Method and apparatus for separating thin-walled, multiport micro

Details Method and apparatus for separating thin-walled, multiport micro Method and apparatus for separating thin-walled, multiport micro

1990-12-19

1992-07-28

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

225 965, 225101, B26D 302, B23D 2100

Patent

active

051334925

ABSTRACT:
A method for separating a thin-walled multiport extrusion into a plurality of micro-tubes for use as single pass lengths in a heat exchanger assembly, the method including the steps of threading the micro-extrusion into a clamping device including first and second sets of clamping blocks which hold the micro-extrusion rigidly while the clamping blocks of the clamping device are drawn in opposite directions on opposite sides of a groove cut in the upper and lower walls of the extrusion, tearing the extrusion apart along cutting lines formed in the upper and lower walls of the extrusion during the separation process.

REFERENCES:
patent: 1366063 (1921-01-01), Culhane, Jr.
patent: 3112559 (1963-12-01), Pauls
patent: 3254400 (1966-06-01), Gordon
patent: 3679109 (1972-07-01), King, Jr.
patent: 4216004 (1980-08-01), Brehm et al.
patent: 4562628 (1986-01-01), Marneffe et al.
patent: 4565244 (1986-01-01), O'Connor et al.

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