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. 16, 1981
Filed:
Aug. 13, 1979
Applicant:
Inventor:
Norman J Frame, Milwaukee, WI (US);
Assignee:
W. H. Brady Company, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313101 ; 313102 ; 313495 ;
Abstract
Apparatus for generating ultraviolet light of high intensity without production of heat, including an anode cathodoluminescent layer composed of a phosphor luminescent in the ultraviolet spectrum, a cold cathode electron emitting layer separated by an evacuated region from the cathodoluminescent layer, and a direct current electric field generated between cathode and anode across the evacuated region.