Patent ID: 9307705
Filing Date: 2016-04-12
CPC Classification: A01G,Y02A,Y10T

Claim Text:
1. An emitter for establishing a pressure compensating, regulated fluid flow from an irrigation line, said emitter comprising: an enclosing sidewall surrounding a volume, said sidewall having a first end, a second end and formed with a ledge therebetween; an inlet extending into said volume between said ledge and said first end of said sidewall and an outlet extending into said volume between said ledge and said second end of said sidewall; a fluid passageway formed as a labyrinth and having a first portion in fluid communication with said inlet and a second portion in fluid communication with said outlet, wherein the first portion of the fluid passageway follows an annular path having a radius, r a membrane positioned in said volume between said second end of said sidewall and said ledge, said membrane covering the first fluid passageway portion and deformable between a first low-pressure membrane configuration in which fluid bypasses the second fluid passageway portion in flowing from the first fluid passageway portion to the outlet and a second high-pressure membrane configuration in which fluid flows through the second fluid passageway portion to the outlet.