Pipe coupling

Pipe joints or couplings – Essential catch – With manipulator

Patent

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Details

285321, 285906, F16L 3718

Patent

active

052305384

ABSTRACT:
A pipe coupler comprises a socket body having locking-ball receiving holes for receiving locking balls, a sleeve axially slidable on the socket body and a plug having an engaging groove for receiving the locking balls. The plug is detachably connected to the socket body due to operation of the sleeve. A step engageable with the rear side face of the engaging groove is formed on a portion of the socket body in a vicinity of the forward side of the locking-ball receiving holes. An axially movable and retractable ring is disposed in the engaging groove such that the ring is mounted on the portion of the socket body in front of the locking-ball receiving holes when the sleeve is free and retracts axially to engage the step so as to prevent the sleeve from advancing further when the ring coincides with the locking balls whereby the plug is locked to the socket body in a one-touch operation without flow loss. This structure ensures easy manufacture of a pipe coupler at a low cost.

REFERENCES:
patent: 3295553 (1967-01-01), Garrett et al.
patent: 4453449 (1984-06-01), Hollmann
patent: 4921282 (1990-05-01), Meisinger

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