Method of manufacturing heat absorbing elements

Details Method of manufacturing heat absorbing elements Method of manufacturing heat absorbing elements

1981-09-10

1983-09-06

Husar, Francis S.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B23P 1526

Patent

active

044021216

ABSTRACT:
A method of manufacturing a heat absorbing element, the method comprising combining a first metal strip face-to-face with a second metal strip having a width greater than that of the first to form a composite strip wherein the side margins of the second strip extend laterally outwardly beyond the side edges of the first. The composite strip thus has a central portion extending longitudinally of the strip comprising a double thickness of strip and portions extending longitudinally of the strip on opposite sides of the central portion each comprising one less thickness of strip than the central portion. The central portion of the composite strip is then formed into a tube, and the tube is closed along a line extending longitudinally of the tube with the side portions of the composite strip extending outwardly away from the seam to form a pair of fins along the tube.

REFERENCES:
patent: 4011856 (1977-03-01), Gallagher
patent: 4143448 (1979-03-01), Caster et al.
patent: 4227511 (1980-10-01), Margen et al.
patent: 4237971 (1980-12-01), Olsson et al.

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