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AssigneeKimberly-Clark Worldwide, Inc.
InventorsMalcolm D. Poirier, Paul Metaxatos, David Mathieu, Jeffrey E. Fish, Kevin P. McGrath
Estimating the term…
A portable liquid filtration system includes a container 22 having a filtering assembly 30 therein and an arrangement for indicating the number of times that the cap has been fitted to the container in order to determine the remaining useful life of the filter. The indicator includes a clutch plate 50 having downwardly extending projections that mate with a plurality of upwardly extending projections on the filtering assembly top 34. The cap includes a vent and may include an arrangement to ensure that the filter is positioned correctly therein. Preferably, the indicator releases the filtering assembly after a predetermined number of uses that approximates the life of the filter.
A portable purification system comprising a container, a cap removably fitted to the container, and an arrangement for indicating the number of times that the cap has been fitted to the container, wherein the arrangement for indicating comprises a clutch having a plurality of downwardly extending projections, the plurality of downwardly extending projections engaging a plurality of mated and upwardly extending resilient projections located on a filter assembly housing a filter, which upwardly extending resilient projections force the plurality of downwardly extending projections to contact the plurality of upwardly extending resilient projections while allowing the plurality of downwardly extending projections to move over the plurality of upwardly extending resilient projections when the cap is rotated relative to the container.
Dependencies are inferred from the claim text.