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.
Patent No.:
Date of Patent:
Oct. 09, 1979
Filed:
Nov. 03, 1977
Minoru Saito, Odawara, JP;
Yutaka Matsumoto, Oicho, JP;
Nihon Electronic Industry Co., Ltd., Odawara, JP;
Abstract
A system for controlling the speed of a DC motor so that the material fed to a rotary cutter is successively cut to desired lengths. The speed of the rotary cutter driving DC motor is controlled in accordance with a rotary cutter speed control pattern which is determined by the relation between the length of the rotary cutter circumference and the length to which the material is to be cut. This rotary cutter speed control pattern is provided in the form of speed command signals in accordance with a function output derived by setting the length of the rotary cutter circumference, the length to which the material is to be cut and the cutting distance during which the rotary cutter speed and the material travel speed synchronize with each other. The system also accomplishes the necessary control for correcting any error caused between the speed control pattern and the actual rotary cutter speed as well as the required acceleration control of the motor in accordance with the speed control pattern.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile