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. 07, 2003
Filed:
Sep. 19, 2001
Applicant:
Inventor:
Ellis Yan, Russell, OH (US);
Assignee:
Technical Consumer Products, Inc., Aurora, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 ;
U.S. Cl.
CPC ...
H01J 1/62 ;
Abstract
An improved dual circular fluorescent lamp having two or more lamp segments nested in an annular fashion to increase the lumen output. Each annulus is arranged concentrically where each annulus resides in an individual plane that is parallel to previous plane containing another annulus. Each annulus may be made from glass tubing where each annulus is comprised of a different diameter to maintain an equal volume for each annulus. In the preferred embodiment the circular rings coaxially non-coplanar and are arranged in a conical pyramid for typical use as a table or desk lamp, a pendant or ceiling mounted lighting fixture or a torchere floor lamp.