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US 5,098,346 AGranted
Sprocket
AssigneeThe Gates Rubber Company
InventorJohn D. Redmond
Life of this patent
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Abstract
A toothed sprocket with rim portion made of a first composite material of discontinuous fiber disposed in a plastic matrix and where the teeth of the rim portion are covered with an encircling layer of a second composite material that includes a fibrous material and an elastomeric matrix and fibers embedded in the matrix.
Claims10
In a sprocket with (1) a toothed rim portion that includes a first composite material of fiber dispersed in a plastic matrix and (2) a hub portion, and wherein the improvement comprises:
- at least one contoured encircling surface layer of a second composite material of an elastomer and a fibrous material free of glass fiber covering teeth of the toothed rim portion wherein the elastomer defines an elastomeric matrix having embedded fibrous material.
Dependencies are inferred from the claim text.