Dual path hydraulic coupling

Fluid handling – Systems – Flow path with serial valves and/or closures

Reexamination Certificate

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Details

C137S614040, C137S614050, C137S628000, C251S149600

Reexamination Certificate

active

11273217

ABSTRACT:
A female hydraulic coupling member is disclosed which comprises a first flow port; a second flow port; a third flow port in fluid communication with both the first flow port and the second flow port; a first poppet valve for opening and closing the first flow port; and a second poppet valve for opening and closing the second flow port, the second poppet valve being connected to the first poppet valve such that the second poppet valve moves to the closed position when the first poppet valve is open and moves to the open position when the first poppet valve is closed.

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patent: WO 99/49247 (1999-09-01), None
Combined Search and Examination Report received in co-pending European Patent Application No. GB0523353.1 dated Feb. 9, 2006.

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