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Series connected light string with filament shunting

  • US 6,765,313 B2
  • Filed: 02/12/2003
  • Issued: 07/20/2004
  • Est. Priority Date: 06/26/1995
  • Status: Expired due to Fees
First Claim
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1. A series-wired light string that operates on pulsating DC current, comprising:

  • a plurality of light bulbs;

    a plurality of light sockets, each light socket of said plurality of light sockets adapted to receive at least one light bulb of said plurality of light bulbs;

    a plurality of voltage-responsive shunts, each shunt being electrically connected in parallel across a respective light socket to maintain the current passing through the light socket in the event that a light bulb is inoperative or is missing from the light socket;

    an AC plug electrically connected to the series-wired light string, said plug including a pair of terminals to be connected to a source of AC supply voltage; and

    a rectifier disposed between said AC supply voltage and said series-wired light string for rectifying the AC supply voltage to produce pulsating DC supply current at all times during operation of said series-wired light string, regardless of whether any of said light bulbs are inoperative or missing.

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