Quick-connect coupling

Pipe joints or couplings – Essential catch – With manipulator

Reexamination Certificate

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Details

C285S039000, C285S319000, C285S321000

Reexamination Certificate

active

07147253

ABSTRACT:
A quick-connect coupling which includes a locking ring (20) disposed in an coupling body to co-operate with a catch surface on a tube fitted into the coupling. The ring is elastically deformable to go between an unlocking configuration and a locking configuration, in which at least one locking zone (30, 32) co-operates with the catch surface. To this end, the ring is provided with at least one unlocking bridge (22, 24) that protrudes through a slot in the body of the coupling. The ring is constituted by a strip that is plastically deformed to have at least the locking zone and the bridge. The ring forms a closed loop and has two ends (20A,20B) which overlap, and which are suitable for sliding one over the other while the ring is being elastically deformed.

REFERENCES:
patent: 5366259 (1994-11-01), Hohmann et al.
patent: 5536047 (1996-07-01), Detable et al.
patent: 5971445 (1999-10-01), Norkey
patent: 0 651 198 (1995-05-01), None
patent: 0 719 971 (1996-07-01), None
patent: WO 98 57061 (1998-12-01), None
Merriam-Webster's Collegiate Dictionary 2001, Merriam-Webster Inc., Tenth Edition, p. 794.

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