The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 04, 1993

Filed:

Aug. 16, 1991
Applicant:
Inventors:

Yoshitaka Ikeda, Nagoya, JP;

Noriyuki Akasaka, Nagoya, JP;

Hisataka Yonezawa, Yokohama, JP;

Wataru Matsubara, Yokohama, JP;

Etsuko Kinoshita, Kobe, JP;

Hidetaka Ono, Yokohama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 34 ; 241 35 ;
Abstract

A control system for a refuse shredder composed of a refuse feeding section and a refuse shredding section detects a stagnating state of refuse to adjust the feed rate, detects idling of the feeding section and restores it to a proper state, detects a tendency of tripping of a shredder drive motor and prevents such tripping, and generally automates an operation of the shredder. The system includes an image pickup device for picking up an image of a refuse inlet of the shredder, an image processor for binary-coding an image signal generated by the image pickup device to obtain a characteristic quantity of the refuse, and control calculator for calculating and outputting a control signal for controlling the feeding section and the shredding section on the basis of the characteristic quantity of the refuse obtained by the image processor. Preferably, the system further includes a current detector for detecting a drive current value of a drive motor for the feeding section and the shredding section, and the control calculator calculates and outputs a control signal for controlling the feeding section and the shredding section on the basis of the above-mentioned characteristic quantity of the refuse as well as the detected drive current value of the drive motor.


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