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. 12, 1991
Filed:
Sep. 25, 1986
Applicant:
Inventor:
Sidney A Ottenstein, Spring, TX (US);
Assignee:
Innovative Controls, Incorporated, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315307 ; 315158 ; 315224 ; 315287 ; 315308 ; 315D / ;
Abstract
A high efficiency, electronic ballast is taught for high pressure sodium (HPS) lamps. The ballast is powered by AC line current which is rectified so that 160 volts of direct current lights the lamp. The ballast maintains constant wattage to the lamp and constant line wattage. A striker circuit develops a high voltage, short duration pulse to strike the lamp.