Pipe couplings

Details Pipe couplings Pipe couplings

1985-08-15

1986-08-19

Scanlan, Jr., Richard J.

Pipe joints or couplings

Packed

Externally with clamp

285343, 285372, 2853827, F16L 1700

Patent

active

046065652

ABSTRACT:
A pipe coupling is provided having a sleeve with frusto-conical ends, elastomeric gaskets fitting in said frusto-conical ends, a follower at each end of the sleeve, tightening bolts acting on the followers to move them axially together to compress the elastomeric gaskets radially into sealing engagement with the pipe ends, a back up ring having a frusto-conical opening spaced from each follower opposite the sleeve, frusto-conical opening in each said back up ring having its largest opening toward said sleeve, a frusto-conical split jaw in each back up ring and auxiliary tightening means for moving the back up rings towards the adjacent followers to compress said jaws into the pipe ends.

REFERENCES:
patent: 3207184 (1965-09-01), Lambert
patent: 3594023 (1971-07-01), Yano
patent: 4070046 (1978-01-01), Felker et al.
patent: 4119335 (1978-10-01), Rieffle et al.

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