Apparatus for cutting sheet material

Details Apparatus for cutting sheet material Apparatus for cutting sheet material

1982-02-04

1984-04-24

Schran, Donald R.

Cutting

Interrelated tool actuating means and means to actuate work...

83 39, 83100, 83 71, 83925R, 269 21, B26D 706, B65H 3500

Patent

active

044440782

ABSTRACT:
A sheet material cutting apparatus has a vacuum table with openings in its surface and a cutter wheel which moves in engagement with the table surface to cut sheet material spread on the surface. A valve is movable within each opening between an open and closed position. Each valve moves to its closed position within its associated opening in response to movement of the cutter wheel to a predetermined position relative to the associated opening. Each valve in its closed position defines a portion of the table surface.

REFERENCES:
patent: 2680994 (1954-06-01), Wood
patent: 3307819 (1967-03-01), Cocito
patent: 3495492 (1970-02-01), Gerber et al.
patent: 3865359 (1975-02-01), Caroli
patent: 3907268 (1975-09-01), Hale
patent: 4328726 (1982-05-01), Pearl
patent: 4345496 (1982-08-01), Pearl
patent: 4378155 (1983-03-01), Nygaard

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