US Patent No. 9,446,421


Patent No. 9,446,421
Issue Date September 20, 2016
Title Rotor-type Sprinkler With Adjustable Arc/full Circle Selection Mechanism
Inventorship Ronald H. Anuskiewicz, San Diego, CA (US)
Aaron J. Palumbo, San Diego, CA (US)
Assignee Hunter Industries, Inc., San Marcos, CA (US)

Claim of US Patent No. 9,446,421

1. An irrigation sprinkler of the type having a reversing gear drive, comprising:
a riser;
a nozzle turret rotatably mounted at an upper end of the riser;
a drive assembly supported in the riser and coupled to the nozzle turret for rotating the nozzle turret, the drive assembly
having a reversing gear drive, a reversing mechanism, and a manually adjustable arc setting mechanism including a pair of
arc tabs, a position of one of the arc tabs being adjustable through the arc setting mechanism to change a size of an angle
through which the nozzle turret oscillates back and forth, the manually adjustable arc setting mechanism further being adjustable
wherein the manually adjustable arc setting mechanism includes an adjustable arc tab that is radially deflectable relative
to a central axis of the sprinkler so that a shift toggle of the reversing mechanism cannot contact the adjustable arc tab
to thereby allow the nozzle turret to continuously rotate.