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:
Mar. 24, 1998
Filed:
Feb. 27, 1996
Applicant:
Inventor:
Henry Frazier Pruett, St. Paris, OH (US);
Assignee:
Grimes Aerospace Company, Urbana, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315247 ; 315324 ; 315307 ;
Abstract
A circuit arrangement controls power to a fluorescent lamp rather than controlling current. Since light output is proportional to power, flicker control is improved and lamp life is extended.