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:
Jul. 02, 1991
Filed:
Dec. 21, 1989
Jagannathan Ravi, Elmira, NY (US);
Kenneth E Pearson, Canisteo, NY (US);
Jay J Palmer, Bath, NY (US);
Ronald C Marburger, Ekeren, BE;
John P Dunn, Hammondsport, NY (US);
Kent L Collins, Hammondsport, NY (US);
Dale E Brabham, Elmira, NY (US);
Kathleen P Bernard, Painted Post, NY (US);
Herbert Bayne, Hornell, NY (US);
John Alderman, Corning, NY (US);
Kris Aelterman, Hoboken, BE;
North American Philips Corporation, New York, NY (US);
Abstract
A 1000 watt arc discharge arc tube assembly comprises two series connected side-by-side arc discharge tubes whose combined break down voltage in sufficient for a standard 2-5 kv starting pulse to simultaneously start both arc tubes without additional structure. A standard ballast, starter and fixture can be used with the arc tube assembly whose overall length is less than 300 millimeters. The lamps are spaced sufficiently apart to preclude detrimental heat transfer effects on one another and sufficiently close to act as a single source of light in standard fixtures normally employing lamps having a single discharge tube.