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:
Sep. 03, 2013
Filed:
Jun. 14, 2011
Geza Zoltan Cseh, Budapest, HU;
Ferenc Fazekas, Budapest, HU;
Peter Lajos Nagy, Budapest, HU;
Laszlo Balla, Kisvarda, HU;
Bela Mezei, Kisvarda, HU;
Geza Zoltan Cseh, Budapest, HU;
Ferenc Fazekas, Budapest, HU;
Peter Lajos Nagy, Budapest, HU;
Laszlo Balla, Kisvarda, HU;
Bela Mezei, Kisvarda, HU;
General Electric Company, Schenectady, NY (US);
Abstract
A lamp includes a light transmissive envelope comprising two spaced apart elliptical portions that together form a hollow interior. The envelope has sealed end portions. Leads are in electrical contact with the filament near the end portions of the envelope for providing power to the lamp. There is a central portion of the envelope that spaces apart the elliptical portions. An electrically conductive filament is disposed in the interior of the envelope. The filament includes coiled-coil portions disposed in the elliptical portions in a coiled-coil shape and a single coil interval portion disposed between the coiled-coil portions at the central portion of the envelope. At least one filament support positions the filament near a center of the envelope. Gas is contained in the interior of the envelope.