Patent ID: 6227455
Filing Date: 2001-05-08
Classification: B05B,Y10T

Abstract:
A method of repairing a valve in a head sprinkler without excavating the sprinkler, comprising the steps of:providing a hollow body with an inlet and a valve for controlling the entry of water into the body through the inlet;providing the body with a riser vertically reciprocable within the body and including a nozzle at an upper end thereof for distributing water over an area to be watered;providing the body with a circular ground support flange at its upper end including an aperture for allowing the riser to extend and retract therethrough and an opening that leads to a valve actuator component assembly housing connected to the body;installing a valve actuator component assembly inside the housing and operatively connecting the assembly to the valve for turning the valve ON and OFF;sealing an open upper end of the valve actuator component assembly housing with an openable lid;connecting the inlet to a sub-surface water supply line;burying the body in a bed of soil so that the ground support flange is substantially located at a level of a surface of the bed; andopening the lid, disconnecting the assembly, and removing the assembly from the valve actuator component assembly housing through the opening in the ground support flange to enable repair or replacement of the assembly.