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公开(公告)号：US09995352B2
公开(公告)日：2018-06-12
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
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.
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32.发明授权公开(公告)号：US09367070B2
公开(公告)日：2016-06-14
申请号：US14252035
申请日：2014-04-14
Applicant: Nelson Irrigation Corporation
Inventor： Riley D. Greenwood , Craig B. Nelson
CPC classification number: G05D16/0608 , G05D16/0636 , G05D16/103 , Y10T137/7793
Abstract: A pressure regulator including a housing including an inlet flow passage and an outlet flow passage; a plunger reciprocally mounted in the housing and including a plunger flow passage having an axis offset from an axis of the inlet flow passage, and a stationary valve seat fixed to the housing and positioned between the inlet flow passage and an inlet to the flow passage of the plunger, wherein the valve seat is configured to receive and abut the inlet to the flow passage of the plunger.
Abstract translation: 一种压力调节器，包括：壳体，包括入口流动通道和出口流动通道; 柱塞，其往复安装在所述壳体中并且包括具有偏离所述入口流动通道的轴线的轴线的柱塞流动通道，以及固定到所述壳体并且定位在所述入口流动通道和所述流动通道的入口之间的固定阀座 所述柱塞，其中所述阀座构造成容纳并抵靠所述柱塞的所述流动通道的入口。
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公开(公告)号：US12186766B2
公开(公告)日：2025-01-07
申请号：US17523550
申请日：2021-11-10
Applicant: NELSON IRRIGATION CORPORATION
Inventor： Lee A. Perkins , Craig B. Nelson , Loren Vander Griend
Abstract: A sprinkler nozzle is configured for a sprinkler positioned at a distal end of a center pivot irrigation system. The sprinkler nozzle includes a connection part securable to the sprinkler, and a nozzle opening downstream of the connection part. A nozzle opening downstream of the connection part is part-toroidal shaped and partially blocked or skewed to control water flow to portions of the deflector plate according to a desired wetted area. The part-toroidal shape spans an arc less than 360 degrees. The nozzle enables a custom designed water application to complement the other sprinklers that are on the pivot and can be shaped to also apply water a distance beyond the end of the pivot pipe to match the application rate of the sprinklers along the pivot pipe.
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公开(公告)号：US20220268385A1
公开(公告)日：2022-08-25
申请号：US17181620
申请日：2021-02-22
Applicant: NELSON IRRIGATION CORPORATION
Inventor： Craig B. Nelson , Chad D. Leinweber , Mathew L. Zimmerman
IPC: F16L37/252 , B05B15/65
Abstract: A quick connect coupler includes a female connector having a central bore and a plurality of recesses, and a male connector having a post insertable into the central bore. The male connector has a first tab row with a plurality of first tabs and a second tab row with a plurality of second tabs axially spaced from the plurality of first tabs. The first and second tabs are shaped corresponding to the recesses in the female connector. The first and second tab rows are circumferentially offset to effect a two- or multi-step connection between the female connector and the male connector.
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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.
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Patent Agency Ranking
公开(公告)号：US11002394B2
公开(公告)日：2021-05-11
申请号：US15951740
申请日：2018-04-12
Applicant: NELSON IRRIGATION CORPORATION
Inventor： Mathew L. Zimmerman , Craig B. Nelson , Chad D. Leinweber , Joseph Daniel Sinden
Abstract: A quick connect joint includes a base with first and second lock receivers on opposite sides of the base, and a connection plate including first and second engagement members engageable with the first and second lock receivers, respectively. The first engagement member is displaceable between a release position and lock position, and the first engagement member is rotatable between an insert position and a connect position. The quick connect joint creates a safe and reliable connection.
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37.发明申请公开(公告)号：US20200331019A1
公开(公告)日：2020-10-22
申请号：US16920952
申请日：2020-07-06
Applicant: Nelson Irrigation Corporation
Inventor： Steven E. Crawford , Andrew B. Hellie , Craig B. Nelson
Abstract: A sprinkler includes a pop-up deflector plate that is engageable with a brake assembly in an extended position. A brake module is secured to a sprinkler body and includes a rotatable connector coupled with the brake assembly. The pop-up deflector plate is disposed adjacent the nozzle and engages the rotatable connector in the extended position.
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公开(公告)号：US20200298256A1
公开(公告)日：2020-09-24
申请号：US16898539
申请日：2020-06-11
Applicant: Nelson Irrigation Corporation
Inventor： George L. Sesser , Craig B. Nelson
Abstract: A rigid mount orbitor sprinkler assembly incorporates a deflector plate configuration that is configured for both spinning/rotating motion as well as orbital or wobbling motion around the center of a spool assembly. The sprinkler incorporates structure to reduce drool that may fall in a concentrated area below the sprinkler and to prevent debris from sandy water or the like from accelerating sprinkler component wear. With reduced vibration, the assembly may be rigidly mounted on a center pivot or other supporting structure while achieving the advantages associated with wobbling and rotating sprinkler assemblies.
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公开(公告)号：US20200179960A1
公开(公告)日：2020-06-11
申请号：US16216042
申请日：2018-12-11
Applicant: Nelson Irrigation Corporation
Inventor： Craig B. Nelson , Andrew B. Hellie , Sean M. Scott
Abstract: A sprinkler body for a rotating sprinkler includes a base securable to a source of water under pressure, a plurality of support struts connected to and extending from the base, and a deflector plate support connected to the plurality of support struts and disposed spaced from the base by the support struts. At least one of the plurality of support struts is wedge-shaped with an inward-facing apex. The support struts are configured to create a void in the water spray pattern away from a center pivot pipe and to direct the water spray downward to limit the effect of wind on the spray pattern.
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公开(公告)号：US20190316716A1
公开(公告)日：2019-10-17
申请号：US15951740
申请日：2018-04-12
Applicant: NELSON IRRIGATION CORPORATION
Inventor： Mathew L. Zimmerman , Craig B. Nelson , Chad D. Leinweber , Joseph Daniel Sinden
Abstract: A quick connect joint includes a base with first and second lock receivers on opposite sides of the base, and a connection plate including first and second engagement members engageable with the first and second lock receivers, respectively. The first engagement member is displaceable between a release position and lock position, and the first engagement member is rotatable between an insert position and a connect position. The quick connect joint creates a safe and reliable connection.
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