Standard on-off, or lockable for self-locking in off position na

Fluid handling – With lock or seal – Locks against rotary motion

Patent

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Details

137383, 251297, F16K 3500

Patent

active

054311845

ABSTRACT:
This patent application describes a lockable valve locking valve, which when a suitable lock is placed on the lock structure on the outer housing of this valve, eliminates further motion of the valves inner plug once this valve has been turned to off from the on position while the lock is on the outer structure of this valve. This valve cannot be turned back on after disruption of services unless the lock has been removed. However, this valve can be turned on and back to an off position continually if so desired. By omission of the lock on the outer body this valve will give continuous pivotal operation of it inner plug through one-quarter turn arcs in a clockwise and then counter-clockwise motion. This will allow a utility company supplying natural gas a choice as to when they want a valve locking if services are disrupted or not. Included also within the attributes of this valve are its ability to allow a gas system to be quickly tested for leaks without disassembling and piping connections made into one a tap with threads. Here a test gauge can be inserted without disconnecting any piping. There is a possibility fuel can be saved because of this easy method of checking gas systems.

REFERENCES:
patent: 443885 (1890-12-01), Weil
patent: 448702 (1891-03-01), Wilson
patent: 1264019 (1918-04-01), Craig
patent: 1949926 (1934-03-01), Causey
patent: 3333812 (1967-08-01), Mueller
patent: 3540468 (1970-11-01), Finck, Jr.

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