Pipelock

Details Pipelock Pipelock

1983-10-04

1986-02-25

Husar, Cornelius J.

Pipe joints or couplings

Repair

285419, 285286, 285330, 285421, 285323, 285305, 138 97, F16L 2106

Patent

active

045725489

ABSTRACT:
A novel 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.

REFERENCES:
patent: 525775 (1894-09-01), Wainwright
patent: 2338307 (1944-01-01), Staggers
patent: 2597482 (1952-05-01), Harrison et al.
patent: 2827312 (1958-03-01), Spencer
patent: 3152816 (1964-10-01), Smith
patent: 3154327 (1964-10-01), Rothschild
patent: 3467141 (1969-09-01), Smith
patent: 3469865 (1969-09-01), Ellenburg
patent: 3495853 (1970-02-01), Furrer
patent: 4049296 (1977-09-01), Harrison
patent: 4171142 (1979-10-01), Harrison

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