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. 02, 1985
Filed:
Oct. 03, 1983
John M Anderson, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
It is known that electrical discharges in capillary tubing shows a positive volt-ampere characteristic even for low pressure gas fills. In contrast, conventional fluorescent lamps exhibit a negative volt-ampere characteristic and, accordingly, require special ballast circuits for operation. In the present invention, a fluorescent lamp comprises a plurality of discharge tube sections which are connected by capillary tube sections to provide the necessary ballasting action to prevent lamp current runaway. In one embodiment of the present invention, the ballastless lamp is configured in a compact configuration which may include much simpler ballast components configured in a package similar to a conventional screw-in incandescent lamp.