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:
Oct. 21, 1997
Filed:
Dec. 10, 1996
MAN Roland Druckmaschinen AG, Offenbach am Main, DE;
Abstract
A gripper cylinder configurable as a printing cylinder of a sheet-fed printing machine, a feeder drum in a sheet-fed printing machine, or a gripper cylinder in a folder unit. The gripper cylinder includes a stationary stator and a gripper spindle assembly mounted to the cylinder. The gripper spindle assembly includes a gripper pivotably mounted to a gripper support. Instead of using a mechanical cam, the gripper can be controllably pivoted together with a cam roller by an armature that can be magnetized but is not permanently magnetic when an electric current flows through the stator thereby magnetizing a housing of the stator. The armature may be magnetically urged against the restoring force of a spring.