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:
Feb. 19, 2002
Filed:
Oct. 18, 1999
Robert W. Gundlach, Victor, NY (US);
Aetas Technology Incorporated, Irvine, CA (US);
Abstract
In one corona charging arrangement described in the specification, a coronode supplied with AC voltage is contacted by an insulating member in the form of a mesh of insulating filaments or an imperforate dielectric insulating member or filaments wound around an insulating member and retaining the coronode in fixed position with respect to the insulating member. In another embodiment, the insulating member is a layer of dielectric material coated on a coronode in the form of a corona wire and a capacitor is connected between the AC voltage source and the coronode. By providing an insulating structure for a coronode and applying a DC biased AC voltage to the coronode, improved charging efficiency with respect to prior art arrangements is obtained while reducing generation of ozone and nitrates and increased charging currents are obtained to provide high charging rates without arcing.