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. 10, 1976
Filed:
May. 03, 1974
Seiji Matsumoto, Asaka, JA;
Isoji Takahashi, Tokyo, JA;
Rank Xerox, Ltd., London, EN;
Abstract
A charging device for an electrophotographic apparatus wherein at least a first portion of a control plate is movable relative to a corona generating device. A support member having a photoconductive insulating layer is maintained in spaced relationship relative to the corona generating device. A suitable mechanism is operably associated with the control plate for varying the position of at least the first portion of the control plate relative to the corona generating device to thereby adjust the strength of the corona discharge from the portion of the corona generating device generally adjacent the first portion of the control plate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile