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:
Oct. 08, 1985
Filed:
Oct. 17, 1979
Max L Renardus, Eindhoven, NL;
Bauke Sieswerda, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A low-pressure mercury vapor discharge lamp having a lamp envelope (1) which encloses a folded tubular discharge vessel (2), the discharge vessel being provided with an appendix (6) which is kept at a relatively low temperature by a heat shield (7) located within the lamp envelope. The heat shield shields the outer wall surface of the appendix from the outer wall of the discharge vessel. The cooler appendix serves to maintain the mercury vapor pressure at an optimum value during operation of the lamp.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile