Rotary Patents (Class 15/198)
  • Patent number: 11623325
    Abstract: A rotary radial wire brush made of an annular center disc hub having 32 holes circumferentially spaced apart two radially offset distances from a center about which the brush rotates with a brush wire formed of between 22 and 34 filaments or bristles providing increased material removal rates during a longer useful operating life. A preferred brush has a hub with radially outermost openings larger in size than radially innermost openings causing the brush wire anchored by its twist knot thereto to be more flexible and extend farther radially outwardly than a shorter stiffer more aggressive wire produced by anchoring via a longer twist knot to radially innermost openings. Such a construction produces a rotary brush of the invention with brush wires of alternating flexible and aggressive construction increasing surface finish and material removal rates while having increased brush life.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: April 11, 2023
    Assignee: OSBORN, LLC
    Inventors: Brian Keiser, Brad Vanwinkle, Zachary Baumgardner, Zachary Small, Shane Clifford
  • Patent number: 10925386
    Abstract: A device for processing a surface of a work piece. A motor is configured to produce a rotary force. A driving pulley is operatively coupled to the motor such that the rotary force produced by the motor causes rotation of the driving pulley. A belt is operatively coupled to the driving pulley such that rotation of the driving pulley causes rotation of the belt. A second pulley is also operatively coupled to the belt such that rotation of the belt causes rotation of the second pulley. Bristles are coupled to the belt and extend away from the belt. The rotary force produced by the motor causes the plurality of bristles to move relative to the motor. The surface of the work piece is processed when the bristles contacts the surface while the bristles are moving.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: February 23, 2021
    Assignee: Marquette University
    Inventor: Robert J. Stango
  • Patent number: 10674807
    Abstract: A cosmetic brush is provided that is capable of enhancing an ability to retain a liquid cosmetic material and making fine adjustment to the eyelashes easier. The cosmetic brush comprises a core wire part and a bristle group radially attached to the core wire part around an axis of the core wire part continuously in a helical state in an axial direction of the core wire part. The bristle group has bristles each constituted by integrating a basic fiber made up of a plurality of bundled constituent fibers and a wound fiber helically wound around an outer circumferential surface of the basic fiber.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: June 9, 2020
    Assignee: SINWA CORPORATION
    Inventors: Hironori Aso, Akihiro Tanaka
  • Patent number: 10051797
    Abstract: A sweeping machine for working ground surfaces, in particular lawns comprises a machine frame adapted to be moved in the traveling direction, at least one wheel axle with at least one wheel, said wheel axle being supported in the machine frame transversely to the traveling direction, said wheel axle supporting the machine frame parallel to the ground surface, a least one sweeping element adapted to be driven for rotation about a sweeping element axis, said sweeping element axis extending substantially parallel to the ground surface, and said sweeping element is in contact with the ground surface when in an operating position. The sweeping machine of the invention provides that the sweeping element axis of the at least one sweeping element is adapted to be moved from a first operating position, assumed when travelling straight, to a second operating position, assumed when driving a curve, in which second position the sweeping element axis is in a position pivoted towards the inner side of the curve.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: August 21, 2018
    Assignee: REDEXIM HANDEL-EN EXPLOITATIE MAATSCHAPPIJ B.V.
    Inventor: Cornelius Hermanus Maria De Bree
  • Patent number: 8926407
    Abstract: Devices for removing a coating on a pipe are provided. In one aspect, a device for removing a coating on a pipe includes a sleeve, an arm coupled to the sleeve, and a wheel coupled to the arm. The sleeve includes a wall and an aperture defined through the wall. The wall defines a cavity in the sleeve and the sleeve is adapted to receive the pipe in the cavity. The device also includes a wheel coupled to the arm and adapted to extend through the aperture to engage the coating on the pipe.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: January 6, 2015
    Assignee: Illinois Tool Works Inc.
    Inventors: Randy D. Lewkoski, Timothy P. Sheehan
  • Patent number: 8132287
    Abstract: The present invention relates to a cleaning device comprising cleaning means and a frame body. The frame body is provided with a plurality of connecting holes, wherein each connecting hole is constituted by a larger diameter hole and a smaller diameter hole, such that a twisted cleaning means with flexibility is folded to stuff through the connecting holes from the smaller diameter hole to the larger diameter hole. The folded twisted cleaning means with flexibility then is pulled back so as to bind the twisted cleaning means with flexibility in the frame body.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: March 13, 2012
    Assignee: Dikai International Enterprise Co., Ltd.
    Inventor: Ming-Che Ting
  • Patent number: 7802339
    Abstract: Side brushes adapted to be mounted on a sweeping machine and operative as a brush about a rotation axis are disclose herein. The side brushes include a base element and a bristle segment. According to one embodiment, the base element has at least one outer edge and an elongate channel extending inwardly from a respective outer edge. The bristle segment has a plurality of bristles and a frame member. The frame member has a configuration complementary to a configuration of the elongate channel such that interaction between the frame member and the base element adjacent the elongate channel couples the bristle segment to the base element. Each bristle has a top end, and all of the bristle top ends are fused together to define the frame member.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: September 28, 2010
    Assignee: Sajakorpi Oy
    Inventors: Reijo Kuivikko, Kimmo Sajakorpi
  • Publication number: 20080189923
    Abstract: According to the invention, a method is used for surface treatment of objects (7), wherein wire rollers (15) are caused to contact the object (7) to exert a blow or hammer impact, which wire rollers (15) partly rotate (8), partly revolve (12), partly move (14) transversely to the object (7) on the belt (11). This ensures an effective and completely uniform treatment (knocking-off, cleaning) of surface coatings, including oxide layers, by a non-abrasive or non-cutting treatment, but solely an impact stress. A rotating wire roller (15) may advantageously be used, which roller is composed of wire elements (1, 2, 3) mounted on stays (4) so that they may bounce slightly rearwards (9) at impact, and otherwise remain in the same position by means of the centrifugal force and the engagement of the wire end with an adjacent stay (4).
    Type: Application
    Filed: March 2, 2006
    Publication date: August 14, 2008
    Applicant: HH PATENT A/S
    Inventor: Keld Hundebol
  • Patent number: 7203987
    Abstract: A side brush, which is adapted to be mounted on the body of a sweeping machine, for use as a brush rotatable about a rotation axis, and which includes a base and a plurality of individual bristle segments detachably mountable thereto, having bristles included therein integrated for a solid unit with a frame member joining the same. The base includes a substantially planar disc assembly which is provided integrally with a coupling system for coupling the bristle segments therewith on a snap fit principle. The coupling system includes elongated channels disposed in the base in a substantially radial direction and extending through the base, opening all the way to the edge thereof, which enable coupling the bristle segments immovably to the engagement with the body of a sweeping machine by means of the base with fasteners interconnecting the same.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: April 17, 2007
    Assignee: Sajakorpi Oy
    Inventors: Reijo Kuivikko, Kimmo Sajakorpi
  • Patent number: 6665901
    Abstract: The present invention is directed to a brush head, particularly a toothbrush head, and to a method of manufacturing such a brush head. The brush head includes a bristle carrier and bristles fixedly secured thereto, said bristle carrier having a slot-type recess in which a multiplicity of bristles is received forming an elongated tuft with a closed, smooth outer contour corresponding essentially to the contour of the slot-type recess. According to the invention the brush head is characterized in that the slot-type recess is divided by means of at least one transverse wall into several segments, a separate tuft is inserted and secured in each of the segments, and the at least one transverse wall is constructed so that the separate tufts converge, forming in combination the elongated tuft with a closed, smooth outer contour.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: December 23, 2003
    Assignee: Braun GmbH
    Inventors: Georges Driesen, Thomas Fritsch, Armin Schwarz-Hartman
  • Patent number: 6457202
    Abstract: An improved brush assembly for mounting on horizontally rotating brushes on street sweeping machines. A circular disk carries brush holders holding bristles in the desired configuration. The brush holders are clamped to the disk by a clamp having a clamp bar that engages the brush holder and is maintained parallel to the brush holder with an offset support. A bolt and nut combination between the brush holder and disk presses the clamp bar firmly against the brush holder to hold it in place. Alignment holes in the brush holder cooperate with pins on the clamp bar to maintain the brush holder in the proper position. Holes through the brush holder have transverse walls so that U-shaped bristles can be extended through the holes with legs of the U-shape on opposite sides of the transverse walls. The brush holder can be configured with a reinforced strip area for extra strength and a pair of reinforced tabs to provide further strength to resist cracking and fatigue failure during use.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: October 1, 2002
    Inventors: Randolph Torres, Doug Shelstrom
  • Patent number: 6422932
    Abstract: An integrally molded brush. A preferred embodiment of the integrally molded brush includes a) a generally planar hub having an outer periphery, where the hub has a thickness of at least 0.05 inches; and b) a plurality of bristles extending from the outer periphery of the hub, where each of the bristles includes a bristle tip opposite the hub, where the bristle tip has a thickness up to 0.03 inches, and where the molded brush comprises a thermoplastic polymeric material. The present invention also provides a method of molding an integrally molded brush. A preferred embodiment of the method includes the steps of: a) heating a thermoplastic polymer to allow the thermoplastic polymer to be injected into a mold; b) injecting the thermoplastic polymer into a mold, wherein the mold includes a hub section and a plurality of bristle sections in fluid communication with the hub section, where the bristle tip section has a thickness up to 0.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: July 23, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Kent E. Lageson, Yvonne I. Lund, Brent D. Niccum, Carole A. Tronnes
  • Patent number: 6134740
    Abstract: An improved brush assembly for horizontally rotating brushes on street sweeping machines. A circular disk carries brush holders for holding bristles in the desired configuration. The brush holders are clamped to the disk by a clamp having a clamp bar that engages the brush holder and is maintained parallel to the brush holder with an offset support. A bolt between the brush holder and offset support presses the clamp bar firmly against the brush holder to hold it in place. Alignment holes in the brush holder cooperate with pins on the clamp bar to maintain the brush holder in the proper position. Holes through the brush holder have transverse walls so that U-shaped bristles can be extended through the holes with legs of the U-shape on opposite sides of the transverse walls. Preferably, the holes position the bristles outwardly of the disk at about 62.degree. to the disk.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: October 24, 2000
    Inventors: Randolph Torres, Douglas Shellstrom
  • Patent number: 5926904
    Abstract: An abrading tool or brush is formed with an open center low density tuft. The tufts are laterally slightly compressed and encapsulated in a medium density elastomeric foam reinforcement having a density of from about 20 to about 50 lbs/cu/ft (320-800.90 Kg/cu. meter). When the tufts are formed, preferably of wire, they are twisted about a core extending axially of the tufts. The core includes angled facets which form corners around which the wire is bent to form closely spaced bends to promote short fracture of the wire in use.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: July 27, 1999
    Assignee: Jason Incorporated
    Inventor: Rueben Brown Warner
  • Patent number: 5903951
    Abstract: A molded brush segment having a plurality of integrally molded bristles extending from a generally planar center portion. The brush segment is molded from a moldable polymer such a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The moldable polymer preferably includes a plurality of organic or inorganic abrasive particles interspersed throughout at least the bristles, and can be interspersed throughout the brush segment. The molded brush segments can be generally circular, with the bristles extending radially outward in the plane defined by the central portion. A plurality of brush segments can be combined to form a brush assembly. Also disclosed is a method of making a molded abrasive brush and a method of refining a workpiece surface with a molded abrasive brush.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: May 18, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard Ionta, Donna W. Bange, David E. Johnson, Mara E. Liepa, Richard M. Pihl, David C. Roeker
  • Patent number: 5406669
    Abstract: A rotary brush is disclosed for use in treating an object of interest. The rotary brush includes a central hub having a peripheral edge, and a plurality of apertures are formed in the hub and located in predetermined spaced relation along the peripheral edge; and a knot of wire is received in each of the apertures and defines a face having a variable width dimension.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: April 18, 1995
    Assignee: The Milwaukee Brush Manufacturing Co., Inc.
    Inventor: Bill Lesiw
  • Patent number: 5200571
    Abstract: A primer pocket cleaner for cartridge cases has a bundle of bristles mounted in a base with a retractable spring surrounding the bristles. The base is mounted in a motor to rotate the bundle of bristles. The spring keeps the bundle of bristles together while allowing them to vibrate as a cartridge case primer pocket is pressed against the end of the rotating bundle of bristles not mounted into the base.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: April 6, 1993
    Inventor: Doyle D. Gracey
  • Patent number: 5045091
    Abstract: A rotary brush with removable brush elements is provided. The brush elements are disposed on a hub in a radial display. The brush elements include a resiliently flexible element which permits the brush to deflect at a greater angle from a rest position than the angle of deflection of the bristles of the brush from a normal position when the hub is rotated with the bristles in contact with the workpiece.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: September 3, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerald R. Abrahamson, Ernest J. Duwell
  • Patent number: 4998316
    Abstract: A circular ring shaped brush section for sweeping machines, and procedure for production of such brush section is provided. The individual wires (4) in the brush section are held in position mutually in an area close to the internal periphery of the brush section by means of a ring-shaped layer (7) of a thermoplastic material and by a ring (6) which is clamped round the wires (4) and the ring-shaped layer (7). The brush section can be produced as follows: a sheaf of wires (4) is first creased and cut to length whereafter the wires (4) are cut to accurate length and then a layer (7) of a thermoplastic material is moulded or extruded on one end of the wires (4). The wires (4) are then given the shape of a coherent wire matting. The material (7) is surface cooled in a cooling device (12) whereafter it is forced into shape in a compression and shaping device (13).
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: March 12, 1991
    Inventor: Kim F. Maltarp
  • Patent number: 4765013
    Abstract: The brush segments of a gutter broom have self-locking lugs that are received in holes in the broom's drive plate to mount the segments. Dogs of the segments spring into at least some of the holes to keep the segments from unlocking.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: August 23, 1988
    Assignee: FMC Corporation
    Inventor: James T. Lowe
  • Patent number: 4604766
    Abstract: A tile cleaning device for removing calcium build-up which occurs substantially at and above a liquid level in a pool or the like which includes a wheeled frame adapted to be placed on a ledge surrounding the pool which is driven to cause the frame to move away from the pool edge, a brush attached to the frame and driven by a motor, the brush extending within the pool and adapted to abut against tile forming a pool wall so that the tension of the frame moving away from the pool provides pressure against the brush for cleaning the tile. Additional pressure can be brought to bear against the tile by providing an additional wheel with adjustment to alter the configuration of the frame relative to the pool edge so as to change the angle of attack of the brush, and a source for providing water upon the brush-tile interface is provided not only to lubricate the interface, but also to wash away calcium deposits that are stricken off the tile.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: August 12, 1986
    Inventor: Dennis Avery
  • Patent number: 4563839
    Abstract: An abrasive flap wheel assembly including abrasive packets having their inner end portions disposed in recesses in the hub and being attached so that they project at about a right angle to a radius of the hub through the area of attachment between the hub and the abrasive packet to provide a small assembly that facilitates contact between a large portion of the major outer abrasive faces of the packets. Also the outer ends of the pieces of abrasive-coated material in the packets are spaced to provide exposed abrasive-coated end portions for the underlying pieces of abrasive-coated material in the packets.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: January 14, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James C. Huppert
  • Patent number: 4534080
    Abstract: A chimney cleaning tool which is adapted to be inserted on the end of a power driven motor such as an electric drill. The tool has an attachment device carried on a remote end of an elongated shaft. Elongated multistrand steel twisted cables extend outwardly from the attachment device. The outer ends of the twisted cables are circumferentially spaced from each other and are free to untwist to form a plurality of brush-like heads for cleaning chimneys and the like. A restricting member is carried on each of the multistrand twisted cables intermediate the outer and inner ends, limiting the extent that the cables can untwist from the outer ends inwardly towards the inner ends.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: August 13, 1985
    Inventors: Robert S. Young, Wilton Leopard
  • Patent number: 4531252
    Abstract: The invention consists of arranging a number of wire bundles on a supporting disc in openings of the disc, provided in circular rows coaxial with the disc and at different distances from the periphery of the disc.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: July 30, 1985
    Inventor: Claude Arnal
  • Patent number: 4504997
    Abstract: A brushing tool for metal working has a circular disc perforated adjacent the rim with a plurality of holes through which wire bundles are passed and then twisted to form radially-extending knots. A plurality of notches are provided in the rim adjacent the holes to provide support for the knots and to limit pivotal movement of the knots in the plane of the disc during use without the need for side plates.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: March 19, 1985
    Assignee: Weiler Brush Company Inc.
    Inventor: Karl M. Weiler
  • Patent number: 4488760
    Abstract: A brushing tool for metal working has a circular disc perforated adjacent the rim with a plurality of holes through which wire bundles are passed and then twisted to form radially-extending knots. A plurality of notches are provided in the rim adjacent the holes to provide support for the knots and to limit pivotal movement of the knots in the plane of the disc during use without the need for side plates.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: December 18, 1984
    Assignee: Weiler Brush Company, Inc.
    Inventor: Karl M. Weiler
  • Patent number: 4457040
    Abstract: An industrial cup-shaped brush in which both inward and outward pivotal movements of the wire bristles caused by scrubbing or rotary motions is effectively resisted by providing elongated supports on the knot plate for the wire bristles and anchoring the bristles to the elongated supports by elongated loops of generally complementary shape to the elongated supports.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: July 3, 1984
    Assignee: Weiler Brush Company
    Inventor: Frank J. Hettes
  • Patent number: 4445248
    Abstract: This rotary stripper is provided with a cylindrical housing rotatable in one direction. The housing has a plurality of peripheral wall openings through which project arms of flexible blades. Each blade has a longer work engaging flexing arm, and a shorter reaction arm which intercepts a longer flexing arm as it rebounds forwardly from the work. Both arms may project through the same wall opening to confront each other. Alternatively the longer arm may project through one wall opening while the reaction arm projects through the next trailing wall opening to confront the longer arm of the next trailing blade. Each wall opening has a curved abutment surface at the trailing side of each longer arm in the opening. This surface is contacted by the longer arm as it ends rearwardly during contact with the work.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: May 1, 1984
    Assignee: International Hardware, Inc.
    Inventor: James M. Hait
  • Patent number: 4408367
    Abstract: An end brush construction in which a cup-shaped bristle holder is permanently attached to an arbor by deforming the arbor in place on the holder. As disclosed, the arbor is caused to freely upset radially into a surrounding zone of the cup holder. Where the cup holder is formed from sheet material, it can be provided with an axially extending flange to increase the support area which is engaged by the expanded arbor.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: October 11, 1983
    Assignee: Advance Brushes, Inc.
    Inventor: Ronald J. Pusterhofer
  • Patent number: 4377412
    Abstract: A rotary scraper device for treating a work surface, comprises a generally cylindrical hollow hub casing having a peripheral wall. The hub casing has a closed end wall and open opposite end with a cover plate removably mounted on the open end of the hub casing, and a shaft extending axially outward of the cover plate for rotating the hub casing axially in one direction. Spaced walls inside the hub define chordal channels opening at the peripheral wall. The channels terminate at axially disposed sleeves inside the hub casing. Springy U-shaped clips have cylindrical bights fitted in the sleeves and springy side walls abutting spaced walls of the channels. Springy ends of the clips extend outwardly beyond the peripheral wall of the hub casing. Straight springy shanks of the fingers fit turnably in coplanar array inside the clips axially of the hub casing. Knuckles at ends of the fingers fit in the cylindrical bights axially of the hub casing.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: March 22, 1983
    Inventor: John S. Viehe
  • Patent number: 4375114
    Abstract: This invention relates to a brush consisting of a number of disc shaped elements molded into a unit-each disc supporting wire bundles extending from one side to the other through holes substantially larger than the cross-section of the corresponding wire bundle, each disc being impregnated with an elastomer to permit applying power under pressure of the elastomer.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: March 1, 1983
    Inventor: Claude Arnal
  • Patent number: 4324017
    Abstract: A rotary device for treating a work surface comprises a generally cylindrical hub body having a closed end wall, an open other end, and a rather serpentine endless peripheral wall formed with smoothly merging cylindrical wall sections, curved wall sections, flat wall sections and inner cylindrical wall sections. The flat wall sections define channels and the inner cylindrical wall sections define sleeves for removably receiving interchangeable springy fingers with cylindrical knuckles at their inner ends in side-by-side array axially of the hub body. Free ends of the springy fingers extend chordally outward from the hub body in directions opposite to the direction of rotation of the hub body. A centrally apertured cover plate closes the open end of the hub body. A bolt extends axially through a central passage in the hub body. The bolt has a keyed head mating nonrotatably with a corresponding keyed end of the central passage to insure insertion of the bolt in correct axial direction in the hub body.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: April 13, 1982
    Inventor: John S. Viehe
  • Patent number: 4302863
    Abstract: Brush bridges with bristle bunches are used in a rotating brush roller in sweeping machines. The bridges can be inserted in axial guides on the brush roller. Each brush bridge comprises two U-shaped sections welded together to form a box section. Openings are made in these sections, and the bristle bunches are inserted and retained in said openings.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: December 1, 1981
    Inventor: Walter Droeser
  • Patent number: 4229912
    Abstract: A pair of spaced coaxial body disks of substantial diameter are spaced apart by at least the length of an axial hub fixedly mounted on one of the disks and projecting toward the other disk, the hub having a threaded bore opening through its end adjacent to the other disk so that a threaded shank portion of an arbor extending through the other disk and threaded into the bore retains the disks in assembled orientation together with a plurality of working element supporting shafts fixedly mounted on the one disk at spaced intervals and having free ends received in socket holes in the other disk. Working elements comprising stripper flails, emery strips, polishing strips, or the like are adapted to be mounted on the supporting shafts. Sanding or polishing material carried by a hollow core received about the hub may have a plurality of sanding or polishing strips projectable from the perimeter of the assembly through spaces between the shafts for sanding or polishing purposes in rotary operation of the tool.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: October 28, 1980
    Inventor: William F. Laughlin
  • Patent number: 4200947
    Abstract: A rotary stripper, which can be chucked to a drive shaft, comprises a pair of discs spaced by a centrally positioned intermediate hub which has radial slots. Immediately outward of the hub and arranged in a ring concentric thereto are a series of equidistantly spaced pins, the axes of which are parallel to the central axis of the hub. The location of the pins, in a circular sense, places one thereof at and in adjacent relation to the outer end of each slot, offset from a direct alignment with the slot. The offset in each case is in a direction counter to that in which the hub is intended to rotate in use.Stripper elements which are relatively rigid but have a minor degree of flexibility are simultaneously slip fit to each pin and in the slot adjacent thereto and are resiliently mounted thereby to the hub. The stripper elements are contained by the discs to either end of the hub.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: May 6, 1980
    Inventor: Frank F. Ali
  • Patent number: 4183113
    Abstract: An improved rotary scraper having a central rotatable hub and a plurality of scraper members pivotally attached to said hub and extending outwardly therefrom for sliding engagement with and at an angle to a work surface is provided. The scraper members each comprise a coil spring disposed about a rod formed in the hub and a pair of generally parallel equal length spring fingers extending from the ends of said coil. During rotation, the scraper members are restrained in a position at an angle to the work surface by means of one finger of each pair bearing against the spring coil on an adjacent rod disposed in the hub. The finger which is restrained by the adjacent rod is stiffer than the other finger of the pair, which is restrained only by the coil, so that the degree of scraping action can be controlled by the pressure exerted upon the hub to bring the less stiff finger or both fingers into contact with the work surface.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: January 15, 1980
    Inventor: Robert Fusco
  • Patent number: 4137594
    Abstract: The invention relates substantially to brush consisting of a number of wire bundles forming knots and extending radially from the periphery of a heat conducting disc supporting the wire bundles, all being covered by a first layer of elastomer which has attached to it a second layer of elastomer of substantially less diameter, extending over a portion of said knots; the remainder of the knobs being left uncovered by the second layer thereby forming a flexible base for the movement of the knots as well as permitting heat conduction to the air.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: February 6, 1979
    Inventors: Claude Arnal, Francois Fidry
  • Patent number: 4092758
    Abstract: A brush element containing a plurality of bristles having medial bends formed into a plurality of tufts, each tuft being surrounded by a mechanical restraining means, a back for said brush comprising a body of fiberglass filled and reinforced substantially inflexible high impact thermoset polyester resin, each medial bend of said bristles being embedded in said resin such that its upper end is closer to the top surface of said back than to the bottom surface thereof and the restraining means being closer to the bottom surface of said back than to the top surface thereof. The polyester resin has a notched izod impact strength greater than 2 foot-pounds per inch and a Shore D hardness greater than 50.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: June 6, 1978
    Assignee: Newark Brush Company
    Inventors: John P. Horton, Susan H. LeWand
  • Patent number: 4077081
    Abstract: A sweeper brush section comprising a deformed metal channel with a plurality of outwardly-opening cups or sockets at regularly spaced intervals in which are positioned the inner U-shaped ends of tufts or bunches of wire bristles mounted in non-metallic sleeves. These sleeves are pivoted in the respective cups about transverse axis for limited movement to prevent breakage of the bristle wires, especially at the time of the initial impact of the wires with the surface being swept.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: March 7, 1978
    Inventor: Arthur E. Drumm
  • Patent number: 4062115
    Abstract: A rotary garden cutter utilizes a series of flexible cutter lines conveniently attached to a cutter head. Each cutter line threads into and out of companion apertures in the peripheral wall of the cutter head skirt. Parts of apertures extend circumferentially about the cutter head. A generally cylindrical detachable clamp part fits into the skirt to hold the cutter lines in place. Worn lines are easily removed and new lines readily installed.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: December 13, 1977
    Assignee: Leeco Manufacturing, Inc.
    Inventor: William R. Lee
  • Patent number: 3969090
    Abstract: An industrial brush having a base adapted to be mounted for rotation and having a plurality of strands extending from the base, each strand consisting of a tube braided from filaments of synthetic resin.
    Type: Grant
    Filed: June 22, 1973
    Date of Patent: July 13, 1976
    Assignee: Anderson Corporation
    Inventors: Robert C. Sasena, Roger E. Priest
  • Patent number: 3959862
    Abstract: The invention related to rotary cutting tools for working articles and materials.The disclosed tool has cutting members having their portions adjoining the secured ends of the members received in a sleeve, the free ends of these members being bent radially and urged by a washer against the end face of the sleeve, the cutting effort at the end faces of the bent free ends being determined by the sum of the bending and twisting strain created in the portions of the cutting members, the width of the cutting surface of the tool for one set of the cutting members being determined from the expression: ##EQU1## where D is the diameter of the cutting surface of the tool;B is the width of the cutting surface;D.sub.1 is the external diameter of the set of the cutting members, received in the sleeve;D.sub.2 is the internal diameter of the set of the cutting members, received in the sleeve;.phi.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: June 1, 1976
    Inventor: Viktor Samsonovich Salukvadze
  • Patent number: 3958294
    Abstract: A rotary scraper with fingers striking the work surface at a lagging angle, thus removing material by impact rather than by a scraping action. By way of an example, a wire brush with pivoted fingers that are restrained and unable to fully centrifugally extend radially.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: May 25, 1976
    Assignee: The Thompson Tool Co., Inc.
    Inventor: David E. Thompson
  • Patent number: 3943594
    Abstract: This invention relates to a rotary brush for road-cleaning machines, constituted by a support disc to which are attached a plurality of bundles of fibres, each of the fibres which constitute said bundles being of oblong section and being so orientated that the largest dimension of its section extends perpendicularly to a straight line passing through the point of fixation of said fibre to the support disc and tangential to a circle of determined radius, centered on the axis of the brush.The invention finds application in the field of industrial brush-making.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: March 16, 1976
    Inventor: Pierre L. Alvin