WATER TREATMENT SYSTEM
First Claim
1. A water treatment system comprising:
- a prefilter;
a carbon block filter; and
a microbiological interception filter that operate in combination to treat a fluid stream, such as water.
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Accused Products
Abstract
A water treatment system (“WTS”) includes a prefilter, a carbon block filter and a microbiological interception (“MI”) filter that operate in combination to treat a fluid stream, such as water. The WTS may include two prefilters, for example, both a multi-layer nonwoven prefilter and a pleated fabric prefilter. The MI filter may include carbon particles and a binder, and the carbon particles may have a mean particle diameter ranging from about 60 microns to about 80 microns and with a particle size distribution in which no more than about 10% by weight of the particles are larger than about 140 mesh and no more than about 10% by weight are smaller than about 500 mesh. In one embodiment, the water treatment system further includes a volumetric end-of-life filter monitor that monitors the life of the MI filter.
29 Citations
20 Claims
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1. A water treatment system comprising:
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a prefilter; a carbon block filter; and a microbiological interception filter that operate in combination to treat a fluid stream, such as water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A water treatment system comprising:
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a housing defining a filter chamber; and a filter assembly removably connected within said filter chamber, said filter assembly including a prefilter, a carbon block filter and a microbiological interception filter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A water treatment system comprising:
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a housing defining a sealed filter chamber; a filter assembly removably connected within said filter chamber, said filter assembly including a prefilter, a carbon block filter and a microbiological interception filter, wherein said microbiological interception filter includes a microporous structure including plurality of activated carbon particles joined by a binder, and a microbiological interception agent formed on said microporous structure, said activated carbon particles configured to maintain a substantially constant over the useful life of said microbiological interception filter, wherein said activated carbon particles have a mean particle diameter of between about 60 microns and about 80 microns, and in which the +140 micron diameter mesh particles and the −
500 micron diameter mesh particles are each less than about 10% of the particle size distribution;a flow meter capable of sensing the volume of water that has passed through the water treatment system; a timer capable of recording the amount of time that has passed since said microbiological interception filter was installed; and a control system programmed with a preset volume and a preset time at which to signal a user that the microbiological filter needs to be replaced.
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Specification