Liquid filtration system and replaceable filter cartridge usable therewith
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 18, 2000
Issued Date -
N/A
app pub date -
Feb 26, 1998
filing date -
Mar 19, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filter cartridge is capable of at least one-way communication with the base of a filtration system so as to confirm that the filter cartridge is properly configured for installation and use in the filtration system. Transmission and receipt of a filter presence confirmation signal can enhance the effectiveness of the filtration system, e.g., by disabling one or more operational characteristics of the system in the absence of a confirmation signal, and/or by automatically resetting one or more counters of a capacity indicator of the system upon receipt of the confirmation signal. The filter cartridge is particularly well-adapted for use in a filtration system having a flow meter which monitors the flow of liquid through the system. In this case, the filter cartridge is operative to transmit signals to a detector on the associated base, and the operation of the flow meter and of the associated capacity indicator vary depending upon whether or not a filter presence confirmation signal is acquired by the detector.
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