Coupling for helically corrugated spiral pipe

Details Coupling for helically corrugated spiral pipe Coupling for helically corrugated spiral pipe

1977-01-19

1978-11-07

Arola, Dave W.

Pipe joints or couplings

Packed

Sleeve

285424, 285DIG4, F16L 1704

Patent

active

041242360

ABSTRACT:
A coupling for providing a substantially soil tight joint between abutting ends of helically corrugated spiral pipe having a pair of corrugated flexible preformed strips, one located on and encircling each pipe, and a metal tightening band fitted over the outside of both strips.

REFERENCES:
patent: 1197813 (1916-09-01), Frilick
patent: 3315991 (1967-04-01), Davis
patent: 3708187 (1973-01-01), Campbell

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