Dual-flow filter cartridge
AssigneeCuno Incorporated
InventorsLaurence W. Bassett, William Contaxis III
Life of this patent
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AssigneeCuno Incorporated
InventorsLaurence W. Bassett, William Contaxis III
Estimating the term…
A filter cartridge configured to provide two or more levels of fluid filtration or conditioning from within a single filter cartridge is disclosed, the filter cartridge including a housing that defines an interior cavity and has an inlet portion for receiving fluid into the cavity, a first outlet portion for discharging fluid from the housing, and a second outlet portion for discharging fluid from the housing. The filter cartridge also includes a first stage filter disposed within the interior cavity for conditioning fluid passing therethrough, the first stage filter in fluid communication with the inlet portion and the first outlet portion by way of a first flow path, and a second stage filter disposed within the interior cavity of the housing for conditioning fluid passing therethrough, the second stage filter in fluid communication with the inlet portion and the second outlet portion by way of a second flow path.
A filter cartridge comprising:
A filter apparatus comprising:
A filter cartridge comprising:
Dependencies are inferred from the claim text.
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Processes for the treatment of water whereby the filtration technique is of importance: using household-type filters for producing potable water,…
With bag, cage, hose, tube, sleeve or like filtering elements: arranged for inward flow filtration
In series connection: arranged concentrically or coaxially
Plug, tap, or cock filters filtering elements mounted in or on a faucet: reversible faucet filters
Term end not estimated
1. Field of the Invention
The subject invention relates to a filter cartridge for use in fluid filtration, and more particularly, to a filter cartridge configured to provide two or more levels of fluid filtration.
2. Background of the Related Art
So that those having ordinary skill in the art to which the subject invention appertains will more readily understand how to make and use the same, reference may be had to the drawings wherein:
FIG. 1 is perspective view of a filter apparatus constructed in accordance with a preferred embodiment of the subject invention shown in conjunction with a faucet for tap water and a fountain for drinking water;
FIG. 2 is an exploded perspective view of the filter cartridge of FIG. 1 which includes a housing defining an interior cavity, a first stage filter, a second stage filter and a structure directing the flow of fluid through first and second flow paths;
These and other features of the subject invention will become more readily apparent to those having ordinary skill in the art form the following detailed description of the preferred embodiments.
As discussed hereinabove, the present invention overcomes several of the disadvantages associated with prior art fluid filtration cartridges and assemblies. The advantages, and other features of the filtration cartridge disclosed herein, will become more readily apparent to those having ordinary skill in the art from the following detailed description of the preferred embodiments taken in conjunction with the drawings which set forth representative embodiments of the present invention.
Referring now to the drawings wherein like reference numerals identify similar structural elements of the subject invention, there is illustrated in FIG. 1 a filtration cartridge constructed in accordance with a preferred embodiment of the subject invention and designated generally by reference numeral 100. Filter cartridge 100 is illustrated in conjunction with a residential plumbing fixture that includes faucet assembly 20 and drinking fountain assembly 30. In this configuration, filter cartridge 100 is fluidly connected to an unfiltered cold water supply by conduit 10 through filter head 12. The cold water provided by supply conduit 10 is passed through filter cartridge 100 and is selectively discharged through a first discharge conduit 14, a second discharge conduit 16, or simultaneously through both.