Connecting structure for a fluid transport hose

Details Connecting structure for a fluid transport hose Connecting structure for a fluid transport hose

2007-09-11

2007-09-11

Bochna, David (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S252000, C285S222100

Reexamination Certificate

active

11067114

ABSTRACT:
On the inner surface of a rubber hose body12, a laminated hard resin layer14is formed to constitute a barrier layer that is impermeable to fluids. A clamping connection is made to hose10by a clamping member24, which clamps the hose body to a companion pipe18when the companion pipe is inserted into the hose body. The layer14is not laminated over the entire axial length of the hose body but instead leaves an end part exposed. An annular groove is formed at the end36of the layer14abutting the end part of the hose10. An elastic impermeable material is placed in the groove which is compressed by the pipe upon insertion. The companion pipe18has a protuberance22which rests at a position between the end36of resin layer14and the clamping member so that a seal is formed by elastic compression of the outer surface of companion pipe18against the end part of the hose.

REFERENCES:
patent: 1227690 (1917-05-01), Subers
patent: 5568944 (1996-10-01), Kawasaki
patent: 5664608 (1997-09-01), Kawasaki
patent: 6607218 (2003-08-01), Sakazaki et al.
patent: 6712098 (2004-03-01), Sakazaki et al.
patent: 2002/0017787 (2002-02-01), Sakazaki et al.
patent: 1180633 (2002-02-01), None
patent: 08-294979 (1996-11-01), None
patent: 2002-54779 (2002-02-01), None
Patent Abstract of Japan for Japanese Patent Application Publication No. 08-294979, published Nov. 12, 1996, and English translation.
Patent Abstract of Japan for Japanese Patent Application Publication No. 2002-054779, published Feb. 20, 2002, and English translation.

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