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US 11,691,240 B1Granted
Friction polishing device for polymer filament
AssigneeTeam Technologies, Inc.
InventorsClark Bow, Wesley Parker
Life of this patent
Estimating the term…
Abstract
A polishing device for polishing bristles includes a grinding surface and a friction material thereon, the friction material having aramid fibers or pulp bonded with a polyimide resin.
Claims5
A polishing system for polishing bristles having tips, the polishing system comprising:
- a polishing device provided by a rotatable, conical surface and a polishing surface provided by a friction material on the rotatable, conical surface configured for polishing the tips of the bristles to partially or fully radius the tips of the bristles with a radius in the range of from about 0.0015 to 0.0090 inches, the friction material consisting essentially of aramid fibers or pulp bonded with a polyimide resin, and having a coefficient of friction of about 0.36 mu, and a static to dynamic friction ratio of about 1.05.
A method for polishing and finishing plastic brush bristles having tips, comprising the steps of:
- (1) providing a polishing device having a polishing surface consisting essentially of an aramid containing material;
- and (2) rotating the polishing device against the tips of the brush bristles to partially or fully radius the tips of the brush bristles with a radius in the range of from about 0.0015 to 0.0090 inches, wherein the polished and finished tips of the brush bristles are substantially devoid of shreds of ground plastic remaining attached to the bristles.
Dependencies are inferred from the claim text.