Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1987-08-13
1990-11-20
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
12820426, 137908, B63C 1122
Patent
active
049711083
ABSTRACT:
A breathing apparatus forms a second stage of an inhalation responsive gas pressure regulator. The inhalation diaphragm is in the form of a cylinder within which an arcuate assembly is positioned, the arcuate assembly opening a valve for permitting the introduction of air from a second stage into the casing during inhalation.
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