Rapid acting two stage pyrotechnic valve for fixed fire extingui

Details Rapid acting two stage pyrotechnic valve for fixed fire extingui Rapid acting two stage pyrotechnic valve for fixed fire extingui

1982-10-08

1984-10-16

Love, John J.

Fire extinguishers

Automatic receptacles

A62C 3502

Patent

active

044769377

ABSTRACT:
A pilot-actuated valve for controlling outflow of pressurized fire-supprent fluid from a thick-walled container. The valve includes a stepped piston that is disposed in an internally stepped housing. To effect a discharge cycle an annular pressurizable chamber is vented to reduce the pressure on one face of the piston, thereby enabling unbalanced pressure forces to rapidly move the piston toward a flow-control diaphragm; an annular cutter on the leading end of the piston ruptures the diaphragm to permit outflow of pressurized fire suppressant. The valve is characterized by leak-free operation during standby periods, and rapid fluid discharge during the actuation cycle.

REFERENCES:
patent: 1945715 (1931-01-01), Wiswell
patent: 2799466 (1957-07-01), Hickerson
patent: 3905575 (1975-09-01), Zeuner et al.
patent: 4046156 (1977-09-01), Cook
patent: 4090688 (1978-05-01), Workman
patent: 4245660 (1981-01-01), Rozniecki

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