Releasable plug-in connection for pipelines or the like

Pipe joints or couplings – Essential catch – Resilient ring

Reexamination Certificate

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Details

C285S081000, C285S305000, C285S319000

Reexamination Certificate

active

07631904

ABSTRACT:
A pipeline plug-in connection (10) has a receiving part (14), a plug-in part (16) which can be plugged into the receiving part (14), a sealing element (18) for sealing between the receiving part and the plug-in part, and an elastic securing element (20). The plug-in part has a pipe section (50) with an abutment (24) with an expanding diameter section (26) which expands in terms of its external diameter counter to the joining direction, over which expanding diameter section the securing element can be stretched, and an abutment face (28), behind which the securing element can latch. The expanding diameter section ends, with its largest external diameter substantially near or at the abutment face, wherein a flange (54) is formed on the pipe section, the flange forming a sealing face (56) at the end, against which sealing face the sealing element bears in a sealing manner when the plug-in connection is assembled.

REFERENCES:
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German Article, Hydraulic Braking Systems; Fittings for Brake Pipes; Male Fittings for Brake Pipes, DIN 74 233 Part 1, Feb. 1991, 3 pages.
German Article, Hydraulic Braking Systems; Fittings for Brake Pipes; Union Nuts for Brake Pipes, DIN 74 233 Part 2, Feb. 1991, 2 pages.
German Article, Hydraulic Braking Systems; Brake Pipes; Flares, DIN 74 234, Sep. 1992, 4 pages.

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