Expansible chamber devices – Collapsible chamber wall portion – Wall portion formed of flexible material
Patent
1982-11-08
1989-03-14
Cohan, Alan
Expansible chamber devices
Collapsible chamber wall portion
Wall portion formed of flexible material
92 48, F01B 1900
Patent
active
048116521
ABSTRACT:
An overpressure device for applying pressure from a first hydraulic fluid to a second hydraulic fluid comprises:
REFERENCES:
patent: 2467883 (1949-04-01), Edwards
patent: 3650181 (1972-03-01), Parr
patent: 3800674 (1974-04-01), Sember
patent: 3975989 (1976-08-01), Hirmann
Cohan Alan
Fox John C.
The British Petroleum Company p.l.c.
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