Patents Assigned to Netafim Ltd.
  • Publication number: 20120312894
    Abstract: A pulsating irrigation device is provided that transforms a fluid flow entering the device to an intermittent pulsating fluid flow that is ejected from the device. The device has a chamber and at least one compressible member in pressure contact with the chamber. The compressible member compresses to assist the formation of the pulses ejected from the device and the fluid within the chamber is substantially sealed from contact with the interior of the compressible member.
    Type: Application
    Filed: August 22, 2012
    Publication date: December 13, 2012
    Applicant: Netafim, Ltd.
    Inventor: Ron Keren
  • Publication number: 20120305676
    Abstract: A drip irrigation emitter receives liquid flowing in an irrigation pipe at an inlet pressure and emits the liquid out of the emitter at an outlet pressure lower than the inlet pressure. The emitter has a flow path through which the liquid flows in the emitter, wherein below a threshold pressure of liquid in the pipe the emitter is adapted to emit a regulated flow of liquid out of the emitter, and above the threshold pressure of liquid in the pipe the emitter is adapted to emit a non-regulated flow of liquid out of the emitter.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Applicant: Netafim, Ltd.
    Inventor: Ron Keren
  • Patent number: 8313045
    Abstract: A liquid atomizer for agricultural use includes at least one canal in fluid communication via a chamber with an outlet. At least a section of the canal extends along a straight line and tangentially opens into the chamber.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: November 20, 2012
    Assignee: Netafim, Ltd.
    Inventor: Michael Levitsky
  • Publication number: 20120247599
    Abstract: An irrigation pipe connector has a core that is adapted to connect to an irrigation element and a wing that is attachable to a wall of a pipe. The wing is provided with resiliency to allow the connector to deform in response to changing fluid pressures in the pipe. In addition, the wing may be provided with a thin segment in order to reduce potential damage during welding of the wing to the wall of the pipe.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: Netafim Ltd.
    Inventors: Abed Masarwa, James Wallace Belford
  • Publication number: 20120248225
    Abstract: A drip irrigation pipe includes a drip emitter and a flap that is formed in the pipe wall by first and second grooves. The first groove is longer than the second groove and the flap remains connected to the pipe wall at two bridges. A pivot region of the flap extends between the two bridges and the flap is adapted to twist about the pivot region as liquid exits the pipe at the flap.
    Type: Application
    Filed: October 24, 2010
    Publication date: October 4, 2012
    Applicant: Netafim, Ltd
    Inventor: Ari Baruh Lerner
  • Patent number: 8220838
    Abstract: An irrigation pipe connector has a core that is adapted to connect to an irrigation element and a wing that is attachable to a wall of a pipe. The wing is provided with resiliency to allow the connector to deform in response to changing fluid pressures in the pipe. In addition, the wing may be provided with a thin segment in order to reduce potential damage during welding of the wing to the wall of the pipe.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: July 17, 2012
    Assignee: Netafim, Ltd.
    Inventors: Abed Masarwa, James Wallace Belford
  • Publication number: 20120153096
    Abstract: A sprinkler irrigation stand for use with an irrigation pipe has a base placed below the pipe for being stabilized by the pipe. The pipe freely rests upon the base so that it may be lifted freely off the base or may inflate freely upwards in the case the pipe is a collapsible pipe. A riser of the stand for supporting a sprinkler may be attached to the pipe and slide up in relation to the stand when attached to a collapsible pipe that is inflated.
    Type: Application
    Filed: September 12, 2010
    Publication date: June 21, 2012
    Applicant: NETAFIM, LTD
    Inventors: Nitzan Vered Shaol, Erez Govrin, Yair Shomer
  • Patent number: 8141589
    Abstract: A labyrinth channel for reducing pressure and/or flow rate in a liquid flowing in the channel, the labyrinth channel having a bottom surface and first and second opposing walls and comprising: a first array of spaced apart first baffle teeth that have non-parallel upstream and downstream faces and extend from the first wall towards the second wall to terminate in an end; and a second array of spaced apart second baffle teeth that have non-parallel upstream and downstream faces and extend from the second wall towards the first wall to terminate in an end; wherein baffle teeth in different arrays have a substantially same shape and upstream faces of closest baffle teeth in different arrays are different and/or downstream faces of closest baffle teeth in different arrays are different.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: March 27, 2012
    Assignee: Netafim, Ltd.
    Inventor: Esteban Ariel Socolsky
  • Publication number: 20120006421
    Abstract: A tensiometer for use in determining matric potential of a soil includes a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and a septum that seals water that enters the inlet against ingress of air via the porous material.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicants: Yissum Research Development Company Of The Hebrew University Of Jerusalem, Netafim Ltd.
    Inventors: Uri SHANI, Abraham Schweitzer
  • Patent number: 8091800
    Abstract: A drip irrigation device for distributing a portion of the water flowing in an irrigation pipe to a plant, the device comprising: a housing formed from a relatively soft plastic; and a connector for coupling the housing to the irrigation pipe comprising a bayonet for puncturing the irrigation pipe formed from a relatively hard material over-molded onto a feature of the housing made from the soft plastic.
    Type: Grant
    Filed: April 9, 2006
    Date of Patent: January 10, 2012
    Assignee: Netafim, Ltd.
    Inventors: Jakob Dan Retter, Ron Keren
  • Patent number: 8051871
    Abstract: A tensiometer for use in determining matric potential of a soil comprising: a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and a septum that seals water that enters the inlet against ingress of air via the porous material.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: November 8, 2011
    Assignees: Netafim Ltd., Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Uri Shani, Abraham Schweitzer
  • Patent number: 8038082
    Abstract: A stake for holding an irrigation pipe near a plant. The pipe comprising a first end portion and a second portion bendable relative to the first end portion. The stake comprising a distal retaining portion for holding the first portion of the pipe and first and second proximal retaining portions for optionally accommodating the second portion of the pipe. The stake is designed to allow the second portion of the pipe to be optionally moved from the first proximal retaining portion to the second proximal retaining portion without removing the first portion of the pipe from the distal retaining portion.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: October 18, 2011
    Assignee: Netafim Ltd.
    Inventor: Lorne-Moshe Belford
  • Publication number: 20110072718
    Abstract: A method of cutting crops is suitable for the production of biofuel. The crops are of the kind that first grows a stem bearing seeds and subsequently grows branches bearing seeds. The crops are irrigated and grown until a majority of them have grown seeds and then are cut by a motor vehicle before a majority of them have grown branches bearing seeds.
    Type: Application
    Filed: December 2, 2010
    Publication date: March 31, 2011
    Applicant: Netafim, Ltd.
    Inventor: Eli Vered
  • Patent number: 7900396
    Abstract: An irrigation system includes an activator that increases or decreases its weight respectively in response to an increase or decrease of pressure in the system. The activator biases a valve that controls the fluid pressure in the system.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: March 8, 2011
    Assignee: Nea Netafim, Ltd.
    Inventor: Ron Keren
  • Patent number: 7900656
    Abstract: A pipe having a wall formed from a cross-laminated film, and a method of making such a pipe. The film is formed of first and second layers having respective first and second orientation directions, wherein an angle between each of the first and second orientation directions and a projection of a longitudinal axis of the pipe on the wall is selected to enhance the resistance of the pipe to circumferential and/or longitudinal strain due to internal fluid pressure. The angle between each of the first and second orientation directions and a projection of the axis on the wall may be substantially equal to the neutral bias angle. In some cases, the angle between each of the first and second orientation directions and the projection of the axis on the wall may be substantially equal to 59°±2°.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: March 8, 2011
    Assignee: Netafim, Ltd.
    Inventor: Abed Masarwa
  • Patent number: 7886775
    Abstract: An irrigation pipe formed from a sheet that is rolled into a tube about a longitudinal axis of the sheet. The pipe has a watertight layer and a fabric layer. The fabric layer comprises a first fiber arrangement including first main fibers having a first orientation and a second fiber arrangement including second main fibers having a second orientation. The first and second orientations are transverse relative to each other and to the longitudinal axis when viewed in the sheet before it is rolled.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: February 15, 2011
    Assignee: Netafim, Ltd.
    Inventor: Abed Masarwa
  • Patent number: 7862873
    Abstract: An Irrigation pipe having a wall comprising: a core layer formed from a biodegradable material; and at least one relatively non-biodegradable protective layer formed on the core layer.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: January 4, 2011
    Assignee: Netafim, Ltd.
    Inventors: Tsipora Yankovitz, Abraham Schweitzer
  • Patent number: 7775237
    Abstract: A fluid flow regulator (20) comprising: a fluid inlet port (34) and a fluid outlet port (54); at least one open-faced flow control channel (60) defined by a planar bottom (62) and two sidewalls (64) that communicates with the outlet port (54) at a junction (66) and has a cross-section that decreases with distance from the junction; an elastic diaphragm (40); a support shelf (58) on which the diaphragm (40) seats and which supports the diaphragm (40) along a planar contour parallel to the bottom of each of the at least one channel (60); wherein to regulate fluid flow, with increasing inlet fluid pressure the diaphragm (40) covers portions of the open face that are farther from the junction (66) in a region where the cross-section decreases with distance from the junction (66).
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: August 17, 2010
    Assignee: Netafim, Ltd.
    Inventor: Ron Keren
  • Publication number: 20100155508
    Abstract: A drip irrigation emitter has first and second inlets through which liquid enters the emitter from an irrigation pipe, an outlet through which liquid exits the emitter, and a first flexible diaphragm portion seated on the second inlet and serving as a valve. Liquid at a pressure in the pipe that is below a predetermined level enters the emitter via the first inlet and travels along a first flow restricting path before exiting via the outlet and liquid at a pressure in the pipe that is above the predetermined level biases the first flexible diaphragm portion so that liquid can enter the emitter via the second inlet and travels along a second flow restricting path before exiting via the outlet.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Applicant: Netafim Ltd.
    Inventor: Ron Keren
  • Patent number: 7681810
    Abstract: An emitter comprising: a plurality of inlet apertures through which liquid enters the emitter; a manifold flow channel into which liquid that passes through the apertures flow; an elastic diaphragm that seats on the manifold flow channel; an outlet aperture through which liquid that enters the emitter exits the emitter; wherein liquid that enters the inlet apertures displaces only a portion of the diaphragm from the manifold channel so that the liquid can leave the manifold channel and flow through the emitter to reach the outlet aperture.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 23, 2010
    Assignee: Netafim, Ltd.
    Inventor: Ron Keren