Metal pipe coupling to accommodate a desired angle of connection

Pipe joints or couplings – With casing – lining or protector – Lined

Patent

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Details

285226, 285373, 285419, 285424, 285903, 29454, F16L 914

Patent

active

048653578

ABSTRACT:
A rigid metal pipe coupling for joining pipe sections comprises a sheet of metal having opposite edges for rolling into a generally cylindrical rigid sleeve. The metal sheet has an integrally formed expansible and contractible means formed intermediate the ends of the sheet, said means is adapted after rolling into said sleeve and under the action of a predetermined force to expand and contract thereby allowing said sleeve to permanently bend and accommodate a desired angle of connection between pipe sections.

REFERENCES:
patent: 1259233 (1918-03-01), Hartman
patent: 1652703 (1927-12-01), Cushman
patent: 3336950 (1967-08-01), Fochler
patent: 3501179 (1970-03-01), Boynton et al.
patent: 4437691 (1984-03-01), Loney
Brochure by Armco Sewer Systems Joints and Appurtenances, Title: Armco's H-4 Hugger Band, 1 page.
Brochure by Armco Sewer Systems Joints and Appurtenances, Title: Armco's H-10 Hugger Joint, 1 page.
Brochure by Armco Hel-Cor CL Title: Concrete-Lined Corrugated Steel Pipe, 8 pages.

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