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:
Nov. 24, 2009
Filed:
Mar. 29, 2006
Kevin J. Yang, Palos Verdes Est., CA (US);
Kevin J. Yang, Palos Verdes Est., CA (US);
Other;
Abstract
Technology presented in the following utility patent yields a significant innovation within the field of electrical lighting. An alternative configuration of the filter inductor, which serves as part of a passive power factor correction circuit, increases the overall efficiency of fluorescent ballast. The core of the inductor is essentially comprised of a vertically positioned, laminated silicon steel stack within the electronic ballast housing. The vertical orientation allows for a significant reduction in the height and width of the ballast housing, thus creating more effective use of space. Furthermore, each individual laminated silicon steel plate's outside corner angles assume a crescent moon shape. This unique structure serves to provide additional space for the ballast's input lead wires by forming total three (3) of long narrow channels. In order to balance any offset in magnetic flux density caused by the crescent moon shape, the two alternate interior angles of the sheet are arc-shaped.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile