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:
Apr. 25, 1989
Filed:
Nov. 25, 1987
Applicant:
Inventors:
Horst Kriefall, Bad Hersfeld, DE;
Helmut Rohrbach, Ronshausen, DE;
Siegfried Fischer, Bad Hersfeld, DE;
Assignee:
Babcock-Bsh Aktiengesellschaft, Krefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271183 ; 271197 ;
Abstract
The sailing and floating of the sheets which has occurred uncontrollably at certain speeds is avoided so that an exact stacking is permitted at high speeds. The vacuum conveyor is a vacuum belt conveyor whose vacuum box with circulating vacuum belts extends over the entire stacking location and the brake device. The brake device comprises an upper circulating belt supported by a vacuum chamber whose upper strand reaches up to the stacking location. Thus the sheets during the stacking process are guided precisely and do not float freely.