Fluid handling – With repair – tapping – assembly – or disassembly means – Tapping a pipe – keg – or apertured tank under pressure
Patent
1981-12-30
1983-05-17
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Tapping a pipe, keg, or apertured tank under pressure
251216, 251291, 251319, F16K 4300, F16K 3144
Patent
active
043835481
ABSTRACT:
An evacuating-charging valve assembly consisting of a valve permanently mtable onto a fluid system such as an air conditioning system and a connecting head temporarily attachable to the valve. Two embodiments are shown, in both of which the valve has a flange portion for mounting to the fluid system, and a boss portion. Each boss portion is internally bored and threaded and has a ball-ended setscrew, with the ball against the end of a hole through the flange. In one embodiment, the setscrew has slots through its threads, and the connecting head screws into the boss. In the other embodiment, holes are bored through the boss and the connected head screws onto external threads on the boss. Both connecting heads have a setscrew wrench inside, and an external knob for rotating or linearly moving the wrench, and have passageways through them to an external hose connection. When the setscrews are unscrewed, a fluid passageway exists between the hole through the flange and the external hose connection.
REFERENCES:
patent: 586534 (1897-07-01), Pickett
patent: 1328980 (1920-01-01), Benjamin
patent: 1830894 (1931-11-01), Ullstrand et al.
patent: 1848691 (1932-03-01), Beach
patent: 3552421 (1971-01-01), Yocum
Dunn Aubrey J.
Durenec Peter
Dunn Aubrey J.
Edelberg Nathan
Lee Milton W.
The United States of America as represented by the Secretary of
Walton George L.
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