Refrigeration apparatus and method of making same

Details Refrigeration apparatus and method of making same Refrigeration apparatus and method of making same

1982-01-26

1984-12-25

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

228183, 219 602, 291574, 165171, B23P 1526

Patent

active

044894708

ABSTRACT:
A method of securing a tube, such as a condenser tube for a refrigeration cabinet, to the inside of the outer walls of the cabinet by means of direct welding between the tube and the oil panel of the cabinet. The tubing is formed to the desired configuration and a plurality of projections are formed on the tube for welding to the surface by a crimping action which indents the sidewalls of the tube at each weld location to produce a projection beyond the normal tubing wall while the rest of the tubing remains undeformed. Subsequently, the configuration of tubing is placed on the sheet and resistance-welded under conditions to produce a relatively light weld adhesion with a small weld nugget that does not create any significant discoloration or distortion on the other side of the sheet which becomes the finished exterior surface of the cabinet.

REFERENCES:
patent: 2744429 (1956-05-01), Seely
patent: 2912230 (1959-11-01), Rataiczak
patent: 3193659 (1965-07-01), Schaus
patent: 3357083 (1967-12-01), Wiekn et al.

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