Patent attributes
A self-sealing dripper apparatus for controlling liquid flow from a main irrigation pipe is provided. The dripper apparatus comprises a dripper base having an attachment end and an open end with the attachment end capable of being releasably connected to the liquid carrying pipe and the attachment end fluidly connected to the open end. A hollow piston casing is provided having a first open end and a second open end with the first open end positionable over the open end of the dripper base. A piston is slidably movable within the piston casing with the piston having a first end and a second end. Upon fluid flowing from the main irrigation pipe, the fluid forces the second end of the piston against the second open end of the piston casing thereby sealing the second open end of the piston casing. Upon overcoming the force of the fluid flowing from the main irrigation pipe, the second end of the piston separates from the second open end of the piston housing allowing fluid to flow through the second open end of the piston casing.
