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Stairway lighting system

  • US 4,425,601 A
  • Filed: 08/31/1981
  • Issued: 01/10/1984
  • Est. Priority Date: 08/31/1981
  • Status: Expired due to Fees
First Claim
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1. An apparatus powered by an A.C. line voltage source which comprises a plurality of stairs each of which includes a tread and a riser, said plurality of stairs being useable by one or more persons;

  • transformer means adapted to reduce said A.C. line voltage from said source to provide a reduced A.C. voltage;

    a plurality of light means acting to illuminate said stairs when at least a portion of said reduced A.C. voltage is supplied to said plurality of light means and an electrical circuit including said plurality of light means is formed, each said light means being located in association with a different one of said risers;

    rectifier means associated with said transformer means acting to convert said reduced A.C. voltage to a D.C. voltage;

    a plurality of pressure sensitive switch means associated with said rectifier means so that at least a portion of said D.C. voltage is supplied to said plurality of pressure sensitive switch means, each of said switch means being located in association with a different one of said treads so that said pressure sensitive switch means is closeable in response to pressure from said person placed on said tread;

    with which said pressure sensitive switch means is associated; and

    relay means in association with said plurality of pressure sensitive means and said plurality of light means, and adapted to form said electrical circuit in response to at least one of said pressure sensitive switch means being closed.

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