Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1997-10-01
1999-07-27
Chambers, A. Michael
Fluid handling
Processes
Cleaning, repairing, or assembling
137382, 220724, F16K 3500
Patent
active
059273135
ABSTRACT:
A valve locking device has a rigid covering member with an axial bore extending inside it. The bottom of the covering member has an annular skirt, and an annular groove is formed in the interior wall of the skirt. A resilient retaining ring with opposite terminal ends resides in the groove. The groove has a diameter greater than the outer diameter of the retaining ring so that the ring can be expanded radially within the groove to the extent that the interior diameter of the retaining ring is larger than the diameter of the axial bore. The skirt portion of the covering member has a cut out for accessing the terminal ends of the retaining ring with retaining ring pliers. The terminal ends of the ring have bores for receiving tines on the pliers.
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Chambers A. Michael
Coryea Paul
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