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:
Sep. 12, 1989
Filed:
Dec. 28, 1988
Josephus F Caems, Eindhoven, NL;
Leo F Ooms, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A halogen incandescent lamp has current-supply conductors, at least one of which is enclosed by an insulator tube which is anchored in the wall of the lamp envelope and extends beyond the end of this current-supply conductor as far as the proximity of the filament. The insulator tube protects the lamp during operation in series arrangement at mains voltage from exploding at the end of its life due to overheating by an arc discharge. The speed at which a discharge arc is extinguished can be increased by enclosing each current-supply conductors in its own insulator tube and is further improved if nitrogen or helium is used as an inert gas.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile