Pipe joints or couplings – Essential catch – Resilient ring
Reexamination Certificate
2007-07-10
2007-07-10
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Essential catch
Resilient ring
C285S322000, C285S243000, C285S305000, C285S921000
Reexamination Certificate
active
11144820
ABSTRACT:
A connection assembly has a male connector, a first engaging ring securely mounted on the male connector, a female connector and a second engaging ring securely received in the female connector. The first engaging ring has first claws formed to abut a periphery defining the second annular groove formed on the female connector and the second engaging ring has second claws formed to abut a periphery defining the first annular groove formed on the male connector. Engagement between the male connector and the female connector is accomplished after the abutment between the first claws and the second annular groove and between the second claws and the first annular groove is finished.
REFERENCES:
patent: 5178424 (1993-01-01), Klinger
patent: 5346260 (1994-09-01), Meyer-Berg et al.
patent: RE36630 (2000-03-01), Davey
patent: 6241292 (2001-06-01), Yang
patent: 6851728 (2005-02-01), Minami
patent: 2002/0070550 (2002-06-01), Lin et al.
Dunwoody Aaron
Kee Fannie C.
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