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. 12, 1983
Filed:
Jul. 24, 1980
Applicant:
Inventor:
Auke G van der Kooi, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313552 ; 313490 ; 313634 ;
Abstract
The invention relates to a compact low-pressure mercury vapor discharge lamp consisting of a glass inner member which is closely surrounded by a glass cylindrical outer member, one end of which is hemispherical. The edge at the other end of the outer member is sealed in a gas-tight manner to the inner member. The discharge path between the electrodes may be folded as shown. The discharge is present in a groove, formed in the wall of one of the members. Near the said sealed edge there is an amalgam which is accessible to the discharge space via a narrow channel.