US Patent 7977894 Programmed start ballast for gas discharge lamps

Patent 7977894 was granted and assigned to Universal Lighting Technologies on July, 2011 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Universal Lighting Technologies

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

79778940

Patent Inventor Names

Wei Xiong0

Christopher Radzinski0

Date of Patent

July 12, 2011

Patent Application Number

123493710

Date Filed

January 6, 2009

Patent Primary Examiner

‌

Tuyet Thi Vo

Patent abstract

An electronic ballast has control circuitry to provide a pre-heating signal to the filaments of a gas discharge lamp for a predetermined length of time before the lamp is ignited and, further, cease providing the pre-heating signal after the lamp has been ignited.