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:
Aug. 11, 2009
Filed:
Jun. 30, 2005
Applicants:
Peter Y. Y. Ngai, Alamo, CA (US);
John Zhang, Concord, CA (US);
Hue Ly, Richmond, CA (US);
Inventors:
Assignee:
Acuity Brands, Inc., Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
A heat retaining sleeve for raising the cold spot temperature of a fluorescent lamp is comprised of a base end, a distal end, and a sleeve body sized and shaped to fit over the end of a fluorescent lamp or lamps where the lamp's cold spot exists. The sleeve creates a heat retaining air gap between the inner surface of the sleeve body and the lamp end or ends with the cold spot, and has sufficient length to so that, when fitted over the lamp end or ends, the cold spot temperature is elevated to a temperature that increase the lumen output of the fitted fluorescent lamp or lamps.