyrinzcmss section, of: a scraper constructedmaaccordance with this invention'g and Fig- 2 iSfiLbOttOIiIrViBWJOf the scraper-shownin:
Fig. 1.
-A motor- I L is supported 0111-81 housing 12,- havingrapainor handles. 1 3: iorconvenient manipulatiomotttheideviceir-uA semes'offsixrbrushesr-ikare.
located ratcthesbottomQfi-iaha mwm with; their; portionsentendsdownwardlyibeymutthe nlanetci irection-v of rotation-oi adjacent brushes substan tially reduces or eliminates tithe tendencymfit-he. scraper to walk or 1 move under-.iits rowmpoveer across vthei'surfaee beingitreated.
Connected to the motor shaft [8* is a speed reduction gear mechanism including gears'ItQ, 20, 2| and ,22 each gear being-mounted 1 in bearings rigidly fixedntoi housing. L2. i-Thercentrally located gear '22 andg'ear 23 which is directly-connected thereto, are thereby (driven at rasspeedsubstantially lower than that. at the motor shaftltfla. Gear 23' drives one Ibru'sh of each. gronpsthrough tthc. corresponding' brush gear l1 .and.id1er gears. and, since theithree'ibrushes ofmeachgmhpfare geared together, all brushes. areudrivenhby gear 23 and motor I I.
'It will be noted" by observationflofff-Figlj .thatin the particular embodiment shown thelendbrush of one group rotates in the same direction iasslthe adjacent endxbrush of the other group. 7 'glfests have shown" that thisiactor does not,result i n any substantial walking tendency otthedevica. However, if. it is. desired to cause afil'acentbrushes. throughoutthe machine to rotate in oppo'site.;directions; this can be'accomplished throu hseveral obvious equivalents of the embodiment illustrated; For example; an even number'ofbrushes canbe'provi-ded in eachgroup;two groflps-offour brushes each or three'groupsof tWo'bru'shes-each, with idler g-ears connecti-ng' gear'2'3 with *corresponding 'hrushes of each group also; in the embodiment' show-n, one idler" gear it-can *be'rjelocated to drive the central 7 brush of" one "group. These arrangements will result in rotation ai edjacent'brushescin opposite directions throughout the-machine.
.Atsubstantially rigid apron 25: extends circumferenti'ally around the entire: :b-rush v assembly. The: upper portion "2 Bwof. apronc2 521$ resiliently connected: to; housing- Hathrough springs: 21., and sliding:.pinsrfla andnthe;lowerendwfithe apron tenminatesninzarrollediportionx29.; .sfllhise'rolled the working faces of the brushes when spring 21 are in their extended condition.
Springs 21 are of sufficient strength to support the entire weight of the scraper and, therefore, when the scraper is resting on a surface the rolled portion at of apron 25 will be the only portion of the scraper to touch the surface. However, a light downward. pressure on handles 53 by the operator will overcome springs 21 and will cause brushes It to come into contact with the surface and polish or scape that surface, depending on the nature of the brushes used.
Connected to the inner surface of apron 25 is an annular cup member 39 arranged to hold the material scraped from the surface being treated. A relatively high speed is intended for brushes It, a speed for example of 1000 R. P. M. As a result of this high speed, particles scraped from the surface being treated will be thrown outwardly by centrifugal force and will lodge in cup member 30. The accumulated particles may, of course, be emptied as desired, merely by tipping the device.
It has been found that this device is particularly well adapted for scraping butcher blocks, and for such use wire brushes are recommended. However, the device is also well adapted to the polishing of floors and other flat surfaces. In such applications a relatively soft brush should, of course, be used.
While a particular embodiment of the invention has been shown, it will be understood, of course, that the invention is not limited thereto since many modifications may be made, and it is, there fore, contemplated to cover by the appended claims any such modifications as fall within the true spirit and scope of the invention.
I claim:
1. In a butcher block scrubber a plurality of rotatable brushes having their working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical skirt member encircling said brushes and normally extending axially beyond said working faces of said brushes, said skirt member being imperforate along its sides thereby to retain debris thrown against its interior, and spring means urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain the working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizon tal surface.
2. In a butcher block scrubber a plurality of rotatable brushes having their working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical skirt member encircling said brushes and normally extending axially beyond said working faces of said brushes, said skirt member being imperforate along its sides thereby to retain debris thrown against its interior, and spring means urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain the working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizontal surface, said skirt member having an inwardly and upwardly turned ledge disposed at the lip of said skirt member and extending substantially completely around the inner surface thereof thereby forming a trough for receiving such debris removed from the surface of a butcher block by said brushes.
3. In a butcher block scrubber, a frame, a plurality of rotatable brushes supported by said frame and having working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical first skirt member attached to said frame, said first skirt member having a side portion encircling said brushes and normally extending axially beyond said working faces of said brushes, said side portion being imperforate thereby to retain debris thrown against its interior, said first skirt having an upper portion lying above said working faces of said brushes, spring means bearing against said upper portion thereby urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain said working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizontal surface, and a second substantially cylindrical skirt member attached to said frame, said second skirt member having an inside diameter slightly larger than the outside diameter of said first skirt member and being disposed to surround said first skirt member when said working faces of said brushes are moved into contact with a butcher block, thereby to guide the movements of said first skirt member.
4. In a butcher block scrubber, a frame, a plurality of rotatable brushes supported by said frame and having working faces lying substantially in a single plane, means for rotating said brushes about axes perpendicular to said plane, means for resiliently supporting said Working faces of said brushes above the surface of a butcher block, said last mentioned means comprising a rigid and substantially cylindrical first skirt member attached to said frame, said skirt member having a side portion encircling said brushes and normally extending axially beyond said working faces of said brushes, said side portion being imperforate thereby to retain debris thrown against its interior, said first skirt including an inwardly extending and upwardly turned ledge disposed at the lip of said side portion and extending substantially completely around the inner surface thereof thereby to form a trough for receiving such debris, said first skirt having an upper portion lying above said working faces of said brushes, spring means bearing against said upper portion thereby urging said skirt member axially beyond said working faces of said brushes, said spring means being of such stiffness as to maintain said working surfaces of said brushes above the lip of said skirt member when said scrubber rests upon a horizontal surface, and a second substantially cylindrical skirt member attached to said frame, said second skirt member having an inside diameter slightly larger than the outside diameter of said first skirt member and being disposed to surround said first skirt member when said working faces of said brushes are moved into Contact with a butcher block,
2; thereby to guide the movements of said first skirt Number member. 1,643,882 JOSEPH M. DOBROWOLSKI. 1,707,575 2,119,386 References Cited in the file of this patent 5 2,334 453 UNITED STATES PATENTS 2,552,471
Number Name Date Beck Aug. 27, Number 977,701 Broberg Dec. 6, 1910 o 9653 1,000,696 Schlueter Aug. 15, 1911 473,333 1,532,289 Weinbrenner Apr. 7, 1925 553,461 1,559,479 Ushatch Oct. 27, 1925 I 34 215 1,581,824 Amsel Apr. 20, 1926 729 653 Name Date Faiver Sept. 27, 1927 Schooling Apr. 2, 1929 Holm-Hansen May 31, 1938 Dubay Sept. 11, 1945 Watkins May 8, 1951 FOREIGN PATENTS Country Date Great Britain Apr. 18, 1914 Germany Apr. 28, 1928 Germany Sept. 7, 1932 Germany Aug. 20, 1936 France May 2, 1932
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753576A (en) * 1953-08-17 1956-07-10 Libecap Clyde Roy Meat block cleaner
US2773337A (en) * 1954-07-26 1956-12-11 Marchi Arturo De Grinding device
US2922261A (en) * 1957-04-24 1960-01-26 Samuel J Rabkin Apparatus for removing surface coatings
US3119602A (en) * 1962-05-15 1964-01-28 Bert E Johnson Sludge removal hood and bonnet assembly for a rotary power-driven saw
US3673744A (en) * 1971-02-12 1972-07-04 Anders Oimoen Portable grinder
US4097950A (en) * 1977-03-07 1978-07-04 Milliken Research Corporation Device for scrubbing surfaces
US4217671A (en) * 1979-01-25 1980-08-19 Rand Bobby J Multipurpose cleaning device
US4330897A (en) * 1980-03-13 1982-05-25 Octa, Inc. Floor machine
FR2512358A1 (en) * 1981-09-08 1983-03-11 Voigt Lothar APPARATUS FOR CLEANING THE SEALING SURFACE OF THE EDGE OF A MANHOLE
EP0314926A2 (en) * 1987-11-06 1989-05-10 DULEVO INTERNATIONAL S.p.A. Scraping device for floor and surface cleaning machines
US4845795A (en) * 1985-06-10 1989-07-11 Dental Research Corporation Automatic cleaning device
US4934012A (en) * 1988-05-10 1990-06-19 Electricite De France Device for brushing the gasket face of a manhole for gaining access to the inside of a vessel
US5062177A (en) * 1987-07-17 1991-11-05 Rsa Entgrat-Technik Rainer Schmidt Brush head for deburring and brushing machines
US5105802A (en) * 1990-04-06 1992-04-21 Leatherjet Inc. Device for working a conditioning substance on a surface
US20030064670A1 (en) * 2001-10-02 2003-04-03 Matthew Carr Worktool
US20080293346A1 (en) * 2005-12-21 2008-11-27 Linco Food Systems A/S Poultry Defeathering Apparatus
US20130052915A1 (en) * 2011-08-23 2013-02-28 Cha Enterprise Co., Ltd. Drive assembly for a grinder
US8966698B2 (en) 2012-11-27 2015-03-03 Techtronic Floor Care Technology Limited Brush head for an electric toothbrush
US20190202025A1 (en) * 2016-06-03 2019-07-04 Husqvarna Ab Grinding head for floor grinding machine and method of assembling a grinding head, setting a belt tensioner, servicing, assembling or disassembling a belt pulley for a floor grinding machine

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191409658A (en) * 1913-04-21 Pelisse Francisque Improvements in Mechanical Cleaning and Polishing Devices for Floors.
US864403A (en) * 1907-05-31 1907-08-27 Louis Broz Floor-finishing apparatus.
US977701A (en) * 1909-02-08 1910-12-06 Arthur Hawthorne Davis Floor-cleaner.
US1000696A (en) * 1911-03-16 1911-08-15 Max L Schlueter Machine for surfacing stone floors.
US1532289A (en) * 1925-04-07 R wembeenner
US1559479A (en) * 1924-05-17 1925-10-27 Ushatch Peter Ceiling-washing apparatus
US1581824A (en) * 1925-12-07 1926-04-20 Amsel Henry Apparatus for scrubbing, mopping, and polishing floors
US1643882A (en) * 1926-10-09 1927-09-27 Marshall A Faiver Meat-block cleaner
US1707575A (en) * 1925-09-28 1929-04-02 Henry E Schooling Floor-polishing machine
DE478383C (en) * 1928-04-28 1929-06-24 Stephan Hilger Wash brush provided with a pressurized water tank
FR729658A (en) * 1931-11-21 1932-07-29 Electrically operated steel brush, especially for cleaning butcher blocks
DE558461C (en) * 1932-09-07 Friede Harmuth Geb Hederich Mechanically rotatable brush with a fixed ring brush as a splash catcher
DE634215C (en) * 1936-08-20 Georg Bode Machine for processing wooden and stone floors or the like with a horizontally rotating disc brush
US2119386A (en) * 1934-08-28 1938-05-31 Gen Electric Floor polishing machine
US2384458A (en) * 1943-03-06 1945-09-11 Frank X Dubay Fur cleaning apparatus
US2552471A (en) * 1948-07-22 1951-05-08 Morris W Watkins Housing for electric meat block scraping brush having split handle motor circuit closing means

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634215C (en) * 1936-08-20 Georg Bode Machine for processing wooden and stone floors or the like with a horizontally rotating disc brush
DE558461C (en) * 1932-09-07 Friede Harmuth Geb Hederich Mechanically rotatable brush with a fixed ring brush as a splash catcher
US1532289A (en) * 1925-04-07 R wembeenner
US864403A (en) * 1907-05-31 1907-08-27 Louis Broz Floor-finishing apparatus.
US977701A (en) * 1909-02-08 1910-12-06 Arthur Hawthorne Davis Floor-cleaner.
US1000696A (en) * 1911-03-16 1911-08-15 Max L Schlueter Machine for surfacing stone floors.
GB191409658A (en) * 1913-04-21 Pelisse Francisque Improvements in Mechanical Cleaning and Polishing Devices for Floors.
US1559479A (en) * 1924-05-17 1925-10-27 Ushatch Peter Ceiling-washing apparatus
US1707575A (en) * 1925-09-28 1929-04-02 Henry E Schooling Floor-polishing machine
US1581824A (en) * 1925-12-07 1926-04-20 Amsel Henry Apparatus for scrubbing, mopping, and polishing floors
US1643882A (en) * 1926-10-09 1927-09-27 Marshall A Faiver Meat-block cleaner
DE478383C (en) * 1928-04-28 1929-06-24 Stephan Hilger Wash brush provided with a pressurized water tank
FR729658A (en) * 1931-11-21 1932-07-29 Electrically operated steel brush, especially for cleaning butcher blocks
US2119386A (en) * 1934-08-28 1938-05-31 Gen Electric Floor polishing machine
US2384458A (en) * 1943-03-06 1945-09-11 Frank X Dubay Fur cleaning apparatus
US2552471A (en) * 1948-07-22 1951-05-08 Morris W Watkins Housing for electric meat block scraping brush having split handle motor circuit closing means

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753576A (en) * 1953-08-17 1956-07-10 Libecap Clyde Roy Meat block cleaner
US2773337A (en) * 1954-07-26 1956-12-11 Marchi Arturo De Grinding device
US2922261A (en) * 1957-04-24 1960-01-26 Samuel J Rabkin Apparatus for removing surface coatings
US3119602A (en) * 1962-05-15 1964-01-28 Bert E Johnson Sludge removal hood and bonnet assembly for a rotary power-driven saw
US3673744A (en) * 1971-02-12 1972-07-04 Anders Oimoen Portable grinder
US4097950A (en) * 1977-03-07 1978-07-04 Milliken Research Corporation Device for scrubbing surfaces
US4217671A (en) * 1979-01-25 1980-08-19 Rand Bobby J Multipurpose cleaning device
US4330897A (en) * 1980-03-13 1982-05-25 Octa, Inc. Floor machine
FR2512358A1 (en) * 1981-09-08 1983-03-11 Voigt Lothar APPARATUS FOR CLEANING THE SEALING SURFACE OF THE EDGE OF A MANHOLE
US4485517A (en) * 1981-09-08 1984-12-04 Voigt Lothar A Device for automatically cleaning manhole rims
US4845795A (en) * 1985-06-10 1989-07-11 Dental Research Corporation Automatic cleaning device
US5062177A (en) * 1987-07-17 1991-11-05 Rsa Entgrat-Technik Rainer Schmidt Brush head for deburring and brushing machines
US4862548A (en) * 1987-11-06 1989-09-05 Dulevo S.P.A. Scraping device for floor and surface cleaning machines
EP0314926A3 (en) * 1987-11-06 1991-03-13 DULEVO INTERNATIONAL S.p.A. Scraping device for floor and surface cleaning machines
EP0314926A2 (en) * 1987-11-06 1989-05-10 DULEVO INTERNATIONAL S.p.A. Scraping device for floor and surface cleaning machines
US4934012A (en) * 1988-05-10 1990-06-19 Electricite De France Device for brushing the gasket face of a manhole for gaining access to the inside of a vessel
US5105802A (en) * 1990-04-06 1992-04-21 Leatherjet Inc. Device for working a conditioning substance on a surface
US20030064670A1 (en) * 2001-10-02 2003-04-03 Matthew Carr Worktool
US20080293346A1 (en) * 2005-12-21 2008-11-27 Linco Food Systems A/S Poultry Defeathering Apparatus
US7648412B2 (en) * 2005-12-21 2010-01-19 Linco Food System A/S Poultry defeathering apparatus
US20130052915A1 (en) * 2011-08-23 2013-02-28 Cha Enterprise Co., Ltd. Drive assembly for a grinder
US8870631B2 (en) * 2011-08-23 2014-10-28 Cha Enterprise Co., Ltd. Drive assembly for a grinder
US8966698B2 (en) 2012-11-27 2015-03-03 Techtronic Floor Care Technology Limited Brush head for an electric toothbrush
US20190202025A1 (en) * 2016-06-03 2019-07-04 Husqvarna Ab Grinding head for floor grinding machine and method of assembling a grinding head, setting a belt tensioner, servicing, assembling or disassembling a belt pulley for a floor grinding machine
US12048982B2 (en) * 2016-06-03 2024-07-30 Husqvarna Ab Grinding head for floor grinding machine and method of assembling a grinding head, setting a belt tensioner, servicing, assembling or disassembling a belt pulley for a floor grinding machine

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