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Automated system for monitoring and maintenance of fluid level in swimming pools and other contained bodies of water

  • US 9,410,336 B2
  • Filed: 06/01/2010
  • Issued: 08/09/2016
  • Est. Priority Date: 06/01/2009
  • Status: Active Grant
First Claim
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1. An automated system for monitoring and maintaining fluid level in an environment containing fluid, comprising:

  • a sensor assembly comprising a proximity sensor and a transmitter, said proximity sensor comprising one or more conductors encapsulated in a substantially non-conductive material having a thickness up to 7 mm thick, wherein the conductors are disposed in a lower section of the sensor assembly, said lower section having a generally flat profile and a cross sectional thickness between 2 mm and 10 mm;

    a remote controller, said remote controller is operatively connected to at least one fluid control valve and in communication with the sensor assembly;

    a substantially watertight housing, said housing having a wall that encloses the sensor assembly in a manner such that the one or more conductors does not directly contact the fluid, wherein the housing wall adjacent to the proximity sensor is between 1 mm to 3 mm;

    wherein the sensor assembly senses fluid level changes in the environment by measuring an amount of time required for the conductors to charge to a preset voltage, wherein the sensor assembly transmits a signal to the remote controller when a measured fluid level deviates from a predetermined target value, wherein the remote controller turns the fluid valve on or off in response to the signal.

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