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:
Dec. 13, 1983
Filed:
Oct. 06, 1980
Werner Kistner, Offenbach am Main, DE;
Abstract
A system for detecting missing or superimposed sheets fed to a sheet processing machine uses a measuring device for generating a signal increasing with the number of superimposed sheets and an evaluating device for emitting an electrical signal when irregularities occur. A pulse transmitter is synchronized to the sheet feed mechanism and operates to emit an initial and final pulse timed to the sheet feed. Electronic storage is reset upon the initial pulse, and operates to integrate values of the measured signal until the final pulse is received. Upon receipt of the final pulse, the stored value is compared to a reference value to detect any irregularities. Preferably a microcomputer is used for signal processing.