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:
Oct. 12, 2010
Filed:
Nov. 09, 2007
David W. Johnston, Kensington, NH (US);
William A. George, Lynn, MA (US);
Richard S. Speer, Concord, MA (US);
Gregory Zaslavsky, Marblehead, MA (US);
David W. Johnston, Kensington, NH (US);
William A. George, Lynn, MA (US);
Richard S. Speer, Concord, MA (US);
Gregory Zaslavsky, Marblehead, MA (US);
OSRAM SYLVANIA Inc., Danvers, MA (US);
Abstract
A fluorescent lamp () includes a tubular member or envelope () having an arc generating and sustaining medium () therein. As known, the tubular envelope () is constructed of a suitable glass, for example lime glass. An electrode () is provided in each end of the tubular member () and a phosphor coating () is applied to the interior surface () of the tubular member (). A mercury dispenser () is situated within the tubular member (). The mercury dispenser () includes a body () composed of a material selected from the group consisting of glass and ceramic materials. The body () is provided with a bore (). A first material () capable of wetting mercury coats the bore. In a preferred embodiment the first material () is silver having a thickness between 0.1μ and 8μ. A quantity of mercury () is deposited in the bore () in contact with the first material ().