Method and apparatus for cutting sheet material

Details Method and apparatus for cutting sheet material Method and apparatus for cutting sheet material

1979-06-07

1981-02-10

Yost, Frank T.

Cutting

Processes

Cutting by direct application of fluent pressure to work

83167, 83177, 83417, 83422, 83431, B26D 102

Patent

active

042494389

ABSTRACT:
A sheet cutting method and apparatus wherein a fluid pervious die plate or wall having projecting cutting edges is located facing a sheet to be worked, and a vacuum is transmitted through the wall to draw the sheet against the cutting edges for severance of the sheet.

REFERENCES:
patent: 2416173 (1947-02-01), Halstead
patent: 2425039 (1947-08-01), Luehrs
patent: 2467172 (1949-04-01), Wheeler
patent: 3170353 (1965-02-01), Wheeler et al.
patent: 3171311 (1965-03-01), Carlson
patent: 3269242 (1966-08-01), Hooper et al.

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