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Aroma generating apparatus and driver circuit

  • US 4,795,883 A
  • Filed: 10/13/1987
  • Issued: 01/03/1989
  • Est. Priority Date: 07/08/1987
  • Status: Expired due to Fees
First Claim
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1. An apparatus for generating an aroma from an aroma containing material, said apparatus comprising producing means operative for intermittently producing an aroma from said material over a time period, and circuit means for providing a signal in response to the total accumulated time of intermittent operation of said producing means over said time period and substantially unresponsive to the time of intermittent inoperation of said producing means over said time period.

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