H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/10
H01J 1/00 (2006.01) H01J 61/34 (2006.01)
Patent
CA 1094627
PHN. 8536 ABSTRACT: The invention relates to a low-pressure sodium vapour discharge lamp provided with a U-shaped discharge tube which is enveloped by an elongated outer bulb. The U-bend of the discharge tube is supported by means of a metal element supported internally of thr outer bulb at a change in profile of the outer bulb. The metal element being generally ring-like, located transverse of the outer bulb, and being provided with inwardly projecting tales which contact and fix the location of the bend of the dis- charge tube with respect to the outer bulb.
289194
Schmidt Ernst M.
Van Benthem Willem
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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