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    Sprinkler assembly having coiled weight
    1.
    发明授权
    Sprinkler assembly having coiled weight 有权

    公开(公告)号：US11376621B2

    公开(公告)日：2022-07-05

    申请号：US15953728

    申请日：2018-04-16

    Applicant: Nelson Irrigation Corporation

    Inventor： Sean M. Scott ,  Riley D. Greenwood ,  Craig B. Nelson

    IPC: B05B15/622 ,  B05B15/62 ,  A01G25/00 ,  A01G25/09

    Abstract: A weighted inverted sprinkler assembly adapted for use with a drop hose of an irrigation system is disclosed. The assembly comprises a coiled weight formed from a coiled wire, a sprinkler fluidly associated with the drop hose, and a coiled weight support structure. A pressure regulator may be provided in fluid associated with the irrigation drop hose and the sprinkler. The coiled weight has a shape that is selected for use with a particular sprinkler assembly. The shape may be an elongated shape for use with an elongated coiled weight support structure, a beehive shape for use with a pressure regulator having a collar to support the coiled weight, and a pear shape for use with a pressure regulator having a flared housing. The coiled weight is preferably formed from a single coiled wire although two or more weights may be used in combination in a given application.

    Drain check in pressure regulator
    2.
    发明授权
    Drain check in pressure regulator 有权

    公开(公告)号：US10906052B2

    公开(公告)日：2021-02-02

    申请号：US15984066

    申请日：2018-05-18

    Applicant: Nelson Irrigation Corporation

    Inventor： Riley D. Greenwood

    IPC: B05B1/30 ,  B05B12/08 ,  G05D16/02 ,  A01G25/16 ,  G05D16/06

    Abstract: A pressure regulator includes a housing having an inlet cap with an inlet flow passage and an outlet cap with an outlet flow passage. A plunger is reciprocally mounted in the housing. A stationary regulator valve seat is disposed between the inlet flow passage and an inlet to the plunger. A drain check shuttle is disposed in the inlet cap and positioned downstream of the regulator valve seat to prevent water from draining out of the regulator when an inlet water pressure is below a predetermined threshold.

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE
    3.
    发明申请
    VISCOUS ROTATIONAL SPEED CONTROL DEVICE 有权
    VISCOUS旋转速度控制装置

    公开(公告)号：US20160201744A1

    公开(公告)日：2016-07-14

    申请号：US14986338

    申请日：2015-12-31

    Applicant: Nelson Irrigation Corporation

    Inventor： George L. Sesser ,  Lee A. Perkins ,  Craig B. Nelson ,  Riley D. Greenwood

    IPC: F16D57/02 ,  F16D57/00

    CPC classification number: F16D57/02 ,  A01G25/092 ,  B05B3/005 ,  B05B15/70 ,  B60T10/02 ,  F16D57/00 ,  F16D57/007

    Abstract: A rotational speed control device includes a housing containing a viscous fluid, a shaft disposed in the housing and rotatable relative to the housing, a hub assembly secured to the shaft for rotation with the shaft, and a rotor coupled with the shaft by a frictional engagement with the hub assembly. A spring is disposed in the housing and acts on the rotor to bias the rotor axially on the shaft in a low torque direction. A braking torque between the rotor and the housing is varied according to an axial position of the rotor on the shaft.

    Abstract translation: 旋转速度控制装置包括容纳粘性流体的壳体，设置在壳体中并相对于壳体可旋转的轴;固定到轴上以与轴一起旋转的轮毂组件，以及通过摩擦接合与轴连接的转子 与轮毂组件。 弹簧设置在壳体中并且作用在转子上以在低扭矩方向轴向偏置轴上的转子。 转子和壳体之间的制动力矩根据转子在轴上的轴向位置而变化。

    Flow control device with drain check
    7.
    发明授权
    Flow control device with drain check 有权

    公开(公告)号：US11511290B2

    公开(公告)日：2022-11-29

    申请号：US17145037

    申请日：2021-01-08

    Applicant: Nelson Irrigation Corporation

    Inventor： Riley D. Greenwood

    IPC: B05B1/30 ,  B05B12/08 ,  G05D16/02 ,  G05D16/06 ,  A01G25/16 ,  F16K15/08

    Abstract: A flow control device including: a housing including a flow passage extending from an inlet, through the housing to an outlet; a hollow tube within the housing defining a tube passage included in the flow passage of the housing; a valve seat in the housing and disposed between the inlet to the flow passage and an inlet to the tube passage of the hollow tube; and a drain check shuttle within the housing and configured to move reciprocally with respect to both the housing and the hollow tube, wherein the drain check shuttle has: a first position within the housing at which the drain check shuttle abuts the valve seat, and closes a gap between the valve seat and the inlet to the hollow tube; and a second position displaced from the valve seat and which opens the gap.

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE
    9.
    发明申请
    VISCOUS ROTATIONAL SPEED CONTROL DEVICE 有权
    VISCOUS旋转速度控制装置

    公开(公告)号：US20160201743A1

    公开(公告)日：2016-07-14

    申请号：US14789415

    申请日：2015-07-01

    Applicant: Nelson Irrigation Corporation

    Inventor： George L. Sesser ,  Lee A. Perkins ,  Craig B. Nelson ,  Riley D. Greenwood

    IPC: F16D57/00 ,  F16D57/02

    CPC classification number: F16D57/007 ,  A01G25/092 ,  B05B3/005 ,  B05B3/0486 ,  B60T10/02 ,  F16D57/02

    Abstract: A rotational speed control device maintains a shaft rotation speed. The device includes a housing containing a viscous fluid and a shaft disposed in the housing and rotatable relative to the housing. A rotor is coupled with the shaft for rotation in the viscous fluid. In one arrangement, the rotor is axially displaceable along the shaft between a low-shear position and a high-shear position. A spring mechanism is disposed in the housing and biases the rotor toward the low-shear position. In another arrangement, the rotor may be designed to cooperate with the housing or other nonrotating features within the housing to vary a shear gap according to radially expanding components of the rotor. The rotor, housing and spring mechanism can be designed to cooperate to create large changes in braking torque in response to small changes in shaft rotational speed. This allows the rotation speed to be controlled within a relatively narrow range.

    Abstract translation: 旋转速度控制装置保持轴的转速。 该装置包括容纳粘性流体的壳体和设置在壳体中并相对于壳体可旋转的轴。 转子与轴联接以在粘性流体中旋转。 在一种布置中，转子在低剪切位置和高剪切位置之间沿着轴可轴向移动。 弹簧机构设置在壳体中，并将​​转子朝向低剪切位置偏压。 在另一种布置中，转子可以被设计成与外壳内的壳体或其它非旋转特征配合，以根据转子的径向扩张的部件改变剪切间隙。 转子，壳体和弹簧机构可以设计成协调，以响应于轴转速的小变化而产生制动转矩的大的变化。 这允许将旋转速度控制在相对较窄的范围内。

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE
    10.
    发明申请
    VISCOUS ROTATIONAL SPEED CONTROL DEVICE 有权
    VISCOUS旋转速度控制装置

    公开(公告)号：US20160201742A1

    公开(公告)日：2016-07-14

    申请号：US14699445

    申请日：2015-04-29

    Applicant: Nelson Irrigation Corporation

    Inventor： Lee A. Perkins ,  George L. Sesser ,  Craig B. Nelson ,  Riley D. Greenwood

    IPC: F16D57/00 ,  F16D57/02

    CPC classification number: F16D57/007 ,  A01G25/092 ,  B05B3/005 ,  B05B3/0486 ,  B60T10/02 ,  F16D57/02

    Abstract: A rotational speed control device maintains a shaft rotation speed. The device includes a housing containing a viscous fluid and a shaft disposed in the housing and rotatable relative to the housing. A rotor is coupled with the shaft for rotation in the viscous fluid. The rotor is axially displaceable along the shaft between a low-shear position and a high-shear position. A spring mechanism is disposed in the housing and biases the rotor toward the low-shear position. The rotor may be designed to cooperate with the housing or other nonrotating features within the housing to vary a shear gap according to the axial position of the rotor. The rotor, housing and spring mechanism can be designed to cooperate to create large changes in braking torque in response to small changes in shaft rotational speed. This allows the rotation speed to be controlled within a relatively narrow range.

    Abstract translation: 旋转速度控制装置保持轴的转速。 该装置包括容纳粘性流体的壳体和设置在壳体中并相对于壳体可旋转的轴。 转子与轴联接以在粘性流体中旋转。 转子可以沿着轴在低剪切位置和高剪切位置之间轴向移动。 弹簧机构设置在壳体中，并将​​转子朝向低剪切位置偏压。 转子可以设计成与壳体内的壳体或其它非旋转特征配合，以根据转子的轴向位置改变剪切间隙。 转子，壳体和弹簧机构可以设计成协调，以响应于轴转速的小变化而产生制动转矩的大的变化。 这允许将旋转速度控制在相对较窄的范围内。

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