Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1996-08-23
1999-09-28
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
62 77, 62292, 62298, 137315, 137319, 251215, 251216, F16K 4300, F16K 504, F25B 4500, F25B 4900
Patent
active
059571470
ABSTRACT:
After removal of a valve cap from an in line shut off valve the Retaining Snap Ring Adapter with male threads and seat at one end, female threads and seat at the other end, a hex outer surface at the female threaded end, a longitudinal passageway down its center, is designed to be permanently installed on an in line shut off valve having a threaded moveable plug (operator) and said Adapter will not interfere with the moveable operator which opens and closes the valve when turned by a hexagonal wrench. The Retaining Ring Adapter prevents an improperly back seated operator from being ejected as a deadly missile by the normal operating pressures.
The Retaining Snap Ring Adapter having been permanently installed on the valve, the cap is returned to the valve but is now screwed onto the added Retaining Snap Ring Adapter which is essentially now part of the valve.
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Parker Type Shut Off Service Valve Fig 11 Aero Quip Type Shut Off Service Valve Fig 13.
And/or Other Shut Off Service Valves.
Pugh C. Emmett
Walton George L.
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