Apparatus and method for manufacturing plate fin coils of differ

Details Apparatus and method for manufacturing plate fin coils of differ Apparatus and method for manufacturing plate fin coils of differ

1987-11-06

1989-10-31

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573C, 291574, 29523, 29727, B21D 5302

Patent

active

048767794

ABSTRACT:
A method and apparatus for expanding copper and aluminum tubes in either compression expansion or tension expansion which is adjustable to expand different configurations of coils on row at a time.

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patent: 4512560 (1985-04-01), Molzer et al.
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patent: 4584751 (1986-04-01), Gray et al.
patent: 4584765 (1986-04-01), Gray
patent: 4720920 (1988-01-01), Gray
patent: 4734969 (1988-04-01), Cunier et al.

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