Making heat exchangers

Details Making heat exchangers Making heat exchangers

1980-11-10

1982-06-01

Larson, Lowell A.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29727, 291573B, B21D 5302, B23P 1526

Patent

active

043320694

ABSTRACT:
The method of making elongated heat exchangers having outwardly projecting fins spaced longitudinally thereof, wherein the fins are cut or gouged from a surface of a work-piece, and which method includes making indentations in the surface prior to cutting or gouging the fins therefrom, to thereby afford roughened surfaces of the fins so formed, and which method may also include scratching or cutting a surface of a previously formed fin.

REFERENCES:
patent: 3776018 (1973-12-01), French
patent: 3781959 (1974-01-01), O'Connor
patent: 3791003 (1974-02-01), Pasternak
patent: 3886639 (1975-06-01), Pasternak

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