IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0680840
(2007-03-01)
|
등록번호 |
US-7390343
(2008-06-24)
|
발명자
/ 주소 |
- Tepper,Frederick
- Kaledin,Leonid A.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
26 인용 특허 :
80 |
초록
▼
The invention is a device for purifying drinking water that has at least one fibrous structure. Preferably, there is an upstream and downstream fibrous structure. Each fibrous structure is a mixture of nano alumina fibers and second fibers arranged in a matrix to create asymmetric pores and to which
The invention is a device for purifying drinking water that has at least one fibrous structure. Preferably, there is an upstream and downstream fibrous structure. Each fibrous structure is a mixture of nano alumina fibers and second fibers arranged in a matrix to create asymmetric pores and to which fine, ultrafine, or nanosize particles are attached. Preferably, the device has an upstream antimicrobial for sterilization of retained microbes. The device is substantially more efficient at removing soluble contaminants such as halogens from a fluid stream than those previously available and is also able to retain turbidity, bacteria, and virus.
대표청구항
▼
We claim: 1. A filtration device, said filtration device comprising at least one cartridge, each said cartridge having a support member that supports at least one fibrous structure, each said fibrous structure comprising nano alumina fibers and second fibers mixed with said nano alumina fibers, whe
We claim: 1. A filtration device, said filtration device comprising at least one cartridge, each said cartridge having a support member that supports at least one fibrous structure, each said fibrous structure comprising nano alumina fibers and second fibers mixed with said nano alumina fibers, wherein said second fibers are arranged to create asymmetric pores. 2. A filtration device as in claim 1 wherein at least one of said fibrous structures further comprises a plurality of particles deposited on said nano alumina fibers. 3. A filtration device as in claim 2 wherein said particles are selected from the group consisting of fine particles, ultrafine particles, and nanosize particles. 4. A filtration device as in claim 1 wherein at least one of said cartridges comprises 1+y upstream fibrous structures and 1+n downstream fibrous structures, wherein y is any integer from 0 to y, and wherein n is any integer from 0 to n. 5. A filtration device as in claim 2 wherein said particles comprise an antimicrobial agent. 6. A filtration device as in claim 5 wherein said antimicrobial agent is selected from the group consisting of powdered activated carbon, impregnated powdered activated carbon, silver, copper, zinc, at least one halogen, organic chemical powders, and a combination thereof. 7. A filtration device as in claim 6 wherein said impregnated powdered activated carbon is impregnated with an impregnant selected from the group consisting of at least one halogen, silver, zinc, copper, chloramine, and a combination thereof. 8. A filtration device as in claim 6 wherein said impregnated powdered activated carbon is impregnated with iodine. 9. A filtration device as in claim 1 wherein said filtration device is used to purify drinking water. 10. A filtration device as in claim 1 wherein said nano alumina fibers have an aspect ratio that is greater than about 5 and a lesser dimension that is less than about 50 nm. 11. A device for purifying drinking water, said device comprising 1+y upstream fibrous structures and 1+n downstream fibrous structures, wherein y is any integer from 0 to y and wherein n is any integer flom 0 to n, each said fibrous structure comprising nano alumina fibers and second fibers mixed with said nano alumina fibers, said second fibers arranged to create asymmetric pores, said 1+y upstream fibrous structures further comprising a plurality of particles deposited on said nano alumina fibers. 12. A device as in claim 11 wherein said device is combined with an antimicrobial source, said source being positioned upstream from said device. 13. A device as in claim 11 wherein said particles are selected from the group consisting of fine particles, ultrafine particles, and nanosize particles. 14. A device as in claim 11 wherein said particles are selected from the group consisting of an antimicrobial agent, powdered activated carbon, impregnated powdered activated carbon, silver, copper, zinc, at least one halogen, organic chemical powders, and a combination thereof. 15. A device as in claim 11 wherein said particles are iodine. 16. A device as in claim 11 wherein said particles are an antimicrobial agent. 17. A device as in claim 11 wherein said particles are powdered activated carbon. 18. A device as in claim 17 wherein said powdered activated carbon is impregnated. 19. A device as in claim 18 wherein said impregnated powdered activated carbon is impregnated with an impregnant selected from the group consisting of an antimicrobial agent, silver, copper, zinc, chloramine, at least one halogen, and a combination thereof. 20. A device as in claim 18 wherein said impregnated powdered activated carbon is impregnated with iodine. 21. A device as in claim 11 wherein said 1+n downstream fibrous structures further comprise a plurality of particles deposited on said nano alumina fibers. 22. A device as in claim 21 wherein said particles are selected from the group consisting of fine particles, ultrafine particles, and nanosize particles. 23. A device as in claim 21 wherein said particles are selected from the group consisting of an antimicrobial agent, powdered activated carbon, impregnated powdered activated carbon, silver, copper, zinc, at least one halogen, and a combination thereof. 24. A device as in claim 11 wherein said device is capable of sanitizing water to at least one of the following: a. greater than about 6 LRV of bacteria; b. greater than about 4 LRV of virus; and c. greater than about 3 LRV of cysts. 25. A device as in claim 11 wherein at least one of said fibrous structures is capable of retaining at least about 99.9% of fine particle dust. 26. A device as in claim 11 wherein said upstream and downstream fibrous structures are unified. 27. A device as in claim 11 further comprising a prefilter. 28. A filtration device as in claim 4 wherein said upstream and downstream fibrous filters are unified in a single fibrous structure. 29. A filtration device as in claim 1 wherein said device is portable. 30. A filtration device as in claim 29 wherein said portable device operates without the use of a pump.
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