Fabric-lined epoxy resin cylinder with lubricant retaining groov

Expansible chamber devices – With lubricating means

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92162R, 92170, 138 42, 156170, 156172, 156173, 156175, 277230, 308238, 308240, 428 36, B32B 108, B32B 110, B65H 8106, F01B 1100, F16L 916

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041899857

ABSTRACT:
A woven seamless sleeve including axial yarns forms the inner face of an epoxy resin cylinder for an air operated linear actuator. Under certain conditions, a minute, internal, spiral groove develops in applying the resin. In the operation of the actuator the groove serves to retain lubricant.

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patent: 3804479 (1974-04-01), Butzow et al.
patent: 3832255 (1974-08-01), Shabert
patent: 3909087 (1975-09-01), Cairns
patent: 3955856 (1976-05-01), Wayson et al.
patent: 4006051 (1977-02-01), Board
patent: 4107381 (1978-08-01), Butzow

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