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Touch free automatic faucet

  • US 9,840,833 B2
  • Filed: 06/02/2015
  • Issued: 12/12/2017
  • Est. Priority Date: 02/02/2010
  • Status: Active Grant
First Claim
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1. A touch-free faucet comprising:

  • a plurality of touch-free sensors including a first touch-free sensor and a second touch-free sensor;

    a spout;

    a water flow control valve;

    said first touch-free sensor is configured to trigger a hardware processor using a first trigger signal to activate a water flow control valve to initiate water flow through a spout of the faucet;

    said second touch-free sensor is configured to trigger said hardware processor using a second trigger signal to activate a first operation of the touch-free faucet based at least in part on comparing a time characteristic of the second trigger signal with a first predetermined time characteristic; and

    said second touch-free sensor is configured to trigger said hardware processor using the second trigger signal to activate a second operation based at least in part on comparing the time characteristic of the second trigger signal with a second predetermined time characteristic, said second predetermined time characteristic different from the first predetermined time characteristic.

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