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Prime switch for liquid dispenser pump

  • US 5,235,214 A
  • Filed: 07/16/1991
  • Issued: 08/10/1993
  • Est. Priority Date: 07/16/1991
  • Status: Expired due to Term
First Claim
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1. An electric circuit for operating a toilet room soap dispenser including:

  • sensor means providing an operating signal in response to the presence of a person positioned to use a soap dispenser,an electric operator which, upon activation, causes the soap dispenser to provide a measured amount of soap,circuit means connecting the sensor means and the electric operator whereby an operating signal from the sensor will cause activation of the electric operator, said connecting circuit means including means for providing a pulse of predetermined duration for activation of the electric operator,the improvement comprising prime circuit means, including a prime mode circuit for providing a predetermined number of pulses to said circuit means for providing a pulse of predetermined duration, manually operable switch means for causing activation of said prime mode circuit whereby a predetermined number of pulses are provided to said circuit means for providing a pulse of predetermined duration to cause a predetermined number of activation of said electric operator to prime the soap dispenser for normal use.

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