Paper shredding knife structure for paper shredder

Details Paper shredding knife structure for paper shredder Paper shredding knife structure for paper shredder

1993-10-18

1994-06-14

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Comminuting surface deformable by contact with material

241235, 241293, B02C 1806

Patent

active

053202872

ABSTRACT:
A paper shredding knife structure includes a number of zigzag disk-like knife blades, each having a sharp outer edge, mounted on a knife support shaft, one by one closely adjacent each other so as to define a number of rhombic spaces between any two adjacent blades. A roller, preferably comprising a resilient material outer coating, is mounted in such a way to allow the knife blades to be in tight contact engagement with the roller so that when the knife support shaft and the roller are rotated with a sheet of paper feed through therebetween, the zigzag blades cut the paper sheet into small rhombic pieces.

REFERENCES:
patent: 1681920 (1928-08-01), Baccellieri
patent: 2306427 (1942-12-01), Christman et al.
patent: 2962230 (1960-11-01), Dilley et al.
patent: 3070318 (1962-12-01), Blanchard
patent: 3089409 (1963-05-01), Tretheway et al.
patent: 3406624 (1968-10-01), Kutchera et al.

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