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:
Jan. 20, 1981
Filed:
Dec. 20, 1978
Applicant:
Inventors:
Willy J Palmans, Kessel, BE;
William C Waterschoot, St.Niklaas, BE;
Assignee:
AGFA-GEVAERT N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118647 ; 118651 ; 118653 ; 430103 ;
Abstract
A xerographic developing device for depositing xerographic toner upon an image carrying medium without the use of toner carrier beads which includes an applicator roller for transferring toner from a tray towards the image carrying medium via a scraper element mounted at the exit opening of the tray. Improved regulation of the quantity of toner transferred in this manner is achieved by applying a DC-voltage potential between the applicator roller and the scraper.
Palmans, Willy. (1981). Developing device for xerographic copying machines (U.S. Patent No. 4245586). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4245586
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile