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:
Jan. 13, 1981
Filed:
Dec. 08, 1978
Applicant:
Inventor:
William A McAllister, Morris Township, Morris County, NJ (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313229 ;
Abstract
A high pressure metal halide discharge lamp of the sodium-scandium type which has the maintenance thereof improved by the addition of a small quantity of lead metal powder. The lead metal powder is added to the discharge sustaining fill in an amount of from between about 0.4 and 1.2 wt. % of the total amount of discharge sustaining fill.