US 7,566,045 B2
Hydraulic coupler
David June, Houston, Tex. (US)
Assigned to Cameron International Corporation, Houston, Tex. (US)
Filed on Mar. 20, 2003, as Appl. No. 10/393,422.
Prior Publication US 2004/0186420 A1, Sep. 23, 2004
Int. Cl. F16K 51/00 (2006.01); F16L 37/28 (2006.01); F16L 29/00 (2006.01)
U.S. Cl. 251—149.6  [137/625.48; 137/882; 251/149.1] 17 Claims
OG exemplary drawing
 
1. A hydraulic coupler comprising:
a body having a first fluid supply port and a fluid return port in hydraulic communication;
a selector disposed within said body and having a first position allowing hydraulic communication between the first fluid supply port and the fluid return port;
a receptacle releasably connected to said body and providing one or more fluid conduits allowing fluid pressure to bias said selector into the first position; and
a stab having a second fluid supply port therethrough and adapted to mechanically shift said selector to a second position providing hydraulic communication between the second fluid supply port, the one or more fluid conduits, and the fluid return port and preventing hydraulic communication between the first fluid supply port and the fluid return port.