Lock for a valve

Details Lock for a valve Lock for a valve

1985-06-03

1988-11-01

Schwadron, Martin P.

Fluid handling

With lock or seal

251 89, 70189, F16K 3500

Patent

active

047812117

ABSTRACT:
A valve lock comprising a valve stem, a valve actuator stem axially alined therewith, square ends on the stems, a barrel clutch with a square interior selectively connecting or disconnecting the square ends of the stems, and a key to actuate the clutch barrel.

REFERENCES:
patent: 1552586 (1925-09-01), Vanderlip
patent: 2881789 (1959-04-01), Finazzo
patent: 3080031 (1963-03-01), Young
patent: 3515250 (1970-06-01), Cantalupo
patent: 3763979 (1973-10-01), Goodman et al.
patent: 4390038 (1983-06-01), Salvato

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