The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2000
Filed:
Feb. 26, 1998
Robert A Clack, Sun Prairie, WI (US);
Melvin R Hemp, Lodi, WI (US);
Richard E Clack, Windsor, WI (US);
W Roger McPherson, Otsego, MI (US);
Clack Corporation, Windsor, WI (US);
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.