Fluid handling – Systems – Flow path with serial valves and/or closures
Reexamination Certificate
2006-11-07
2006-11-07
Lee, Kevin (Department: 3753)
Fluid handling
Systems
Flow path with serial valves and/or closures
C137S614050
Reexamination Certificate
active
07131458
ABSTRACT:
A pipe coupling is configured such that when a male coupling member and a female coupling member are to be connected with each other, a valve disposed in the female coupling member is partly inserted into the male coupling member so as to come into press-contact with the valve in the male coupling member, and to cause displacement of the valves, to thereby open a fluid passage in the pipe coupling. An O-ring is provided on the interior surface of the male coupling member. A sleeve is arranged in a female coupling member such that a forward end portion of the sleeve is inserted into the male coupling member in such a manner that the outer surface of the forward end portion of the sleeve sealingly engages with the O-ring, while allowing the valves of the male and female coupling members abut against each other within the forward end portion of the sleeve.
REFERENCES:
patent: 3279497 (1966-10-01), Norton et al.
patent: 4473211 (1984-09-01), Fremy
patent: 2005/0087240 (2005-04-01), Kohda
patent: 2005/0087241 (2005-04-01), Kohda
patent: S58-160692 (1983-09-01), None
patent: 2004-211739 (2004-07-01), None
Brinks Hofer Gilson & Lione
Lee Kevin
Nitto Kohki Co. Ltd.
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