Breathing valve assembly with diaphragm control of the exhaust p

Details Breathing valve assembly with diaphragm control of the exhaust p Breathing valve assembly with diaphragm control of the exhaust p

1978-08-07

1981-03-03

Haroian, Harry N.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

A61M 1600

Patent

active

042534550

ABSTRACT:
A breathing apparatus having an exhaust valve and a diaphragm actuated inlet valve, wherein the exhaust valve includes a sealing surface against which the diaphragm normally is sealingly engaged to close the opening and from which the diaphragm is disengaged upon exhalation to open the exhaust valve.

REFERENCES:
patent: 2387123 (1965-10-01), Deming
patent: 2755799 (1956-07-01), Marty
patent: 2843120 (1958-07-01), Thaver
patent: 3242921 (1966-03-01), Seeler
patent: 3459216 (1969-08-01), Bloom et al.
patent: 3467093 (1969-09-01), Hotz et al.
patent: 3978854 (1976-09-01), Mills
patent: 4147176 (1979-04-01), Christianson

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