To provide a highly reliable double pipe joint which facilitates the connection between the inner pipe and outer pipe by having both of a function in which the inner pipe and the outer pipe are branched in a joint itself, and a function which connects respective mated piping thereto.
The double pipe joint consists of: a first connection part 21 on a double pipe side which is connected to the inner pipe 11 and the outer pipe 12 respectively forming the inner and outer flow paths 13, 14 of a double pipe 10; a second connection part 22 to which mated piping 16 communicating with the outer flow path 14 is connected and a flow path branch part 23 which branches the inner flow path 13 outside the outer flow path 14. The first connection part 21, the second connection part 22, and the flow path branch part 23 are integrally resin-molded so as to form a seamless joint body.
| WO/2007/018104 | LOOSENING PREVENTION DEVICE FOR PLUG |
| JP4014349 | Double pipe fitting |
| JP2005240965A | 2005-09-08 | |||
| JP2004217017A | 2004-08-05 | |||
| JP2005500486A | 2005-01-06 | |||
| JP2003130269A | 2003-05-08 | |||
| JPH0914554A | 1997-01-17 | |||
| JPH04131589A | 1992-05-06 | |||
| JPH0642015A | 1994-02-15 | |||
| JPH0450784U | 1992-04-28 | |||
| JPH071390U | 1995-01-10 | |||
| JP2004245393A | 2004-09-02 | |||
| JPS59108063U | 1984-07-20 | |||
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| JP2005500486A | 2005-01-06 | |||
| JP2001208271A | 2001-08-03 | |||
| JPH04131589A | 1992-05-06 | |||
| JPH0450784U | 1992-04-28 | |||
| JPH071390U | 1995-01-10 |
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma