Electric lamp

Electric lamp and discharge devices – With envelope – Having base and connector

Patent

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Details

313315, 439615, 439616, H01K 146

Patent

active

051874075

ABSTRACT:
The electric lamp is provided with a cap (3) having a base (9) of insulating material bearing a metal disc (4) on an outer surface thereof. The disc (4) and the base (9) have an opening (10) through which a current supply conductor (6) extends, that is attached to the disc (4) by means of solder (11). A girdle of holes (12) in the disc (4) surrounds the opening (10) and the solder (11). The girdle of holes (12) prevents the soldering flux and the solder (11) from flowing over the whole surface of the disc, thereby limiting the amount of flux and solder used.

REFERENCES:
patent: 2188298 (1940-01-01), Hitchcock
patent: 2626369 (1953-01-01), Dailey
patent: 5039905 (1991-08-01), Essers et al.

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