Vibration desensitizing piston wear ring for railroad car contro

Details Vibration desensitizing piston wear ring for railroad car contro Vibration desensitizing piston wear ring for railroad car contro

1994-08-03

1995-09-19

Denion, Thomas E.

Expansible chamber devices

With guide or seal on cylinder end portion for piston or...

277177, F16J 1518

Patent

active

054507820

ABSTRACT:
A piston valve assembly in which plastic wear rings are fitted on an aluminum piston member to prevent metal-to-metal engagement between the piston member and the bore of the bushing in which the piston member is operatively disposed in order to eliminate abrasion of the piston member due to vibration in the bushing bore.

REFERENCES:
patent: 3068054 (1962-12-01), Schmidt et al.
patent: 4540182 (1985-09-01), Hoult
patent: 4875405 (1989-10-01), Bernhardt et al.
patent: 5050892 (1991-09-01), Kawai et al.
patent: 5088744 (1992-02-01), Oseman
Encyclopedia of Plastics p. 64 Dated Dec. 1989.

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