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Electronic timer and thermoswitch device

  • US 4,079,366 A
  • Filed: 05/20/1976
  • Issued: 03/14/1978
  • Est. Priority Date: 05/20/1976
  • Status: Expired due to Term
First Claim
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1. A device for controlling electrical equipment comprising in combination an electronic clock, a time display device operatively connected to said electronic clock, a time setting keyboard for producing pulses, a memory unit, means operatively connecting said memory unit to said time setting keyboard for injecting ON times and duration times within said memory unit, said means including means to translate said pulses into binary coded decimal format, an address selector counter operatively connected to said keyboard, means whereby each pulse from said keyboard operates said address selector counter, said address selector counter being operatively connected to said memory unit, a comparator module operatively connected to said memory unit and to said address selector counter and an alarm duration counter operatively connected to said comparator module, an alarm output module operatively connected to said alarm duration counter, and a plurality of relay controlled output circuits operatively connected to said alarm output module, said comparator module operating said alarm output module and energizing said relay controlled output circuits when the time entered in said memory unit coincides with the time displayed on said time display device thereby operating said relays.

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