Gas pin valve with safety features
OwnerThomas Siimesinventor
Life of this patent
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Abstract
A pin valve assembly includes a discharge opening and groove within a threaded body portion providing for the escape of pressurized gases contained within a cylinder prior to the pin valve becoming unthreaded from the cylinder. The valve includes a threaded portion that is assembled and threaded into the cylinder. The threaded portion includes a discharge opening and a groove. As the pin valve is unthreaded, the groove and discharge opening communicate pressurized material against a seal. Once a pressure on the seal is reduced to a desired level, gas is communicated from the cylinder and exhausted past the seal.
Claims16
A gas cylinder assembly comprising:
- a gas cylinder defining a chamber for storing a pressurized substance;
- and
- a valve assembly attached to the gas cylinder for regulating release of the pressurized substance through an outlet, said valve assembly including a threaded portion engaged to the gas cylinder and discharge opening within the threaded portion for exhausting the pressure substance from the chamber responsive to movement of the valve assembly toward a partial removal of the valve assembly from the gas cylinder.
A valve assembly comprising:
- a housing defining a first bore comprising an inlet and an outlet;
- a piston movable within said bore between a closed position blocking the outlet and an open position not blocking the outlet;
- a threaded portion for fastening said housing to a pressure vessel;
- and
- a discharge opening disposed within said threaded portion for exhausting pressurized material from said pressure vessel responsive to a partial unthreading of the valve assembly from the pressure vessel.
Dependencies are inferred from the claim text.