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. 07, 2008
Filed:
Mar. 15, 2006
Applicant:
Olaf Busse, München, DE;
Inventor:
Olaf Busse, München, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a circuit arrangement for operating at least one lamp (LA), which has a first filament (W) and a second filament (W), it comprising an apparatus () for determining a variable which is correlated with the temperature of at least one of the two filaments (W; W). It also relates to a method for operating at least one lamp, which has a first and second filament, a variable correlated with the temperature of at least one of the two filaments being determined prior to restarting the lamp.