Nelson Irrigation Corporation

Patrick T Barry

Craig B Nelson

George L Sesser

Michael R Townsend

Reid A Nelson

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.

Dual-mode sprinkler head

A water distribution plate and diffuser plate assembly for distributing a stream emitted from a sprinkler nozzle comprising: a shaft having one end attached to a sprinkler component and an opposite end supporting first and second plates in axially spaced relationship for rotation about the shaft independent of one another; the first plate located adjacent the nozzle and formed with at least one water distribution groove shaped and arranged to divide a primary stream emitted from the nozzle into a plurality of secondary streams, and the second plate located downstream of the first plate and formed with at least one diffuser element arranged to be struck by at least some of the secondary streams exiting the first plate, and wherein speed of rotation of the first and second plates is braked.

Distributor plate with diffuser on fixed shaft

A water distribution plate and diffuser plate assembly for distributing a stream emitted from a sprinkler nozzle includes: a nonrotatable shaft having one end attached to a sprinkler component and an opposite end supporting first and second plates in axially spaced relationship for rotation about the shaft independent of one another. The first plate is axially adjacent the nozzle and formed with plural water distribution grooves shaped and arranged to divide a single primary stream emitted from the nozzle into a plurality of secondary streams. The second plate is downstream of the first plate and formed with plural diffuser elements arranged to be struck by at least some of the secondary streams exiting the first plate. The speed of rotation of one or both plates is slowed by viscous damping.

Growing community of inventors

Walla Walla, WA, United States of America

Patrick T Barry