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. 01, 1980
Filed:
Dec. 12, 1978
Applicant:
Inventor:
Ranbir S Bhalla, Montville Township, Morris County, NJ (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313218 ; 313211 ; 3133 / ;
Abstract
An improved composite emission material for use in the electrodes of high intensity (HID) lamps comprising a reacted mixture of barium zirconate and strontium zirconate wherein the ratio of barium to strontium is from between 9:1 to 1:1 and is preferably 4:1. The improved emission material has a lower vapor pressure, higher melting point and a reduced processing time as compared to prior art emission materials.