Electrical connectors – Contact comprising cutter – Comprising screw – screw operated cutter – or screw means to...
Patent
1994-08-11
1996-03-19
Pirlot, David L.
Electrical connectors
Contact comprising cutter
Comprising screw, screw operated cutter, or screw means to...
439409, H01R 424
Patent
active
054999316
ABSTRACT:
The invention relates to an improved lamp conducting structure, and more particularly to a lamp conducting structure design allowing for easy assembly with power wires of different thickness. A lower part of the lamp has a cylindrical body with an external thread and a cylindrical body bottom face is provided with radial inter-crossed slots. The slots are narrow and wide slots of different width and depth, and the cross junction of the two slots is provided with two diagonally installed metal clips with sharp needle heads facing downward. The user may select narrow or wide slots based on the power wire thickness, or even further incorporate a "U" type bar shaped cushion installed in the slot. The power wires are placed into the slots from the lamp cylindrical body bottom face and the external thread of the lamp bottom cylindrical structure is engaged with the internal thread of the lower frame top ring slot. The power wires are pressed by the lower frame top central cylinder to cause the conductive metal clip sharp needle to cut off the insulation layers of the power wires to contact with the metal part of the power wire. By this design, the lamp can be easily connected with power wires of different thickness.
REFERENCES:
patent: 2758280 (1956-08-01), More
patent: 2779842 (1957-01-01), Walker
patent: 2795768 (1957-06-01), Onckworth et al.
patent: 2848643 (1958-08-01), Spataro
patent: 2981921 (1961-04-01), Safford
patent: 4749367 (1988-07-01), Fraser
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