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:
Jul. 03, 1984
Filed:
May. 08, 1981
Applicant:
Inventors:
Volker Eichler, Weinboehla, DD;
Werner Lein, deceased, late of Radebeul, DD;
Assignee:
Veb Kombinat Polygraph 'Werner Lamberz' Leipzig, Leipzig, DD;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; B65H / ;
U.S. Cl.
CPC ...
271152 ; 414118 ;
Abstract
A stack height control apparatus for sheet feeders in sheet processing machines. The apparatus comprises a 2:1 divider connected to stack height sensors, a comparison timing stage connected to the divider, a comparator stage connected to the sensors, to the divider and to the comparison timing stage, a forward-backward shift register connected to the comparator stage and at least two timing stages each connected to the shift register and to the comparator stage. The apparatus allows automatic feeding of sheets to machines such as employed for example as printing presses.