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:
Sep. 21, 1976
Filed:
Apr. 24, 1975
Applicant:
Inventors:
Edwin A Urbanek, Penfield, NY (US);
Roger G Teumer, Fairport, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 7544 ; 226195 ;
Abstract
A photoelctrophoretic imaging apparatus for controlling tension of a transported conductive web. In a preferred embodiment, the web tension is controlled by an electrostatic capstan roller driven by an A.C. motor and gear box through an overdriven clutch. Tension is supplied to the web from the electrostatic capstan roller through electrostatic tacking force between the roller and the web. The electrostatic tacking force is obtained by grounding the conductive side of the web and applying a pulsed D.C. voltage to the rolls.