Process for producing an electric lamp with outer bulb

Details Process for producing an electric lamp with outer bulb Process for producing an electric lamp with outer bulb

H - Electricity

01

J

H01J 9/00 (2006.01) H01J 9/20 (2006.01) H01J 9/24 (2006.01) H01J 9/40 (2006.01) H01J 61/34 (2006.01) H01K 1/34 (2006.01) H01K 3/00 (2006.01)

Patent

CA 2470028

The process comprises the provision of a discharge vessel (2) which is closed off on one side, fitting a second tube over part of the discharge vessel and evacuating and filling the volume of the outer bulb via a pumping hole, which remains open in the second extension part within the second tube. This pumping hole is only closed at the end by means of an operation which closes it by rolling.

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