Method of repairing aluminum plate fin coils

Details Method of repairing aluminum plate fin coils Method of repairing aluminum plate fin coils

1979-06-11

1980-10-28

Husar, Francis S.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573C, 2940211, 2940208, 113118C, B23P 1526

Patent

active

042298695

ABSTRACT:
Damaged end portions of tubes are repaired from a multi-tube finned coil in which the tubes are expanded into intimate contact with the fins. The method consists of removing the damaged end portion of the tube adjacent the area in which the tube projects from the coil body. A replacement stub tube member having one end dimensioned to be similar to the removed end portion and the other end portion dimensioned to be inserted into the coil tube. After the end portion dimensioned to be inserted in the coil tube is arranged therein, a portion thereof is expanded so that its inner diameter is at least equal to that of the tube coil.

REFERENCES:
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patent: 2394831 (1946-02-01), Woods
patent: 2411246 (1946-11-01), Clapper
patent: 3208136 (1965-09-01), Joslin
patent: 3498866 (1970-03-01), Kilbane
patent: 3828412 (1974-08-01), Dreksler
patent: 3857151 (1974-12-01), Young et al.
patent: 3877518 (1975-04-01), Dreksler
patent: 3937641 (1976-02-01), Kushner et al.
patent: 3962767 (1976-06-01), Byerley et al.
patent: 4043018 (1977-08-01), Neff
patent: 4076167 (1978-02-01), Wright

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