Patent ID: 7954731
Filing Date: 2011-06-07
Classification: B05B

Abstract:
1. An irrigation device for dispersing water over an area comprising: a housing having a top portion and a base portion being connectable to a water source and having an interior surface defining a recess; a rotatable water discharge assembly having an upper portion being supported from above by the top portion of the housing and defining an axis of rotation, a deflector for directing water discharge in a predetermined direction from the discharge assembly, and a bottom portion being received generally in the recess, the bottom portion having an exterior surface; located at least generally opposite the predetermined direction of water discharge and opposing at least a portion of the interior surface of the recess during operation of the irrigation device; and a bearing having an outer surface of wear resistant material; and a first cavity defined by either (1) a wall portion of the base portion of the housing adjacent the recess of the base portion of the housing or (2) a wall portion of the bottom portion of the rotatable discharge assembly, the wall portion defining all sides of the first cavity and leaving a radial facing opening leading to the recess and open in a direction transverse to the axis of rotation, the first cavity and the recess being adjacent one another and the bearing being received in the cavity to engage one of the interior surface or the exterior surface opposite the predetermined direction of water discharge as the deflector rotates to reduce wear at a sliding engagement between the bearing and one of the interior surface and the exterior surface.