Quick connector

Pipe joints or couplings – Essential catch – Leaf spring

Reexamination Certificate

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Details

C285S148160, C285S239000, C285S259000

Reexamination Certificate

active

07434845

ABSTRACT:
A quick connector includes: a connector body having a retainer holding portion, a tube connecting portion to be press fitted into a tube, and a housing between the retainer holding portion and the tube connecting portion, the tube connecting portion being formed with a plurality of annular projections being axially spaced apart from each other; and a retainer which is held in an axially fixed state by the retainer holding portion. A portion of an outer surface of the tube connecting portion extending from the annular projection, which is closest to the housing, toward the housing is formed into a tapered surface whose diameter is gradually enlarged toward the housing, and a diameter of an annular projection side of the tapered surface is set to be larger than a diameter of the outer surface of the tube connecting portion between the annular projections.

REFERENCES:
patent: 3606396 (1971-09-01), Prosdocimo et al.
patent: 5161833 (1992-11-01), McNaughton et al.
patent: 5452924 (1995-09-01), Kujawski
patent: 6129393 (2000-10-01), Kodama et al.
patent: 6250692 (2001-06-01), Ito et al.
patent: 6279966 (2001-08-01), Kondo et al.
patent: 6293596 (2001-09-01), Kinder
patent: 2002/0084654 (2002-07-01), Katayama et al.
patent: 2004/0036282 (2004-02-01), Rohde et al.
patent: 0 971 163 (2000-01-01), None
patent: 7-71673 (1995-03-01), None

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