Cylindrical working member and system employing same

Details Cylindrical working member and system employing same Cylindrical working member and system employing same

1998-01-30

1999-08-10

Nguyen, Hoang

Expansible chamber devices

Piston

Nonmetallic portion

92253, 277435, F01D 900

Patent

active

059341750

ABSTRACT:
An improved cylindrical working member and associated system comprising a simple cylindrical sleeve having an outer surface with two spaced grooves surrounding a cylindrical land. At the other end, a single groove is formed. A "SANDWICH" consisting of a simple O-ring, a single back-up ring, a low snap ring is installed in each groove. An additional low friction snap ring forms a limit stop front cap. A plurality of the cylindrical sleeves can be employed to form a telescoping cylinder system. An additional embodiment using a guide member consisting of a plurality of square tubes of sequentially increasing cross-section formed into a non-rotating telescoping guide member to attach one end to the telescoping system, and other end to a plug of the hollow central rod. A simple system is used for extending and retracting the telescoping cylinder.

REFERENCES:
patent: 2596471 (1952-05-01), Densmore et al.
patent: 2764131 (1956-09-01), Knights
patent: 2854958 (1958-10-01), Wood et al.
patent: 3171334 (1965-03-01), Rasmussen
patent: 4516468 (1985-05-01), Sheriff
patent: 5072811 (1991-12-01), Everhard

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