Method of forming a pipe fitting

Details Method of forming a pipe fitting Method of forming a pipe fitting

1987-11-13

1988-09-06

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

72369, 72341, 72256, 72342, 72356, 72377, 29558, B21C 3729, B21D 700

Patent

active

047683694

ABSTRACT:
A method of forming a pipe fitting of unitary construction having a tubular section with a radial flange at one end of the tubular construction. The method includes forming a solid cylindrical bar, upsetting one end of the bar to form a head thereon, drawing the remaining cylindrical portion of the bar to increase its length and decrease its circumference, upsetting the head to form the radial flange, and forming a bore through the flange and remaining cylindrical portion of the bar.

REFERENCES:
patent: 1100779 (1914-06-01), Rich
patent: 1124359 (1915-01-01), Taylor
patent: 1599931 (1926-09-01), Taylor
patent: 1854411 (1932-04-01), Leighton
patent: 1996838 (1935-04-01), Snell
patent: 2348179 (1944-05-01), Moore
patent: 3149416 (1964-09-01), Moore
patent: 3503123 (1970-03-01), Law
patent: 4107972 (1978-08-01), Martin
patent: 4168619 (1979-09-01), Moore
patent: 4332156 (1982-06-01), Broodman

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