Lamp having a glass envelope with fluorocarbon polymer layer

Details Lamp having a glass envelope with fluorocarbon polymer layer Lamp having a glass envelope with fluorocarbon polymer layer

1992-10-14

1993-09-07

DeMeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313493, 313635, H01J 6135, H01J 6142, H01J 6134

Patent

active

052432513

ABSTRACT:
This invention provides an improved layer coated on the outer surface of the envelope of high intensity discharge lamps, halogen lamps and so on. The overcoated layer is provided for preventing glass pieces of the envelope from scattering when the glass envelope is broken. Therefore the improved and strengthened layer comprises a fluorocarbon polymer containing metal oxide grains dispersed therein. The metal oxide grains are dispersed in the fluorocarbon polymer since the overcoated layer is heated at more than 200.degree. C. Further, for the purpose of strengthening the overcoated layer, the overcoated layer has an even density of the metal oxide grains in the fluorocarbon polymer. The even density of the metal oxide grains in the fluorocarbon polymer is obtained only by this invention of the coating method that includes a electrostatic coating step.

REFERENCES:
patent: 3969547 (1976-07-01), Isawa et al.
patent: 4048537 (1977-09-01), Blaisdell et al.
patent: 4804886 (1989-02-01), Nolan et al.
patent: 4888517 (1989-12-01), Keeffe et al.
patent: 5021710 (1991-06-01), Nolan
patent: 5034650 (1991-07-01), Nolan
Patent Abstracts of Japan, unexamined applications, c field, vol. 9, No. 205, Aug. 22, 1985, The Patent Office Japanese Government, Abstract entitled "Process for Coating Fluorine-Containing Resin Film on External Surface of Glass Sphere," 60-71546, p. 38C299.

Affiliated with

Also associated with

Rating

Lamp having a glass envelope with fluorocarbon polymer layer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lamp having a glass envelope with fluorocarbon polymer layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lamp having a glass envelope with fluorocarbon polymer layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-490394