Patent ID: 7584904
Filing Date: 2009-09-08
Classification: B05B

Abstract:
1. A sprinkler device comprising: a rotatable shaft having a cam, said cam having a radially outwardly projecting shaft lobe; a water distribution plate supported on one end of the shaft and adapted to be impinged upon by a stream emitted from a nozzle causing said water distribution plate and said shaft to rotate; a hesitator assembly supported on an opposite end of the shaft said assembly including a stationary housing having a sealed chamber at least partially filled with a viscous fluid, said shaft passing through said chamber, with said cam and shaft lobe located within said chamber; and a rotor ring located within said chamber in substantially surrounding relationship to said cam, said rotor ring having two or more inwardly projecting hesitator lobes movable into and out of a path of rotation of the shaft lobe, such that rotation of said shaft and water distribution plate is slowed during intervals when the shaft lobe engages and pushes past a respective one of said two or more hesitator lobes.