Finning and thread rolling machine

Details Finning and thread rolling machine Finning and thread rolling machine

1988-09-09

1991-04-02

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Heat exchanger

29 33D, 29 33T, 2989048, 298905, 72 96, 72 98, 72100, B23P 1526

Patent

active

050036904

ABSTRACT:
A finning and thread rolling machine capable of producing an integral finned tube, an extended finned tube or a wrap-on finned tube, whichever is desired, the tubing to be used for extended surface heat transfer. Types of tubes produced are integral low finned tube, bi-metal fin tube with extruded high finned tube on the outer portion, and extruded integral/high finned tube and spiral strip helical wrap-on finned tube. The apparatus also provides a two and three die thread rolling machine for thru-feed threading and form rolling.

REFERENCES:
patent: 1472719 (1923-10-01), Horvath
patent: 1884203 (1932-10-01), Pickhard
patent: 2152437 (1939-03-01), Lear
patent: 2374144 (1945-04-01), Stikeleather
patent: 3004387 (1935-06-01), Dewald
patent: 3055082 (1962-09-01), Garland

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