Quick connect tube couplings

Details Quick connect tube couplings Quick connect tube couplings

1994-09-20

1996-04-30

Arola, Dave W.

Pipe joints or couplings

Nonmetal to metal

Internal member

285255, 285323, 285331, 285347, F16L 3300

Patent

active

055118305

ABSTRACT:
A quick connect tube coupling is configured for use with unstepped bores in conventional fittings, valves, manifolds and similar devices. The coupling includes a tubular tube support which has structure thereon for positively coupling with a brass sleeve which is utilized to retain the coupling in the bore. The tubular tube support further includes a stepped portion which locates a primary O-ring seal for sealing directly with a tube connected by the coupling and a secondary O-ring seal which seals with the wall of the bore. In accordance with a preferred embodiment, the tube support is molded of plastic and is polygonal in cross-section.

REFERENCES:
patent: 3003792 (1961-10-01), Gilmour
patent: 3679239 (1972-07-01), Schmitt
patent: 3909046 (1975-09-01), Legris
patent: 4431216 (1984-02-01), Legris
patent: 4445714 (1984-05-01), Kisiel, III
patent: 4685706 (1987-08-01), Kowal et al.
patent: 4705304 (1987-11-01), Matsuda et al.
patent: 4712813 (1987-12-01), Passerell et al.
patent: 5042844 (1991-08-01), Iida et al.
patent: 5085472 (1992-02-01), Guest
patent: 5348354 (1994-09-01), Badoureaux

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