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. 05, 2007
Filed:
Jan. 29, 2004
Applicants:
Stefan Kotter, Hamilton, MA (US);
Gregory Zaslavsky, Marblehead, MA (US);
Fred Whitney, Salem, MA (US);
Inventors:
Stefan Kotter, Hamilton, MA (US);
Gregory Zaslavsky, Marblehead, MA (US);
Fred Whitney, Salem, MA (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 9/00 (2006.01); H01J 9/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for making a ceramic arc tube for high intensity discharge (HID) lighting applications is provided wherein the arc tube contains a high buffer gas pressure and RF induction heating is used to melt a frit material to form a hermetic seal.