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:
Sep. 06, 1994
Filed:
Mar. 08, 1993
Gerhard Hackelborger, Offenbach am Main, DE;
Werner Sondergeld, Offenbach am Main, DE;
Man Roland Druckmaschinen AG, , DE;
Abstract
An improved surface casing for a sheet-guiding printing cylinder comprising a number of elevations having constant cross-sectional areas extending radially therefrom to form a sheet bearing surface. The constant cross-sectional area over the length of the elevations ensures that as the elevations are worn down over time, the overall bearing area does not increase. As a result, smearing of the printing image, which is related to the total bearing area, does not increase over time. Additionally, the total bearing area does not increase for sheets having a low paper weight due to sagging of the sheet between the elevations.