Breathing apparatus flow device

Details Breathing apparatus flow device Breathing apparatus flow device

1979-01-19

1980-11-04

Recla, Henry J.

Surgery

Respiratory method or device

Gas produced by electrolysis or chemical reaction

12820528, 222 835, 285302, 285133R, 277194, 277201, 277152, 277165, A62B 700

Patent

active

042313619

ABSTRACT:
A breathing apparatus flow device has a hollow housing with a bottom opening to receive the upper end of a chemical canister neck, a side opening for connection to a breathing bag, and a top opening for connection to an exhalation tube. Slidably mounted in rigid downwardly extending tubular means in the housing is a hollow open end plunger that extends below the housing and is urged downwardly by a coil spring. A cylindrical resilient seal encircles the lower portion of the tubular means in engagement therewith and extends below it and inwardly into engagement with the plunger to seal the space between the tubular means and the plunger.

REFERENCES:
patent: 2710003 (1955-06-01), Hamilton et al.
patent: 3399548 (1968-09-01), Burns

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