Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1992-06-11
1995-04-11
Schwadron, Martin P.
Fluid handling
Systems
Flow path with serial valves and/or closures
2511499, 137797, 62 507, F16L 3728
Patent
active
054049091
ABSTRACT:
A coupling device 10 includes a nozzle 11 and a receptacle 12. The receptacle 12 includes a poppet assembly 35 that is biased by a spring 41 to a closed position. The receptacle 12 also includes an interface sealing surface 31. The nozzle 11 includes a nozzle valve 75 having a poppet 76 and a valve seat 79. The nozzle 11 also includes an interface seal assembly 85 movable between opened and closed positions relative to the receptacle interface sealing surface 31. The valve seat 79 and the interface seal assembly 85 are both carried on a movable carrier 88, and an actuator assembly 95 is operably connected to effect movement of the poppet 76, the valve seat 79 and the interface seal assembly 85. The actuator assembly 95 holds the interface seal assembly 85 opened during coupling and uncoupling of the nozzle 11 and receptacle 12 and closed during opening and closing of the nozzle valve 75 and receptacle poppet assembly 35. A collar 48 locks the receptacle 12 to the nozzle 11. Frangible fasteners 52 break to permit separation of the receptacle 12 from the nozzle 11 under defined conditions, and the carrier 88 moves the valve seat 79 to engage the poppet 76 and close the nozzle valve 75 under such conditions.
REFERENCES:
patent: 3472482 (1969-10-01), Gardner
patent: 3664634 (1972-05-01), Guertin et al.
patent: 3897091 (1975-07-01), McMath et al.
patent: 4030524 (1977-06-01), McMath et al.
patent: 4567924 (1986-02-01), Brown
Lee Kevin L.
Parker-Hannifin Corporation
Schwadron Martin P.
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