Restrainer device for couplings in pipelines

Details Restrainer device for couplings in pipelines Restrainer device for couplings in pipelines

1985-06-20

1986-09-02

Arola, Dave W.

Pipe joints or couplings

With strain relief

285373, 285423, F16L 1304

Patent

active

046092102

ABSTRACT:
A thrust restrainer for a joint in a pipeline between a plain end of a synthetic plastic pipe and a fitting comprises a pair of semicylindrical moulded half sleeves bolted together through diametrically extending flange portions, the half sleeves having at one end an internal profile complementary to that of the fitting, and at its other end a semicylindrical internal profile matching the external surface of the pipe, the semicylindrical profile including a plurality of parallel serrations which deform the material of the pipe into engagement with the serrations on bolting together of the half sleeves.

REFERENCES:
patent: 2507261 (1950-05-01), Mercier
patent: 2738993 (1956-03-01), Wilson
patent: 2923561 (1960-02-01), Merrill
patent: 3004780 (1961-10-01), Main
patent: 3135537 (1964-06-01), Scott
patent: 3627357 (1971-12-01), Sanders
patent: 4045060 (1977-08-01), Daigle
patent: 4299413 (1981-11-01), Neher
patent: 4336959 (1982-06-01), Roche
patent: 4372587 (1983-02-01), Roche
patent: 4421347 (1983-12-01), Kantor
patent: 4488738 (1984-12-01), Valdes
"Products for PVC Pipe", Uniflange Corporation, date of publication unknown but prior to Nov. 24, 1982.

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