Three knives cutting

Details Three knives cutting Three knives cutting

2008-04-15

2008-04-15

Peterson, Kenneth E. (Department: 3724)

Cutting

Processes

Plural cutting steps

C083S056000, C083S622000

Reexamination Certificate

active

10019992

ABSTRACT:
The invention relates to a process and a device for producing a contour of a planiform piece, intended, in particular, for the internal trim of motor vehicles, in which the piece (1) is cut to define at least an apex (2) of the contour (3), having a given profile P, and a side (4), or so-called first side, of the contour (3) extending from the apex (2). According to the invention, there are carried out sequentially: on one hand, cutting of the piece (1) to produce simultaneously at least the apex (2), according to the profile P, and to cut the first side (4) over a portion, referred to as a fraction F, of its length extending from the apex (2); on the other hand, at least another operation of cutting the piece (1) to produce the first side (4), including at least a portion at least of the fraction F.

REFERENCES:
patent: 2118110 (1938-05-01), Rosenberg
patent: 3570356 (1971-03-01), Williams et al.
patent: 3882747 (1975-05-01), Carli
patent: 4250786 (1981-02-01), Bleich
patent: 4539880 (1985-09-01), Barber et al.
patent: 4623089 (1986-11-01), Scott
patent: 4696211 (1987-09-01), Bitzel
patent: 4729273 (1988-03-01), Fazis
patent: 4738173 (1988-04-01), Kiuchi
patent: 4869141 (1989-09-01), Klingel
patent: 4967626 (1990-11-01), Doster et al.
patent: 5044239 (1991-09-01), Endo et al.
patent: 5113733 (1992-05-01), Peterson et al.
patent: 5195413 (1993-03-01), Johnson
patent: 0 325 036 (1989-07-01), None
patent: WO 01/70470 (2001-09-01), None
Examiner Peterson's chisel set and workbench, pre-1995, one page.

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