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公开(公告)号：US6139286A
公开(公告)日：2000-10-31
申请号：US162049
申请日：1998-09-28
摘要： A new and improved automatic venting back pressure valve is provided in a valve body including a back pressure chamber having a fluid inlet and a fluid outlet. A spring loaded back pressure member covers the fluid outlet which is movable between a normally closed position wherein the back pressure member seals off the fluid outlet and an open position wherein the back pressure member is displaced from the fluid outlet to permit fluid to flow through the back pressure chamber from fluid inlet to fluid outlet in response to increased fluid pressure in the back pressure chamber. A gas by-pass orifice is disposed in an upper portion of the back pressure chamber which connects the back pressure chamber to a downstream portion of the fluid outlet. The gas by-pass orifice has a diametrical dimension selected to permit flow of gases through the orifice but to substantially not permit flow of liquids through the orifice. Air or gas entering the back pressure valve is automatically vented from the back pressure chamber as the valve fills with each pump stroke to maintain hydraulic firmness and provide improved more accurate fluid flow.
摘要翻译： 一种新的改进的自动排气背压阀设置在阀体中，该阀体包括具有流体入口和流体出口的背压室。 弹簧加载的后部压力构件覆盖流体出口，流体出口可在常闭位置之间移动，其中背压构件密封流体出口和打开位置，其中背压构件从流体出口移位以允许流体流过 响应于背压室中的流体压力增加，背压室从流体入口到流体出口。 在背压室的上部设置有气体旁通孔，其将背压室连接到流体出口的下游部分。 气体旁通孔具有选定的直径尺寸以允许气体流过孔口，但是基本上不允许液体流过孔口。 进入背压阀的空气或气体在阀门充满每个泵冲程时自动从背压室排出，以保持液压坚固性并提供更精确的流体流动。
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公开(公告)号：US5676531A
公开(公告)日：1997-10-14
申请号：US627906
申请日：1996-03-21
CPC分类号： F04B43/02 , F04B43/04 , F04B53/147
摘要： A new and improved liquid metering pump for use in pumping sterile fluids and foodstuffs includes a separable autoclavable pump head assembly. The diaphragm-containing pump head may be preassembled as a unit and sterilized to provide a pump head having sterile product contact surfaces. The pre-sterilized pump head may be mounted and connected to an electronic solenoid metering pump and used for delivering fluids in food preparation, medical and pharmaceutical applications.
摘要翻译： 用于泵送无菌流体和食品的新的改进的液体计量泵包括可分离的耐高压灭菌的泵头组件。 隔膜泵头可以预先组装成一个单元并进行灭菌以提供具有无菌产品接触表面的泵头。 预灭菌的泵头可以安装并连接到电子螺线管计量泵，并用于在食物制备，医疗和药物应用中输送流体。
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公开(公告)号：US08322994B2
公开(公告)日：2012-12-04
申请号：US12619069
申请日：2009-11-16
IPC分类号： F04B23/00
摘要： A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm member defines a boundary of the product chamber. The diaphragm member is capable of being reciprocated to cause pumping displacements. A discharge side is disposed downstream from the outlet valve. A passageway is disposed in fluid communication between the discharge side and the product chamber. A valve is disposed in the passageway. The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime.
摘要翻译： 适用于计量泡腾气体的隔膜计量泵。 泵具有泵头，其具有具有入口端的产品室，其具有单向入口阀和具有单向出口阀的出口端。 可移动隔膜构件限定产品室的边界。 隔膜构件能够往复运动以引起泵送位移。 排出侧设置在出口阀的下游。 通道设置成在排放侧和产品室之间流体连通。 阀门设置在通道中。 间歇地打开阀，以允许液体以有效地从产品室吹扫气体的量重新进入产品室以防止质量损失。
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公开(公告)号：US06930486B2
公开(公告)日：2005-08-16
申请号：US10636929
申请日：2003-08-07
CPC分类号： G01N27/06
摘要： A conductivity probe having a modular design. A probe body has a distal end and a proximal end. The distal end includes a recessed portion for providing a seat for an O-ring that seals an electrode tip assembly. The probe body also includes a set of internal threads for engaging with cooperating threads disposed on the electrode tip assembly. The distal end of the body terminates in a bottom wall having an opening leading to a connection pipe attached to a junction box. The exterior of the probe body includes a stepped down profile of varying constant diameters with a side port formed in the probe body for receiving a temperature compensation probe. The probe body includes a set of external threads and wrench flats for installing the probe into a boiler conduit. The design is completely modular with minimal assembly required. The probe body is machined easily and features hard stops for trouble-free assembly. Also, there is no potting of the electrical components required.
摘要翻译： 具有模块化设计的电导率探针。 探针体具有远端和近端。 远端包括用于提供用于密封电极末端组件的O形环的座的凹部。 探针体还包括一组内螺纹，用于与设置在电极末端组件上的配合螺纹啮合。 本体的远端终止于底壁，该底壁具有通向连接到接线盒的连接管的开口。 探头主体的外部包括具有变化的恒定直径的逐渐变形的轮廓，侧面端口形成在探针主体中，用于接收温度补偿探针。 探头主体包括一组用于将探头安装到锅炉导管中的外螺纹和扳手平面。 该设计是完全模块化的，需要最少的组装。 探头主体易于加工，并具有硬停止，无故障组装。 此外，没有所需的电气部件的灌封。
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公开(公告)号：US5860793A
公开(公告)日：1999-01-19
申请号：US641200
申请日：1996-04-30
IPC分类号： F04B43/00 , F04B43/067 , F04B49/06 , F04B9/08 , F04B35/02
CPC分类号： F04B49/065 , F04B43/009 , F04B43/067 , F04B2203/0209 , Y10T74/18296
摘要： A new and improved diaphragm metering pump is provided with a modular removable drive assembly. The removable drive assembly provides rotation to an eccentric shaft within the pump and is disposed outside rotary bearings for the eccentric shaft and outside sealing elements containing hydraulic fluid in the pump housing. In a preferred embodiment, a readily accessible mechanically activated hydraulic refill valve cartridge is provided to hydraulically balance the diaphragm. In a preferred embodiment, a push to prime air bleeder valve is provided permitting automatic priming of the hydraulic system without requiring disconnection of any valves. The pump is designed to interchangeably receive a number of diaphragm assemblies including an improved leak detection diaphragm and a double-sided leak detection diaphragm. In a preferred embodiment, a diagnostics window is provided permitting visual inspection of the operating condition of various valves connected to the hydraulic system.
摘要翻译： 一个新的和改进的隔膜计量泵设有一个模块化的可移动驱动组件。 可移动驱动组件向泵内的偏心轴提供旋转，并且设置在用于偏心轴的旋转轴承外侧和在泵壳体中包含液压流体的外部密封元件的外侧。 在优选实施例中，提供容易接近的机械活动的液压再充填阀芯以液压平衡隔膜。 在一个优选实施例中，提供推入吹气阀，允许液压系统的自动启动，而不需要断开任何阀门。 泵被设计成可互换地接收多个膜片组件，其包括改进的泄漏检测膜片和双面泄漏检测膜片。 在优选实施例中，提供诊断窗口，允许目视检查连接到液压系统的各种阀的操作状态。
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公开(公告)号：US08708678B2
公开(公告)日：2014-04-29
申请号：US12788818
申请日：2010-05-27
CPC分类号： F04C15/0069 , F04C2/084 , F04C2/086 , F04C11/008 , F04C13/001 , F04C15/0088 , F04C2230/603 , F04C2240/30 , F05C2225/04
摘要： A nonmetallic pump with a gear pump assembly having an adapter spool mounted to an electric motor. The pump assembly is designed to reduce manufacturing costs and to provide access for many service and maintenance tasks to be performed without breaking any of the pipe connections. The pump assembly also includes a splined shaft system and a lubricating fluid circulation system with spiral grooves located inside a pair of bearings disposed on opposite sides of the gear flights. The assembly also includes a replaceable precision liner that surrounds the gear flights to maintain a tight tolerance for optimal performance of the pump. Also, an O-ring disposed inside the front cover of the assembly provides for operation of the pump over a wide temperature variation with relatively loose manufacturing tolerances.
摘要翻译： 一种具有齿轮泵组件的非金属泵，其具有安装到电动机上的适配器线圈。 泵组件旨在降低制造成本，并提供对要执行的许多维护和维护任务的访问，而不会破坏任何管道连接。 泵组件还包括花键轴系统和润滑流体循环系统，其具有位于齿轮间隙相对侧上的一对轴承内的螺旋槽。 该组件还包括可更换的精密衬套，其围绕齿轮间隙以保持对泵的最佳性能的严格公差。 此外，设置在组件的前盖内的O形环提供了在相对宽松的制造公差的宽温度变化下的泵的操作。
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公开(公告)号：US20100233007A1
公开(公告)日：2010-09-16
申请号：US12788818
申请日：2010-05-27
IPC分类号： F01C1/18
CPC分类号： F04C15/0069 , F04C2/084 , F04C2/086 , F04C11/008 , F04C13/001 , F04C15/0088 , F04C2230/603 , F04C2240/30 , F05C2225/04
摘要： A nonmetallic pump with a gear pump assembly having an adapter spool mounted to an electric motor. The pump assembly is designed to reduce manufacturing costs and to provide access for many service and maintenance tasks to be performed without breaking any of the pipe connections. The pump assembly also includes a splined shaft system and a lubricating fluid circulation system with spiral grooves located inside a pair of bearings disposed on opposite sides of the gear flights. The assembly also includes a replaceable precision liner that surrounds the gear flights to maintain a tight tolerance for optimal performance of the pump. Also, an O-ring disposed inside the front cover of the assembly provides for operation of the pump over a wide temperature variation with relatively loose manufacturing tolerances.
摘要翻译： 一种具有齿轮泵组件的非金属泵，其具有安装到电动机上的适配器线圈。 泵组件旨在降低制造成本，并提供对要执行的许多维护和维护任务的访问，而不会破坏任何管道连接。 泵组件还包括花键轴系统和润滑流体循环系统，其具有位于齿轮间隙相对侧上的一对轴承内的螺旋槽。 该组件还包括可更换的精密衬套，其围绕齿轮间隙以保持对泵的最佳性能的严格公差。 此外，设置在组件的前盖内的O形环提供了在相对宽松的制造公差的宽温度变化下的泵的操作。
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公开(公告)号：US20100232995A1
公开(公告)日：2010-09-16
申请号：US12619069
申请日：2009-11-16
IPC分类号： F04B49/22
摘要： A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm member defines a boundary of the product chamber. The diaphragm member is capable of being reciprocated to cause pumping displacements. A discharge side is disposed downstream from the outlet valve. A passageway is disposed in fluid communication between the discharge side and the product chamber. A valve is disposed in the passageway. The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime.
摘要翻译： 适用于计量泡腾气体的隔膜计量泵。 泵具有泵头，其具有具有入口端的产品室，其具有单向入口阀和具有单向出口阀的出口端。 可移动隔膜构件限定产品室的边界。 隔膜构件能够往复运动以引起泵送位移。 排出侧设置在出口阀的下游。 通道设置成在排放侧和产品室之间流体连通。 阀门设置在通道中。 间歇地打开阀，以允许液体以有效地从产品室吹扫气体的量重新进入产品室以防止质量损失。
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公开(公告)号：US07175397B2
公开(公告)日：2007-02-13
申请号：US10410935
申请日：2003-04-10
IPC分类号： F04B49/22
摘要： A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm member defines a boundary of the product chamber. The diaphragm member is capable of being reciprocated to cause pumping displacements. A discharge side is disposed downstream from the outlet valve. A passageway is disposed in fluid communication between the discharge side and the product chamber. A valve is disposed in the passageway. The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime.
摘要翻译： 适用于计量泡腾气体的隔膜计量泵。 泵具有泵头，其具有具有入口端的产品室，其具有单向入口阀和具有单向出口阀的出口端。 可移动隔膜构件限定产品室的边界。 隔膜构件能够往复运动以引起泵送位移。 排出侧设置在出口阀的下游。 通道设置成在排放侧和产品室之间流体连通。 阀门设置在通道中。 间歇地打开阀，以允许液体以有效地从产品室吹扫气体的量重新进入产品室以防止质量损失。
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公开(公告)号：US20110027108A1
公开(公告)日：2011-02-03
申请号：US12777227
申请日：2010-05-10
IPC分类号： F04B43/067
CPC分类号： F04B13/00 , F04B53/16 , F05C2225/00
摘要： A reagent head has a housing, an inlet and an outlet. Check valves and other details are not shown for clarity. The reagent head may have a dish where a diaphragm may seat when in a fully forward position. The reagent head may be constructed primarily from a high-strength material, e.g. ductile iron, in a substrate layer. The reagent head may also comprise a polymer layer. The polymer-metal interface may incorporate key grooves to provide an increased surface area for the polymer-metal bond. The key grooves may be any shape which increases the bonding surface area. Certain key groove cross-sectional shapes, such as dovetails, will create an interlocking interface that may provide increase resistance to separation of the polymer layer from the substrate layer.
摘要翻译： 试剂头具有壳体，入口和出口。 为清楚起见，未显示止回阀和其他细节。 试剂头可以具有在完全向前位置时隔膜可以座位的盘。 试剂头可以主要由高强度材料构成，例如， 球墨铸铁，在基底层中。 试剂头还可以包含聚合物层。 聚合物 - 金属界面可以包括键槽，以提供聚合物 - 金属键的增加的表面积。 键槽可以是增加接合表面积的任何形状。 某些键槽横截面形状，例如燕尾形，将产生互锁界面，其可以提供增加的抗性，以使聚合物层与基底层分离。
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