公开(公告)号：US11933408B2

公开(公告)日：2024-03-19

申请号：US17474437

申请日：2021-09-14

Applicant: Nelson Irrigation Corporation

Inventor： Craig B. Nelson ,  Riley D. Greenwood

IPC: F16K31/122 ,  F16K1/12 ,  G05D16/06 ,  G05D16/18 ,  G05D16/20 ,  F16K17/04 ,  F16K17/08 ,  F16K17/164 ,  F16K31/363 ,  F16K31/365

CPC classification number: F16K1/126 ,  F16K1/123 ,  G05D16/0608 ,  G05D16/2095 ,  G05D16/2097 ,  F16K17/0413 ,  F16K17/082 ,  F16K17/085 ,  F16K17/164 ,  F16K31/1223 ,  F16K31/1228 ,  F16K31/363 ,  F16K31/365 ,  G05D16/185 ,  G05D16/187

Abstract: A flow control device includes a housing with an inlet and an outlet and a flow conduit disposed in the housing. The inlet, the flow conduit, and the outlet define a flow passage. A valve seat is disposed in the housing downstream of the inlet, and a shuttle is movably disposed in the housing and displaceable between a closed position engaging the valve seat to close the flow passage and an open position spaced from the valve seat to open the flow passage. A sealed chamber is defined between the housing and the flow conduit. A port coupled with a source of pressurized fluid communicates with the sealed chamber, where the shuttle is displaceable between the closed position and the open position based on a pressure in the sealed chamber. The threshold water pressure for displacing the flow conduit may be adjustable by modifying the pressure in the sealed chamber.

公开(公告)号：US11885450B2

公开(公告)日：2024-01-30

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

CPC classification number: 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.

公开(公告)号：US11745207B2

公开(公告)日：2023-09-05

申请号：US16920952

申请日：2020-07-06

Applicant: Nelson Irrigation Corporation

Inventor： Steven E. Crawford ,  Andrew B. Hellie ,  Craig B. Nelson

IPC: B05B15/16 ,  B05B3/00 ,  B05B3/04 ,  B05B15/65 ,  B05B3/06 ,  B05B15/50 ,  B05B1/32 ,  B05B15/74

CPC classification number: B05B15/16 ,  B05B3/003 ,  B05B3/005 ,  B05B3/0486 ,  B05B3/063 ,  B05B15/50 ,  B05B15/65 ,  B05B1/323 ,  B05B15/74

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.

公开(公告)号：US11085568B2

公开(公告)日：2021-08-10

申请号：US16314743

申请日：2017-07-07

Applicant: NELSON IRRIGATION CORPORATION

Inventor： Craig B. Nelson ,  Reid A. Nelson ,  Riley D. Greenwood ,  Chad D. Leinweber ,  Michael R. Townsend

IPC: F16L43/00 ,  A01G25/09 ,  F16L9/128 ,  F16L13/02 ,  F16L41/02

Abstract: A gooseneck pipe includes a first pipe half having a first radiused centerline curve, and a second pipe half fixed to the first pipe half and having a second radiused centerline curve. The first and second pipe halves define a flow path. Cross-sectional diameters of the first and second pipe halves vary along the flow path. The varying diameters of the first and second pipe halves serve to mitigate pressure losses due in part to Dean vortices or secondary flow patterns in the flow path when a fluid is turned in the gooseneck pipe.

公开(公告)号：US11045823B2

公开(公告)日：2021-06-29

申请号：US16323552

申请日：2017-11-08

Applicant: NELSON IRRIGATION CORPORATION

Inventor： George L. Sesser ,  Craig B. Nelson ,  Barton R. Nelson

IPC: B05B3/04 ,  B05B3/00

Abstract: A rotary nozzle sprinkler includes a base assembly with a bearing, a stem mounted rotatably in the bearing, and an elbow coupled at a proximal end to and rotatable with the stem and including an elbow bend. A nozzle is secured to a distal end of the elbow, and a diffuser assembly including a brake mechanism is cooperable with the elbow. By positioning the nozzle downstream of the elbow, the sprinkler can achieve a greater throw radius.

公开(公告)号：US20210023578A1

公开(公告)日：2021-01-28

申请号：US16517987

申请日：2019-07-22

Applicant: NELSON IRRIGATION CORPORATION

Inventor： Mathew L. Zimmerman ,  Craig B. Nelson ,  Chad D. Leinweber ,  Joseph Daniel Sinden

IPC: B05B12/02 ,  B05B3/08

Abstract: An automatic reversible arc assembly for a sprinkler includes a pair of primary stop members circumferentially spaced from each other by a first amount, and a pair of secondary stop members circumferentially spaced from each other by a second amount, different from the first amount. The primary stop members and the secondary stop members are coupled together and define a pivot assembly pivotable between a first position and a second position. A timer module cooperable with the pivot assembly is configured to hold the pivot assembly in the first position for a selectable period of time, after which the timer module enables the pivot assembly to pivot to the second position. The primary stop members are active in the first position, and the secondary stop members are active in the second position.

公开(公告)号：US20190384331A1

公开(公告)日：2019-12-19

申请号：US16554832

申请日：2019-08-29

Applicant: Nelson Irrigation Corporation

Inventor： Riley D. GREENWOOD ,  Craig B. Nelson

IPC: G05D16/06 ,  G05D16/10

Abstract: A method to operate a pressure regulator including an inlet flow passage and an outlet flow passage; a plunger reciprocally between the inlet and outlet flow passages, wherein an axis of the plunger is offset from an axis of the inlet flow passage and the plunger moves with respect to a stationary valve seat to regulate pressure of liquid flowing through the pressure regulator.

公开(公告)号：US10399108B2

公开(公告)日：2019-09-03

申请号：US15365461

申请日：2016-11-30

Applicant: Nelson Irrigation Corporation

Inventor： Steven E. Crawford ,  Craig B. Nelson

IPC: B05B1/32 ,  B05B3/00 ,  B05B3/04 ,  B05B3/06 ,  B05B15/16 ,  B05B15/50 ,  B05B15/65 ,  B05B15/74

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.

公开(公告)号：US20190154181A1

公开(公告)日：2019-05-23

申请号：US16314743

申请日：2017-07-07

Applicant: NELSON IRRIGATION CORPORATION

Inventor： Craig B. Nelson ,  Reid A. Nelson ,  Riley D. Greenwood ,  Chad D. Leinweber ,  Michael R. Townsend

IPC: F16L43/00 ,  F16L41/02 ,  F16L13/02 ,  F16L9/128

Abstract: A gooseneck pipe includes a first pipe half having a first radiused centerline curve, and a second pipe half fixed to the first pipe half and having a second radiused centerline curve. The first and second pipe halves define a flow path. Cross-sectional diameters of the first and second pipe halves vary along the flow path. The varying diameters of the first and second pipe halves serve to mitigate pressure losses due in part to Dean vortices or secondary flow patterns in the flow path when a fluid is turned in the gooseneck pipe.

公开(公告)号：US20190054480A1

公开(公告)日：2019-02-21

申请号：US16118718

申请日：2018-08-31

Applicant: Nelson Irrigation Corporation

Inventor： George L. Sesser ,  Craig B. Nelson

IPC: B05B3/00 ,  B05B3/04

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 includes a spider ingress opening cooperable with a spider barrier that in combination permit inevitable spider ingress while preventing spider access or contact with certain moving parts of the sprinkler.