Pressure-regulating device for the second stage of reduction of

Details Pressure-regulating device for the second stage of reduction of Pressure-regulating device for the second stage of reduction of

1988-01-26

1989-05-30

Sewell, Paul T.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820418, 12820426, 12820716, A62B 902, A62B 906

Patent

active

048340863

ABSTRACT:
A floating piston member formed with an axial conduit communicating with the air-feeding conduit from the first stage of reduction of an air bottle, is provided at one end with a valve seat. The floating piston member may be displaced between a first operative position, in which it is pushed by air pressure against the seal of a valve member against the action of a spring, and a second position wherein it is separated and moved away from the seal of the valve member by the action of the spring. The valve member is controlled by the manostat diaphragm of the breathing apparatus, through a suitable transmission and is urged constantly toward the valve seat by a spring.

REFERENCES:
patent: 2596178 (1952-05-01), Seeler
patent: 4094314 (1978-06-01), Cornec

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