Apparatus for locking a valve actuating member

Details Apparatus for locking a valve actuating member Apparatus for locking a valve actuating member

1991-02-27

1992-03-10

Chambers, A. Michael

Fluid handling

With lock or seal

137382, 251 92, F16K 3500

Patent

active

050942654

ABSTRACT:
An apparatus for locking a valve actuating member of a fluid control valve may be used to lock the valve in a closed position. The apparatus is for use with a valve wherein the valve has a valve body and wherein the valve actuating member has a top surface and open and closed positions. The apparatus includes a top portion having a limiting surface for limiting upward movement of the valve actuating member relative to the valve body and gripping means extending from the top portion for gripping the valve body. The gripping means is at a fixed distance from the limiting surface such that the limiting surface is immediately adjacent the top surface of the valve actuating member when the valve actuating member is in the fully closed position and the apparatus is installed.

REFERENCES:
patent: 664462 (1900-12-01), Campbell
patent: 1387715 (1921-08-01), Hickman
patent: 1554086 (1925-09-01), Haller
patent: 1668223 (1928-05-01), Utman
patent: 1692188 (1928-11-01), Roose et al.
patent: 1708395 (1929-04-01), Muller
patent: 2838064 (1958-06-01), Schieberl
patent: 3980099 (1976-09-01), Youngblood

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