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1. 发明授权

US5871156A Sprinkler with removable valve seat 失效
标题翻译：具有可拆卸阀座的喷头
公开(公告)号：US5871156A
公开(公告)日：1999-02-16
申请号：US850213
申请日：1997-05-02
申请人： Kenneth L. Lawson
发明人： Kenneth L. Lawson
IPC分类号： B05B15/10 , A01G25/06
CPC分类号： B05B15/10 , Y10T137/6154
摘要： An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a valve head to normally prevent water inflow to a sprinkler case, whereas the filter screen prevents entry of small rocks and other particulate debris into the sprinkler case when the inlet control valve is open. The valve seat is removable from the top of the sprinkler case, without requiring disconnection of the case from a water supply line, to permit flushing of collected debris or to permit replacement of a damaged valve seat.
摘要翻译：具有入口控制阀的类型的灌溉喷洒器设置有与入口过滤网一体形成的可拆卸的阀座。阀座被定位成接合阀头以正常地防止水流入喷洒器壳体，而过滤网防止入口控制阀打开时小的岩石和其它颗粒物质进入喷洒器壳体。阀座可从喷洒器外壳的顶部移除，而不需要将外壳从供水管路断开，以允许冲洗收集的碎屑或允许更换损坏的阀座。

2. 发明授权

US5240184A Spreader nozzle for irrigation sprinklers 失效
标题翻译：灌溉喷头撒布机喷嘴
公开(公告)号：US5240184A
公开(公告)日：1993-08-31
申请号：US876062
申请日：1992-04-28
申请人： Kenneth L. Lawson
发明人： Kenneth L. Lawson
IPC分类号： B05B1/34 , B05B3/02 , B05B3/04
CPC分类号： B05B3/026 , B05B1/34 , B05B3/0422
摘要： An irrigation sprinkler nozzle for enhancing the distribution of close-in watering comprising a nozzle housing housing an inlet opening and an outlet opening with a tortious pathway therebetween for inducing turbulence into the water stream to produce a low pressure, small droplet size water spray.
摘要翻译：一种用于增强接近浇水分布的灌溉喷洒器喷嘴，其包括容纳入口开口的喷嘴壳体和在其间具有折射通路的出口开口，用于引起水流中的湍流以产生低压，小液滴尺寸的喷水。

3. 发明授权

US4537356A Drive assembly for a reaction drive sprinkler 失效
标题翻译：驱动组件用于反作用驱动喷头
公开(公告)号：US4537356A
公开(公告)日：1985-08-27
申请号：US607579
申请日：1984-05-07
申请人： Kenneth L. Lawson
发明人： Kenneth L. Lawson
IPC分类号： B05B3/16 , B05B3/08
CPC分类号： B05B3/0481 , B05B3/0477
摘要： A reaction drive sprinkler includes an improved drive assembly for rotating the sprinkler in steps about a water supply standpipe. The drive assembly comprises a fixed drive nozzle through which an inclined stream of irrigation water is projected for passage through a movable diverter tube mounted in front of the drive nozzle. The diverter tube is shifted by a reversing mechanism for slightly diverting the water stream for alternated interruption by a pair of laterally oppositely angled deflector spoons on a pivoting reaction drive arm. More particularly, the diverter tube directs the water stream for cyclic interruption by one of the deflector spoons to rotate the sprinkler stepwise in one direction through a selected arcuate path and then shifts the diverter tube to direct the water stream for interruption by the other deflector spoon for stepwise sprinkler rotation in the opposite direction.
摘要翻译：反应驱动喷洒器包括改进的驱动组件，用于围绕供水立管旋转喷洒器。驱动组件包括固定的驱动喷嘴，倾斜的冲洗水流通过该驱动喷嘴通过安装在驱动喷嘴前面的可移动转向管。转向管由换向机构移动，用于通过在枢转的反作用驱动臂上的一对横向相对的倾斜器勺轻微地转向水流以进行交替的中断。更具体地，分流管引导水流通过其中一个偏转器勺子进行循环中断，以使喷洒器沿一个方向逐步旋转通过选定的弧形路径，然后移动分流管以引导水流被另一个偏转勺子中断用于逐步洒水喷头在相反方向旋转。

4. 发明授权

US06186413B1 Debris tolerant inlet control valve for an irrigation sprinkler 有权
标题翻译：用于灌溉喷洒器的碎屑容许入口控制阀
公开(公告)号：US06186413B1
公开(公告)日：2001-02-13
申请号：US09370119
申请日：1999-08-06
申请人： Kenneth L. Lawson
发明人： Kenneth L. Lawson
IPC分类号： B05B1510
CPC分类号： B05B15/70 , B05B15/74
摘要： An improved inlet control valve is provided for controlling water inflow to an irrigation sprinkler, wherein the inlet control valve exhibits improved tolerance to passage of small grit and debris. The inlet control valve includes a valve member normally engaging a valve seat to prevent water inflow to the irrigation sprinkler, and adapted for movement to a modulated open position to permit water inflow to the sprinkler at a regulated pressure. The valve member carries a flow restrictor disposed upstream from the valve seat to produce, when the valve member is in the open position, a first pressure drop which cooperates with a second pressure drop between the valve seat and valve member to regulate the water inflow pressure. The inclusion of the upstream flow restrictor and the associated first pressure drop effectively reduces the magnitude of the second pressure drop across the valve seat and thereby permits the valve member to open with an increased clearance relative to the valve seat. Such increased clearance enhances flush flow passage of grit and debris past the valve seat, with reduced risk of particulate entrapment between the valve member and valve seat.
摘要翻译：提供了一种改进的入口控制阀，用于控制向灌溉喷洒器的水流入，其中入口控制阀具有改进的对小砂砾和碎屑通过的耐受性。入口控制阀包括通常接合阀座的阀构件，以防止水流入灌溉喷洒器，并适于运动到调制打开位置，以允许水以规定的压力流入喷洒器。阀构件承载设置在阀座上游的限流器，当阀构件处于打开位置时，产生与阀座与阀构件之间的第二压降配合的第一压降，以调节水流入压力。上游限流器和相关联的第一压降的包含有效地减小了跨越阀座的第二压降的大小，从而允许阀构件以相对于阀座增加的间隙打开。这种增加的间隙增加了通过阀座的砂砾和碎屑的冲洗流通，减少了阀构件和阀座之间的颗粒物截留的风险。

5. 发明授权

US4781327A Dynamic protective shield for pop-up sprinklers 失效
标题翻译：动态防护罩弹出式喷头
公开(公告)号：US4781327A
公开(公告)日：1988-11-01
申请号：US061159
申请日：1987-06-12
申请人： Kenneth L. Lawson , Enric C. Mendoza , Edward M. Troup, deceased
发明人： Kenneth L. Lawson , Enric C. Mendoza , Edward M. Troup, deceased
IPC分类号： B05B3/16 , B05B15/10 , B05B1/28
CPC分类号： B05B15/10 , B05B3/0477 , B05B3/0481
摘要： A pop-up guard or shield for use with a pop-up sprinkler mounted in a casing buried in the ground to protect against the entry of dirt, sand, weeds, and the like into the casing during sprinkler operation. The guard includes a spring biased sleeve which pops up together with the sprinkler during sprinkler extension to the operative position, and is retracted into the casing during movement of the sprinkler to the inoperative position.
摘要翻译：一个弹出式防护装置或屏蔽罩，用于安装在埋在地下的套管中的弹出式喷洒器，以防止在喷洒器操作期间污物，沙子，杂草等进入壳体。防护罩包括弹簧偏置套筒，喷洒器在喷洒器延伸到操作位置时与喷洒头一起弹起，并在喷洒器移动到非操作位置时缩回到壳体中。

6. 发明授权

US06929194B2 Turbine speed control for rotary irrigation sprinklers 有权
标题翻译：旋转灌溉喷头的涡轮转速控制
公开(公告)号：US06929194B2
公开(公告)日：2005-08-16
申请号：US10365956
申请日：2003-02-12
申请人： Kenneth L. Lawson
发明人： Kenneth L. Lawson
IPC分类号： B05B3/04 , B05B15/10
CPC分类号： B05B3/0422
摘要： In a turbine driven rotary irrigation sprinkler having a fixed stator with means for bypassing a portion of the water entering the sprinkler around the turbine so as to be able to adjust and control the rate of sprinkler rotation, the improvement of a rotatable stator cooperating with the fixed stator to provide infinite adjustability between the no bypass flow and full bypass flow conditions.
摘要翻译：在具有固定定子的涡轮驱动旋转灌溉喷洒器中，具有用于绕过围绕涡轮机进入喷洒器的一部分水的装置，以便能够调节和控制喷洒器旋转速率，改进与可旋转定子配合的可旋转定子固定式定子，提供无旁路流量与完全旁路流量条件之间的无限可调性。

7. 发明授权

US5222669A Retaining cover and sealing assembly for pop-up sprinklers 失效
标题翻译：弹出式喷头的保护盖和密封组件
公开(公告)号：US5222669A
公开(公告)日：1993-06-29
申请号：US840401
申请日：1992-02-24
申请人： Kenneth L. Lawson
发明人： Kenneth L. Lawson
IPC分类号： B05B15/10
CPC分类号： B05B15/10
摘要： A pop-up irrigation sprinkler including a sprinkler case having an open upper end through which a sprinkler nozzle coupled to a sprinkler mechanism can be extended, the sprinkler mechanism being retained within the case by a retaining ring mounted in a groove in the case, and a retaining cover and sealing assembly for sealing the open end of the case around the nozzle and for preventing the split ring from being inadvertently unseated from the groove.
摘要翻译：一种弹出式灌溉喷洒器，包括具有敞开的上端的喷洒器壳体，通过该喷洒器外壳连接有与喷洒器机构连接的喷洒喷嘴，喷洒器机构通过安装在壳体中的凹槽中的保持环保持在壳体内，以及保持盖和密封组件，用于密封围绕喷嘴的壳体的开口端，并且用于防止开口环从槽中无意中脱离。

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