Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Material level or thickness responsive
Patent
1995-11-16
1998-05-26
Fortuna, Ana
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Material level or thickness responsive
210 85, 210 91, 210137, 210136, 210134, 210 92, 2102572, B01D 3500
Patent
active
057559570
ABSTRACT:
A water supply shut-off device for a water purifier including a purifier body, a pre-processing filter, a membrane filter, a post-processing filter, a pressure pump, a water tank seated on the purifier body and adapted to store water purified while passing through the pre-processing filter, the membrane filter and the post-processing filter, in this order, by a pumping operation of the pressure pump, and a water supply valve adapted to control the supply of the purified water to the water tank. The water supply shut-off device includes a tank separation sensing unit for sensing a separation of the water tank from the purifier body, a control unit for controlling the overall purifying operation of the water purifier on the basis of the sensing result of the tank separation sensing unit, a pump driving unit for controlling the pressure pump under a control of the control unit to shut off the supply of the purified water to the water tank when the water tank is sensed as being separated from the purifier body, and a valve driving unit for controlling the water supply valve under a control of the control unit to shut off the supply of the purified water to the water tank when the water tank is sensed as being separated from the purifier body.
REFERENCES:
patent: 4626346 (1986-12-01), Hall
patent: 4683054 (1987-07-01), Turnbull
patent: 5082557 (1992-01-01), Grayson et al.
patent: 5454944 (1995-10-01), Clack
patent: 5587089 (1996-12-01), Vogel et al.
Fortuna Ana
Samsung Electronics Co,. Ltd.
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