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:
Aug. 06, 2002
Filed:
Mar. 07, 2000
Peter Halemba, Russell, OH (US);
Stuart Park, Burton, OH (US);
Kinetico Incorporated, Newbury, OH (US);
Abstract
A filtering apparatus including a fluid monitoring head and a replaceable filter cartridge removably fastened to the head. The fluid monitoring head includes a shut off mechanism for interrupting fluid flow through the cartridge when a predetermined quantity of fluid has been treated by the filter. The filter cartridge is releasably coupled to the shutoff mechanism when the filter is installed. The shut off mechanism includes a valve element carried by a shaft that forms part of a driven member forming part of the monitoring head. A biasing element exerts a force on the valve element carrying shaft tending to move the valve to a flow blocking position. The shaft engages a keeper or hold off element threadly retained in the filter cartridge. As the driven member rotates, the keeper element is gradually unthreaded until it separates from the filter cartridge, allowing the force of the biasing element to move the valve member into a flow interrupting position. A pressure relief means in the monitoring head allows for easy removal of the cartridge from the monitoring head.