F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/65
F16K 17/04 (2006.01) F16K 17/30 (2006.01)
Patent
CA 1220403
GAS FUSE ABSTRACT OF THE DISCLOSURE A gas safety valve is provided which has a valve chamber within a housing, and a gas inlet and outlet respectively communicating with an inlet and outlet end of the valve chamber. Valve means are disposed in the valve chamber for allowing gas to flow from the inlet to the outlet when the valve means is in an open position, and preventing qas flow when the valve means is in a closed position at either end of the valve chamber. The valve means may comprise a piston having a tortuous gas transmitting opening therein, the resist- ance to gas flow caused by the tortuous opening render- ing the valve means responsive to slight variations in . gas pressure differential between the inlet and the outlet. Resilient means are provided which extend between the outlet and the valve means. The resilient means urge the valve means into the open position, and allow it to reversibly move to a closed position against the outlet when the pressure differential between the inlet and outlet of the valve chamber becomes suffi- ciently high to overcome the resistance of the resilient means .
454318
Oyen Wiggs Green & Mutala Llp
Tepsa Brian
LandOfFree
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