Air valve for a breathing system

Details Air valve for a breathing system Air valve for a breathing system

1982-05-05

1985-01-15

Recla, Henry J.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137526, 137859, 12820524, F16K 17164

Patent

active

044933398

ABSTRACT:
An emergency air intake valve has a circular plate having a top and bottom and depending central portion adapted to be connected to a conduit. The plate and the depending portion have a vertical bore therethrough. A diaphragm overlies the top of the plate and has a central opening aligned with the bore. The diaphragm has an enlarged depending peripheral portion adjacent the diaphragm opening and adapted to contact the top of the plate adjacent said bore. A cap secures the outer edge of the diaphragm adjacent the outer edge of the plate and forms with the diaphragm a chamber above the diaphragm. The plate has at least one opening therethrough to provide communication between the bottom of the diaphragm and the atmosphere.

REFERENCES:
patent: 2214364 (1940-09-01), Edwards
patent: 2542254 (1951-02-01), Lamb
patent: 3073339 (1963-01-01), Stelzer
patent: 3189042 (1965-06-01), Kerley, Jr. et al.
patent: 3827456 (1974-08-01), Sheppard

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