Document shredder

Details Document shredder Document shredder

1978-08-16

1980-03-11

Spicer, Jr., Robert L.

Solid material comminution or disintegration

Apparatus

With automatic control

241222, 241202, B02C 2302

Patent

active

041924673

ABSTRACT:
A document shredder which comprises a strip cutter to cut waste document into strips, a chip cutter to cut the strips into chips, and a minuting device disposed downstream of the chip cutters to cut the chips into pulp-like mass. The minuting device includes a housing having a conical surface formed with cutting teeth, and a conical rotary body formed with cutting teeth in engagement the cutting teeth of the housing.

REFERENCES:
patent: 929960 (1909-08-01), Low
patent: 2435030 (1948-01-01), Brady
patent: 2639096 (1953-05-01), Hinerfeld
patent: 2916985 (1959-12-01), Beach
patent: 3620461 (1971-11-01), Pelleschi
patent: 3837586 (1974-09-01), Perschbacher et al.
patent: 3921920 (1975-11-01), Brocard
patent: 4018148 (1977-04-01), Wolbrink
patent: 4061282 (1977-12-01), Walker et al.

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