Manually actuated fluid flow control valve and method of making

Details Manually actuated fluid flow control valve and method of making Manually actuated fluid flow control valve and method of making

1985-05-14

1987-07-07

Michalsky, Gerald A.

Valves and valve actuation

With means for blocking or disabling actuator

Latch manipulator mounted on handle or stem

251101, 251109, 251144, F16K 3502

Patent

active

046781595

ABSTRACT:
A manually actuated fluid flow control valve assembly and method of making same are provided wherein the valve assembly has an associated support structure and has a manually operated handle operatively connected to a closure device for the valve assembly and the handle is manually movable between an open and closed position thereof which define corresponding open and closed positions of the closure device and wherein the valve assembly has a manually releasable means which includes automatic lock means for automatically locking the handle once the handle and its closure device are in a closed position. In accordance with another embodiment of this invention an improved manually operated handle is provided for such valve assembly, and such handle has a weakened portion which assures easy shearing thereof under certain conditions.

REFERENCES:
patent: 1004388 (1911-09-01), Dickert
patent: 1323661 (1919-12-01), Urton
patent: 2127225 (1938-08-01), Jensen
patent: 2208850 (1940-07-01), Mayer
patent: 4016907 (1977-04-01), Rawstron
patent: 4018292 (1977-04-01), Roll et al.
patent: 4394002 (1983-07-01), Polley

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