Pressure responsive diaphragm valve

Details Pressure responsive diaphragm valve Pressure responsive diaphragm valve

1988-11-18

1990-01-09

Eickholt, Eugene H.

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

13750513, 137510, A61M 1500

Patent

active

048920940

ABSTRACT:
A pressure responsive diaphragm valve, particularly suitable for a respiration responsive valve for a respirator mask. The whole of the valve assembly body is constituted by the mutually laminated layer members and assembled by simply tightening the layer members together. All of the layer members can be made by molding, without machining.

REFERENCES:
patent: 3973588 (1976-08-01), Holst
patent: 4037594 (1977-07-01), Riegel et al.
patent: 4229832 (1980-10-01), Dickson
patent: 4250876 (1981-02-01), Kranz
patent: 4275723 (1981-06-01), Warncke et al.
patent: 4284075 (1981-08-01), Krasberg
patent: 4442835 (1984-04-01), Carnegie
patent: 4705073 (1987-11-01), Beck

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