Demand regulator

Details Demand regulator Demand regulator

1975-04-08

1976-09-07

Michell, Robert W.

Surgery

Truss

Pad

A62B 700

Patent

active

039788547

ABSTRACT:
A demand regulator for admitting oxygen into emergency breathing systems, resuscitators, and the like comprising a casing supporting a diaphragm and providing a chamber on one side of the diaphragm communicating with the breathing system. The other side of the diaphragm is open to atmospheric pressure. A tilt valve assembly connected to a source of pressurized oxygen opens into the chamber at one side of the diaphragm and includes an elongated tilt valve stem having a free end disposed proximate the center of the diaphragm. The tilt valve is disposed at an acute angle to the diaphragm and is seated by a light cone spring so that only a slight pressure of the diaphragm on the valve stem is required to dislodge the valve from its seat to permit an inflow of oxygen through the valve. For use in a resuscitator, an exhaust check valve and means for normally actuating the tilt valve while closing the check valve are provided.

REFERENCES:
patent: 2817334 (1957-12-01), Sajeck
patent: 3083707 (1963-04-01), Seeler
patent: 3145721 (1964-08-01), Miller
patent: 3357447 (1967-12-01), Zarichansky
patent: 3474785 (1969-10-01), Jansson
patent: 3508542 (1970-04-01), Browner

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