F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/4.4
F16K 17/00 (2006.01) F16K 17/40 (2006.01)
Patent
CA 2001222
Abstract of the Disclosure A safety valve device for a compression gas cylinder to shut off gas flow at the tank port of the cylinder when downstream gas flow control apparatus is structurally disrupted is set forth which includes a housing having a conduit therethrough for the passage of gas where the housing is adapted for fitting into the tank port of the cylinder. A poppet seat is located in the conduit and is in a fixed position relative to the tank port. A poppet which passes through the poppet seat is adapted to close the conduit when the poppet bears against the poppet seat. A helical spring is used to bias the poppet to bear against the poppet seat such that the conduit would be normally closed. However, a frangible set-off columnar member is compressively disposed between the poppet and the gas control apparatus such that structural disruption of the gas control apparatus will cause the frangible set-off member to break thereby closing the conduit and preventing gas flow from the compression gas cylinder.
Smart & Biggar
Whalen Paul S.
LandOfFree
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