Pipe joints or couplings – With assembly means or feature – Guide
Patent
1981-01-05
1983-10-04
Callaghan, Thomas F.
Pipe joints or couplings
With assembly means or feature
Guide
285105, 285242, 285323, 29450, 29464, F16L 4700
Patent
active
044075260
ABSTRACT:
A stab-type coupling and method for connecting an end portion of a smooth wall non-metallic pipe or tube to fittings or other pipes or tubes. The coupling is defined by a non-metallic coupling body, a generally elongated hollow insert, an annular retaining spacer ring, seal rings, a collet back-up ring, and a retaining collet all disposed within the recess of the coupling body. The retaining collet is provided with a tapered external surface complementary to an internal frusto-conical surface defined by the back-up ring which in the preferred embodiment is molded within the coupling body. A separate non-metallic chamfer ring which is closely slidably receivable on the hollow insert is also provided. The coupling is made up as by inserting the chamfer ring onto the hollow insert to a position spaced inwardly from the insert outer end and outwardly adjacent to the coupling body. The end of a smooth wall pipe is then urged onto the insert outer end in a surrounding relationship therewith so that the end face of the pipe engages the chamfer ring. Thereafter, the pipe is urged further onto the insert so as to penetrate into the interior of the coupling body. The chamfer ring acts as a guide for the pipe to ease such urging. The retaining collet includes a toothed inner surface which retainingly engages the external surface of the pipe and prevents withdrawal of the pipe from the coupling body. The retaining spacer ring is spaced axially inward in the coupling body from the retaining collet and includes gripping means to aid in pipe retention.
REFERENCES:
patent: 3168779 (1965-02-01), Schustack
patent: 3282610 (1966-11-01), White
patent: 3327379 (1967-06-01), Clements
patent: 3907335 (1975-09-01), Burge et al.
patent: 3999783 (1976-12-01), Legris
patent: 4229025 (1980-10-01), Volgstadt et al.
Callaghan Thomas F.
Perfection Corporation
LandOfFree
Tab-type coupling and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tab-type coupling and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tab-type coupling and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-970846