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Patent Searching and Data


Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2003/078884
Kind Code:
A1
Abstract:
An annular recess portion (7) is provided in an end face of a synthetic resin-made first joint member (2) and an annular projection portion (8) is provided on an end face of a synthetic resin-made second joint member (3). The projection portion (8) is fitted into an opening portion of the recess portion (7) into which a synthetic resin-made gasket (4) is fitted. When a pipe joint(1) is tightened adequately, the inner face of the recess portion (7) of the first joint member (2) and the outer face of the projection portion (8) of the second joint member (3) are in close contact with each other over substantially the entire surface through the gasket (4), a portion (2d) located radially inside the recess portion in the end face of the first joint member (2) and a portion (3d) located radially inside the projection portion on the end face of the second joint member (3) are in close contact with each other over substantially the entire surface area, and a portion (2e) located radially outside the recess portion in the end face of the first joint member (2) and a portion (3e) located radially outside the projection portion on the end face of the second joint member (3) are also in contact with each other over substantially the entire surface area.

Inventors:
SUGIYAMA KAZUHIKO (JP)
HADA KEIKO (JP)
IDETA EIJI (JP)
IKEDA NOBUKAZU (JP)
YASUMOTO NAOFUMI (JP)
YAMAJI MICHIO (JP)
Application Number:
PCT/JP2003/003293
Publication Date:
September 25, 2003
Filing Date:
March 19, 2003
Export Citation:
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Assignee:
TOKYO ELECTRON LTD (JP)
FUJIKIN KK (JP)
SUGIYAMA KAZUHIKO (JP)
HADA KEIKO (JP)
IDETA EIJI (JP)
IKEDA NOBUKAZU (JP)
YASUMOTO NAOFUMI (JP)
YAMAJI MICHIO (JP)
International Classes:
F16L19/02; F16L19/025; F16L19/08; F16L19/03; F16L23/036; F16L47/14; (IPC1-7): F16L23/02; F16L19/03
Foreign References:
JPH08128574A1996-05-21
JPH04102791A1992-04-03
JPH01158887U1989-11-02
JPS57112162U1982-07-10
JPH0431801U1992-03-16
JPH0653886U1994-07-22
JPS62106091U1987-07-07
JPH06241362A1994-08-30
JPH08100875A1996-04-16
JPH0198393U1989-06-30
Other References:
See also references of EP 1486715A4
Attorney, Agent or Firm:
Hibi, Norihiko c/o Kishimoto & Co. (3rd Floor Inaba Building, 13-18, Nishishinsaibashi 1-chome, Chuo-k, Osaka-shi Osaka, JP)
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