Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1975-05-05
1976-08-10
Rosenthal, Arnold
Fluid handling
Line condition change responsive valves
Direct response valves
251 82, 251323, F16K 2402, F16K 1518, F16K 1702
Patent
active
039735885
ABSTRACT:
An air outlet valve for a diving apparatus includes a housing having an inlet and an outlet spaced from the inlet with a flow passage between the outlet and inlet having interior annular valve seat defined across the flow path. An axially extending actuation member is journalled in the housing for axial displacement and it includes an outside knob portion at one end and an inside knob portion at the opposite end which may be engaged for moving the actuation member. A flexible diaphragm which has an annular sealing rim portion which engages on the valve seat is secured at its central portion to a shaft portion of the actuation member and the sealing rim portion is engageable on the valve seat to close the flow passage. A pressure disk which has one or more openings therethrough is secured centrally to the shaft portion directly adjacent and on the outlet side of the diaphragm and it is biased by a spring in a direction toward the valve seat and urges the valve seat and presses the periphery of the diaphragm on the valve seat to close the passage.
REFERENCES:
patent: 161002 (1875-03-01), Brown
patent: 1385058 (1921-07-01), Warter
patent: 2322521 (1943-06-01), Jenkins
patent: 2548374 (1951-04-01), Janson
Dragerwerk Aktiengesellschaft
Rosenthal Arnold
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