Release apparatus for pneumatic valve operator and method

Details Release apparatus for pneumatic valve operator and method Release apparatus for pneumatic valve operator and method

1994-09-26

1996-01-02

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

251 91, 251 95, 251113, F16K 3500

Patent

active

054799562

ABSTRACT:
A release mechanism for permitting the operation of a pneumatic valve includes a ring (A) extending about a cylindrical hand held housing for manual manipulation to move a blocking member (B) from beneath a depressible valve operator (D) and is provided with resilient means (C) normally biasing the blocking member (B) towards a blocking position beneath the handle (D) but which may be moved by manual manipulation of the ring against the force of resilient means (C) which automatically returns the blocking member to blocking position after the handle is moved for actuating the pneumatic valve and the like for operating the hand held mechanism.

REFERENCES:
patent: 726206 (1903-04-01), Whiteley
patent: 813110 (1906-02-01), Norling
patent: 1027061 (1912-05-01), Norling
patent: 1040343 (1912-10-01), Johnston
patent: 1131794 (1915-03-01), Rhodes
patent: 2109511 (1938-03-01), Simon
patent: 2618459 (1952-11-01), Forss
patent: 2620195 (1952-12-01), Gillerstrom
patent: 3323346 (1967-06-01), Spangler et al.
patent: 4619435 (1986-10-01), Biek

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