PRESSURE STATUS DISPLAY DEVICE

WIPO Patent Application WO/2006/137424

A1

A pressure status display device displays whether positive pressure fluid or negative pressure fluid is being supplied in a fluid channel. A fluid guiding member (17) is constructed from a coupling body (11) where a fluid channel (12) is formed and from a partition member (16) provided outside the coupling body (11), and a receiving space (19) is formed by the partition member (16) and the coupling body (11). A pressure chamber (22a) communicating with the fluid channel (12) via a communication hole (23) is formed in the receiving space (19) by a sliding seal member (21) provided in the receiving space (19). When pressure is not being supplied to the fluid channel (12) by a spring member (25), a sliding sleeve (24) is positioned at a non-supply position, and when pressure is supplied, the sliding sleeve (24) moves to a supply position. The pressure status in the fluid channel (12) can be confirmed from the outside by observing the positions of the sliding seal member (21) and the sliding sleeve (24).

JPH11304008	FLOW REGULATING VALVE
JP3213390	Connection check tool
JP2002227288	AUTOMATIC BACK FLOW CHECK VALVE FOR DRAIN PIPE

SATOH HIROSHI (JP)

PCT/JP2006/312389

December 28, 2006

June 21, 2006

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KOGANEI LTD (JP)
SATOH HIROSHI (JP)

F16L55/00; G01L7/00; G01L7/16

JP2001074762A	2001-03-23
JPH05126841A	1993-05-21
JPH02105693U	1990-08-22
JPH0285096U	1990-07-03
JP2004219335A	2004-08-05
JPH02297066A	1990-12-07

Tsutsui, Yamato (6th Floor Kokusai Chusei Kaikan, 14, Gobanch, Chiyoda-ku Tokyo 76, JP)

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