Pipelock

Details Pipelock Pipelock

1984-06-15

1986-03-11

Husar, Cornelius J.

Pipe joints or couplings

Repair

285421, 285342, 285417, 138 97, F16L 2106

Patent

active

045751293

ABSTRACT:
An improved pipelock comprising a first pair of rings facing each other axially, with the inner diameter of each ring at the outer face being smaller than the inner diameter of each ring at the inner face, each of said first pair of rings comprising at least two circumferential parts, means to restrain longitudinal movement of facing circumferential parts outwardly from each other, at least one second ring comprised of at least two circumferential parts connected to each other, outwardly surrounding said first pair of rings, and constraining outward radial movement of said first pair of rings, at least one third ring comprised of at least two circumferential parts, having an outer surface conforming to the inner surface of said first pair of rings, and at least one waffled fourth ring comprised of at least two circumferential parts having an outer surface in contact with the inner surface of said third ring.

REFERENCES:
patent: 826154 (1906-07-01), Doolittle
patent: 943461 (1909-12-01), Reynolds
patent: 1054904 (1913-03-01), Carpenter
patent: 1955642 (1934-04-01), Laughlin
patent: 2776153 (1957-01-01), Smith
patent: 3152816 (1964-10-01), Smith
patent: 3284112 (1966-11-01), Martin
patent: 4409708 (1983-10-01), Hauffe

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