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. 24, 1989
Filed:
Jun. 27, 1986
Jan J Cox, Helden-Beringe, NL;
Hendrik Ensing, Velden, NL;
Oce-Nederland B.V., Venlo, NL;
Abstract
A medium to be charged is conveyed past a corona charging device, so that charge emitted by the corona charging device is deposited on the medium surface. A measuring wire disposed between the medium and the corona charging device, but positioned near the medium, collects a part of the emitted charge. A first measuring circuit is used to determine a measure i.sub.d of the charge current collected by the measuring wire. A second measuring circuit determines a measure i.sub.f of that part of the emitted charge current that flows to the medium. In accordance with a predetermined relation, a value E of the surface potential is derived from these measures i.sub.f and i.sub.d.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile