IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0041828
(2011-03-07)
|
등록번호 |
US-8713724
(2014-05-06)
|
발명자
/ 주소 |
- Goettl, John M.
- Barnes, Steve R.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
37 |
초록
▼
The swimming pool floor or spa floor drain assembly includes a drain cover having an annular upper opening to serve as a fluid flow inlet, a fluid flow opening within a drain body below the mouth and a sidewall interconnecting the annular upper opening with the fluid flow opening. A support structur
The swimming pool floor or spa floor drain assembly includes a drain cover having an annular upper opening to serve as a fluid flow inlet, a fluid flow opening within a drain body below the mouth and a sidewall interconnecting the annular upper opening with the fluid flow opening. A support structure positions the plug within the drain body such that a substantial portion of the plug sidewall is spaced apart from the drain body sidewall to define a fluid flow channel having a first comparatively larger cross sectional area in proximity to the drain body mouth and a second comparatively smaller cross sectional area in proximity to the drain body outlet. The variation in cross sectional area from the drain body mouth to the drain body outlet provides a lower fluid flow velocity at the mouth than at the outlet when fluid is transferred through the floor drain assembly.
대표청구항
▼
1. A drain assembly for installation in a floor of a pool, the drain assembly comprising: a cover comprising at least one opening therethrough defining an annular upper opening with a planar cross-sectional area, the annular upper opening serving as a fluid flow inlet from a swimming pool to a pump,
1. A drain assembly for installation in a floor of a pool, the drain assembly comprising: a cover comprising at least one opening therethrough defining an annular upper opening with a planar cross-sectional area, the annular upper opening serving as a fluid flow inlet from a swimming pool to a pump, the cover further comprising a fluid deflecting plug supported within the annular upper opening from a side of the cover such that a majority of the fluid deflecting plug is suspended within the annular upper opening and spaced apart from the cover to define an opening to a fluid flow channel through the cover; anda cylindrical drain body comprising a fluid flow opening with a planar cross-sectional area positioned below and substantially parallel to the annular upper opening cross-sectional area when the cover is coupled to the drain body, wherein the fluid flow opening and the upper opening are non-concentric. 2. The drain assembly of claim 1, wherein the cover further comprises a sidewall between the annular upper opening and the fluid flow opening, the sidewall defining a fluid flow channel extending between the annular upper opening and the fluid flow opening. 3. The drain assembly of claim 1, wherein the drain body includes a second fluid flow opening positioned below the annular upper opening, wherein the second fluid flow opening and the upper opening are non-concentric. 4. The drain assembly of claim 3, the annular upper opening comprising a longitudinal axis perpendicular to its planar cross-sectional area and the second fluid flow opening comprising a longitudinal axis, wherein the longitudinal axis of the annular upper opening and the longitudinal axis of the second fluid flow opening are substantially parallel to each other. 5. The drain assembly of claim 4, wherein the second opening is one of a return line and a hydrostatic inlet. 6. The drain assembly of claim 4, wherein the sidewall comprises an upper vented portion adjacent the upper opening and a lower non-vented portion such that the second fluid flow opening is positioned on a first side of the lower non-vented portion of the sidewall and the fluid flow opening is positioned on a second side of the lower non-vented sidewall separated from the first side such that the second fluid flow opening is separate from the fluid flow channel defined by the sidewall and is substantially not in fluid communication with the fluid flow opening except through the upper vented portion of the sidewall. 7. The drain assembly of claim 4, wherein the drain body further comprises a third fluid flow opening positioned below and non-concentric with the annular upper opening, the third fluid flow opening comprising a longitudinal axis, and wherein the longitudinal axis of the third fluid flow opening is substantially parallel to the longitudinal axis of the annular upper opening and to the longitudinal axis of the second fluid flow opening. 8. The drain assembly of claim 7, wherein the second opening is a return bypass line and the third opening is a hydrostatic inlet. 9. The drain assembly of claim 6, further comprising a connector coupled between the cover sidewall and the fluid flow opening and securing the fluid flow channel from the sidewall to the fluid flow opening. 10. The drain assembly of claim 1, further comprising a first suction line comprising an enclosed body with a first open end coupled to the fluid flow opening and a second open end coupled to a first open end of a second suction line further comprising an enclosed body with a second open end, wherein the first suction line comprising a diameter at least 25% larger than a diameter of the second suction line. 11. The drain assembly of claim 1, further comprising a low velocity flow zone comprising a volumetric flow extending from a top perimeter of the annular upper opening to the second end of the first suction line such that a flow velocity through the second suction line is at least four times greater than the flow velocity within the first suction line and the flow velocity throughout the low velocity flow zone maintains a flow velocity approximately equal to or less than the flow velocity within the first suction line. 12. A drain assembly for installation in a floor of a pool, the drain assembly comprising: a cover defining an annular upper opening with a planar cross-sectional area, the upper opening serving as a fluid flow inlet from a swimming pool to a drain;a drain body comprising an annular fluid flow opening with a planar cross-sectional area positioned below and substantially parallel to the annular upper opening, wherein the drain outlet and the upper opening are non-concentric;wherein the cover comprises a sidewall comprising an upper vented portion adjacent to the annular upper opening and a lower non-vented portion defining a fluid flow channel extending from the annular upper opening to the fluid flow opening of the drain body;a first suction line, comprising a first diameter, coupled to the drain body at a first end of the first suction line and coupled to a second suction line at a second end of the first suction line opposite the first end, the second suction line comprising a second diameter smaller than the first diameter of the first suction line and wherein, every point on the top perimeter of the annular upper opening is at least about 16 inches from the second end of the first suction line when measured linearly along a fluid flow path from each respective point on the top perimeter of the annular upper opening to the second end of the first suction line; anda low velocity flow zone comprising a volumetric flow extending from the top perimeter of the annular upper opening to the second end of the first suction line such that a flow velocity through the first suction line is at least approximately 25% of the flow velocity within the second suction line and the flow velocity throughout the low velocity flow zone maintains a flow velocity approximately equal to or less than the flow velocity within the first suction line;wherein the low velocity flow zone extends outward of the top perimeter. 13. The drain assembly of claim 12, wherein the drain body includes a second fluid flow opening positioned below the annular upper opening, wherein the second fluid flow opening and the upper opening are non-concentric. 14. The drain assembly of claim 13, wherein the second fluid flow opening is one of a return bypass line and a hydrostatic inlet. 15. The drain assembly of claim 13, wherein the second fluid flow opening is positioned on a first side of the lower non-vented portion of the sidewall and the fluid flow opening is positioned on a second side of the lower non-vented sidewall different from the first side such that the second fluid flow opening is separate from the fluid flow channel defined by the non-vented sidewall and is not in fluid communication with the fluid flow opening except through the upper vented portion of the sidewall. 16. The drain assembly of claim 13, the annular upper opening comprising a longitudinal axis perpendicular to the planar cross-sectional area of the annular upper opening and the second fluid flow opening comprising a longitudinal axis, wherein the longitudinal axis of the fluid flow opening and the longitudinal axis of the second fluid flow opening are substantially parallel to each other. 17. The drain assembly of claim 16, wherein the drain body further comprises a third fluid flow opening positioned below and non-concentric with the annular upper opening, the third fluid flow opening comprising a longitudinal axis, and wherein the longitudinal axis of the third fluid flow opening is substantially parallel to the longitudinal axis of the second fluid flow opening. 18. The drain assembly of claim 16, wherein the second opening is a return line and the third opening is a hydrostatic inlet. 19. The drain assembly of claim 16, further comprising a flexible connector coupled between the cover sidewall and the fluid flow opening and securing the fluid flow channel from the sidewall to the fluid flow opening.
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