Title:
WELDING CONNECTION STRUCTURE FOR PIPE
Document Type and Number:
WIPO Patent Application WO/2013/073589
Kind Code:
A1
Abstract:
Provided is a welding connection structure for a pipe, characterized in that the pipe includes a double pipe section on at least one end. Said double pipe section is formed by folding the pipe wall at the aforementioned one end of the pipe back and inwards, and the folded-back portion is in close contact with wall of the outer pipe. At the double pipe section, the pipe is connected by welding to the mating member to which the pipe is to be connected.
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Inventors:
TANAKA YOSHIKI (JP)
ARISAWA NAOTAKA (JP)
TAKEMOTO NAOHIRO (JP)
MORII HIDEYUKI (JP)
ARISAWA NAOTAKA (JP)
TAKEMOTO NAOHIRO (JP)
MORII HIDEYUKI (JP)
Application Number:
PCT/JP2012/079541
Publication Date:
May 23, 2013
Filing Date:
November 14, 2012
Export Citation:
Assignee:
FUTABA IND CO LTD (JP)
International Classes:
F16L13/02; F01N13/08
Foreign References:
| JPH01159118U | 1989-11-02 | |||
| JPS57114125U | 1982-07-15 | |||
| JP2006242033A | 2006-09-14 | |||
| JPS5823925Y2 | 1983-05-23 | |||
| JPS56174784U | 1981-12-23 | |||
| JPH06117242A | 1994-04-26 |
Other References:
See also references of EP 2781815A4
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
Nagoya international patent business corporation (JP)
Nagoya international patent business corporation (JP)
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Claims: