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:
Oct. 27, 2009
Filed:
Mar. 07, 2005
Andrew William Tudhope, Danville, CA (US);
William John Boardman, Colorado Springs, CO (US);
Raul Donate Mercado, Danville, CA (US);
Frederick Contreras, Livermore, CA (US);
Andrew William Tudhope, Danville, CA (US);
William John Boardman, Colorado Springs, CO (US);
Raul Donate Mercado, Danville, CA (US);
Frederick Contreras, Livermore, CA (US);
Sub-One Technology, Inc., Pleasanton, CA (US);
Abstract
A method and system for coating the internal surfaces of a localized area or section of a workpiece is presented. Conductive structures are inserted into one or more openings of a workpiece to define the section to be coated. In some embodiments, a bias voltage is connected to a workpiece section, which functions as a cathode. A gas source and vacuum source are coupled to each conductive structure through a flow control system. The flow control system enables a first opening to function as a gas inlet and a second opening to function as a vacuum exhaust. Only the section encompassed by the conductive structures is coated. When the coating process is completed, a means for varying the conductive structures along the length is utilized to move onto the next section to be coated.