Patent ID: 8893987
Filing Date: 2014-11-25
Classification: A01G,Y02A,Y10T

Abstract:
1. A drip irrigation pipe comprising a drip emitter and a flap, the drip emitter being located along the pipe wall adjacent the flap so that liquid passing through the emitter is able to exit the pipe at the flap, the flap being defined by first and second slits formed through the pipe wall and the flap remaining connected to the pipe wall at two bridges, a first one of the bridges being located between a beginning of the first slit and a first location along the second slit proximal to the beginning, a second one of the bridges being located between an end of the first slit and a second location along the second slit proximal to the end, and a pivot of the flap extending between the bridges, wherein the first and second slits do not merge with one another and; an operative part of the flap bound between the first slit and the pivot is sized such that liquid exiting the pipe at the flap bears against the operative part to twist the flap in a positive direction about the pivot such that any part of the flap that twists does so in the positive direction.