Back to results
US 5,318,703 AGranted
Water filter module
AssigneeUltraPure Systems, Inc.
InventorRandy B. Heiligman
Life of this patent
Estimating the term…
Abstract
Water filter module for filtration of water used to brew coffee, having a series of vertically aligned filters placed in a body member and having a charcoal filtration member bounded by screen at its upper and lower ends and in the water filter module.
Claims12
A water filter for positioning between a source of hot water and ground coffee beans to filter impurities from the hot water used in coffee brewing, the water filter comprising:
- a filter housing defining a chamber, the cylindrical filter housing having an upper edge and a lower edge, a flared annular lip extending upwardly and outwardly from the upper edge to define a funnel above the chamber for receiving and preventing overflow of the hot water, and a first planar horizontal mesh member extending across the upper edge to separate the funnel from the chamber;
- a first mesh screen positioned within the chamber and adjacent to the horizontal mesh member;
- loose carbon granules within the chamber below the first mesh screen;
- a second mesh screen positioned within the chamber below the loose carbon granules so that the loose carbon granules are contained within the chamber between the first mesh screen and the second mesh screen;
- and
- a bottom member positioned adjacent the second screen for engaging the filter housing adjacent to the lower edge thereof to close the filter housing with the first mesh screen, loose carbon granules, and the second mesh screen contained therein, the bottom member including a plurality of spoke members for supporting the second mesh screen wherein each of the plurality of spoke members extends outward from a center hub to the filter housing adjacent the lower edge thereof.
3 more elements
A water filter for positioning between a source of hot water and ground coffee beans to filter impurities from the hot water for making coffee, the water filter comprising:
- a cylindrical filter housing defining a chamber, the cylindrical filter housing having an upper edge and a lower edge, and a flared annular lip extending upwardly and outwardly from the upper edge to define a funnel above the chamber for receiving and preventing overflow of the hot water;
- a first filter medium positioned adjacent to the upper edge for filtering impurities from the hot water received from the funnel;
- loose carbon granules within the chamber below the first filter medium for filtering impurities from the hot water passing through the first filter medium;
- a second filter medium positioned within the chamber below the loose carbon granules so that the loose carbon granules are contained within the chamber between the first filter medium and the second filter medium;
- a bottom member positioned below the second filter medium for engaging the filter housing adjacent to the lower edge thereof to close the filter housing with the first filter medium, loose carbon granules, and the second filter medium contained therein;
- and
- a plurality of spoke members positioned adjacent to the second filter medium for supporting the second filter medium, wherein each of the plurality of spoke members extends outward from a center hub to the filter housing adjacent the lower edge thereof.
4 more elements
Dependencies are inferred from the claim text.