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:
May. 13, 2008
Filed:
Feb. 09, 2005
Applicants:
Christian Görbing, Heidelberg, DE;
Thomas Schmidt, Eppelheim, DE;
Inventors:
Christian Görbing, Heidelberg, DE;
Thomas Schmidt, Eppelheim, DE;
Assignee:
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Primary Examiner:
Int. Cl.
CPC ...
B41F 1/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an apparatus for adapting the pressing force of a control roller on a control can in a sheet-processing machine by a torsion spring, the apparatus either changes the effective spring length or the spring stiffness as a function of the rotational speed of the sheet-processing machine. The spring can be a torsion spring rod with an actuator setting the spring force by changing the prestress. A stiffening element can be connected to the torsion spring rod and set the spring force by changing the spring stiffness of the torsion spring rod.