Valves and valve actuation – With means for blocking or disabling actuator – Latch manipulator mounted on handle or stem
Patent
1995-06-30
1997-09-16
Ferensic, Denise L.
Valves and valve actuation
With means for blocking or disabling actuator
Latch manipulator mounted on handle or stem
251110, 251243, 251224, 251 78, 266 48, F16K 3500
Patent
active
056671938
ABSTRACT:
A safety shut-off device is disclosed. The device is adapted for use with a gas welding apparatus, the apparatus having a torch handle and a supply of a pressurized combustion reagent. The safety shut-off device has a valving assembly that is adapted to be positioned between the torch handle and the supply of pressurized combustion reagent. The valving assembly is actuatable between a first state and a second state. In the first state, the torch handle is operatively connected to the supply of pressurized combustion reagent. In the second state, the handle is operatively disconnected from the supply of pressurized combustion reagent. The valving assembly is biased towards the second state and actuatable from the first state to the second state substantially instantaneously. The safety shut-off device also has an actuating mechanism. At least a portion of the actuating mechanism is adapted to be positioned on the handle for being grasped by the user of the gas welding apparatus when the user grasps the handle. The portion of the actuating mechanism is also for being moved toward the torch handle. The actuating mechanism is operatively connected to the valving assembly for actuating the valving assembly from the second state to the first state only when the handle and the portion of the actuating mechanism are grasped by the user and moved towards one another.
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Ferensic Denise L.
Kim Joanne Y.
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