Molded abrasive brush
AssigneeMinnesota Mining and Manufacturing Company
InventorsDavid E. Johnson, Lawrence J. Mann, Scott M. Mevissen, Richard M. Pihl, David C. Roeker
Life of this patent
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Abstract
A molded abrasive brush having a backing with a plurality of bristles extending therefrom. The backing and bristles are preferably integrally molded. The brush is molded from a moldable polymer such a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The moldable polymer includes a plurality of organic or inorganic abrasive particles interspersed throughout at least the bristles, and can be interspersed throughout the brush. The moldable brush can include an attaching means molded integrally with the backing. Also disclosed is a method of making a molded abrasive brush and a method of refining a workpiece surface with a molded abrasive brush.
Claims36
An integrally molded abrasive brush comprising:
- a flexible base having a first side and a second side, wherein said base is generally planar, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles have an aspect ratio of at least 2, and wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a moldable polymeric material and wherein said moldable polymeric material includes abrasive particles interspersed throughout at least said plurality of bristles.
An integrally molded abrasive brush comprising:
- a base having a first side and a second side, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a thermoplastic elastomer including abrasive particles interspersed throughout at least said plurality of bristles.
An integrally molded abrasive brush comprising:
- a base having a first side and a second side, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- and
- a threaded stud integrally molded with said base and extending from said second side of said base for attaching said abrasive brush to a tool to rotate said abrasive brush;
- wherein said molded abrasive brush comprises a moldable polymeric material and wherein said moldable polymeric material includes abrasive particles interspersed throughout at least said plurality of bristles.
An integrally molded abrasive brush comprising:
- a base having a first side and a second side, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a thermoplastic elastomer and wherein said thermoplastic elastomer includes organic abrasive particles interspersed throughout at least said plurality of bristles.
An integrally molded abrasive brush comprising:
- a generally circular base having a first side and a second side, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles have an aspect ratio of at least 2, and wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a moldable polymeric material and wherein said moldable polymeric material includes abrasive particles interspersed throughout at least said plurality of bristles.
An integrally molded abrasive brush comprising:
- a base having a first side and a second side, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a thermoplastic elastomer including abrasive particles interspersed throughout at least said plurality of bristles.
An integrally molded abrasive brush comprising:
- a generally circular base having a first side and a second side, wherein said base is capable of flexing at least 20.degree. without damage or substantial permanent deformation to said base;
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- and
- a threaded stud integrally molded with said base and extending from the center of said second side of said base for attaching said abrasive brush to a tool to rotate said abrasive brush;
- wherein said molded abrasive brush comprises a moldable polymeric material and wherein said moldable polymeric material includes abrasive particles interspersed throughout at least said plurality of bristles.
Dependencies are inferred from the claim text.