US2604362A - Process of making brushes - Google Patents

Process of making brushes Download PDF

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US2604362A
US2604362A US789050A US78905047A US2604362A US 2604362 A US2604362 A US 2604362A US 789050 A US789050 A US 789050A US 78905047 A US78905047 A US 78905047A US 2604362 A US2604362 A US 2604362A
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mold
brush
frangible
bristles
resin
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US789050A
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Bernard E Sugerman
Jerome L Been
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Rubber and Asbestos Corp
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Rubber and Asbestos Corp
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B3/00Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00Brushing, scrubbing, and general cleaning
    • Y10S15/03Matrix

Definitions

  • the present invention relates to a method of forming brushes and particularly to fixing bristlesby embedding the bristle ends in an adhesive substance. It is known in the art to mold brushes by casting a resin in a mold which also supports bristles, but such practice has the disadvantage of using costly machinery which is slow and difficult to operate particularly since the resin may exude around the bristle perforations in the mold and removal from the mold is difficult if not impossible, particularly in the case of round or rotary brushes.
  • the adhesive is cast and in a preferred form is thermoset as by vulcanizing using a frangible form as part of the mold which temporaril supports the bristles or tufts thereof in position in the mold, the frangible member being subsequently destroyed as it is removed from the com pletely formed brush after the adhesive has set.
  • the invention overcomes the difficulty of adhesively setting by molding, brushes of odd shape, particularly round or rotary type brushes, but the principle of the invention will obviously be applicable to other types of brushes.
  • Fig. 1 shows a core member of a rotary or round type of brush prior to setting the bristles thereon.
  • Fig. 2 shows the core member with part of the frangible mold mounted thereon prior to adding the bristles and adhesive.
  • Fig. 3 is a transverse section on the line 33 of Fig. 2 with bristles mounted in the, frangible mold element prior to filling the mold with ad hesive.
  • Fig. l is the same as Fig. 3 after the mold is filled Withadhesive.
  • Fig. 5 is the. same as Fig. 4 after the adhesive is set and the frangible mold element is removed to produce the completed rotary brush.
  • Fig. 6 is a hollow brush back of a flat brush to which bristles are to be adhered.
  • Fig. '7 shows the mounting on the back of Fig. 6 of a frangiblemold element.
  • Fig. 8 shows the next step of inserting the bristles or tufts prior to casting adhesive.
  • Fi 9 shows the completed brush after casting, setting and removing the frangible mold element.
  • Th core element of Fig. 1 is a round metal, wood or plastic body or back, preferably a metallic bar or tube [0 which has a desirably roughened surface ll formed .by knurling, indenting, corrugating, or otherwise for securing firmer adhesion of the plastic thereto.
  • a flange l2 lending strength and forming the ends of a mold.
  • the core is further fitted with spindles l3, which are attached tov the flanges l2 through hubs i4 when the brush is to be mounted for rotation.
  • frangible element 15 is closely fitted over the core extending from flange to flange to complete the molding space between the core tube l0 and frangible element 15 and bounded at each end by flanges l2.
  • the frangible element [5 is generally composed of easily destructible vmaterial such as heavy laminated paper or cardboard. It may be made of light wood or plastic or combinations thereof, preferably some material to be disposed of after molding without great cost.
  • frangible material will be of variable thickness depending on the nature of the material to firmly support the bristles and provide an outer mold surface during casting of the adhesive against possibly some, but not considerable pressure.
  • frangible material is desirably of a nature to which the bristle adhesive will not adhere, but for this purpose the frangible material may be given a coating of adhesive repellent on the inner mold surface It such as with conventional mold lubricant like zinc stearate, silicone grease,
  • the bristles l8 are firmly packed into each perforation ll so that the holes are completely filled and to prevent exudation of fluid adhesive.
  • the bristles I! are inserted until the inner ends contact the tube which forms a backing element therefor.
  • the bristles may be individual as shown or may be inserted as bent tufts (not shown) as is conventional in. the art.
  • the assembly prior to casting the adhesive resin is shown in Fig. 3.
  • the resin may be any liquid, liquefiable resin,
  • liquid resin forming substance which is .thermoplastic or thermo setting. That is the resin is normally liquid and is set after casting by heating to moderate temperatures, or the resin is naturaly solid but is liquefied prior to casting by heating to obtain sufficient fluidity for pouring or extruding into the mold.
  • thermosetting category are Bakelite intermediates and urea aldehydes, and natural and synthetic rubbers or blends thereof, but particularly preferred is depolymerized rubber which may be produced in any desired practical degree of normal temperature fluidity and set or cured with sulphur by the usual methods.
  • thermo-plastics are the polystyrenes, polyvinyl halides, esters, acetals and mixtures, chloro-rubbers, alkyds and linear polyamides. Some of these resins may be applied in the unpolymerized or partially polymerized state and polymerization completed by curing in the mold.
  • one of the flanges [2 of the core is bored at [9 and 29.
  • the liquid resin is then introduced into the mold through one of the openings as H) while the other opening as serves as a vent to allow the air to be displaced from the mold by the liquid resin.
  • the hot or cold liquid resin is then poured or otherwise injected into the mold. If desired, the mold may be vibrated to displace air bubbles.
  • the cast resin is heated to the optimum temperature for curing or setting which will vary depending upon the nature of the resin.
  • frangible mold element 15 is removed by tearing, breaking and stripping from the finished brush.
  • Fig.4 shows the cast resin 2
  • Fig. 5 shows the completed brush after breaking away the frangible mold element l5.
  • FIG. 6 shows the back 22 of a typical fiat brush having a handle 23 and hollowed out portion 24 forming the mold space, one wall of the brush back being bored at 25 for introduction of resin 2
  • Fig. 7 shows the next stage of completing the mold by application of a frangible mold element 26 perforated at 21 in desired pattern for reception of bristles IS. The bristles are packed into the perforations as shown in Fig. 8
  • bristles fill the perforations and prevent exudation of liquid resin, when the resin is a dry powder or not very fluid, it may sometimes 4 be preferred to fill the mold first with resin and then insert the bristles.
  • Example 1 The rotary type brush mold assembled as shown in Fig. 3 with a frangible mold element consisting of medium heavy gauge cardboard laminate having thin cellophane film adhered to its inner mold surface is filled with a liquid resin of the following composition:
  • Example 2 In this case a cardboard element having its inner mold surface treated with plasticized silicone, a resin repellant available commercially as Dow-Corning Silicone Grease #DC-? is used as the frangible element.
  • the following resin composition is introduced into the mold:
  • the filled mold is then cured by heating at 60 C. for eight hours. Thereafter the frangible mold element is torn off to give a strongly set brush.
  • the bristles may be natural hair, nylon, wynene tampico or other known types.
  • the method of forming brushes comprising temporarily assembling a preformed brush back, having flange extending from the edges thereof to define a hollow portion therewith, with a frangible perforated closure member extending across said flanges and thereby form an enclosed molding cavity in the brush back, said frangible closure member being coated with an adhesive repellent substance, said perforated closure member having inserted a tuft of bristles in each of said perforations to a point whereby the inner ends of the bristles within said molding cavity substantially contact the opposite surface of said hollow back portion of said brush, each tuft containing sufiicient bristles to firmly pack each perforation and thereby support each tuft within the perforation and seal the perforation in fluid-tight manner, introducing into said molding cavity a normally liquid elastomeric composi tion settable to a solid by application of heat thereto, whereby the inner ends of each tuft within the molding cavity become embedded within the liquid composition filling the same, heating the brush and heat settable liquid within
  • the method of forming brushes comprising temporarily assembling a preformed brush back, having flanges extending from the edges thereof to define a hollow portion therewith, with a frangible perforated closure member extending across said flanges and thereby form an enclosed molding cavity in the brush back, said frangible closure member being coated with an adhesive repellent substance, said perforated closure member having inserted a tuft of bristles in each of said perforations to a point whereby the inner ends of the bristles within said molding cavity substantially contact the opposite surface of said hollow back portion of said brush, each tuft containing sufficient bristles to firmly pack each perforation and thereby support each tuft within the perforation and seal the perforation in fiuidtight manner, introducing into said molding cavity a normally liquid heat settable depolymerized rubber containing a vulcanizing agent, whereby the inner ends of each tuft within th molding cavity become embedded within the liquid composition filling the same, heating the brush and heat settable liquid within the molding cavity therein to
  • the method of forming a rotary type brush comprising temporarily assembling a preformed brush back, comprising a metallic cylindrical brush back member having its surface roughened to enhance adhesion to a composition molded thereto, and having circular flanges mounted near the outer ends thereof coaxial therewith, together with a cylindrical frangible perforated closure member having a larger diameter than the first cylindrical member and mounted between said fianges and coaxial with said first cylindrical member to form an enclosed molding cavity with said flanges and said first cylindrical brush back member, said frangible closure member being coated with an adhesive repellent substance, said perforated closure member having inserted a tuft of bristles in each of said perforations to a point whereby the inner ends of the bristles within said molding cavity substantially contact the opposite surface of said hollow back portion of said brush, each tuft containing sufiicient bristles to firmly pack each perforation and thereby support each tuft within the perforation and seal the perforation in fluidtight manner, introducing into said molding cavity a normally liquid
  • a rotary-type brush comprising a cylindrical metal core having a roughened surface and a pair of circular flanges mounted near the outer ends thereof coaxial therewith, a plurality of tufts disposed normal to said cylindrical surface with the inner ends contacting the same for radial support and disposed in a pattern over substantially the entire cylindrical surface, said tufts being embedded within a solid vulcanized normally liquid depolymerized rubber composition disposed as a cylindrical layer between and substantially filling the cylindrical volume from flange to flange and firmly supporting and elastomerically compressing each tuft at the cylindrical surface juncture therewith, whereby said brush comprises a smooth cylindrical vulcanized rubber body containing bristle tufts disposed thereabout and resiliently embedded therein.

Description

y 22, 1952 i B. E- SUGERMAN ETAL I 2,604,362
' PROCESS OF MAKING BRUSHES Filed Dec. 1, 1947 Patented July 22, 1952 PROCESS OF MAKING BRUSHES Bernard E. Sugerman, Gladstone, N. vJ., and Jerome L. Been, Brooklyn, N. Y., assignors to Rubber and Asbestos Corp, Jersey City, N. 1., a corporation of New Jersey Application December 1, 1947, Serial No. 789,050v
4 Claims. 1
The present invention relates to a method of forming brushes and particularly to fixing bristlesby embedding the bristle ends in an adhesive substance. It is known in the art to mold brushes by casting a resin in a mold which also supports bristles, but such practice has the disadvantage of using costly machinery which is slow and difficult to operate particularly since the resin may exude around the bristle perforations in the mold and removal from the mold is difficult if not impossible, particularly in the case of round or rotary brushes.
As a primary feature of this invention, the adhesive is cast and in a preferred form is thermoset as by vulcanizing using a frangible form as part of the mold which temporaril supports the bristles or tufts thereof in position in the mold, the frangible member being subsequently destroyed as it is removed from the com pletely formed brush after the adhesive has set.
The invention overcomes the difficulty of adhesively setting by molding, brushes of odd shape, particularly round or rotary type brushes, but the principle of the invention will obviously be applicable to other types of brushes.
It is accordingly a primary object of this invention to provide a method of casting a resinous binder for brush bristles.
It is a further object to mold the resinous binder with a temporary, frangible mold. body capable of supporting the bristles for adhesion to the brush body of any desired shape, but particularly round or rotary brushes.
It is a further object to provide a temporary frangible mold body which will not adhere to the resinous binder and may be easily removed.
The invention is explained in further detail by reference to the drawings which are illustrative of application to two types of brushes, but it will be understood that other types of brushes may be mad according to principles herein. v I v v The several figures of the drawing illustrate the several stages of constr'uction'accordin to the present process.
Fig. 1 shows a core member of a rotary or round type of brush prior to setting the bristles thereon.
Fig. 2 shows the core member with part of the frangible mold mounted thereon prior to adding the bristles and adhesive.
Fig. 3 is a transverse section on the line 33 of Fig. 2 with bristles mounted in the, frangible mold element prior to filling the mold with ad hesive.
Fig. l is the same as Fig. 3 after the mold is filled Withadhesive.
set forth Fig. 5 is the. same as Fig. 4 after the adhesive is set and the frangible mold element is removed to produce the completed rotary brush.
Fig. 6 is a hollow brush back of a flat brush to which bristles are to be adhered.
Fig. '7 shows the mounting on the back of Fig. 6 of a frangiblemold element.
Fig. 8 shows the next step of inserting the bristles or tufts prior to casting adhesive.
Fi 9 shows the completed brush after casting, setting and removing the frangible mold element.
Th core element of Fig. 1 is a round metal, wood or plastic body or back, preferably a metallic bar or tube [0 which has a desirably roughened surface ll formed .by knurling, indenting, corrugating, or otherwise for securing firmer adhesion of the plastic thereto. At each end is a flange l2 lending strength and forming the ends of a mold. The core is further fitted with spindles l3, which are attached tov the flanges l2 through hubs i4 when the brush is to be mounted for rotation.
As shown in Fig. 2 a frangible element 15 is closely fitted over the core extending from flange to flange to complete the molding space between the core tube l0 and frangible element 15 and bounded at each end by flanges l2. The frangible element [5 is generally composed of easily destructible vmaterial such as heavy laminated paper or cardboard. It may be made of light wood or plastic or combinations thereof, preferably some material to be disposed of after molding without great cost.
The frangible material will be of variable thickness depending on the nature of the material to firmly support the bristles and provide an outer mold surface during casting of the adhesive against possibly some, but not considerable pressure.
The frangible material is desirably of a nature to which the bristle adhesive will not adhere, but for this purpose the frangible material may be given a coating of adhesive repellent on the inner mold surface It such as with conventional mold lubricant like zinc stearate, silicone grease,
or regenerated cellulose.
; through which the bristles are firmly but temporarily mounted for adhesion to the core by subsequent casting.
After emplacing the frangible element on the core to form the mold as shown in Fig. 2, the bristles l8 are firmly packed into each perforation ll so that the holes are completely filled and to prevent exudation of fluid adhesive. The bristles I! are inserted until the inner ends contact the tube which forms a backing element therefor. The bristles may be individual as shown or may be inserted as bent tufts (not shown) as is conventional in. the art. The assembly prior to casting the adhesive resin is shown in Fig. 3.
The resin may be any liquid, liquefiable resin,
liquid resin forming substance which is .thermoplastic or thermo setting. That is the resin is normally liquid and is set after casting by heating to moderate temperatures, or the resin is naturaly solid but is liquefied prior to casting by heating to obtain sufficient fluidity for pouring or extruding into the mold.
In the thermosetting category are Bakelite intermediates and urea aldehydes, and natural and synthetic rubbers or blends thereof, but particularly preferred is depolymerized rubber which may be produced in any desired practical degree of normal temperature fluidity and set or cured with sulphur by the usual methods.
Suitable thermo-plastics are the polystyrenes, polyvinyl halides, esters, acetals and mixtures, chloro-rubbers, alkyds and linear polyamides. Some of these resins may be applied in the unpolymerized or partially polymerized state and polymerization completed by curing in the mold. K
For purposes of introducing the fiuid resin into the mold, one of the flanges [2 of the core is bored at [9 and 29. The liquid resin is then introduced into the mold through one of the openings as H) while the other opening as serves as a vent to allow the air to be displaced from the mold by the liquid resin.
The hot or cold liquid resin is then poured or otherwise injected into the mold. If desired, the mold may be vibrated to displace air bubbles. In the case of thermosetting resins and rubbers the cast resin is heated to the optimum temperature for curing or setting which will vary depending upon the nature of the resin.
After the resin is cast, set and cooled, the
frangible mold element 15 is removed by tearing, breaking and stripping from the finished brush. Fig.4 shows the cast resin 2| in the mold and Fig. 5 shows the completed brush after breaking away the frangible mold element l5.
Similar treatment may be applied to other types of brushes as illustrated for a flat brush in Figs. 6, '7, 8 and 9.
Thus Fig. 6 shows the back 22 of a typical fiat brush having a handle 23 and hollowed out portion 24 forming the mold space, one wall of the brush back being bored at 25 for introduction of resin 2|. Fig. 7 shows the next stage of completing the mold by application of a frangible mold element 26 perforated at 21 in desired pattern for reception of bristles IS. The bristles are packed into the perforations as shown in Fig. 8
While the bristles fill the perforations and prevent exudation of liquid resin, when the resin is a dry powder or not very fluid, it may sometimes 4 be preferred to fill the mold first with resin and then insert the bristles.
The following examples show typical operations with specific resins:
Example 1 The rotary type brush mold assembled as shown in Fig. 3 with a frangible mold element consisting of medium heavy gauge cardboard laminate having thin cellophane film adhered to its inner mold surface is filled with a liquid resin of the following composition:
Parts by weight Depolymerized rubber Sulfur 40 Naftolen R-lOO l0 Diphenyl guanidine 2 The filled mold is then vulcanized and cured by heating at C. for 18 hours. Thereafter the frangible cardboard is torn off to give the completed brush a highly desirable bristle setting of superior adhesion, high impact strength and abrasion resistance.
Example 2 In this case a cardboard element having its inner mold surface treated with plasticized silicone, a resin repellant available commercially as Dow-Corning Silicone Grease #DC-? is used as the frangible element. The following resin composition is introduced into the mold:
The filled mold is then cured by heating at 60 C. for eight hours. Thereafter the frangible mold element is torn off to give a strongly set brush.
Considerable variation of the materials of the brush core or back is possible as well as the materials comprising the bristles. The bristles may be natural hair, nylon, wynene tampico or other known types.
In certain cases it may be feasible to introduce the resin as a powder and cure similarly by heat, but such procedure does not give the excellent bristle binding set forth according to the preferred procedure above.
Various modifications are possible within the applicable scope of the inventive principles herein set forth, and it is intended accordingly that the examples be deemed illustrative and not limiting except as set forth in the claims.
What is claimed is:
l. The method of forming brushes comprising temporarily assembling a preformed brush back, having flange extending from the edges thereof to define a hollow portion therewith, with a frangible perforated closure member extending across said flanges and thereby form an enclosed molding cavity in the brush back, said frangible closure member being coated with an adhesive repellent substance, said perforated closure member having inserted a tuft of bristles in each of said perforations to a point whereby the inner ends of the bristles within said molding cavity substantially contact the opposite surface of said hollow back portion of said brush, each tuft containing sufiicient bristles to firmly pack each perforation and thereby support each tuft within the perforation and seal the perforation in fluid-tight manner, introducing into said molding cavity a normally liquid elastomeric composi tion settable to a solid by application of heat thereto, whereby the inner ends of each tuft within the molding cavity become embedded within the liquid composition filling the same, heating the brush and heat settable liquid within the molding cavity therein to set said composi tion to a solid in bristle supporting and bonding relationship within the brush back, and destructively removing said frangible mold element from the finished brush.
2. The method of forming brushes comprising temporarily assembling a preformed brush back, having flanges extending from the edges thereof to define a hollow portion therewith, with a frangible perforated closure member extending across said flanges and thereby form an enclosed molding cavity in the brush back, said frangible closure member being coated with an adhesive repellent substance, said perforated closure member having inserted a tuft of bristles in each of said perforations to a point whereby the inner ends of the bristles within said molding cavity substantially contact the opposite surface of said hollow back portion of said brush, each tuft containing sufficient bristles to firmly pack each perforation and thereby support each tuft within the perforation and seal the perforation in fiuidtight manner, introducing into said molding cavity a normally liquid heat settable depolymerized rubber containing a vulcanizing agent, whereby the inner ends of each tuft within th molding cavity become embedded within the liquid composition filling the same, heating the brush and heat settable liquid within the molding cavity therein to vulcanize and set said composition to a solid in bristle supporting and bonding relationship within the brush back, and destructively removing said frangible mold element from the finished brush.
3. The method of forming a rotary type brush comprising temporarily assembling a preformed brush back, comprising a metallic cylindrical brush back member having its surface roughened to enhance adhesion to a composition molded thereto, and having circular flanges mounted near the outer ends thereof coaxial therewith, together with a cylindrical frangible perforated closure member having a larger diameter than the first cylindrical member and mounted between said fianges and coaxial with said first cylindrical member to form an enclosed molding cavity with said flanges and said first cylindrical brush back member, said frangible closure member being coated with an adhesive repellent substance, said perforated closure member having inserted a tuft of bristles in each of said perforations to a point whereby the inner ends of the bristles within said molding cavity substantially contact the opposite surface of said hollow back portion of said brush, each tuft containing sufiicient bristles to firmly pack each perforation and thereby support each tuft within the perforation and seal the perforation in fluidtight manner, introducing into said molding cavity a normally liquid elastomeric composition settable to a solid by application of heat thereto, whereby the inner ends of each tuft within the molding cavity become embedded Within the liquid composition filling the same, heating the brush and heat settable liquid within the molding cavity therein to set said composition to a solid in bristle supporting and bonding relationship within the brush back, and destructively removing said frangible mold element from the finished brush.
4. A rotary-type brush comprising a cylindrical metal core having a roughened surface and a pair of circular flanges mounted near the outer ends thereof coaxial therewith, a plurality of tufts disposed normal to said cylindrical surface with the inner ends contacting the same for radial support and disposed in a pattern over substantially the entire cylindrical surface, said tufts being embedded within a solid vulcanized normally liquid depolymerized rubber composition disposed as a cylindrical layer between and substantially filling the cylindrical volume from flange to flange and firmly supporting and elastomerically compressing each tuft at the cylindrical surface juncture therewith, whereby said brush comprises a smooth cylindrical vulcanized rubber body containing bristle tufts disposed thereabout and resiliently embedded therein.
BERNARD E. SUGERMAN. JEROME L. BEEN.
REFERENCES CETED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 717,014 Morrison Dec. 30, 1902 737,970 Schwartz Sept. 1, 1903 1,394,255 Davis Oct. 18, 1921 1,402,990 Adams Jan. 10, 1922 1,556,298 Morck Oct. 6, 1925 1,595,006 Kelly Aug. 3, 1926 1,886,759 Taylor Nov. 8, 1932 2,094,008 Freedlander Sept. 28, 1937 2,427,137 Hall Sept. 9, 1947
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Cited By (18)

* Cited by examiner, † Cited by third party
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US2682679A (en) * 1951-12-24 1954-07-06 Wayne Manufacturing Co Rotary sweeper brush having plastic impregnated core
US2746182A (en) * 1951-10-19 1956-05-22 Wolters Peter Needled cover for pressing platen
US2783095A (en) * 1952-12-22 1957-02-26 Wayne Manufacturing Co Methods for forming rotary brushes
US2782439A (en) * 1952-12-22 1957-02-26 Wayne Manufacturing Co Rotary brushes
US2924863A (en) * 1955-01-04 1960-02-16 Morris J Fellner Sheet material perforation
US2995401A (en) * 1957-09-26 1961-08-08 Osborn Mfg Co Composite brushing tool
US3008193A (en) * 1958-02-11 1961-11-14 Rubber And Asbestos Corp Brush manufacturing
US3044833A (en) * 1957-09-26 1962-07-17 Osborn Mfg Co Method and apparatus for making a composite brushing tool
US3106426A (en) * 1955-02-28 1963-10-08 Osborn Mfg Co Brushing tool manufacture
US3129269A (en) * 1959-08-17 1964-04-14 Osborn Mfg Co Method of making a brush type rotary tool
US3255479A (en) * 1964-05-05 1966-06-14 American Lincoln Corp Rotary broom construction
US4092758A (en) * 1975-08-14 1978-06-06 Newark Brush Company Cast power brush
US4258509A (en) * 1978-05-30 1981-03-31 Standard Abrasives, Inc. Flap-type rotary abrasive device
US5108155A (en) * 1990-06-28 1992-04-28 Weiler Brush Company, Inc. Method and apparatus for making a brushing tool
US5588172A (en) * 1994-07-11 1996-12-31 Abtex Corporation Radial brush
US20050082716A1 (en) * 2002-12-06 2005-04-21 Barefield Kevin J. Resin infusion potting
US20090189308A1 (en) * 2003-12-12 2009-07-30 Barefield Kevin J Resin infusion potting
US11701845B2 (en) * 2019-09-17 2023-07-18 Nike, Inc. Method for forming a composite sole structure component

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US717014A (en) * 1898-11-26 1902-12-30 Universal Brush Company Brush.
US737970A (en) * 1902-04-10 1903-09-01 Florence Mfg Company Brush.
US1394255A (en) * 1920-09-23 1921-10-18 Helen M Davis Testing-mold
US1402990A (en) * 1921-01-14 1922-01-10 Adams Joseph Rotary brush
US1556298A (en) * 1922-05-18 1925-10-06 Peter J Morck Brush
US1595006A (en) * 1923-12-03 1926-08-03 Kelly James Lyman Method of manufacturing hollow rubber articles
US1886759A (en) * 1929-06-19 1932-11-08 Goodrich Co B F Oil-resisting rubber article and method of making the same
US2094008A (en) * 1936-09-30 1937-09-28 Dayton Rubber Mfg Co Rubber roll
US2427137A (en) * 1944-01-15 1947-09-09 Elisha W Hall Scrubbing implement

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US717014A (en) * 1898-11-26 1902-12-30 Universal Brush Company Brush.
US737970A (en) * 1902-04-10 1903-09-01 Florence Mfg Company Brush.
US1394255A (en) * 1920-09-23 1921-10-18 Helen M Davis Testing-mold
US1402990A (en) * 1921-01-14 1922-01-10 Adams Joseph Rotary brush
US1556298A (en) * 1922-05-18 1925-10-06 Peter J Morck Brush
US1595006A (en) * 1923-12-03 1926-08-03 Kelly James Lyman Method of manufacturing hollow rubber articles
US1886759A (en) * 1929-06-19 1932-11-08 Goodrich Co B F Oil-resisting rubber article and method of making the same
US2094008A (en) * 1936-09-30 1937-09-28 Dayton Rubber Mfg Co Rubber roll
US2427137A (en) * 1944-01-15 1947-09-09 Elisha W Hall Scrubbing implement

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746182A (en) * 1951-10-19 1956-05-22 Wolters Peter Needled cover for pressing platen
US2682679A (en) * 1951-12-24 1954-07-06 Wayne Manufacturing Co Rotary sweeper brush having plastic impregnated core
US2783095A (en) * 1952-12-22 1957-02-26 Wayne Manufacturing Co Methods for forming rotary brushes
US2782439A (en) * 1952-12-22 1957-02-26 Wayne Manufacturing Co Rotary brushes
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