Cutting – Processes – Plural cutting steps
Patent
1983-06-29
1985-06-11
Meister, James M.
Cutting
Processes
Plural cutting steps
83 49, 83565, 83622, 83916, B26D 300, B26D 726
Patent
active
045220921
ABSTRACT:
A method of manufacturing a configured cut-out in a sheet of material by arranging a pair of dies to support a sheet of material therebetween, pushing a punch shaft through one die, then through the sheet of material and then through the other die, then retracting the punch shaft to effectuate initiation of a nibbling operation to produce a cut-out in the sheet of material to correspond to a cut-out in a template, which template is traced by a pilot finger during common motion of the template and the sheet of material.
REFERENCES:
patent: 3144798 (1964-08-01), Leibinger
patent: 3481236 (1969-12-01), Nicklasson
patent: 3800643 (1974-04-01), Scott et al.
patent: 3988829 (1976-11-01), Sumida
patent: 4354411 (1982-10-01), Griese et al.
patent: 4372183 (1983-02-01), Lehtinen
Knoble John L.
Meister James M.
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