公开(公告)号：US5324371A

公开(公告)日：1994-06-28

申请号：US69541

申请日：1993-06-01

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: A01G25/00 ,  A01G25/02 ,  B29C47/00 ,  B29C47/02 ,  B29C47/28 ,  B29C47/90 ,  B29C47/92 ,  B32B31/18

CPC classification number: B29C47/28 ,  A01G25/026 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/026 ,  B29C47/028 ,  B29C47/903 ,  A01G2025/006 ,  B29C47/8835 ,  B29C47/8895 ,  B29C47/905 ,  Y10T156/1057 ,  Y10T156/1089

Abstract: A process and an installation for producing a drip irrigation conduit having discrete internally located emitter units bonded at axially spaced apart locations of an internal surface thereof, wherein the irrigation conduit is continuously extruded from an extrusion cross head at a first outer diameter and a first linear velocity and is drawn off through a calibrator unit to a second and lesser outer diameter at a second and greater linear velocity greater than the first linear velocity, the emitter units being continuously supplied on a carrier member which extends from within the extruder cross-head to the region of an inlet of the calibrator unit. While so supported the emitter units are accelerated so as to attain an emitter unit linear velocity substantially equal to said second linear velocity and are displaced at this velocity into contact with the extruded conduit where the latter has substantially attained its second linear velocity and therefore continue to be displaced while still supported in contact with the extruded conduit until the emitter unit is heat welded.

Abstract translation: 一种用于生产具有离散的内部定位的发射器单元的滴灌导管的工艺和装置，其结合在其内表面的轴向间隔开的位置处，其中冲洗导管从第一外径的挤压十字头和第一直线 速度，并通过校准器单元以大于第一线速度的第二和较大线速度被排出到第二和较小外径，发射器单元连续地供应在从挤出机十字头内延伸到的承载构件上 校准器单元入口的区域。 尽管如此支撑，发射器单元被加速以获得基本上等于所述第二线速度的发射器单位线速度并且以该速度移位以与挤压导管接触，其中后者基本上达到其第二线速度，因此继续 同时仍然支撑与挤压管道接触，直到发射器单元被热焊接。

公开(公告)号：US5207386A

公开(公告)日：1993-05-04

申请号：US771003

申请日：1991-10-01

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: A01G25/02 ,  B29C45/26

CPC classification number: B29C45/26 ,  A01G25/023 ,  A01G25/026

Abstract: An emitter unit having an elongated flowduct. The flowduct comprises a central elongated control duct of substantially rectangular cross-sectional shape having a width a and two sets of successive like flow pockets located respectively on either side of the control duct and opening into the control duct. Each flow pocket of the sets is defined between a pair of adjacent side walls of a pair of successive baffles of a corresponding set of baffles. Each baffle has baffle side walls which terminate in a baffle edge of width c and of height b, the baffles of one set being respectively directed substantially towards the mid-points of the inter-baffle regions of the opposite set. The baffle edges of each set of baffles are substantially aligned and define one pair of opposite longitudinal sides of the control duct, the other pair of longitudinal sides of the control duct being defined by first and second opposite control duct walls. The aligned edges of one set of baffles are substantially parallel to the aligned edges of the opposite set of baffles. The dimensions of a and c relative to d where d is the minimum throughflow spacing in the flowduct between successive, oppositely directed baffles are such that c lies substantially in the range 0-0.25 d and a lies substantially in the range 0.2d-0.4 d.

公开(公告)号：US4573640A

公开(公告)日：1986-03-04

申请号：US445998

申请日：1982-12-01

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: A01G25/02

CPC classification number: A01G25/02

Abstract: An irrigation emitter unit comprises an elongated body member having formed in a first surface thereof an elongated groove formed with a pair of oppositely directed flow resisting substantially triangular baffles, the groove having an inlet end and an outlet end, there being furthermore formed in the first surface a recessed cavity of elongated shape and being of extended dimensions as compared to the width of the groove, the outlet end of said groove communicating with the cavity so that the groove extends out of the cavity and is located on one side thereof, there being formed in the base of the cavity an outlet aperture extending to a second and opposite surface of the body member and having a rim area substantially less than that of the recessed cavity, a resiliently flexible membrane of substantially elongated shape juxtaposed with respect to the surface so as to be pressed sealingly thereagainst solely under the influence of fluid pressure and so as to define, with said groove, an elongated flow reducing flowpath; with the groove inlet a flowpath inlet; and with the cavity an outlet control chamber and communication being effected between an irrigation supply and said flowpath inlet and so as to allow for the exertion of the fluid pressure on the membrane; the arrangement being such that upon the fluid pressure acting on the membrane exceeding the fluid pressure in the outlet chamber by a predetermined amount, the membrane flexes elastically towards the outlet aperture so as to define, with a rim of the outlet aperture, a restricted outflow path thereby limiting variations in the outflow rate.

Abstract translation: 灌溉发射器单元包括细长主体构件，其在其第一表面中形成有形成有一对相反方向的阻力大致三角形挡板的细长槽，该凹槽具有入口端和出口端，此外还形成在第一 表面为细长形状的凹腔，与凹槽的宽度相比具有延伸的尺寸，所述凹槽的出口端与空腔相通，使得凹槽延伸出空腔并位于其一侧， 在空腔的基部形成有延伸到本体构件的第二和相对表面的出口孔，并且具有基本上小于凹腔的边缘面积的边缘区域，具有相对于表面并排的大致细长形状的弹性柔性膜 被密封地压在其上，仅在流体压力的影响下，并且与所述凹槽限定一个 n延长流量减少流路; 凹槽入口为流路入口; 并且所述空腔具有出口控制室，并且在冲洗供应源和所述流路入口之间进行连通，以便允许在膜上施加流体压力; 该布置使得当作用在膜上的流体压力超过出口腔中的流体压力达预定量时，该膜弹性地朝向出口孔弯曲，以便限定出口孔的边缘受到限制的流出 从而限制流出速率的变化。

公开(公告)号：US4449669A

公开(公告)日：1984-05-22

申请号：US286354

申请日：1981-07-23

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: B05B1/30

CPC classification number: B05B1/3006

Abstract: In a water sprinkler device having a nozzle housing and an outlet aperture of said housing; a nozzle unit comprising, a resiliently flexible annular member, a resiliently flexible intermediate tubular portion and a nozzle outlet tube, the annular member merging continuously with the outlet tube via the intermediate tubular portion and defining with the outlet tube and the intermediate tubular portion a continuous bore, the outlet tube extending through the outlet aperture of the housing, the annular member being located within the housing so as to abut a rim of the outlet aperture.

Abstract translation: 在具有喷嘴壳体和所述壳体的出口孔的喷水装置中， 喷嘴单元，包括弹性柔性环形构件，弹性柔性中间管状部分和喷嘴出口管，所述环形构件经由所述中间管状部分与所述出口管连续地合流并且与所述出口管和所述中间管状部分连续地连续 所述出口管延伸穿过所述壳体的出口孔，所述环形构件位于所述壳体内，以便邻接所述出口孔的边缘。

公开(公告)号：US4366926A

公开(公告)日：1983-01-04

申请号：US171048

申请日：1980-07-22

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: A01G25/02 ,  B05B15/00

CPC classification number: A01G25/023

Abstract: An in-line emitter unit comprising a tubular connector member having end portions adapted to connect together two successive lengths of irrigation conduit, a well structure formed integrally with an outer wall portion of the connector member, an inlet formed in said outer wall portion serving to effect communication between the interior of the tubular connector and the well structure, a cover member for the well structure, an elongated groove formed in an inner wall of the cover member, a recessed cavity formed in said inner wall and communicating with one end of the groove and being of extended dimensions as compared with the width of the groove, an outlet bore constituting a unit outlet and formed coaxially in a base portion of the cavity and having a rim area substantially less than that of the cavity, a resiliently flexible membrane located in the well structure and juxtaposed with respect to the inner wall so as to define with said groove a flow restricting flowpath, a second and opposite end of the groove communicating with the interior of the well structure; the arrangement being such that the membrane is displaceable towards and away from the base cavity portion of the cavity in accordance with pressure variations so as to stabilize the output rate of the emitter unit with respect to the variations.

Abstract translation: 一种在线发射器单元，包括管状连接器构件，该管状连接器构件具有适于将两个连续长度的冲洗导管连接在一起的端部部分，与连接器构件的外壁部分整体形成的井结构，形成在所述外壁部分中的入口， 在管状连接器的内部和井结构之间实现连通，用于井结构的盖构件，形成在盖构件的内壁中的细长槽，形成在所述内壁中并与其连通的凹腔 凹槽，并且与凹槽的宽度相比具有延伸的尺寸，出口孔构成单元出口，同轴地形成在空腔的基部中并且具有基本上小于空腔的边缘面积，弹性柔性膜位于 在井结构中并且相对于内壁并置，以便与所述槽限定流动限制流动路径，第二和 所述槽的相对端与所述井结构的内部连通; 该布置使得膜可以根据压力变化朝向和远离空腔的基腔部分移动，以便稳定发射器单元相对于变化的输出速率。

公开(公告)号：US4156651A

公开(公告)日：1979-05-29

申请号：US916210

申请日：1978-06-16

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: B01D35/02 ,  B01D29/23 ,  B01D25/16

CPC classification number: B01D29/23 ,  B01D2201/0415 ,  B01D2201/287

Abstract: A self-cleaning filtration device comprising a casing; a device inlet and a device outlet formed integrally with said casing; a cylindrical filter structure mounted in said casing and defining an inner zone in communication with said device inlet, and also defining with the adjacent walls of the casing an outer zone in communication with said device outlet whereby all flow from said device inlet to said device outlet passes through said filter structure, said structure including an axial stack of annular support elements, each support element comprising a flange portion and an inwardly located axially directed skirt portion, and a sleeve-like filter element surrounding said axial stack and bearing against the outermost edges of said flange portions, at least one plunger body reciprocatably displaceable in said filter structure and including a pair of axially spaced apart sealing rings of such axial extent and respective axial separation as to ensure that at all times sealing contact is maintained between said rings and a pair of successive skirt portions and so as to define with each such successive pair of skirt portions, a backflow chamber substantially sealed from said inner zone; communication means associated with said plunger element for rendering said chamber in communication with a backflow outlet so as to allow for backflow from said outer zone through the filtering structure via said chamber to the backflow outlet and displacing means for reciprocatably displacing said plunger body in said structure.

Abstract translation: 一种自清洁过滤装置，包括壳体; 与所述壳体一体形成的装置入口和装置出口; 圆柱形过滤器结构，其安装在所述壳体中并且限定与所述装置入口连通的内部区域，并且还与所述壳体的相邻壁限定与所述装置出口连通的外部区域，从而从所述装置入口到所述装置出口 通过所述过滤器结构，所述结构包括轴向堆叠的环形支撑元件，每个支撑元件包括凸缘部分和向内定位的轴向定向的裙部，以及围绕所述轴向堆叠并且抵靠最外边缘的套筒状过滤元件 所述凸缘部分中的至少一个柱塞体在所述过滤器结构中可往复运动地移动并且包括一对轴向间隔开的密封环，所述密封环具有这种轴向范围和相应的轴向间隔，以确保在所有环之间始终保持密封接触， 一对连续的裙部，并且以每个这样的连续的一对s来定义 衬套部分，基本上与所述内部区域密封的回流室; 与所述柱塞元件相关联的通信装置，用于使所述室与逆流出口连通，以便允许从所述外部区域经由所述室向后退出口和所述回流出口以及用于在所述结构中往复运动地移动所述柱塞体的位移回流 。

公开(公告)号：US3951345A

公开(公告)日：1976-04-20

申请号：US534063

申请日：1974-12-18

Applicant: Raphael Mehoudar

Inventor： Raphael Mehoudar

IPC: A01G25/02 ,  B05B15/00

CPC classification number: A01G25/02

Abstract: An elongated dripper unit comprising an enclosure sealed at either end thereof and formed with a liquid inlet and outlet, at least one longitudinal partition formed in said enclosure so as to divide the enclosure into at least two sub-enclosures and a plurality of lateral partitions each of which extends laterally across the other enclosure from the enclosure wall to an inner longitudinal partition so as to subdivide each sub-enclosure into a plurality of cells which communicate with each other via reduced-diameter communicating apertures formed in the longitudinal partition(s), said cells including an input cell communicating with said inlet, an output cell communicating with said outlet and a plurality of intermediate cells, a liquid flow path through said unit extending from said input cell to said output cell via said plurality of intermediate cells, the liquid pressure through said unit being progressively reduced as a result of passage through said communicating apertures and as a result of repeated abrupt directional changes, the available cross-sectional flow path through said apertures being substantially less than that through said cells.

Abstract translation: 一种细长的滴水器单元，包括在其任一端处密封并形成有液体入口和出口的外壳，形成在所述外壳中的至少一个纵向隔板，以便将外壳分成至少两个子外壳和每个 其横向穿过另一个外壳从外壳壁延伸到内部纵向隔板，以便将每个子外壳细分成通过形成在纵向隔板中的缩径的连通孔彼此连通的多个单元， 所述单元包括与所述入口连通的输入单元，与所述出口连通的输出单元和多个中间单元，通过所述多个中间单元从所述输入单元延伸到所述输出单元的所述单元的液体流动通道，所述液体 作为通过所述连通孔的结果，通过所述单元的压力逐渐减小 由于重复的突然的方向改变的结果，通过所述孔的可用横截面流动路径基本上小于穿过所述孔的横截面流动路径。