FUNNEL COUPLING BRANCH PIPE AND METHOD OF MANUFACTURING SAME Russian patent published in 1996 - IPC

Abstract RU 2067250 C1

FIELD: metal working. SUBSTANCE: coupling is obtained by cylindric expansion of a pipe blank to form the arresting ring projection in the middle of the pipe and conical expansion of its ends for setting spacers when pipes are joined. These are carried out by way of two punches. One of the punches is movable. EFFECT: simplified manufacturing. 3 cl, 2 dwg

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RU 2 067 250 C1

Authors

Gorelik B.A.

Balandenko V.I.

Tarasov A.N.

Petrovich I.G.

Dates

1996-09-27Published

1991-05-05Filed