Security lock for valves

Details Security lock for valves Security lock for valves

1987-01-29

1988-11-01

Smith, Gary L.

Locks

Special application

For control and machine elements

70232, 70244, 70159, F16K 3510

Patent

active

047810440

ABSTRACT:
A security cover for valves used to control flow of liquids from storage vessels wherein a part of the cover interlocks with the valve stem and/or a connected valve actuating handle to prevent unauthorized use of the valve. The security cover further includes a secondary lock enclosure means, attached to the top of the cover means, which receives the lock lip means and padlock.

REFERENCES:
patent: 206228 (1878-07-01), Connolly
patent: 1380675 (1921-06-01), Myers
patent: 1400615 (1921-12-01), McCalmont
patent: 1550487 (1925-08-01), Barnes
patent: 1714856 (1929-05-01), Douglas
patent: 1780994 (1930-11-01), Caldwell
patent: 1944535 (1934-01-01), White
patent: 1947081 (1934-02-01), Grady et al.
patent: 1980003 (1934-11-01), Schofield
patent: 2377036 (1945-05-01), Quarfoot
patent: 3156256 (1964-11-01), Weaver
patent: 3181523 (1965-05-01), Casey
patent: 3391554 (1968-07-01), Wrenshall
patent: 3406708 (1968-10-01), Maydock
patent: 3747541 (1973-07-01), Reese
patent: 3930388 (1976-01-01), Barras
patent: 4208893 (1980-06-01), Avrich et al.
patent: 4290284 (1981-09-01), Nicksic
patent: 4300373 (1981-11-01), Camos et al.
patent: 4406358 (1983-09-01), Zahradnik
patent: 4498320 (1985-02-01), Mullis
patent: 4534379 (1985-08-01), Burge

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