Valves

Details Valves Valves

1980-05-21

1982-07-06

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

137494, 137DIG9, 13750541, A62B 704

Patent

active

043377661

ABSTRACT:
A tilt valve incorporated in a demand regulator for breathing apparatus has a head which seats over an opening through which the valve stem extends for operation by a pressure-responsive diaphragm. This opening defines the outlet port of a chamber wherein the valve head is disposed, the inlet port of the chamber opening to the same side of the valve head as the outlet port. Gas flowing from the inlet port to the outlet port therefore need not pass between the periphery of the valve head and the surrounding wall of the chamber, so that the head can be a close fit in the chamber to ensure a consistent seating of the head over the valved port.

REFERENCES:
patent: 2949113 (1960-08-01), Bisset
patent: 3357447 (1967-12-01), Zarichansky
patent: 3716053 (1973-02-01), Almovist et al.
patent: 3857407 (1974-12-01), Olson
patent: 4172467 (1979-10-01), Warnow

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