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:
Apr. 27, 1976
Filed:
Mar. 25, 1974
Applicant:
Inventor:
Robert E Zimmer, Niles, IL (US);
Assignee:
Addressograph Multigraph Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01T / ;
U.S. Cl.
CPC ...
3172 / ; 15 / ; 250324 ;
Abstract
Corona electrodes in electrostatic copying machines take the form of a fine gauge wires, and when subjected to toner an atmosphere with a high density of particle dispersion, can become covered with a deposit which impairs their effectiveness. Cleaning of such a wire is situ without danger of injury thereto is effected by periodically inducing vibrations in the wire, either by controlled mechanical plucking, or by electromagnetically or electrostatically inducing vibrations.