Electricity: measuring and testing – Electric lamp or discharge device – Electric lamp
Patent
1994-11-07
1996-07-23
Wieder, Kenneth A.
Electricity: measuring and testing
Electric lamp or discharge device
Electric lamp
324530, 324556, 324632, G01R 3102
Patent
active
055393179
ABSTRACT:
A novel apparatus for determining the location of an inoperative bulb in a series circuit of decorative Christmas tree type light bulbs is provided which comprises a housing member having an opening adapted to accommodate the physical insertion therein of each of the light bulbs to be tested while in said series circuit. An elongated electromagnetic radiation shield is fixedly secured within said opening and along the inner peripheral surface thereof and an elongated electro-magnetic radiation receptor is fixedly secured along the inner peripheral surface of said shield and insulated therefrom and adapted to intercept electromagnetic radiation which is radiated from a light bulb inserted therein. A battery operated audio amplifier is mounted within said housing and has an input terminal and an output terminal. An energizable signal indicator is fixedly secured to said housing. Finally, means are provided to couple the electromagnetic radiation intercepted by said receptor to the input terminal of said audio amplifier and to couple the output of the audio amplifier to the indicator whereby the indicator is energized whenever electromagnetic radiation is radiated from an inserted light bulb.
REFERENCES:
patent: 4052665 (1977-10-01), Gruenwald
patent: 5047721 (1991-09-01), Farley
patent: 5319312 (1994-06-01), Segilia
patent: 5369363 (1994-11-01), Hey
Brown Glenn W.
Jay Cavender, Inc.
JLJ, Inc.
Wieder Kenneth A.
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