Ductile cast iron pipe having constricted end casing

Details Ductile cast iron pipe having constricted end casing Ductile cast iron pipe having constricted end casing

1980-05-02

1982-05-18

Bryant, III, James E.

Pipes and tubular conduits

Combined

With end structure

277207A, 295275, 72367, F16L 902

Patent

active

043300154

ABSTRACT:
A pipe or similar tubular member of ductile cast iron having an end casing. The thin walled casing has a curved profile at its entrance divided into two sections, of which one is formed by centrifugal casting, whereas the other, of lesser curvature, is made by hot or cold forming with a simultaneous axial compression and a radial bending directed towards the axis of the pipe. The invention is useful for forming fluid tight seals in pipelines using radial compression packings.

REFERENCES:
patent: 2245154 (1941-06-01), McWane
patent: 2991692 (1961-07-01), MacKay
patent: 3064983 (1962-04-01), Halterman
patent: 3219354 (1965-11-01), Kazienko
patent: 3977227 (1976-08-01), Noble

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