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:
Dec. 06, 1983
Filed:
Mar. 26, 1982
John C Knights, Palo Alto, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
In an r.f. glow discharge system, a plurality of hollow electrodes are positioned circumferentially about a central point forming a circular array or squirrel cage. A workpiece is supported within the squirrel cage and relative rotational movement between the squirrel cage and the workpiece is provided. A plurality of apertures are provided along the surface of each electrode and aligned toward the surface of the workpiece. Alternatively, each electrode may further consist of a pair of inner and outer hollow tubes each with a plurality of apertures along its length with the apertures of the inner tube being adjacent to and spaced from the apertures of the outer tube but offset therefrom. The arrangement is best suited for a cylindrically shaped workpiece, e.g., a photoreceptor drum.