Locks – Special application – For control and machine elements
Patent
1994-08-01
1995-05-16
Cuomo, Peter M.
Locks
Special application
For control and machine elements
70180, 70203, 70212, 137385, F16K 3510
Patent
active
054150175
ABSTRACT:
A valve lock has a body and a moveable jaw for releasably gripping a lever handle of the valve against the body. The jaw has a threaded shaft that extends through a hole in the body, and a locking cleat is slidable on the threaded shaft. An arm is attached to the shaft between the body and the locking cleat, and is rotatable about the shaft to abut either the valve or a pipe connected to the valve. A hand wheel is threaded onto the shaft and can be tightened against the locking cleat which then forces the arm against the body to inhibit rotation of the arm about the shaft. The locking cleat has an aperture for receiving the shackle of a padlock, and the hand wheel has a plurality of notches in an exterior surface with one of the notches receiving the shackle to restrict movement of the wheel along the shaft.
REFERENCES:
patent: 1057609 (1913-04-01), Young
patent: 1550487 (1925-08-01), Barnes
patent: 1590032 (1926-06-01), Jauch
patent: 1627082 (1927-05-01), Fisher
patent: 1631831 (1927-06-01), Palmer-Jones
patent: 3613410 (1971-10-01), Shaw
patent: 5003797 (1991-04-01), Wirth et al.
patent: 5092359 (1992-03-01), Wirth et al.
patent: 5215112 (1993-06-01), Davison
Contromatics Brand, Ball Valve Locking Device Catalog, Nov. 28, 1978.
Benda Steven J.
Page Daniel A.
Pearson John P.
Brady USA, Inc.
Cuomo Peter M.
Estremsky Gary
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