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:
Mar. 03, 1981
Filed:
Dec. 22, 1978
Applicant:
Inventor:
Peter Walsh, Stirling, NJ (US);
Assignee:
Duro-Test Corporation, North Bergen, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ;
U.S. Cl.
CPC ...
315248 ; 315 57 ; 315 70 ; 315 85 ; 313242 ;
Abstract
An electrodeless discharge lamp having a sealed elongated toroidal envelope containing an ionizable medium with means for inducing ionization of the medium including a radio frequency energy supply coil formed by coating a transparent conductive material on the envelope. The coil is mounted to reduce the stray radio frequency field and the torroidal envelope is formed to allow for convection cooling of the lamp.