Locking means for gas valves

Details Locking means for gas valves Locking means for gas valves

1976-05-10

1977-12-13

Foss, J. Franklin

Locks

Special application

For control and machine elements

70186, F16K 3500

Patent

active

040622088

ABSTRACT:
The present invention is a protective shroud to prevent unauthorized operation of a gas cock controlling the supply of gas used for industrial purposes or other large volume use. The device is fixed to the valve or cock by key-operated locking means coupling the valve stem to the body of the valve.

REFERENCES:
patent: 1003211 (1911-09-01), Shepard
patent: 1459688 (1923-06-01), Parkinson
patent: 1571669 (1926-02-01), Hompe
patent: 1795839 (1931-03-01), Credle
patent: 2016797 (1935-10-01), Burns et al.

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