Manufacture of electric lamps

Details Manufacture of electric lamps Manufacture of electric lamps

H - Electricity

01

J

313/104, 313/118

H01J 7/18 (2006.01) H01K 1/50 (2006.01)

Patent

CA 1069576

ABSTRACT OF THE DISCLOSURE: The invention relates to the manufacture of electric lamps containing fluorine in their gas fill. Fluorine can be accurately and conveniently introduced into an electric lamp envelope in the form of a fluorocarbon polymer. If a soluble fluorocarbon polymer, such as a degraded PTFE, is dissolved in a suitable solvent, for example a fluorine- substituted hydrocarbon or halocarbon solvent, the resulting solution can be metered with great accuracy into the lamp envelope and the solvent subsequently evaporated. The invention avoids the difficulties otherwise inherent in dispensing accurate quantities of an extremely reactive gaseous material. - 1 -

269432

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