Securing system for automatically operated valve systems

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

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Details

137 15, 251 91, 25112904, F16K 3500

Patent

active

049111981

ABSTRACT:
The securing system includes a device and a method for securing a valve assembly in either an open or closed operational position. The automatically operated valve assembly opens and closes a transmission line to flow upon rotation of a rotatable shaft member. The valve assembly is connected to receive remotely transmitted control signals for operating the rotatable shaft member. A flattened circumferential section is located on the rotatable shaft and a locking clip member includes a flattened surface section. The shaft member is externally accessible by the manually operated locking clip which fits around the rotatable shaft in a stationary locking position where the flattened circumferential section is contiguously disposed against the flattened surface section of the locking clip element. An anchoring mechanism secures the locking clip element in the stationary locking position so that the rotation of the shaft member is prevented. Thus, any remotely transmitted control signals designed to operate the valve assembly are overridden by the locking clip element to prohibit opening or closing of the transmission line to flow.

REFERENCES:
patent: 28495 (1818-01-01), Wilson
patent: 665133 (1901-01-01), Riggs
patent: 812021 (1906-02-01), Dahl
patent: 1322721 (1919-11-01), Noonan
patent: 1444899 (1923-02-01), Authier
patent: 1793926 (1931-02-01), Green
patent: 2072314 (1937-03-01), Rhodes
patent: 3333160 (1967-07-01), Gorski

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