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. 07, 1993
Filed:
Aug. 10, 1992
Applicant:
Inventors:
Willi R Dorsam, Hochberg, DE;
Johann E Eitel, Thungen, DE;
Peter E Wagner, Grunsfeld, DE;
Erich G Wieland, Wurzburg, DE;
Assignee:
Koenig & Bauer Aktiengesellschaft, Wurzburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41F / ;
U.S. Cl.
CPC ...
101409 ; 1014151 ; 271195 ; 271276 ;
Abstract
A sheet transport drum utilizes a plurality of drum peripheral envelope surface elements which are each secured to spaced apart disks. Each of these drum envelope surface elements has a plurality of vacuum chambers which are supplied with vacuum in a circumferentially sequential manner. A sheet to be transported by the sheet transport drum is smoothly attracted to the drum's outer perforated envelope plate without wrinkling or buckling.