Valve assembly and locking means therefor

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

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Details

251 93, 70178, 70179, F16K 3500

Patent

active

049269003

ABSTRACT:
A valve assembly comprising a valve having a housing and a valve element disposed in the housing and movable between closed and open positions, the valve element having a wing portion provided with an opening therein movable between a first position when the valve element is in the closed position and a second position when the valve element is in the open position, the housing having a wing portion provided with an opening therein disposed in lockable relation with the valve element wing portion when the valve element wing portion is in its first position, a rigid spacer member disposable between the housing and valve element wing portions when the valve element wing portion is in its second position, a barrel lock removably mountable in registered openings of the wing portions when the valve element wing portion is in its first position whereby the valve element will be locked in the closed position, and the rigid spacer member having a hook portion cooperable with the opening in the valve element wing portion and an opening spaced from the hook portion and registrable with the opening in the housing wing portion for removably mounting the barrel lock in the registered openings when the valve element wing portion is in its second position whereby the valve element will be locked in the open position.

REFERENCES:
patent: 932437 (1909-08-01), Brady
patent: 3865130 (1975-02-01), Mullis
patent: 3976095 (1976-08-01), Koch et al.
patent: 4498320 (1985-02-01), Mullis
"Ball Valve Locking Device", Litton, Nov. 28, 1978.

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