Valves and valve actuation – With correlated flow path – Pipe coupling or union
Patent
1996-09-16
1998-07-07
Lee, Kevin
Valves and valve actuation
With correlated flow path
Pipe coupling or union
285187, 2853811, F16L 2900
Patent
active
057756686
ABSTRACT:
A connecting yoke apparatus is disclosed for attachment to a valve of a compressed gas cylinder. The apparatus includes a yoke member having a first and a second end, the yoke member defining an opening for the reception therein of the valve. A connection extends through the first end of the yoke member for selective connection with the valve. The connection selectively cooperates in fluid tight communication with the valve when the valve is disposed within the opening. A piston is slidably disposed within the yoke member for selectively urging the valve and the connection towards each other such that when the piston is in an operative disposition thereof, the fluid tight communication between the connection and the valve is generated and when the piston is in an inoperative disposition thereof, disengagement of the yoke member from the valve is permitted. A heat sensitive expansion compensation adjuster is disposed between the second end of the yoke member and the piston for adjusting the operative disposition of the piston. The arrangement is such that when the temperature of the apparatus increases, the expansion compensation adjuster progressively moves the piston for urging the valve and the connection towards each other for maintaining the fluid tight communication. A driver cooperates with the piston for driving the piston between the inoperative and operative dispositions thereof.
REFERENCES:
patent: 4036468 (1977-07-01), Webb
patent: 4170556 (1979-10-01), Pall
patent: 4907749 (1990-03-01), Bennett et al.
patent: 5312084 (1994-05-01), Weh
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