Heat retaining sleeve

Details Heat retaining sleeve Heat retaining sleeve

2005-06-30

2009-08-11

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

C313S493000, C313S634000

Reexamination Certificate

active

07573184

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.

REFERENCES:
patent: 6078136 (2000-06-01), Sica
U.S. Appl. No. 11/004,481, filed Dec. 3, 2004, Dorogi et al.

Affiliated with

Also associated with

Rating

Heat retaining sleeve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat retaining sleeve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat retaining sleeve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4126046