Patent ID: 8622317
Filing Date: 2014-01-07
Classification: B05B

Abstract:
1. An irrigation sprinkler, comprising: a generally tubular riser assembly including a nozzle turret rotatably mounted at an upper end of the riser assembly and a drive assembly coupled for rotating the nozzle turret; a generally cylindrical debris screen formed with a plurality of apertures for filtering debris from water flowing through the apertures, the debris screen being dimensioned and configured to mate with a lower end of the riser assembly; and at least one locking mechanism having a first portion on the lower end of the riser assembly and a second portion on the debris screen, the first and second portions of the locking mechanism being located so that they can be mated when the debris screen is mated with the lower end of the riser assembly, and the first and second portions of the locking mechanism being configured so that they can be positively aligned with a relative axial motion between the debris screen and the riser assembly, and further locked and unlocked by rotational motion between the debris screen and the riser assembly, the locking mechanism holding the debris screen to the riser assembly when locked; wherein the first portion of the locking mechanism is a locking recess, and wherein the locking recess has a generally L-shaped configuration with a first leg that extends in a direction generally parallel to a vertical axis of the riser assembly and a second leg that extends in a direction generally perpendicular to the vertical axis of the riser assembly.