Abstract: A liquid atomizer comprising a housing fitted with an inlet for connecting to a liquid supply line and a cavity being in flow communication with the inlet and having a longitudinal axis. The housing has one or more outlet nozzles for emitting atomized liquid. A vortex generating member is received within the housing and is formed with at lest one vortex generating path generates a liquid vortex about an axis transversally extending relative to the longitudinal axis of the housing and extending opposite a respective outlet nozzle. Each of the vortex generating paths is in flow communication with the cavity and extends opposite a respective outlet nozzle.

Abstract: A rotary irrigation sprinkler head having a water inlet and a water outlet and a main rotary part. The main rotary part of said sprinkler head is provided with a gear and a plurality of toothed wheels forming a reduction gear, a first low voltage electric motor is provided connected to said reduction gear, the activation of said electric motor would revolve the sprinkler, and a second low voltage electric motor is provided connected to the outlet nozzle of said sprinkler adapted to control the angle of said outlet nozzle.

Abstract: A Strip irrigator comprising a body member fitted with an inlet for coupling to an irrigation water supply and an outlet nozzle of said body member, defining a longitudinal axis, a distribution member formed with a water engaging portion consisting of two ducts forming between them an essentially V-like shape with an intersection adjacent a lower end thereof, each duct ending at a deflection groove, and a support bracket pivotally supporting the distribution member to the body member. The arrangement being such that responsive to a water jet emitted from the outlet nozzle, the distribution member generates reactionary forces imparting it as a reciprocal rocking motion about a horizontal axis perpendicular to the longitudinal axis.

Abstract: A rotary drive sprinkler comprising a housing with a water inlet for coupling to a water irrigation supply and an outlet nozzle. A drive shaft is rotatably retained within the housing and has a portion extending from the housing through the outlet nozzle, around which water is adapted to flow. A rotary distribution member is fixedly articulated to the portion of the shaft and has at least one deflection surface in stream communication with the outlet nozzle. The housing also accommodates a rotary drive mechanism for rotating the drive shaft and a speed regulating mechanism for regulating the speed of rotation of the distribution member. The arrangement is such that the sprinkler is devoid of any dynamic seals.

Abstract: A Strip irrigator comprising a body member fitted with an inlet for coupling to an irrigation water supply and an outlet nozzle of said body member, defining a longitudinal axis, a distribution member formed with a water engaging portion consisting of two ducts forming between them an essentially V-like shape with an intersection adjacent a lower end thereof, each duct ending at a deflection groove, and a support bracket pivotally supporting the distribution member to the body member. The arrangement being such that responsive to a water jet emitted from the outlet nozzle, the distribution member generates reactionary forces imparting it as a reciprocal rocking motion about a horizontal axis perpendicular to the longitudinal axis.

Abstract: A rotary sprinkler comprising a body member fitted with a water inlet for coupling to a water irrigation supply and an outlet nozzle at an end of a stem member vertically projecting from the body, a swivel distribution member rotatably articulated to the stem member and formed with at least one deflection surface being in stream communication with the outlet nozzle. The deflection surface is adapted for generating a tangent reaction force imparting rotary motion to the distribution member.

Abstract: A rotary drive sprinkler comprising a housing for coupling to an irrigation water supply, a sprinkler spray head rotatably mounted with respect to the housing and flow coupled to supply and a rotary drive mechanism located within the housing so as to be driven by the water supply and a transmission mechanism coupled to the drive mechanism and having first and second, oppositely directed, rotary outputs, there being further provided a reversing mechanism including a stop assembly having stop members arcuately displaceable with respect to each other between a juxtaposed position and a variable spaced apart position, a trip assembly responsively juxtaposed with respect to the stop members so as to be reversibly displaced by successive contacting with the stop members only when the latter are in their angularly spaced apart position, one of the assemblies being rotationally driven by the drive mechanism and a selective coupling responsively coupled to the trip assembly for coupling to one or other of outputs resp

Abstract: A rotatable outlet nozzle for use in a rotary sprinkler adapted to be rotatably mounted and driven in a sprinkler housing and comprising a through-flow tube portion, a curved deflector wall portion merging with an outlet end of the tube and defining a main outlet and an auxiliary outlet formed in the deflecting wall in a position thereof opposite the main outlet, the positioning and dimensions of the auxiliary outlet being such that an auxiliary water spray emerges therefrom in a direction opposite to that of a main water spray emerging from the main outlet.

Abstract: A rotary sprinkler of the kind wherein an outlet nozzle having an integrally formed impeller element is adapted to be driven by a drive ball located within a drive ball enclosure wherein a first major axial portion of the side wall extends from the base wall of the enclosure to an intermediate peripheral position thereof and defines a first angle .alpha..sub.1 with respect to a normal to the base wall while a second minor axial portion of the side wall extends from the intermediate peripheral position to an edge rim of the enclosure and defines a second angle .alpha..sub.2 with respect to a normal to the base wall, .alpha..sub.2 being substantially greater than .alpha..sub.1, the impact element being spaced from the intermediate peripheral position by a distance which is not substantially less than one half the diameter of the drive ball.

Abstract: A microsprayer producing a pressure compensating jet is disclosed comprising a substantially cylindrical housing open at a first end thereof and having a spray directing boss formed integrally therewith and adjacent to a second and opposite end thereof; and an insert body adapted to be press fitted within the housing and comprising a longitudinally directed wall portion, first and second flanges extending respectively from opposite sides of the wall portion so as to bear sealingly against an inner surface of the housing so as to define therewith respective inlet and outlet chambers. A flexible membrane is located in the inlet chamber so as to divide it into first and second sub-chambers and a water inlet means is formed in a first end wall of the insert body adjacent the first end of the housing and communicating with the first sub-chamber.

Abstract: A rotary sprinkler having a base member for coupling to an irrigation supply and formed with one or more base member outlets, there being furthermore provided a rotary distributor member of substantially cuspidal shape rotatably mounted with respect to said base member with an apical end thereof adjacent the base member and an opposite broad end thereof remote from the base member, a plurality of distributor passages are formed in a curved surface of the distributor member, each passage extending from a passage inlet located in said apical end adjacent to a base member outlet to a passage outlet located in said broad end, a rotary turbine member is rotatably mounted with respect to the distribution member and provided with a plurality of turbine blades disposed adjacent the passage outlets so that irrigation streams emerging from the passage outlets strike said blades and rotatably displace the turbine member, ball drive means being located between the turbine and distributor members for transmitting the rota

Abstract: In a rotary irrigation mini-sprinkler of the kind comprising a housing having a housing inlet and a housing outlet and, intermediate thereof, a differential pressure control means responsive to variations in the pressure differential between the inlet and outlet and including a throughflow path serving to communicate with said housing inlet and outlet, the throughflow dimensions of the path varying in accordance with the differential, the improvement wherein the housing outlet includes an outflow port in direct communication with the path and having a non-circular cross-sectional shape such as to reduce substantially the velocity of water entering the port from the path and thereby ensuring that the water fully occupies the port.

Abstract: A turbine operated rotary sprinkler comprising a rotary nozzle, a water supply, operated turbine and rotary drive coupling means coupling the turbine to the nozzle so as to impart a rotary drive thereto, the turbine comprising a turbine wheel having a plurality of equiangularly distributed vanes each having a plane of symmetry located along a radial plane of the wheel, a pair of turbine inlets being located with respect to the wheel that water inflow sequentially through the inlets drives the wheel in respectively opposite senses, sealing means being provided for sequentially sealing the turbine inlets, displacement means being provided for displacing the sealing means into sequentially sealing the turbine inlets, displacement actuating and transmission means being provided which comprise an impact member and a rotational range defining member, the latter including a pair of spaced apart abutment elements, one of the members being rotatable with the nozzle and the other of the members being responsively coupl

Abstract: An irrigation leakage prevention device for coupling between an irrigation supply source and an irrigation emitter unit. The device comprises a tubular throughflow conduit, at least the central portion thereof being formed of a resiliently flexible material and having end portions which are held against resilient displacement, a central barrier member being fixedly located within the conduit. With a water supply pressure less than a predetermined minimum, the central portion of the conduit sealingly embraces the barrier so as to prevent throughflow and when the water supply pressure exceeds this minimum, the central portion is resiliently displaced away from the barrier so as to allow throughflow.

Abstract: A rotary irrigation spray device comprises a support adapted to be fixedly mounted on an irrigation riser; a spray shroud member pivotally mounted on the support; a deflector member pivotally mounted within the shroud member and pivotally displaceable within the shroud member between a pair of positions so as to define therewith an alternate pair of spray outlet paths and guide members for determining the angle of rotational displacement of the shroud member and for successively displacing the deflector member into one or other of its positions.

Abstract: A rotating "pop-up" sprinkler assembly having a rectangular buried container unit and a cam follower and cam track for automatically directionally aligning the sprinkler head as it returns to the container to thereby minimize the size of the container.