Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2010/134557
Kind Code:
A1
Abstract:
A pipe joint suitable for use particularly in refrigerant piping, the pipe joint not causing corrosion due to contact between different kinds of metals even if a pipe consisting of aluminum or other metal is used, improving the efficiency of pipe connection work and the quality of the connection by eliminating the need of forming a flare on the pipe, and not likely to become loose. A pipe joint comprising a flare joint body (1), a cap nut (2), and a stop ring (3). The rounded pressure-contact sloped surface (32) of the stop ring (3) makes contact under pressure with a diameter reducing tapered section (5) at the tip of the flare joint body (1) to form a seal by mutual contact between the metal surfaces. The stop ring (3) is provided integrally with a claw section (36) which bites into the outer peripheral surface (10A) of the straight tip (10) of the pipe.
Inventors:
FUKUYAMA JUN (JP)
WASHINO MITSUHIRO (JP)
WASHINO MITSUHIRO (JP)
Application Number:
PCT/JP2010/058473
Publication Date:
November 25, 2010
Filing Date:
May 19, 2010
Export Citation:
Assignee:
HIGASHIO MECH CO LTD (JP)
INOAC HOUSING & CONSTRUCTION MATERIALS CO LTD (JP)
FUKUYAMA JUN (JP)
WASHINO MITSUHIRO (JP)
INOAC HOUSING & CONSTRUCTION MATERIALS CO LTD (JP)
FUKUYAMA JUN (JP)
WASHINO MITSUHIRO (JP)
International Classes:
F16L19/08
Foreign References:
| JP2008546966A | 2008-12-25 | |||
| JP2004519636A | 2004-07-02 | |||
| JP2005221013A | 2005-08-18 | |||
| JP2008232227A | 2008-10-02 | |||
| JPS62204086U | 1987-12-26 | |||
| JP2005042858A | 2005-02-17 |
Other References:
See also references of EP 2434191A4
Attorney, Agent or Firm:
HIROKOH, Masaki et al. (JP)
Hiroyuki Masaki (JP)
Hiroyuki Masaki (JP)
Download PDF:
Claims: