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. 01, 2010
Filed:
Aug. 01, 2007
Karlene J. Zuk, Danvers, MA (US);
Arlene Hecker, Beverly, MA (US);
Cathy S. Trumble, Barrington, NH (US);
Joanne M. Browne, Newburyport, MA (US);
Karlene J. Zuk, Danvers, MA (US);
Arlene Hecker, Beverly, MA (US);
Cathy S. Trumble, Barrington, NH (US);
Joanne M. Browne, Newburyport, MA (US);
Osram Sylvania Inc., Danvers, MA (US);
Abstract
A method of making an HID lamp and an HID lamp that includes a ceramic envelope with a ceramic capillary, wherein the capillary has an electrode feed-through therein that is sealed inside the capillary by a frit seal that extends inside the capillary a first distance from a distal end of the capillary, and a ceramic heat sink around at least half an external diameter of the capillary, wherein the heat sink is separated from the envelope and from the distal end of the capillary and the heat sink is in thermally conductive contact with the capillary and has an external diameter at least 1.5 times the external diameter of the capillary. In one preferred embodiment, the heat sink does not overlap the frit seal.