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:
Feb. 20, 2001
Filed:
Nov. 09, 1998
Charles Jeffrey Conner, Dayton, OH (US);
James Richard Schlough, Troy, OH (US);
Alan Scott Farr, Huber Heights, OH (US);
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
An apparatus for measuring the thickness of flat products such as sheets or signatures, where the flat products are fed from a pile of signatures to a pocket by a pocket feeder. The apparatus has a light source and light sensor for sensing the light transmitted from the light source. The pocket feeder includes a first roller and second roller, the first roller being arranged against the second roller to form a nip therebetween for receiving flat product, wherein the first roller is deflectable when a flat product enters the nip. The apparatus includes a first reflecting element which is arranged on the first roller for reflecting incident light, a light source for directing light to said first reflecting element and a first sensor element for sensing light reflected from said reflecting element which produces a sensor signal. A calculating unit for calculating the thickness based on that sensor signal is also provided.