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:
Nov. 23, 1993
Filed:
May. 18, 1992
Applicant:
Inventor:
Michael Kruger, Edingen-Neckarhausen, DE;
Assignee:
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271217 ; 271155 ; 271 31 ;
Abstract
A device for determining the height of a pile of sheets includes a measuring sensor formed as an expansion member and drivable by compressed air with given contacting force towards a top surface of the sheet pile, and a measuring device for determining the position of the top surface of the sheet pile in accordance with a characteristic curve for time rate of change of pressure of the compressed air.