Electric lamp having improved inlead construction
AssigneeGeneral Electric Company
InventorsJames A. Graves, Francis W. Pikus
Life of this patent
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Abstract
An electric lamp construction is described having a pair of conductive inlead wires of dispersion-strengthened copper alloy to serve as the sole means of physical support for a resistive incandescent filament electrically connected thereto, wherein said inlead wires have a surface metallurgical structure of fibrous dispersion-strengthened copper alloy. Said metallurgical surface of the inlead wires can further serve to enhance bonding of other materials thereto including metals such as nickel and aluminum as well as nonmetallic gettering materials such as phosphorous compounds.
Claims25
An electric lamp having a transparent envelope which contains a resistive incandescent filament electrically connected to a pair of conductive inlead wires of dispersion-strengthened copper alloy serving as the sole means of physical support for said resistive incandescent filament, wherein said inlead wires have a surface metallurgical structure of fibrous disperion-strengthened copper alloy.
An electric lamp having a transparent envelope which contains a pair of resistive incandescent filaments and two pair of conductive inlead wires of dispersion-strengthened copper alloy wires serving as the sole physical support for said resistive incandescent filaments and being connected thereto so that each pair of inlead wires is connected to one of said resistive incandescent filaments and one inlead wire of each pair of inlead wires is connected together in common, wherein said inlead wires have a surface metallurgical structure of fibrous dispersion-strengthened copper alloy.
An electric lamp having an outer transparent envelope which contains at least one resistive incandescent filament and an inner sealed arc tube as separate illumination sources and with each of said illumination sources being connected to a pair of conductive inlead wires of dispersion-strengthened copper alloy serving as the sole means of physical support for said illumination sources, wherein said inlead wires have a surface metallurgical structure of fibrous dispersion-strengthened copper alloy.
Dependencies are inferred from the claim text.