US 9,807,948 B2
Drip irrigation tube with metering elements inserted therein
Ahai Loebinger, Yvonand (CH)
Assigned to THE MACHINES YVONAND S.A., Yvonand (CH)
Filed by THE Machines Yvonand S.A., Yvonand (CH)
Filed on Oct. 1, 2015, as Appl. No. 14/872,528.
Claims priority of application No. 14187499 (EP), filed on Oct. 2, 2014.
Prior Publication US 2016/0095285 A1, Apr. 7, 2016
Int. Cl. B05B 15/00 (2006.01); A01G 25/02 (2006.01); B05B 15/06 (2006.01)
CPC A01G 25/023 (2013.01) [A01G 25/02 (2013.01); B05B 15/008 (2013.01); B05B 15/069 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A drip irrigation system, comprising:
a drip irrigation tube comprising a tube wall; and
multiple metering elements inserted in the drip irrigation tube, wherein each of the metering elements is connected to the tube wall of the drip irrigation tube, and wherein each of the metering elements comprises:
an inlet region, through which water from the drip irrigation tube arrives in the metering element;
a metering region, comprising a labyrinth channel having a discharge cross section that is not reduced, the labyrinth channel delimited by two lateral walls, a cover and the tube wall of the drip irrigation tube and in which a pressure reduction of water flowing through takes place; and
an outlet region, through which water emerges out of the drip irrigation tube via an outlet opening in the tube wall, wherein the outlet region borders on at least one of the two lateral walls of the labyrinth channel, wherein at least one region of the two lateral walls is covered by and connected to an elastic membrane forming a portion of the cover, and wherein the two lateral walls are configured to be lifted off of the tube wall by lifting the elastic membrane, thus forming a passage through which water from the labyrinth channel reaches the outlet region directly.