Patent ID: 6109546
Filing Date: 2000-08-29
Classification: B05B

Abstract:
A bearing for rotatably supporting first and second sprinkler elements on a supporting stand, each of the sprinkler elements having a corresponding neck, comprising:a hollow, generally cylindrical bushing extending along a longitudinal axis and defining a fluid receiving chamber therein, the bushing including a first open end operatively connected to the supporting stand such that the fluid receiving chamber communicates with the interior thereof, and a second, opposite closed end, the bushing further including first and second sets of longitudinally spaced apertures therein, the first set of apertures received within the neck of the first sprinkler element and the second set of apertures received within the neck of the second sprinkler element;a tubular bushing sleeve rotatably received within the neck of the first sprinkler element and on the bushing, the bushing sleeve having an aperture therethrough lying in a common plane with the first set of apertures in the bushing such that the interior of the first sprinkler element successively communicates with fluid receiving chamber in the bushing through the aperture in the bushing sleeve and through one of the first set of apertures in the bushing as the bushing sleeve rotates about the bushing in response to the flow of fluid from the fluid receiving chamber in the bushing to the interior of the first sprinkler element;a generally tubular support sleeve rotatable supported on the bushing, the support sleeve extending along the longitudinal axis between the first and second sets of apertures in the bushing.