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Systems and methods for sensing a fluid supply status

  • US 6,992,590 B1
  • Filed: 04/27/2001
  • Issued: 01/31/2006
  • Est. Priority Date: 04/27/2001
  • Status: Expired due to Fees
First Claim
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1. A system, comprising:

  • a container containing a fluid;

    a fluid line coupled with the container;

    a pump configured to pump the fluid out of the container through the fluid line;

    a sensor comprising a wireless transmitter, the sensor configured to sense a pressure in the fluid line and to periodically transmit, using the wireless transmitter, an alarm message when the pressure reaches an alarm threshold; and

    a control unit comprising a wireless receiver, the control unit configured to receive the alarm message, using the wireless receiver, and to output an alarm indication in response to the alarm message.

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