Lamp unit having accurately positioned filament

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

Patent

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Details

313315, 339145R, 339154L, H01J 548, H01J 550

Patent

active

044632789

ABSTRACT:
A light bulb is held by a base to which the bulb is secured after being adjusted longitudinally, laterally, and rotationally, as needed, to accurately position the bulb's filament with respect to the base. No cement or adhesive is in contact with the light bulb.

REFERENCES:
patent: 3262001 (1966-07-01), Rijckeart
patent: 4013335 (1977-03-01), Jarkonyi et al.
patent: 4254358 (1981-03-01), Saito
patent: 4310772 (1982-01-01), Tyler et al.
patent: 4358708 (1982-11-01), Silva et al.
patent: 4384236 (1983-05-01), Hellwig et al.

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