Signals and indicators – Indicators – Fluid flow
Reexamination Certificate
2011-06-07
2011-06-07
Smith, R. A. (Department: 2841)
Signals and indicators
Indicators
Fluid flow
C116S264000, C073S744000
Reexamination Certificate
active
07954445
ABSTRACT:
A pressure state indicator indicates whether or not positive pressure fluid or negative pressure fluid is supplied to a fluid path. A fluid guide member17is constituted of a joint main body11in which a fluid path12is formed and a partition member16provided outside the joint main body11, and an accommodation space19is formed by the partition member16and the joint main body11. A pressure chamber22acommunicating with the fluid path12through a communicating hole23is formed in the accommodation space19by a sliding sealing member21provided in the accommodation space19. The sliding sleeve24is located at a non-supply position by a spring member25when no pressure is supplied to the fluid path12, and the sliding sleeve24is moved to a supply position when pressure is supplied thereto. A pressure state in the fluid path12is externally confirmed by observing positions of the sliding sealing member21and the sliding sleeve24from outside.
REFERENCES:
patent: 1038803 (1912-09-01), Vaughan
patent: 3386410 (1968-06-01), Barnes, Jr.
patent: 4072048 (1978-02-01), Arvan
patent: 4136560 (1979-01-01), Gellos
patent: 4986128 (1991-01-01), Burns
patent: 6164139 (2000-12-01), Krimmer
patent: 2-85096 (1990-07-01), None
patent: 7-22000 (1990-07-01), None
patent: 2-105693 (1990-08-01), None
patent: 2-297066 (1990-12-01), None
patent: 5-126841 (1993-05-01), None
patent: 2001-74762 (2001-03-01), None
patent: 2004-219335 (2004-08-01), None
Corresponding Taiwanese Office Action issued on Oct. 5, 2007.
Korean Office Action dated Jun. 26, 2008 of corresponding Korean patent application.
International Search Report for PCT/JP2006/312389, dated Sep. 19, 2006.
Courson Tania C
Koganei Corporation
McCormick Paulding & Huber LLP
Smith R. A.
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