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:
Jun. 18, 1985
Filed:
Aug. 10, 1984
Applicant:
Inventors:
Stephen G Johnson, Georgetown, MA (US);
William M Labadini, Salisbury, MA (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315 97 ; 315107 ; 315244 ;
Abstract
A process for operating a discharge lamp with an arc drop of not less than about 75% of a given service voltage includes the steps of series connecting a ballast and discharge lamp, coupling the series connected ballast and discharge lamp to a service voltage source and shunting the discharge lamp with a means for developing a pulse potential at or near the beginning of each half-cycle of the service voltage. Also, a series connected inductive ballast and discharge lamp are connected to a service voltage source and a non-linear dielectric element and preheat switching means each shunting the discharge lamp.