Self-aligning ring joint for joining concrete pipes having ends

Details Self-aligning ring joint for joining concrete pipes having ends Self-aligning ring joint for joining concrete pipes having ends

1978-01-16

1980-03-25

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285345, 285369, F16L 1702

Patent

active

041947665

ABSTRACT:
A self-aligning ring joint of the type used for joining concrete pipes, said ring joint including a novel sealing ring which in conjunction with specially adapted ends of the concrete pipes to be joined insures that the ring joint will maintain an equilibrium position whereby it is always symmetrical to the normal plane between the two pipe ends.

REFERENCES:
patent: 2245153 (1941-06-01), McWane
patent: 2685462 (1954-08-01), Lofquist
patent: 3186741 (1965-06-01), Kurtz
patent: 3575430 (1971-04-01), Alpine
patent: 3690701 (1972-09-01), Gramain
patent: 3857589 (1974-12-01), Oostenbrink

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