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. 24, 1977
Filed:
Aug. 02, 1976
Applicant:
Inventor:
Charles I McVey, Shaker Heights, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313176 ; 313174 ; 313178 ;
Abstract
A high pressure sodium vapor lamp utilizing an alumina arc tube within an outer envelope has a getter structure comprising a niobium portion operating in a high temperature range and a titanium portion operating in a lower temperature range. The niobium portion includes a connection extending from a niobium end closure structure of the arc tube to the titanium portion. The titanium portion may form one of the lead supports within the outer envelope or it may merely extend along one of the lead supports. This eliminates the need for the conventional barium getter flash which tends to coat the outer envelope and absorb light.