IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0765538
(2013-02-12)
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등록번호 |
US-8728212
(2014-05-20)
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발명자
/ 주소 |
- Brownstein, Jerry M.
- Brownstein, Kathy
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
37 |
초록
▼
A non-woven textile based filter media is produced from polyester fiber generated using recycled polyethylene terephthalate (PET) beverage bottles, and that non-woven textile based filter media is used to make an air filter. By controlling the diameters and lengths of the PET derived polyester fiber
A non-woven textile based filter media is produced from polyester fiber generated using recycled polyethylene terephthalate (PET) beverage bottles, and that non-woven textile based filter media is used to make an air filter. By controlling the diameters and lengths of the PET derived polyester fibers, a non-woven textile based filter media that exhibits a natural Minimum Efficiency Reporting Value (MERV) of about 8 (without requiring electrostatic treatment) and a pressure drop of 2.9 PSI or less can be achieved. A related exemplary embodiment is an air filter fabricated entirely from recycled materials, including a recycled cardboard frame, the non-woven textile based filter media made from recycled PET derived polyester fibers, and a support structure made of recycled plastic or metal wire.
대표청구항
▼
1. An air filter comprising: (a) a frame; and(b) a non-woven textile filter media disposed in the frame, the nonwoven textile filter media comprising longer fibers and shorter fibers, wherein the shorter fibers range from about 5 to about 55 mm in length and make up a majority of the nonwoven textil
1. An air filter comprising: (a) a frame; and(b) a non-woven textile filter media disposed in the frame, the nonwoven textile filter media comprising longer fibers and shorter fibers, wherein the shorter fibers range from about 5 to about 55 mm in length and make up a majority of the nonwoven textile filter media and the longer fibers range from about 60 to about 100 mm in length and make up a minority of the nonwoven textile filter media, the longer fibers and shorter fibers comprise polyester fibers,wherein the non-woven textile filter media weighs from about 0.15 to about 0.35 ounces per square foot and has a thickness of from about 0.5 to about 2.5 cm,wherein the polyester fibers are mono-filaments and comprise a combination of about 1.5 denier fibers and about 4 denier fibers, andwherein a ratio of 1.5 to 4 denier fibers is from about 1:1 to about 1:4. 2. The air filter according to claim 1, wherein the non-woven textile filter media comprises a wadded mass that has been formed via needle punching, felting, thermal bonding, air laid processing or a combination thereof. 3. The air filter according to claim 1, wherein the non-woven textile filter media is in the form of a flat panel or is pleated. 4. The air filter according to claim 1, wherein the non-woven textile filter media comprises recycled polyester. 5. The air filter according to claim 1, further comprising a mesh support. 6. The air filter according to claim 5, wherein the mesh support is formed of metal, plastic, cardboard or a composite thereof. 7. The air filter according to claim 1, wherein the non-woven textile filter media further comprises a thermosetting adhesive. 8. The air filter according to claim 1, wherein the non-woven textile filter media is treated with an herbicide, a bactericide, a fungicide, an antimicrobial agent, a deodorizer, a fragrance, or a combination thereof. 9. A method for filtering air, comprising: (a) providing an air filter; and(b) introducing the air filter into an air flow, such that the air filter filters the air, wherein the air filter comprises: (i) a frame; and(ii) a non-woven textile filter media disposed in the frame, the nonwoven textile filter media comprising longer fibers and shorter fibers, wherein the shorter fibers range from about 5 to about 55 mm in length and make up a majority of the nonwoven textile filter media and the longer fibers range from about 60 to about 100 mm in length and make up a minority of the nonwoven textile filter media, the longer fibers and shorter fibers comprise polyester fibers, wherein the non-woven textile filter media weighs from about 0.15 to about 0.35 ounces per square foot and has a thickness of from about 0.5 to about 2.5 cm,wherein the polyester fibers are mono-filaments and comprise a combination of about 1.5 denier fibers and about 4 denier fibers, andwherein a ratio of 1.5 to 4 denier fibers is from about 1:1 to about 1:4. 10. The method according to claim 9, wherein the non-woven textile filter media is in the form of a flat panel or is pleated. 11. The method according to claim 9, wherein the air filter further comprising a mesh support. 12. A method for making a non-woven textile filter media for filtering air, comprising: (a) providing a quantity of bulk polyester;(b) generating a quantity of polyester fiber having a predefined diameter from the quantity of bulk polyester;(c) cutting the polyester fiber to a predefined length; and(d) generating a non-woven textile filter media from the polyester fiber via needle punching, felting, thermal bonding, air laid processing or a combination thereof, wherein the non-woven textile filter media comprises longer fibers and shorter fibers, wherein the shorter fibers range from about 5 to about 55 mm in length and make up a majority of the nonwoven textile filter media and the longer fibers range from about 60 to about 100 mm in length and make up a minority of the nonwoven textile filter media,wherein the non-woven textile filter media weighs from about 0.15 to about 0.35 ounces per square foot and has a thickness of from about 0.5 to about 2.5 cm,wherein the polyester fibers are mono-filaments and comprise a combination of about 1.5 denier fibers and about 4 denier fibers, andwherein a ratio of 1.5 to 4 denier fibers is from about 1:1 to about 1:4. 13. The method according to claim 12, wherein the non-woven textile filter media is in the form of a flat panel or is pleated. 14. The method according to claim 12, wherein the non-woven textile filter media further comprises a thermosetting adhesive.
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