Wear-resistant capstan for belt driven cartridge
AssigneeMinnesota Mining and Manufacturing Company
InventorLeslie M. Collins
Life of this patent
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Abstract
A conductive, carbon-filled acetal resin capstan within a belt driven tape cartridge is rotatably supported by a pin and includes a cylindrical outer surface for engaging a drive belt. The capstan is electrically conductive to dissipate static electrical charges and includes a polytetrafluoroethylene-filled acetal resin sleeve interposed between the pin and the capstan to increase the wear resistance of the capstan where it frictionally engages the cartridge.
Claims3
A capstan assembly rotatably supported by a mounting pin between spaced, parallel walls of a tape cartridge and having a cylindrical outer surface engaging a drive belt, comprising:
- a conductive, carbon-filled acetal resin capstan providing said cylindrical outer surface;
- and
- a wear-resistant, acetal resin sleeve interposed between said pin and said capstan, which sleeve engages said capstan and is rotatably supported by said pin.
Dependencies are inferred from the claim text.