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:
Apr. 16, 2002
Filed:
Apr. 12, 2000
Applicant:
Inventors:
Robert Erhardt, Schaumburg, IL (US);
Oscar Deurloo, Rosmalen, NL;
Assignee:
Philips Electronics North America Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/700 ;
U.S. Cl.
CPC ...
H05B 3/700 ;
Abstract
Igniter circuitry for a gaseous discharge lamp includes an inductive igniting pulse generating circuit and a capacitive timing circuit. The pulse generating circuit includes a unidirectional voltage-sensitive switch which is electrically connected in series with a capacitor in the timing circuit to unidirectionally limit common current.