Locks – Special application – For control and machine elements
Patent
1997-04-07
1998-08-25
Gall, Lloyd A.
Locks
Special application
For control and machine elements
70180, 70212, 70232, 70DIG57, 137385, 251112, F16K 3510
Patent
active
057972850
ABSTRACT:
A locking device for a valve having a rotatable shaft including a stop plate, and a stop secured to a housing, including a hollow body having a first chamber for receiving the shaft, a threaded aperture extending into the first chamber for receiving a screw, a second chamber surrounding the screw, a lockable closure preventing access to the screw, and a tab coupled to the hollow body adapted to be received between the stop plate and the stop.
REFERENCES:
patent: 209181 (1878-10-01), Miller
patent: 1099280 (1914-06-01), Connolly
patent: 1231164 (1917-06-01), Jahns et al.
patent: 1934327 (1933-11-01), Ridder
patent: 1993784 (1935-03-01), Henderson
patent: 2979076 (1961-04-01), Kish
patent: 4444031 (1984-04-01), Watson
patent: 5058622 (1991-10-01), Chitty, Jr. et al.
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