Multiple key segmented pipe coupling

Details Multiple key segmented pipe coupling Multiple key segmented pipe coupling

1982-04-23

1985-06-11

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285368, 285373, 285423, F16L 1704

Patent

active

045224340

ABSTRACT:
Segments of a coupling for use in a high-pressure piping system are provided with cast multiple keys in their as cast condition, and which are for reception within corresponding plural or multiple grooves in pipe ends, crushing of the operative faces of the keys and cold working of the faces of the pipe grooves in engagement therewith providing for equalization of the axial loading imposed on the respective keys.

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patent: 4248460 (1981-02-01), Murray
patent: 4310183 (1982-01-01), Szalvay
patent: 4408788 (1983-10-01), Beukema

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