IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0609482
(2009-10-30)
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| 등록번호 |
US-8419934
(2013-04-16)
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|
발명자
/ 주소 |
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| 출원인 / 주소 |
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
44 |
초록
▼
A filter assembly includes an outer filter assembly, the outer filter assembly including an outer filter layer of pleated polyester fabric arranged in a hollow cylindrical shape and first and second end caps for retaining the ends of the outer filter layer, and an inner filter assembly including a h
A filter assembly includes an outer filter assembly, the outer filter assembly including an outer filter layer of pleated polyester fabric arranged in a hollow cylindrical shape and first and second end caps for retaining the ends of the outer filter layer, and an inner filter assembly including a hollow cylindrical core having a side wall with a plurality of perforations defined therein, an inner filter layer of meltblown polypropylene disposed around an outer surface of the side wall of the hollow cylindrical core, and first and second end caps. The inner filter assembly is removably received within the outer filter assembly such that the hollow cylindrical core and inner filter layer extend within the hollow cylindrical shape defined by the outer filter layer. The filter assembly is adapted to be mounted in a horizontal orientation within a filtering chamber of a spa device.
대표청구항
▼
1. A filter assembly, comprising: an outer filter assembly, the outer filter assembly including an outer filter layer of pleated polyester fabric defining a first end and a second end; andan inner filter assembly, the inner filter assembly including an inner filter layer of meltblown polypropylene,w
1. A filter assembly, comprising: an outer filter assembly, the outer filter assembly including an outer filter layer of pleated polyester fabric defining a first end and a second end; andan inner filter assembly, the inner filter assembly including an inner filter layer of meltblown polypropylene,wherein the inner filter assembly is operably associated with the outer filter assembly such that the outer filter layer and the inner filter layer extend along a common flow path, andwherein the filter assembly is adapted to be mounted in a horizontal orientation within a filtering chamber of a spa device. 2. The filter assembly according to claim 1, wherein the outer filter assembly is arranged in a hollow cylindrical shape. 3. The filter assembly according to claim 1, wherein the outer filter assembly further comprises a first end cap for retaining the first end of the outer filter layer, and a second end cap for retaining the second end of the outer filter layer. 4. The filter assembly according to claim 1, wherein the inner filter assembly further includes a hollow cylindrical core having a side wall and defining a first end and a second end and the inner filter layer is disposed around an outside surface of the sidewall of the hollow cylindrical core. 5. The filter assembly according to claim 4, wherein the side wall of the inner filter assembly has a plurality of perforations defined therein. 6. The filter assembly according to claim 4, wherein the inner filter assembly further includes a first end cap disposed on the first end of the hollow cylindrical core and a second end cap disposed on the second end of the hollow cylindrical core. 7. The filter assembly according to claim 4, wherein the inner filter layer of meltblown polypropylene has a longitudinal length of 18 inches, an outer diameter of 4.5 inches, an annular thickness of 0.5 inches and a weight of 1.8 grams per square inch of lateral surface area. 8. The filter assembly according to claim 1, wherein the outer filter layer of pleated polyester fabric is arranged in a hollow cylindrical shape and the outer filter assembly further includes a first end cap for retaining the first end of the outer filter layer, and a second end cap for retaining the second end of the outer filter layer,the inner filter assembly includes a hollow cylindrical core having a side wall with a plurality of perforations defined therein and defining a first end and a second end, the inner filter layer being disposed around an outer surface of the side wall of the hollow cylindrical core, a first end cap disposed on the first end of the hollow cylindrical core, and a second end cap disposed on the second end of the hollow cylindrical core,the inner filter assembly is removably received within the outer filter assembly such that the hollow cylindrical core and inner filter layer extend within the hollow cylindrical shape defined by the outer filter layer, such that the common flow path is a radial flow path extending from the outside of the outer filter layer to an interior of the hollow cylindrical core. 9. The filter assembly according to claim 8, wherein the inner filter layer of meltblown polypropylene has a longitudinal length of 18 inches, an outer diameter of 4.5 inches, an annular thickness of 0.5 inches and a weight of 1.8 grams per square inch of lateral surface area. 10. The filter assembly according to claim 8, wherein the second end cap of the inner filter assembly includes a beveled coupling surface along an inner diameter of the second end cap. 11. The filter assembly according to claim 8, wherein the second end cap of the outer filter assembly includes a recessed portion that receives the second end cap of the inner filter assembly in a mating engagement. 12. A spa tub, comprising: a basin including a filtering chamber;a circulation system including at least one inlet in fluid communication with the filtering chamber of the basin, at least one outlet in fluid communication with the basin and a circulation pump for circulating liquid from the at least one inlet to the at least one outlet; anda filter assembly disposed within the filtering chamber of the basin and connected to the at least one inlet of the circulation system, the filter assembly comprising:an outer filter assembly, the outer filter assembly including an outer filter layer of pleated polyester fabric defining a first end and a second end; andan inner filter assembly, the inner filter assembly including an inner filter layer of meltblown polypropylene,wherein the inner filter assembly is operably associated with the outer filter assembly such that the outer filter layer and the inner filter layer extend along a common flow path. 13. The spa tub according to claim 12, wherein the outer filter layer of pleated polyester fabric is arranged in a hollow cylindrical shape and the outer filter assembly further includes a first end cap for retaining the first end of the outer filter layer, and a second end cap for retaining the second end of the outer filter layer,the inner filter assembly includes a hollow cylindrical core having a side wall with a plurality of perforations defined therein and defining a first end and a second end, the inner filter layer being disposed around an outer surface of the side wall of the hollow cylindrical core, a first end cap disposed on the first end of the hollow cylindrical core, and a second end cap disposed on the second end of the hollow cylindrical core,the inner filter assembly is removably received within the outer filter assembly such that the hollow cylindrical core and inner filter layer extend within the hollow cylindrical shape defined by the outer filter layer, such that the common flow path is a radial flow path extending from the outside of the outer filter layer to an interior of the hollow cylindrical core. 14. The spa tub according to claim 13, wherein the filter assembly is mounted in a horizontal orientation within the filtering chamber of the basin and the at least one inlet of the circulation system comprises two inlets connected to the first end cap of the outer filter assembly and the second end cap of the inner filter assembly. 15. The spa tub according to claim 13, wherein the inner filter layer of meltblown polypropylene has a longitudinal length of 18 inches, an outer diameter of 4.5 inches, an annular thickness of 0.5 inches and a weight of 1.8 grams per square inch of lateral surface area. 16. The spa tub according to claim 13, wherein the second end cap of the inner filter assembly includes a beveled coupling surface along an inner diameter of the second end cap. 17. The spa tub according to claim 13, wherein the second end cap of the outer filter assembly includes a recessed portion that receives the second end cap of the inner filter assembly in a mating engagement. 18. The spa tub according to claim 12, wherein the at least one outlet of the circulation system comprises at least one jet nozzle attached to the basin and at least one waterfall formed within the basin.
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