Quick connect fitting

Details Quick connect fitting Quick connect fitting

1989-09-22

1991-02-19

Arola, Dave W.

Pipe joints or couplings

Essential catch

With manipulator

285 92, 285322, 285340, 285422, F16L 3718

Patent

active

049937553

ABSTRACT:
A quick connect fitting in which tubing can be inserted into a pre-assembled fitting where it will become sealed and locked against pull-out. A main fitting body has an open-ended recess in which is located a movable piston to seal against the body and an inserted tube. The piston wedges over a conical extension on a sealing gland retained by a screw-on cap. The sealing gland has rearward, circumferentially spaced fingers radially movable. An axially shiftable ring, in one position, allows the fingers to expand to receive the tube, and, when shifted to a second position, moves the finger to engage the extension surface of the tube to lock against withdrawal.

REFERENCES:
patent: 2784987 (1957-03-01), Corcoran
patent: 4275907 (1981-06-01), Hunt
patent: 4664427 (1987-05-01), Johnston
patent: 4712810 (1987-12-01), Pozzi
patent: 4743051 (1988-05-01), Proni

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