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:
May. 01, 2007
Filed:
Mar. 09, 2005
Raghu Ramaiah, Euclid, OH (US);
Benton Bartley Oukrop, Jeffersonville, IN (US);
Matthew Bugenske, Cleveland Heights, OH (US);
Gary W. Utterback, University Heights, OH (US);
Tom Boyle, Lyndhurst, OH (US);
Balaji Parthasarathy, Bangalore, IN;
Karthik Sivaraman, Mayfield Village, OH (US);
Raghu Ramaiah, Euclid, OH (US);
Benton Bartley Oukrop, Jeffersonville, IN (US);
Matthew Bugenske, Cleveland Heights, OH (US);
Gary W. Utterback, University Heights, OH (US);
Tom Boyle, Lyndhurst, OH (US);
Balaji Parthasarathy, Bangalore, IN;
Karthik Sivaraman, Mayfield Village, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
Discharge tubes for a lamp include a body portion with a first end, a second end, and a tubular member defining an interior area. The tubular member extends along an elongated axis between the first end and the second end. The discharge tube includes a first end portion provided at the first end of the body portion. The first end portion includes a first tapered portion that is tapered in a direction extending substantially perpendicular from the elongated axis. The first tapered portion includes an interior surface facing the interior area. The tapered portion spans between a maximum extent in the direction of the elongated axis and a minimum extent in the direction of the elongated axis.