Patent ID: 7282846

Claim:
An improved Christmas bulb structure, comprising: a bulb shell; two conductive wires extending from the interior of said bulb shell to the exterior of said bulb shell; an insulator disposed within said bulb shell, separating said two conductive wires; an elastic platelet protruding from said insulator between said two conductive wires; a tungsten filament connecting said elastic platelet and one of said conductive wires; and a transverse conductive wire installed inside said insulator within said bulb shell and electrically coupling said two conductive wires, wherein when said bulb structure is electrically powered, the other conductive wire will be contacted by said elastic platelet and said tungsten filament will be energized, said elastic platelet bending to be spaced from the other conductive wire and de-energize said tungsten filament responsive to heating from said tungsten filament, whereby said transverse conductive wire enables said Christmas bulb structure to possess two current paths.