Expansible device

Details Expansible device Expansible device

1981-07-13

1984-08-28

Garrett, Robert E.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 98R, 92163, 92 90, 277 343, F16J 302, F16J 1546

Patent

active

044677014

ABSTRACT:
An expansible device for exerting force which has a generally "S" shape cross-section, being formed by stepped diameter cylinder, and arrangements using such a device are disclosed. The device may exert sealing forces and be controlled by admission of fluid pressure which acts on a thin wall member so supported as to be subjected to compressive stress alone.

REFERENCES:
patent: 2923130 (1960-02-01), Wheelon
patent: 2991763 (1961-07-01), Marette
patent: 3112095 (1963-11-01), Batzer
patent: 3262707 (1966-07-01), Williams
patent: 3435936 (1969-04-01), Warman
patent: 3527329 (1970-09-01), Jordan
patent: 3995723 (1976-12-01), Holcomb, Jr.
patent: 4026514 (1977-05-01), Sumner et al.
patent: 4165880 (1979-08-01), Olsson

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