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:
Jan. 30, 1990
Filed:
Oct. 08, 1987
Leo F Ooms, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The electric incandescent lamp has a filament connected to current supply conductors and kept taut by a frame of longitudinal arc discharge conductors and transverse insulators. The arc discharge conductors are each connected to a point on the current supply conductors, at least one of them being connected through a arc discharge interruption fuse. When switching on and operating the lamp, the arc discharge interruption fuses and the arc discharge conductors are not included in the current circuit. The arc discharge conductors are positioned with respect to the filament so that upon formation of a discharge arc between fragments of the filament the arc flashes over to the arc discharge conductors. Only upon flash over of the arc to the arc discharge conductors does current flow through the arc discharge interruption fuse. The fuse interrupts the current and extinguishes the arc.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile