Fluid handling – With lock or seal – Locks against rotary motion
Patent
1997-01-31
1998-09-15
Chambers, A. Michael
Fluid handling
With lock or seal
Locks against rotary motion
70178, 70180, F16K 3500
Patent
active
058065555
ABSTRACT:
A locking device for use on valves such as ball valves having a body and a rotatable handle on the body comprises a first body half, a second body half, and a hinge pivotally connecting the first and second body halves together such that the locking device is positionable in open and closed positions on the valve. A body opening is formed in the first and second body halves to receive the valve body in the closed position. First and second handle openings are formed in the first and second body halves to receive the valve handle, and substantially prevent the handle from being rotated, in respective first and second positions of the handle. The handle is externally visible in both positions. A locking mechanism is provided on the first and second body halves to retain the locking device in the closed position. A lock can be used to prevent the locking device from being removed from the valve without permanently damaging the locking device.
REFERENCES:
patent: 7587 (1850-04-01), Hall
patent: 566932 (1896-09-01), Patrick
patent: 674582 (1901-05-01), Lewy
patent: 725290 (1903-04-01), Speer
patent: 812021 (1906-02-01), Dahl
patent: 994409 (1911-06-01), Kelly
patent: 999983 (1911-08-01), Gardner
patent: 1158631 (1915-11-01), Caldwell
patent: 1683649 (1928-09-01), Belote
patent: 3112636 (1963-12-01), McIntyre
patent: 3156256 (1964-11-01), Weaver
patent: 3284121 (1966-11-01), Lyon
patent: 3572063 (1971-03-01), Foote
patent: 3960168 (1976-06-01), Plympton
patent: 3980099 (1976-09-01), Youngblood
patent: 4300373 (1981-11-01), Camos et al.
patent: 4982985 (1991-01-01), Atlas
patent: 5058622 (1991-10-01), Chitty, Jr. et al.
patent: 5092359 (1992-03-01), Wirth et al.
patent: 5412962 (1995-05-01), Thompson
Chambers A. Michael
Spears Manfacturing Co.
LandOfFree
Locking device for valves does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Locking device for valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Locking device for valves will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-78516