Knife roller for paper shredder

Details Knife roller for paper shredder Knife roller for paper shredder

1987-07-28

1989-05-16

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Comminuting elements

241236, B02C 430

Patent

active

048302953

ABSTRACT:
A grooved knife roller for paper shredders. The knife roller has helically extending grooves, wherein the lagging side of each groove in the direction of rotation of the roller and the circumferential surface of the roller include an acute angle to form a hook-like sharp point facing in circumferential direction for cutting paper material in the longitudinal and transverse directions thereof. The lagging side of the groove in the direction of rotation of the roller is rectilinear and is inclined so as to be directed against the direction of rotation of the roller. A transition portion of the groove immediately adjacent the lagging side of the groove is arc-shaped.

REFERENCES:
patent: 3860180 (1975-01-01), Goldhammer
patent: 4260115 (1981-04-01), Hatanaka

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