公开(公告)号：US4147307A

公开(公告)日：1979-04-03

申请号：US783291

申请日：1977-03-31

申请人： Mark H. Christy ,  Lloyd Spencer

发明人： Mark H. Christy ,  Lloyd Spencer

IPC分类号： A01G25/02 ,  B05B15/02

CPC分类号： A01G25/023

摘要： A multiple emitter flow control which utilizes an irrigation flow tube provided with a series of outlets which receive a series of flexible emitters, the walls of each emitter being biased to form a flush flow passage extending radially inward from its corresponding outlet, the flush flow passage being collapsible, when the walls are subject to a bending force, causing the emitter to deflect angularly from its outlet, and also collapsible, when subject to water pressure above a preselected value, each emitter when collapsed by a bending force or by water pressure forming a drip flow passage from the interior of the irrigation tube through its outlet; the walls of the irrigation flow tube between irrigation cycles being biased to a normally flattened profile. An embodiment of the emitter being of greater length than the minor dimension of the flattened irrigation flow tube. Another embodiment utilizes an irrigation flow tube which is initially a web permitting attachment of the emitters to the inner surface of the irrigation flow tube whereupon the web is folded into a tube and longitudinally sealed. A further embodiment of the emitter tube has a short length approximating the minor dimension of the flattened irrigation flow tube.

摘要翻译： 一种多发射器流量控制器，其使用具有接收一系列柔性发射器的一系列出口的冲洗流管，每个发射器的壁被偏置以形成从其相应的出口径向向内延伸的冲洗流动通道，冲洗流动通道 当壁受到弯曲力时，当受到水压高于预选值时，当壁受到弯曲力时，使得发射器从其出口角度偏转，并且还可折叠，每个发射器在被弯曲力或水压成形 从冲洗管内部通过其出口的滴流通道; 冲洗循环之间的冲洗流管的壁被偏压到正常扁平的轮廓。 发射器的一个实施例具有比扁平的冲洗流管的较小尺寸更大的长度。 另一个实施例使用冲洗流管，其最初是允许发射器附接到冲洗流管的内表面的腹板，由此将腹板折叠成管并纵向密封。 发射管的另一实施例具有近似于扁平的冲洗流管的次要尺寸的短长度。

公开(公告)号：US4095745A

公开(公告)日：1978-06-20

申请号：US729838

申请日：1976-10-04

申请人： Mark H. Christy ,  Lloyd Spencer

发明人： Mark H. Christy ,  Lloyd Spencer

IPC分类号： A01G25/02 ,  B05B15/02

CPC分类号： A01G25/023

摘要： A continuous flow tube containing a series of emitters arranged to discharge through a wall of the flow tube, each emitter forming a flush flow passage collapsible to form a drip flow passage at a preselected low flow tube pressure; the emitters having side walls of such area with respect to the area of the flow tube, that when exposed transversely to initial flow through the flow tube the emitters form externally a series of flow restricting valves which rapidly raise the flow line pressure to a value at which drip flow occurs, thereby minimizing the number of emitters undergoing flush flow.One embodiment of the emitter is adapted to be installed by forcing the emitter into the flow tube from the exterior thereof. Another embodiment utilizes a flow tube initially in the form of a web which receives the emitters and is then rolled into a tube with the margins of the web circumferentially overlapped and bonded. A further embodiment utilizes a circumferential extension of the web to form an insect guard for the emitter outlets.The emitters being capable of modification to permit orientation edgewise to flow to minimize restriction to flow, for placement in the region adjacent the intake end of the flow tube, thereby to increase the total number of emitters for a given supply of water to the flow tube.The embodiments also being capable of modification to provide a relatively rigid mounting base for the flexible emitter arranged to receive an insect guard cap or distributor tube of small dimension.

摘要翻译： 一种连续流动管，其包含一系列发射器，其布置成通过流管的壁排出，每个发射器形成冲洗流动通道，其可折叠以形成预选的低流量管压力的滴流通道; 发射器具有相对于流管的区域具有这种区域的侧壁，当横向暴露于通过流管的初始流动时，发射器在外部形成一系列流动限制阀，其将流动管线压力快速地提高到 发生滴流，从而最小化正在冲洗流量的发射器的数量。

公开(公告)号：US4909441A

公开(公告)日：1990-03-20

申请号：US362073

申请日：1989-06-06

申请人： Mark H. Christy

发明人： Mark H. Christy

IPC分类号： B05B1/30

CPC分类号： B05B1/3006

摘要： A pressure modulated flow control valve, particularly adapted for water irrigation applications, comprises an unitary elastomeric pin defining a flow passage therethrough, a sub-chamber formed entirely in the pin and communicating with an inlet to the valve, and a flexible diaphragm separating the sub-chamber from the flow passage. In operation, the diaphragm is exposed to water pressure prevalent in the sub-chamber to flex into and vary the size of the flow passage to control and modulate the flow rate therethrough. The interchangeable pin is mounted in a housing of the control valve to effect a preselected near constant flow rate through the flow passage.

摘要翻译： 特别适用于水冲洗应用的压力调节流量控制阀包括限定通过其中的流动通道的整体弹性体销，整体形成在销中并与阀的入口连通的子室，以及将子部分分开的柔性隔膜 - 流动通道。 在操作中，隔膜暴露于子室中普遍存在的水压力以弯曲并改变流动通道的尺寸以控制和调节通过其中的流速。 可互换销安装在控制阀的壳体中，以通过流动通道实现预选的接近恒定的流速。

公开(公告)号：US4382549A

公开(公告)日：1983-05-10

申请号：US199523

申请日：1980-10-22

申请人： Mark H. Christy ,  Lloyd Spencer

发明人： Mark H. Christy ,  Lloyd Spencer

IPC分类号： A01G25/02 ,  A01G25/16 ,  B05B1/08

CPC分类号： A01G25/023

摘要： An irrigation emitter including a housing forming a chamber having diverging inlet and outlet walls, the diverging walls forming an apex which receives an end of an emitter plate therebetween; the emitter plate, when subject to pressure at the inlet wall below a predetermined low pressure occupying a position closing the inlet; the emitter plate, when subject to greater low pressure, forming momentarily with the outlet wall a flush flow outlet passage; the confronting surfaces of the outlet wall and emitter plate defining therebetween a drip flow passage. The emitter plate may be circular or rectangular and the portion of the chamber between the emitter plate and outlet wall may be enlarged to effect pressure reducing turbulent flow prior to discharge.

摘要翻译： 一种灌溉发射器，包括形成具有扩散的入口和出口壁的腔室的壳体，所述发散壁形成顶点，所述顶点接收其间的发射极板的端部; 所述发射极板在所述入口壁处受压时低于预定低压，占据关闭所述入口的位置; 发射极板当受到较大的低压时，与出口壁瞬间形成冲洗出口通道; 出口壁和发射极板的相对表面在其间限定滴流通道。 发射极板可以是圆形或矩形的，并且发射极板和出口壁之间的室的部分可以被放大以在放电之前实现减压湍流。

公开(公告)号：US4113180A

公开(公告)日：1978-09-12

申请号：US708062

申请日：1976-07-23

申请人： Mark H. Christy ,  Lloyd Spencer

发明人： Mark H. Christy ,  Lloyd Spencer

IPC分类号： A01G25/02 ,  B05B1/32

CPC分类号： A01G25/023

摘要： A flush-drip irrigation emitter including a compact emitter element, a housing enclosing the emitter element and an insect guard, the emitter element having a pair of confronting oppositely arched flexible walls defining a flush flow passage with sharp lateral edges, one of the walls having at least one drip duct, the walls being responsive to a minimal pressure difference to collapse against each other in mutual sealing relation and confine flow to the drip duct.The housing including telescopable complementary housing components provided with an inlet connectable to a water supply and an outlet, the emitter element including sealing means interposed between the housing components, the housing components having mutually engageable latch elements and a tool receiving channel to effect separation; the outlet being arranged to receive directly or indirectly through a small irrigation tube, an insect guard.

公开(公告)号：US4869432A

公开(公告)日：1989-09-26

申请号：US198336

申请日：1988-05-25

申请人： Mark H. Christy

发明人： Mark H. Christy

IPC分类号： A01G25/02 ,  B05B1/30

CPC分类号： B05B1/3006 ,  A01G25/023

摘要： A pressure modulated flow control valve, particularly adaptd for water irrigation applications, comprises an unitary elastomeric pin defining at least one flow passage therethrough and a flexible diaphragm overlying the flow passage, adjacent to an inlet to the valve. In operation, the diaphragm is exposed to water pressure prevalent at the inlet to the valve to flex into and vary the size of the passage to control and modulate the flow rate therethrough. In the preferred embodiment of this invention, the diaphragm will function to maintain a micro flow rate through the passage "near constant", e.g., selected from within the approximate overall maximum range of from 2.0 gph to 60.0 gph. The pin in interchangeable in a housing of the control valve to effect the desired near constant flow rate and is particularly adapted for use in pressure modulated drip-irrigation systems wherein water is communicated through the valve to a water distributing device, such as a sprayer or drip-type emitter.

摘要翻译： 特别适用于水冲洗应用的压力调节流量控制阀包括限定穿过其中的至少一个流动通道的单一弹性体销，以及邻近流体通道的柔性膜片，邻近阀门的入口。 在操作中，隔膜暴露于在阀的入口处流动的水压力以弯曲并改变通道的尺寸以控制和调节通过其的流速。 在本发明的优选实施例中，隔膜将用于保持通过通道“接近恒定”的微流量，例如从2.0gph至60.0gph的大致总最大范围内选择。 该销在控制阀的壳体中可互换以实现期望的近恒定流速，并且特别适用于压力调节滴灌系统，其中水通过阀连接到水分配装置，例如喷雾器或 滴水式发射器。