H - Electricity
01
J
313/172.4
H01J 5/50 (2006.01) H01K 1/40 (2006.01)
Patent
CA 1067562
ABSTRACT: External cylindrical current conductors of an electric lamp are torpedo-shaped at the end which is welded to a metal foil in a pinch seal of the lamp vessel. The torpedo-shaped part has a length which is at least equal to the diameter of the cylindrical part, while the diameter of the torpedo-shaped part at a distance from the cylindrical part of 0.9 times the cylinder diameter is at most equal to half the cylinder diameter. Also when comparatively thick external cur- rent conductors, approximately 1.5mm diameter, are used and at a high temperature of the pinch seal, the lamps will withstand cracking. The welded joint of the conductors to the metal foil is stronger than in known lamps. - 9 -
280521
Notelteirs Victor R.
Vosters Rene M.
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