Nelson Irrigation Corporation

Reid A Nelson

Craig B Nelson

George L Sesser

Barton R Nelson

Meade M Neal

Richard L Schisler

Michael R Townsend

Lee A Perkins

Riley D Greenwood

Chad Daniel Leinweber

Patrick T Barry

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.

Center pivot irrigation gooseneck with varying cross-sectional diameters

A clip for holding a pair of nozzle inserts for use with an irrigation sprinkler includes at least two flexible attachment arms, each attachment arm provided with an elongated slot and a retention shoulder on an inside surface thereof, adjacent the elongated slot. Each attachment arm is adapted to be received in an opening in a respective nozzle insert and retained therein by the retention shoulder. A related tool includes a pair of gripper arms and a respective pair of jaws extending from the gripper arms, pivotally secured to one another. One jaw is formed with a pair of parallel prongs, and the other jaw is formed with a flat head projecting toward the pair of prongs. The jaws are adapted to engage the nozzle insert and disengage the retention shoulder to permit removal of the nozzle insert from the clip.

Sprinkler with multi-functional, side-load nozzle with nozzle storage clip and related tool

A sprinkler and side-loading nozzle insert assembly includes, in a preferred arrangement, a sprinkler body provided with a flow passage along a sprinkler body axis and a nozzle insert spring-loaded received in a complementary recess formed in the sprinkler body. The nozzle insert has an axis of rotation transverse to the sprinkler body axis and is rotatable from an insertion position to plural operating positions. The nozzle insert is provided with an elongated, substantially cylindrical insert body including a nozzle bore extending through the insert body on an axis transverse to the axis of rotation and alignable with the flow passage in at least two of the plural operating positions. Plural index tabs extend radially from the insert body at circumferentially-spaced locations, and are adapted to engage respective plural index notches in the sprinkler body as the insert body is rotated to the plural operating positions.

Sprinkler with multi-functional, side-load nozzle

A sprinkler and side-loading nozzle insert assembly includes a sprinkler body provided with a flow passage and a nozzle insert seated in a complementary recess in said sprinkler body. The nozzle insert is rotatable to plural operating positions and it includes an elongated, substantially cylindrical insert body having an insert axis about which the nozzle insert rotates. A nozzle bore extends through the insert body on an axis transverse to the insert axis and alignable with the flow passage in one of the plural operating positions. A forward end face is provided with a turning knob and plural index tabs extending radially from the insert body at circumferentially-spaced locations proximate the forward end face. The index tabs are adapted to engage respective index notches in the sprinkler body as the insert body is rotated to the plural operating positions.

A height adjustment assembly for a drop hose on an irrigation machine is composed of an elongated bracket having a first end provided with a pair of fittings, and a second opposite end provided with a drop hose retention ring; the drop hose retention ring formed with an opening adapted to permit a drop hose to slide through the opening, the opening defined by an interior surface provided with a pair of diametrically opposed open slots, and a pair of diametrically opposed locking recesses. A key lock fitting is adapted for connecting aligned hose ends of the drop hose and is provided with a pair of diametrically-opposed keys which, in use, are adapted to slide through the pair of opposed open slots and, upon ninety degree rotation of the diametrically-opposed keys, to be received in the pair of diametrically opposed locking recesses.

Sprinkler height adjustment on an irrigation machine

A rotary, nutating sprinkler head includes a housing supporting a nozzle tube extending in a downstream direction, concentric with a vertical center axis of the sprinkler head; a spool assembly loosely supported on the starter tube, the spool assembly including a double-flanged spool and a water-deflection plate carried by the spool, the water-deflection plate formed with one or more grooves shaped to cause the spool assembly to rotate when impinged upon by a stream emitted from the starter tube; wherein one of the starter tube and the spool is provided with at least one tilting lug located to maintain the spool assembly in a tilted or angularly offset orientation relative to the vertical center axis, thereby facilitating a wobbling action of the spool assembly during rotation.

Sprinkler with nutating mechanism and optional weight

A dual-mode sprinkler includes a nozzle arranged to supply a stream to a rotatable water-distribution plate. The sprinkler can be adjusted between free-spinning and retarded or braked rotation, enabling multi-use applications for the sprinkler.

Growing community of inventors

Walla Walla, WA, United States of America

Reid A Nelson