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:
Jul. 16, 2013
Filed:
Sep. 29, 2010
Valery Godyak, Brookline, MA (US);
Benjamin Alexandrovich, Brookline, MA (US);
Robert Martin, Nicholasville, KY (US);
Valery Godyak, Brookline, MA (US);
Benjamin Alexandrovich, Brookline, MA (US);
Robert Martin, Nicholasville, KY (US);
Osram Sylvania Inc., Danvers, MA (US);
Abstract
A lamp assembly adapted to operate as one of a total number of lamp assemblies that are connected together in series and connected to a ballast. The lamp assembly comprises an electrodeless, closed-loop, tubular lamp envelope enclosing mercury vapor and a buffer gas, and a transformer core disposed around a portion of the lamp envelope. An input winding is disposed on the transformer core so that it has a particular number of turns, N. An auxiliary winding is disposed on the transformer core so that it has a particular number of turns, N. The auxiliary winding is adapted to connect to the ballast and to couple with the input winding. The ratio of the particular number of turns Nto the particular number of turns Nis substantially proportional to the total number of lamp assemblies that are adapted to operate in series together.