Valves

Details Valves Valves

1974-08-13

1976-03-09

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Supply and exhaust type

1281465, 1375124, 137DIG9, G05D 700

Patent

active

039425479

ABSTRACT:
A valve for directing flow of breath to and from a patient has a first port adapted to be connected to a source of breath, a second port adapted to be connected to a patient and first obturating means in the form of a diaphragm for controlling flow between the first and second ports. A passage in the valve is in continuous communication with the second port through apertures in the diaphragm and second obturating means formed by a further diaphragm controls flow from the second port through the passage. The further diaphragm is arranged to prevent flow through the passage when the first-mentioned diaphragm is allowing flow between the first and second ports.

REFERENCES:
patent: 2841142 (1958-07-01), Hay
patent: 3419029 (1968-12-01), Straub
patent: 3519012 (1970-07-01), Van Patten

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