Pressure regulating diaphragm

Details Pressure regulating diaphragm Pressure regulating diaphragm

1979-01-22

1980-08-26

Hershkovitz, Abraham

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 98D, F01B 1900, F16J 300

Patent

active

042189594

ABSTRACT:
A pressure regulating diaphragm comprises a central base plate section in the form of a hard disc, a peripheral sealing section having the form of a ring located concentrically with said plate section and an intermediate section located between said peripheral sealing section and said central base plate section, said intermediate section consisting of a film having a thickness of from 10 to 100 microns and made of a plastic resistant to chemicals and defining a deformable, flexible portion, whereby a desired shape can be obtained therein.

REFERENCES:
patent: 2307066 (1943-01-01), Paulus
patent: 2646077 (1953-07-01), Whitney
patent: 2678065 (1954-05-01), Crookston
patent: 2715418 (1955-08-01), Van Derbeck
patent: 3011758 (1961-12-01), McFarland, Jr.
patent: 3288664 (1966-11-01), Hoppe
patent: 3327322 (1967-06-01), Norton
patent: 3534500 (1970-10-01), Boehm
patent: 3824903 (1974-07-01), Hahn
patent: 3874052 (1975-04-01), Schantz

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