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:
Nov. 02, 1993
Filed:
May. 26, 1992
Kris J Walker, Webster, NY (US);
Lisa M Schlachter, Rochester, NY (US);
Eugene J Manno, Ontario, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A sheet cutting apparatus is provided for cutting sheets from one or more media supply rolls. A rotary cutter bar cooperates with a stationary bar to sever the media as it is fed between the two bars. The rotary cutter bar is driven by a motor whose output is monitored by a speed control circuit. During a cut cycle, the motor speed may decrease with an increasing load caused, for example, by a thicker weight media being cut. Uncorrected, the motor speed would decrease, causing a deviation in the straightness of the cut. The speed control circuit senses the changes from the normal speed of the motor during the cutting cycle and generates a feedback signal to the motor to raise the speed to the operation level.