Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1976-10-26
1978-04-18
Schwadron, Martin P.
Fluid handling
Destructible or deformable element controlled
Destructible element
2771675, 285336, 285351, 285DIG18, F16K 1740
Patent
active
040846024
ABSTRACT:
Valve apparatus is disclosed for discharging pressurized fire extinguisher fluid from a container. A valve housing includes a valve body and manifold between which a diaphragm which is removably mounted to facilitate field replacement. The diaphragm comprises a semi-spherical shell which is mounted across a passage in the housing with a concave side of the shell facing the pressurized fluid. The shell is fabricated of a metal which is pre-stressed so that the diaphragm ruptures above a predetermined fluid pressure for relieving over-pressure from the container. A dual seal is formed about the rim of the diaphragm by means of an O-ring and an annular knife edge which are disposed within a recess of the manifold body. The valve body and manifold are secured together in metal-to-metal contact at their interface to prevent leaking. A squib cartridge is mounted in the housing to rupture the diaphragm and permit the fluid to discharge through the passage. A screen is mounted in the passage to screen out fragments of the ruptured diaphragm from the flow stream.
REFERENCES:
patent: 1951897 (1934-03-01), Binckley
patent: 2408774 (1946-10-01), Goddard et al.
patent: 2417082 (1947-03-01), Mapes et al.
patent: 3208758 (1965-09-01), Carlson et al.
patent: 3467120 (1969-09-01), Hill et al.
patent: 3693691 (1972-09-01), Summers
patent: 3762479 (1973-10-01), Fike et al.
Gerard Richard
Schwadron Martin P.
Systron-Donner Corporation
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