Back to results
US 2003/0157872 A1Published application
Abrasive finishing devices
OwnerMichael Vankov, Bernd Stein +2inventors
InventorsMichael Vankov, Bernd Stein, Christian Stief, Michael Machlitt
Life of this patent
Estimating the term…
Abstract
An abrasive device includes at least two abrasive tracks disposed on a support portion, the abrasive tracks having abrasive surfaces with abrasive elements. The abrasive device may be used to perform various abrasive processes either consecutively or in parallel by means of different abrasive surfaces.
Claims11
An abrasive device comprising:
- a support portion;
- and
- a disc portion, wherein the disc portion comprises
- a first abrasive track having a first abrasive surface, and
- a second abrasive track having a second abrasive surface,
- wherein the abrasive surfaces comprise abrasive elements.
3 more elements
A method for finishing the ends of bristle tuft filaments, comprising:
- (a) providing a rotating disc including at least two abrasive tracks with abrasive surfaces having different abrasive properties, each abrasive surface comprising corresponding abrasive elements;
- (b) contacting an end of a bristle tuft with the first abrasive track to perform a first finishing process;
- and then (c) contacting the end of the bristle tuft with the second abrasive track to perform a second finishing process.
Dependencies are inferred from the claim text.