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Water leakage detecting apparatus of water purifier

  • US 5,686,893 A
  • Filed: 11/09/1995
  • Issued: 11/11/1997
  • Est. Priority Date: 11/14/1994
  • Status: Expired due to Fees
First Claim
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1. A water purifier, comprising:

  • a filtering section adapted to be connected to a source of water under pressure for purifying water received therefrom;

    a water storage tank for storing purified water;

    a conduit connecting the water storage tank to the filtering section for conducting purified water from the filtering section to the water storage tank;

    an electrically actuated valve for terminating a supply of purified water to the water storage tank;

    a first sensor for detecting a maximum allowed water level in the tank and emitting a first signal indicating that water has reached the maximum allowed level;

    a water discharge hole formed in the storage tank for discharging excess water from the storage tank when the water level exceeds the maximum allowed level;

    a water drainage conduit arrangement defining a drainage passage communicating with the discharge hole and being normally open for conducting-away the excess water, the conduit arrangement including means permitting backed-up water in the passage to flow out of the passage in the event of the passage becoming clogged;

    a pan arranged to collect the backed-up water flowing out of the passage;

    a second detector for detecting the presence of water in the pan, the second detector emitting a second signal indicating the presence of water in the pan;

    a controller connected to the valve and to the first and second detectors, for closing the valve in response to receipt of either of the first and second signals; and

    a visual display and an audio alarm both connected to the controller to be activated thereby in response to the controller receiving the second signal.

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