Patent ID: 6152651
Filing Date: 2000-11-28
Classification: A01G,B05B

Abstract:
An apparatus for adjusting the level of an underground sprinkler having a bucket, comprising:a hydraulic cylinder assembly including a cylinder housing, a hollow cylinder rod disposed within the cylinder housing and having a fluid coupler for fluid communication with a pressurized water source, the cylinder rod having a lower end connector for operably connecting to the bucket, and a piston disposed within the cylinder housing and about the cylinder rod dividing the cylinder into a first lower compartment and a second upper compartment;the hollow cylinder rod having a fluid flow orifice to the first lower compartment;a fluid supply hose for connecting the pressurized water source in fluid communication with the cylinder rod and the first lower compartment;a wand having a fluid conduit for fluid communication with the pressurized water source and having a probing tip adapted to penetrate the surface of the ground surrounding the sprinkler base; anda trigger valve allowing an operator to control fluid flow through the wand;whereby hydraulic pressure provided by the pressurized fluid source is used to fluidize the ground surrounding the sprinkler base by way of the wand, and to drive the hydraulic cylinder to raise the level of the bucket of the underground sprinkler within the ground.