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. 14, 1980
Filed:
Feb. 12, 1979
Applicant:
Inventors:
Bruce R Benwood, Spencerport, NY (US);
Paul A LaChapelle, Fairport, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T / ;
U.S. Cl.
CPC ...
361235 ; 250326 ;
Abstract
In-place primary charging of an electrophotographic imaging member is effected by a corona discharge device which employs variably-biased AC energization of its discharge electrode. During a charging period the potential level of the image member is detected by a sensor, and the bias level of electrode energizing source is varied from an initial value above the nominal primary charge potential toward the nominal potential in response to signals from the sensor.
Benwood, Bruce. (1980). Electrophotographic apparatus with improved corona charging (U.S. Patent No. 4228480). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4228480
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile