Method of reforming the fins of a finned tube

Details Method of reforming the fins of a finned tube Method of reforming the fins of a finned tube

1979-02-01

1980-08-12

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

72283, 72370, H01R 4308

Patent

active

042165750

ABSTRACT:
A method of reforming the fins of a finned tube is disclosed. The method comprises forming a tube having a plurality of internal longitudinal fins with a V-notch at the tip of the fins, and reforming the fins of the tube over a shaped plug, in long lengths, to spread the tips of the V-notch so that the tips of the fins are wider than the fin thickness.

REFERENCES:
patent: 3376443 (1968-04-01), McColl
patent: 3422518 (1969-01-01), French
patent: 3987539 (1976-10-01), Gravener

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