Valve with lock-out mechanism and method of using the same

Details Valve with lock-out mechanism and method of using the same Valve with lock-out mechanism and method of using the same

2006-08-01

2006-08-01

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

With means for blocking or disabling actuator

Latch manipulator mounted on handle or stem

C251S107000, C251S089000

Reexamination Certificate

active

07083157

ABSTRACT:
A valve assembly includes a valve body having a fluid chamber and a fluid inlet and fluid outlet. A poppet assembly is movably disposed within the chamber and includes a poppet head. The chamber includes a valve seat and is interposed between the fluid inlet and outlet. An actuator is attached to the poppet assembly. A lock-out mechanism is connected with the actuator for placing the valve into a closed position with the poppet head positioned against the valve seat. The lock-out mechanism includes a shaft member that is movably attached to the valve apparatus. When the shaft member is in a first position, the actuator is permitted to cause desired poppet assembly movement with the valve. When the shaft member is in a second position, the actuator and poppet assembly position within the valve is fixed with the poppet head seated against the valve seat.

REFERENCES:
patent: 2325802 (1943-08-01), Schmidt et al.
patent: 3516432 (1970-06-01), Preising

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