Paper shredder with switch-off retardation

Details Paper shredder with switch-off retardation Paper shredder with switch-off retardation

1992-02-07

1992-12-01

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

With automatic control

241100, 241236, 271258, 271265, B02C 2300

Patent

active

051673746

ABSTRACT:
A piston-and-cylinder retarder delays the switch opening of a switch actuated by a sensor in the path of paper introduced through the paper-feed shaft or chute of a paper shredder, thereby eliminating the need for more expensive and complex electronic time-delay systems to ensure that the shredding unit remains switched on until the trailing edge of the paper passes it.

REFERENCES:
patent: 3888478 (1975-06-01), Alderman, Jr. et al.
patent: 4643415 (1987-02-01), Kuehnert
patent: 4815669 (1989-03-01), Fuji
patent: 4817877 (1989-04-01), Itoh et al.
patent: 5039020 (1991-08-01), Leuthold et al.
patent: 5042790 (1991-08-01), Miller et al.

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