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Alternating current outlet adapter

  • US 4,857,759 A
  • Filed: 02/17/1988
  • Issued: 08/15/1989
  • Est. Priority Date: 02/17/1988
  • Status: Expired due to Fees
First Claim
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1. An alternating current outlet adapter for automatically switching an electric outlet on and off at certain times of the day, in which those certain times of the day vary throughout the year in accordance with a pattern built into the system and are not intended to be altered by the user, which comprises:

  • a household male plug for connection to a household alternating current receptacle;

    an electric clock for providing the time of day and selected periods of the year;

    a battery for insuring that the time and the period of the year are maintained by the clock;

    memory means permanently programmed with unalterable data which are stored to provide switch-on times and switch-off times for each period of the year, said switch-on times and switch-off times being variable for different periods of the year;

    switching means for providing switch-on signals and switch-off signals;

    means for comparing the clock time and period of the year with the switch-on times and switch-off times stored in said memory means and for operating said switching means in accordance therewith;

    an electric outlet for receiving an electrical connector from a lamp or other electric appliance to be switched on and off in accordance with the program; and

    means for coupling the switching means to said male plug and to said electric outlet so that said male plug and said electric outlet will be electrically connected from each switch-on time to the next later switch-off time and electrically disconnected at all other times.

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