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Patent Searching and Data


Title:
CONNECTING STRUCTURE FOR PRESSURE PIPING
Document Type and Number:
WIPO Patent Application WO/2012/096042
Kind Code:
A1
Abstract:
The present invention addresses the problem of connecting pressure piping in a fluid-tight manner on-site without requiring welding. Multiple penetrating holes (h1) are provided in a cylindrical sleeve (1a) at separate locations in the lengthwise direction, and with identical angular intervals and without overlapping in the circumferential direction. Non-penetrating holes (h2) in which screw threads have been formed are provided in pressure piping (P1, P2) at locations corresponding to the holes (h1). An insert (2a) is provided with a pair of opposing annular faces (b1, b2), and annular ring grooves (b11, b21) are formed respectively in the annular faces (b1, b2) to house O-rings (3). The insert (2a) is inserted into the sleeve (1a), after which the pressure piping (P1, P2) are inserted one from either side into the interior of the sleeve (1a), bolts (4) are inserted into the multiple holes (h1) in the sleeve (1a), and screwed onto the screw threads of the pressure piping (P1, P2).

Inventors:
KOBAYASHI KAZUMI (JP)
KOBAYASHI MASATO (JP)
Application Number:
JP2011/074116
Publication Date:
July 19, 2012
Filing Date:
October 20, 2011
Export Citation:
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Assignee:
KOBAYASHI KAZUMI (JP)
KOBAYASHI MASATO (JP)
International Classes:
F16L21/00; F16L21/02; F16L23/024; F16L23/026; F16L23/028
Foreign References:
JP2005081490A2005-03-31
JPH1047539A1998-02-20
JPS5443010U1979-03-23
JPS58142476U1983-09-26
JPH08121662A1996-05-17
JPS519667A1976-01-26
JP2003180011A2003-06-27
JP2010180957A2010-08-19
Other References:
See also references of EP 2613073A4
Attorney, Agent or Firm:
KASEGUMA, Tsuguhisa (?7200806, JP)
Tsuguhisa Kaseguma (?7200806, JP)
Download PDF:
Claims: