Electric lamp and discharge devices: systems – Plural series connected load devices – Christmas lights
Patent
1996-11-06
1997-09-23
Pascal, Robert
Electric lamp and discharge devices: systems
Plural series connected load devices
Christmas lights
439419, 439667, H05B 3702
Patent
active
056708475
ABSTRACT:
A Christmas tree light system including an electrical receptacle connected to power supply, and electrical wire having an electrical plug at one end connected to the electrical receptacle, and a plurality of lamp sockets respectively connected to the electrical wire to hold a respective bulb, wherein each lamp socket has an insulative plate supported on a spring member and forced upwards by it to disconnect a metal connecting plate from the center metal contact plate, which is adapted for contacting the tip contact of the bulb; the electrical plug has a cartridge fuse for overload protection, and protective means for shielding the conducting blades of the cartridge fuse; the electrical receptacle has movable stop means forced by spring means to block the way between the blade insertion slots and the electrical terminals.
REFERENCES:
patent: 2393180 (1946-01-01), Merrill
patent: 2688669 (1954-09-01), Quill
patent: 2747168 (1956-05-01), Arena
patent: 3644867 (1972-02-01), Krause
patent: 5385485 (1995-01-01), Fu
patent: 5562481 (1996-10-01), Myson
Pascal Robert
Shingleton Michael
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