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. 11, 1988
Filed:
Feb. 03, 1987
Guillaume M Hermes, Terneuzen, NL;
Patrick C Van De Voorde, Terneuzen, NL;
U.S. Philips Corp., New York, NY (US);
Abstract
Low-pressure mercury vapor discharge lamp having a discharge vessel sealed in a gas-tight manner and filled with mercury and a rare gas. The discharge vessel comprises four parallel extending straight tubular portions positioned in a square which are connected together by means of coupling joints to form a discharge passage. Two electrodes arranged at the ends of two tubular portions (4, 6) and are positioned side-by-side on one end of the discharge vessel. A discharge arc is maintained between the two electrodes through the discharge passage during lamp operation. A supporting member the four outer walls of the tube parts located between the four table parts engages the four outer walls of the tube parts near the ends of the tube parts remote from the electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile