Leakproof dual action fluid transfer valve

Details Leakproof dual action fluid transfer valve Leakproof dual action fluid transfer valve

1995-02-07

1996-08-20

Lee, Kevin

Fluid handling

Systems

Flow path with serial valves and/or closures

13761421, F16L 2900

Patent

active

055469868

ABSTRACT:
A leakproof dual action valve which is operated by its relative state of engagement and disengagement to a complementary, mating spring-actuated valve connected to a fluid supply. The dual action valve has a sleeve member, a piston carrier portion, a piston body, and a valve. As the sleeve member of the dual action valve is screwed onto the mating spring actuated valve, the piston body simultaneously pushes open both the dual action valve and the spring actuated valve. When the sleeve member is unscrewed from the mating spring actuated valve, both valves close, thereby preventing and leakage of fluid. The dual action valve is adapted to connect to a vacuum hose, which will evacuate any fluid from the fluid supply.

REFERENCES:
patent: 2218318 (1940-10-01), Pfauser
patent: 2518299 (1950-08-01), Fernandez
patent: 3574314 (1971-04-01), Quercia
patent: 4509554 (1985-04-01), Failla

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