Process of making heat exchangers

Details Process of making heat exchangers Process of making heat exchangers

1985-06-17

1987-01-20

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573B, 165181, B21D 5302, B23P 1526, F28F 120

Patent

active

046371117

ABSTRACT:
A heat exchanger having groups integral fins projecting outwardly from the sidewalls of the heat exchanger is manufactured by advancing a cutter into the sidewalls of the heat exchanger, turning the integral fins outwardly and severing predetermined fins with the cutting instrument to provide predetermined fin-free areas on the sidewalls.

REFERENCES:
patent: 3746086 (1973-07-01), Pasternak
patent: 3901312 (1975-08-01), Pasternak
patent: 4203311 (1980-05-01), O'Connor et al.
patent: 4330913 (1982-05-01), Kritzer
patent: 4332069 (1982-06-01), Kritzer
patent: 4349949 (1982-09-01), Kritzer

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