초록 ▼

A water filter includes a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 μm; and a carbon filter medium membrane disposed thereon which is characterized by a mean particle size of no more than 50 μm and a mean pore size of no more t

A water filter includes a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 μm; and a carbon filter medium membrane disposed thereon which is characterized by a mean particle size of no more than 50 μm and a mean pore size of no more than 7.2 μm.

대표청구항 ▼

What is claimed is: 1. A water filter comprising: a. a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 μm; and b. a membrane comprising a carbon filter medium disposed on and in contact with a surface of said support, said carbon filter

What is claimed is: 1. A water filter comprising: a. a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 μm; and b. a membrane comprising a carbon filter medium disposed on and in contact with a surface of said support, said carbon filter medium characterized by a mean particle size in the range of 7 to 21 μm, said membrane characterized by a mean pore size in the range of 1 to 3 μm and a mean porosity in the range of 10 to 30%; wherein said membrane is a first membrane, wherein said carbon filter medium is a first carbon filter medium, and further comprising a second membrane comprising a second carbon filter medium disposed on and in contact with a surface of said first membrane, said second carbon filter medium characterized by a mean particle size in the range of 3.5 to 7 μm, said second membrane characterized by a mean pore size in the range of 0.5 to 1 μm and a mean porosity in the range of 5 to 20%. 2. A water filter in accordance with claim 1 further comprising a third membrane comprising a third carbon filter medium disposed on and in contact with a surface of said second membrane, said third carbon filter medium characterized by a mean particle size of <3.5 μm, said third membrane characterized by a mean pore size of <0.5 μm and a mean porosity in the range of 3 to 10%. 3. A water filtration system comprising: a. a water filter comprising porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 μm; b. a membrane comprising a carbon filter medium disposed on and in contact with a surface of said support, said carbon filter medium characterized by a mean particle size in the range of 7 to 21 μm, said membrane characterized by a mean pore size in the range of 1 to 3 μm and a mean porosity in the range of 10 to 30%; c. means for directing water into said filter; and d. means for purging said water filter; wherein said membrane is a first membrane, wherein said carbon filter medium is a first carbon filter medium, and further comprising a second membrane comprising a second carbon filter medium disposed on and in contact with a surface of said first membrane, said second carbon filter medium characterized by a mean particle size in the range of 3.5 to 7 μm, said second membrane characterized by a mean pore size in the range of 0.5 to 1 μm and a mean porosity in the range of 5 to 20%. 4. A water filtration system in accordance with claim 3 further comprising a third membrane comprising a third carbon filter medium disposed on and in contact with a surface of said second membrane, said third carbon filter medium characterized by a mean particle size of <3.5 μm, said third membrane characterized by a mean pore size of <0.5 μm and a mean porosity in the range of 3 to 10%.