Method of making a gas-fired furnace

Details Method of making a gas-fired furnace Method of making a gas-fired furnace

1975-12-05

1976-08-10

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573R, 29463, 291962, 148 34, 148127, 165133, 427383, 427405, B23P 1526, B21D 5304

Patent

active

039739180

ABSTRACT:
This specification discloses a method of making a high efficiency gas-fired furnace with aluminized steel heat exchangers which are specially prepared for higher heat exchange efficiency by heat treatment of the heat exchanger shells.

REFERENCES:
patent: 1950500 (1934-03-01), Loprich et al.
patent: 2303869 (1942-12-01), Quinlan et al.
patent: 2682101 (1954-06-01), Whitfield et al.
patent: 3033705 (1962-05-01), Hanink et al.
patent: 3058206 (1962-10-01), Mets
patent: 3650005 (1972-03-01), Kamiya et al.
patent: 3754874 (1973-08-01), Anderson
patent: 3809155 (1974-05-01), Anthony et al.
patent: 3837894 (1974-09-01), Tucker, Jr.

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