Gte Products Corporation

Robert S Coney

Stephen P Senft

William L Berry

An improved electric lamp including an envelope having a sealed end portion, a coiled tungsten filament structure within the envelope, a pair of tungsten lead-in conductors sealed within the envelope and coupled to the filament structure, a first insulative (e.g., quartz) bridge disposed within the envelope between the filament and the envelope's sealed end, and a pair of support wires which also extend within the envelope adjacent the lead-in conductors respectively, to provide support for the contained filament structure. The improvement comprises reinforcement means in the form of a pair of platinum-clad molybdenum wire members each having a smaller diameter than that of the lead-in conductors and support wires, each of these wire members being welded to a respective pair of said conductor and support wire elements at a location between the lower bridge and sealed end. The wire members may be of curvilinear (e.g. U-shaped) configuration or of straight configuration, or a combination of both.

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Winchester, KY, United States of America

Robert S Coney