Liquid supply apparatus
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United States of America Patent
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May 2, 1995
Grant Date -
N/A
app pub date -
Apr 15, 1993
filing date -
Apr 15, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
Liquid supply apparatus is disclosed for controlling the supply of liquid to humidifier apparatus. The liquid supply apparatus has a chamber with an inlet through which a liquid such as water is supplied to the chamber. The chamber has a flow detector to detect liquid entering the chamber and a level detector near the base of the chamber in a narrow portion of the chamber which, in conjunction with a calibrated orifice at the chamber outlet, provides an indication of the rate of liquid flow from the chamber. Control of supply of liquid is performed by a magnetically activated valve member.
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