Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1992-07-27
1994-07-12
Drodge, Joseph W.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
206 51, 210282, 222 23, 222 36, 222189, 222544, 340603, 116264, B01D 35143, B67D 522
Patent
active
053285972
ABSTRACT:
A self-contained electronic monitoring unit for attachment to a device, such as a water filter, designed to be used until the occurrence of a predetermined event such as a predetermined number of uses, includes transducer for providing distinct outputs such as different audio output signals. A programmed integrated circuit and use detecting means such as electrical contacts detect each use of the device and monitor when the device is operational, when the end of life event is imminent and has occurred. The integrated circuit is programmed to operate the transducer to produce output signals during each use of the device informing the user that the device is operational, that the predetermined event or end of useful life is imminent and that the useful life has expired. The unit includes a battery for supplying power to the transducer and integrated circuit.
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Boldt, Jr. Norton K.
Johnson Kaj A.
Drodge Joseph W.
Jackson Harold L.
The Clorox Corporation
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