Skew pipe coupling

Details Skew pipe coupling Skew pipe coupling

1992-11-25

1993-09-21

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285367, 285373, F16L 1704

Patent

active

052462579

ABSTRACT:
A pipe coupling is provided having a pair of arcuate housings each provided with a crescent groove and a crescent protrusion formed on an abutting end surface of the arcuate housings in the positions which is symmetrical to each other around a vertical axis and is offset from a transverse central axis. When the arcuate housings are tightened by bolts and nuts, the crescent protrusion is inserted into the crescent groove, thereby causing skewed movement of the arcuate housings around the vertical central axis of the pipe coupling in adverse directions to the predetermined angular positions. Thus, upon completion of tightening by the bolts, excessive tightening by the bolt is prevented due to mutual contact of the abutting end surfaces of the arcuate housings.

REFERENCES:
patent: 4611839 (1986-09-01), Rung
patent: 4861075 (1989-08-01), Pepi et al.
patent: 4966395 (1990-10-01), Hendrickson

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