Coupling and decoupling assembly of pipe having double valve

Details Coupling and decoupling assembly of pipe having double valve Coupling and decoupling assembly of pipe having double valve

2011-06-28

2011-06-28

Hepperle, Stephen M (Department: 3753)

Fluid handling

Systems

Flow path with serial valves and/or closures

C137S614060, C251S149200, C251S149300, C251S149400

Reexamination Certificate

active

07967026

ABSTRACT:
A coupling/decoupling assembly of a pipe which can selectively open/close a flow channel of the pipe is provided. In the coupling/decoupling assembly of the pipe, a first valve and a second valve are respectively joined with each end of a first pipe and a second pipe. A first driving axis and a second driving axis are respectively joined with each end of the first valve and the second valve. An outer surface and an inner surface of the first and second valves are formed in a spherical body, and the inner surface of the first valve and the outer surface of the second valve are overlapped with each other to close the flow channel of the pipe, and the inner surface of the first valve and the outer surface of the second valve having an identical radius of a curvature.

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Japanese Office Action, dated Mar. 1, 2010 and English translation, for corresponding Japanese Patent Application No. 2007-147582.

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