IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0205591
(2011-08-08)
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등록번호 |
US-RE45263
(2014-12-02)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Hunter Industries Incorporated
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대리인 / 주소 |
Knobbe, Martens, Olson & Bear, LLP
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인용정보 |
피인용 횟수 :
2 인용 특허 :
46 |
초록
▼
A rotating stream sprinkler including a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along the shaft upstream of the rotor plate; the rotor plate formed with a chamber and one end of the shaft has a stator fixed thereto withi
A rotating stream sprinkler including a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along the shaft upstream of the rotor plate; the rotor plate formed with a chamber and one end of the shaft has a stator fixed thereto within the chamber, the fluid chamber at least partially filled with a viscous fluid; and wherein the chamber is at least partially closed at an upper end thereof by a rotor cap plate; and further wherein an underside of the rotor cap plate is provided with a first plurality of teeth and an upper surface of the stator is provided with a second plurality of mating teeth adapted to engage the first plurality of teeth to enable rotation of the rotor plate with the shaft in the adjustment mode. A flow rate adjustment mechanism includes a throttle member threadably mounted on the shaft for movement relative to the shaft, toward or away from an annular seat having a discontinuous edge such that the flow rate cannot be shut off by having the throttle member engage the seat.
대표청구항
▼
1. A rotating stream sprinkler comprising: a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along said shaft upstream of said rotor plate, said shaft and said nozzle supported within a base component of the sprinkler; said roto
1. A rotating stream sprinkler comprising: a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along said shaft upstream of said rotor plate, said shaft and said nozzle supported within a base component of the sprinkler; said rotor plate formed with a chamber, with one end of said shaft having a stator fixed thereto within said chamber, said chamber at least partially filled with a viscous fluid; and wherein said chamber is at least partially closed at an upper end thereof by a rotor plate cap; and further wherein an underside of said rotor plate cap is provided with a first plurality of teeth and an upper surface of said stator is provided with a second plurality of teeth adapted to engage said first plurality of teeth to enable rotation of said rotor plate with said shaft in an adjustment mode. 2. The rotating stream sprinkler of claim 1 wherein said rotor plate is movable axially on said shaft to enable engagement of said first and second plurality of teeth. 3. The rotating stream sprinkler of claim 1 wherein said rotor plate is formed with a plurality of grooves in an exterior surface thereof adapted to receive a stream from said nozzle, said grooves configured to cause said rotor plate to rotate when said stream impinges on said grooves. 4. The rotating stream sprinkler of claim 1 wherein said shaft has an opposite threaded end and a throttle member threadably mounted on said opposite end, such that when said shaft is rotated with said first and second plurality of teeth engaged in said adjustment mode, said throttle member moves axially on said shaft. 5. The rotating stream sprinkler of claim 4 and further comprising a plurality of vertically arranged, circumferentially spaced ribs axially adjacent said throttle member and serving as a seat for said throttle member when said throttle member is moved to a most restrictive flow position. 6. The rotating stream sprinkler of claim 5 wherein said throttle has a plurality of axial ribs on an exterior surface thereof and adapted to intermesh with a plurality of axially extending ribs on a spider member fixed within said sprinkler body, thereby preventing said throttle member from rotating. 7. The rotating stream sprinkler of claim 6 wherein said spider member is mounted on said shaft axially between said nozzle and said throttle member. 8. The rotating stream sprinkler of claim 7 wherein a threaded collar is press fit on said shaft and said throttle member is threadably mounted on said collar. 9. The rotating stream sprinkler of claim 1 wherein said nozzle comprises radially inner and outer components, configured to emit a stream at an angle to a central axis of said sprinkler. 10. The sprinkler of claim 1 wherein said distributor plate includes a chamber at least partially filled with a viscous fluid and wherein a stator is fixed to said shaft within said chamber. 11. A rotating stream sprinkler assembly comprising a sprinkler having an inlet, an outlet including a stationary nozzle; a rotatable stream distributor plate mounted on a shaft downstream of said nozzle and having stream distribution grooves adapted to receive a stream from said nozzle and to distribute said stream, said shaft and said nozzle supported within a base component of the sprinkler; and means for adjusting the flow rate of water flowing to said nozzle. 12. The rotating stream sprinkler of claim 11 wherein said nozzle is interchangeable with similar nozzles, each having a different sprinkling pattern. 13. The rotating stream sprinkler of claim 12 wherein said means is accessible exteriorly of said sprinkler body. 14. The rotating stream sprinkler of claim 11 wherein said distributor plate includes a chamber at least partially filled with a viscous fluid and wherein a stator is fixed to said shaft within said chamber. 15. The rotating stream sprinkler of claim 11 wherein said nozzle is configured to emit the stream to atmosphere at an angle relative to a center axis of said sprinkler body. 16. The rotating stream sprinkler of claim 15 wherein said shaft lies in said center axis, and wherein said nozzle includes a substantially conical deflector fixed on said shaft. 17. The rotating stream sprinkler of claim 16 wherein said deflector mounts an annular shield extending toward said stream distribution plate. 18. The rotating stream sprinkler of claim 16 wherein said nozzle and said conical deflector cooperate to emit the stream at an angle of about 20° relative to said center axis. 19. The rotating stream sprinkler of claim 11 wherein said stream distributor plate is in the shape of a truncated and inverted cone with grooves formed therein, a radially inner edge thereof forming an apex, said apex lying radially outwardly of an orifice of said nozzle. 20. The rotating stream sprinkler of claim 11 wherein said stream distribution plate has a plurality of circumferentially offset grooves so as to cause said plate to rotate when a stream from said nozzle impinges on said grooves. 21. A rotating stream sprinkler assembly comprising a sprinkler body having an inlet and an outlet including a stationary nozzle; a rotatable stream distributor plate mounted on a shaft for rotation relative to the shaft, the distributor plate located downstream of said nozzle and having stream distribution grooves adapted to receive a stream from said nozzle and to distribute said stream; a flow rate adjustment mechanism comprising a throttle member threadably mounted on said shaft for movement relative to said shaft, toward or away from an annular seat having a discontinuous edge such that the flow rate cannot be shut off by having said throttle member engage said seat. 22. The rotating stream sprinkler of claim 21 wherein said distributor plate rotates relative to said shaft during normal operation but rotates with said shaft during flow rate adjustment. 23. The rotating stream sprinkler of claim 22 including means for preventing said throttle member from rotating with said shaft during said flow rate adjustment. 24. The rotating stream sprinkler of claim 21 wherein said distributor plate includes a chamber at least partially filled with a viscous fluid and wherein a stator is fixed to said shaft within said chamber. 25. The rotating stream sprinkler of claim 21 wherein said discontinuous edge is defined by a plurality of circumferentially spaced, axially extending ribs. 26. A rotating stream sprinkler comprising means for delivering liquid to a nozzle; means downstream of said nozzle for distributing liquid emitted from said nozzle in a desired sprinkling pattern; means for adjusting flow rate of water to said nozzle; and means for controlling a speed of rotation of said means for distributing said liquid. 27. A rotating stream sprinkler comprising a sprinkler body having an inlet and an outlet including a stationary nozzle; a rotatable stream distributor plate mounted on a shaft for rotation relative to the shaft, the distributor plate located downstream of said nozzle and having stream distribution grooves adapted to receive a stream from said nozzle and to distribute said stream; said distributor plate having a chamber formed therein at least partially filled with a viscous fluid, and a stator fixed to said shaft within said chamber, wherein rotational speed of said rotatable stream distributor plate is viscously dampened; and a flow rate adjustment mechanism comprising a throttle member threadably mounted for movement relative to said shaft, toward or away from an annular seat upstream of said throttle member. 28. The rotating stream sprinkler of claim 27 wherein said annular seat has a discontinuous edge such that the flow rate cannot be shut off by having said throttle member engage said seat. 29. A rotating stream sprinkler assembly including a sleeve having an inlet and an outlet including a stationary nozzle; a rotatable stream distributor plate mounted on one end of a shaft for rotation relative to the shaft, said shaft supported in said sleeve, the distributor plate located downstream of said nozzle and having stream distribution grooves adapted to receive a stream from said nozzle and to distribute said stream; a flow rate adjustment mechanism comprising a throttle member threadably mounted on said shaft for movement within said sleeve, relative to said shaft, toward or away from an annular seat having a discontinuous edge such that the flow rate cannot be shut off by having said throttle member engage said seat. 30. A rotating stream sprinkler assembly comprising: a sprinkler having an inlet;an outlet including a nozzle;a rotatable stream distributor plate being positioned downstream of the nozzle and being adapted to receive a stream from the nozzle;a shaft disposed along a central axis of the rotatable stream distributor plate; anda pair of throttle components including a first throttle component engaged with a lower end of the shaft and having at least one flow restriction aperture, and a second throttle component located axially adjacent to the first throttle component and having least one flow port, wherein the shaft and the first throttle component are rotatable in an adjustment mode to rotate the first throttle component relative to the second throttle component such that the at least one flow restriction aperture rotates relative to the at least one flow port to increase or decrease flow through the nozzle thereby increasing or decreasing a radius of throw of water away from the sprinkler without changing an arc of coverage. 31. The rotating stream sprinkler assembly of claim 30, wherein the distributor plate comprises stream distribution grooves adapted to receive the stream from the nozzle and to cause the distributor plate to rotate relative to the shaft in an operational mode to thereby distribute the stream. 32. The rotating stream sprinkler assembly of claim 30, wherein the first throttle component comprises a plurality of lobes extending radially therefrom. 33. The rotating stream sprinkler assembly of claim 32, wherein the at least one flow restriction aperture is positioned between adjacent lobes of the first throttle component. 34. The rotating stream sprinkler assembly of claim 30, wherein the first throttle component is positioned below the second throttle component. 35. The rotating stream sprinkler assembly of claim 30, wherein an upper end of the shaft is engaged with a rotor plate of the assembly. 36. The rotating stream sprinkler assembly of claim 30, wherein the first throttle component is press fit onto the shaft. 37. The rotating stream sprinkler assembly of claim 30, wherein the second throttle component at least partially radially encompasses the first throttle component. 38. The rotating stream sprinkler assembly of claim 30, wherein the nozzle is stationary. 39. The rotating stream sprinkler of claim 30, wherein the nozzle is interchangeable with similar nozzles, each adapted to produce a different sprinkling pattern. 40. The rotating stream sprinkler assembly of claim 30, wherein the shaft is normally non-rotatable in an operational mode. 41. The rotating stream sprinkler assembly of claim 30, wherein the second throttle component is disposed axially between the nozzle and the first throttle component. 42. The rotating stream sprinkler assembly of claim 30, wherein the pair of throttle components are positioned upstream of the nozzle. 43. A method of adjusting flow rate to a nozzle in a rotating stream sprinkler, the method comprising: providing a second throttle component positioned upstream of the nozzle; androtating a shaft of the sprinkler whereby a first throttle component coupled to the shaft rotates to adjust the position of flow restriction apertures of the first throttle component relative to flow ports of the second throttle component,wherein movement of the first throttle component relative to the second throttle component increases or decreases flow through the nozzle. 44. The method of claim 43, wherein the rotating step includes moving the second throttle component between a first restrictive position and a second restrictive position. 45. A rotating stream sprinkler assembly comprising: a sprinkler having an inlet;an outlet including a nozzle;a rotatable stream distributor plate being positioned downstream of the nozzle and being adapted to receive a stream from the nozzle;a shaft disposed along a central axis of the rotatable stream distributor plate; anda pair of throttle components including a first throttle component engaged with a lower end of the shaft, and a second throttle component in fluid communication with the first throttle component and having a flow port, wherein the shaft is rotatable in an adjustment mode to axially move the first throttle component relative to the second throttle component to increase or decrease flow through the nozzle thereby increasing or decreasing a radius of throw of water away from the sprinkler without changing an arc of coverage. 46. The rotating stream sprinkler assembly of claim 45, wherein the first throttle component comprises a threaded component press fit onto the shaft, the threaded component engaging threads of the first throttle component such that rotation of the shaft axially moves the first throttle component up or down via rotation of the threaded component. 47. The rotating stream sprinkler assembly of claim 45, wherein the second throttle component is configured to limit axial downward movement of the first throttle component. 48. The rotating stream sprinkler assembly of claim 47, wherein flow of water through the sprinkler is reduced when the first throttle component is against the second throttle component. 49. The rotating stream sprinkler assembly of claim 45, wherein the distributor plate comprises stream distribution grooves adapted to receive the stream from the nozzle and to cause the distributor plate to rotate relative to the shaft in an operational mode to thereby distribute the stream. 50. The rotating stream sprinkler assembly of claim 45, wherein an upper end of the shaft is engaged with a rotor plate of the assembly. 51. The rotating stream sprinkler assembly of claim 45, wherein the nozzle is stationary. 52. The rotating stream sprinkler of claim 45, wherein the nozzle is interchangeable with similar nozzles, each adapted to produce a different sprinkling pattern.
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