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1. 发明申请

US20230097493A1 OIL SCAVENGE PUMP, HYDRAULIC DEVICE HAVING THE SAME AND METHOD FOR ASSEMBLING THE SAME 有权
公开(公告)号：US20230097493A1
公开(公告)日：2023-03-30
申请号：US17489442
申请日：2021-09-29
申请人： CHIPMAST AUTOTRONIX CO., LTD.
发明人： HUNG-TA KUO , CHI-JU LEE
IPC分类号： F04B43/00 , F04B43/067
摘要： The present disclosure provides an oil scavenge pump, which includes a cap member, a piston member and a resilient member. The cap member and the piston member are connected to each other and with the resilient member therebetween. The cap member includes a cap head, a valve connected to the cap head, a resilient unit disposed between the cap head and the valve, and a first sphere disposed between the resilient unit and the valve. The piston member includes a valve stopper, a main portion, a second sphere, a rod portion, a first-seal ring and a second-seal ring. The main portion has two ends respectively connected to the valve stopper and the rod portion. The second sphere is disposed between the valve stopper and the main portion. The first-seal ring and the second-seal ring respectively surround the main portion and the rod portion.

2. 发明授权

US11426697B2 Plunger pumping arrangement for a hollow fiber filter 有权
公开(公告)号：US11426697B2
公开(公告)日：2022-08-30
申请号：US17014485
申请日：2020-09-08
申请人： REPLIGEN CORPORATION
发明人： Rudolf Pavlik
IPC分类号： B01D63/02 , B01D69/08 , B01D37/04 , B01D35/26 , B01D29/11 , B01D29/90 , F04B43/00 , F04B43/06 , F04B53/20 , C12M1/00 , C12M1/12 , F04B43/067
摘要： A fluid filtration assembly includes a filter housing having a first end for fluid connection with a fluid storage vessel. A filter cartridge is disposable within the filter housing, and a plunger pump is coupled at a second end of the filter housing. The plunger pump includes a housing having a rigid portion and a flexible portion. The flexible portion has a plunger-engaging portion for coupling to the plunger of an actuator. The flexible portion selectively movable with respect to the rigid portion via the actuator. The filter cartridge can be a hollow fiber filter. The plunger pump can be configured to induce alternating tangential flow in at least a portion of the assembly. The fluid filtration assembly can be provided as a disposable single-use arrangement.

3. 发明申请

US20220228586A1 DIAPHRAGM PUMP AND BLOOD PURIFICATION APPARATUS USING SAME 有权
公开(公告)号：US20220228586A1
公开(公告)日：2022-07-21
申请号：US17617289
申请日：2020-06-05
申请人： Nikkiso Company Limited
发明人： Fumihiko Ishizaki , Yuya Menjoh
IPC分类号： F04B43/067 , A61M1/14 , A61M1/36 , A61M60/109 , A61M60/268 , A61M60/37 , A61M60/427 , A61M60/538 , F04B43/073
摘要： A diaphragm pump, includes a case, a diaphragm dividing a space in the case into a first space and a second space, a liquid feed flow path including an inflow path to introduce a liquid to be fed into the first space and an outflow path to discharge the liquid to be fed from the first space, a drive unit including a compression/decompression device that repeatedly causes displacement of the diaphragm by repeating compression and decompression of a driving fluid filling the second space, and a valve mechanism to open and close the inflow path and the outflow path. The drive unit includes a pressure release mechanism to release pressure of the driving fluid after the driving fluid is compressed or decompressed by the compression/decompression device.

4. 发明申请

US20210270254A1 DOUBLE MEMBRANE PUMP FOR USE IN A HOMOGENISING APPARATUS OF A FLUID PRODUCT AND METHOD FOR DETECTING LEAKAGES IN SAID PUMP 有权
公开(公告)号：US20210270254A1
公开(公告)日：2021-09-02
申请号：US17054471
申请日：2020-02-06
申请人： GEA MECHANICAL EQUIPMENT ITALIA S.P.A.
发明人： ANNACHIARA TONELLI , LEONARDO MAGGI , MASSIMILIANO BENASSI , MATTEO FOLEZZANI
IPC分类号： F04B43/00 , A01J11/16 , F04B43/067 , G01M3/24
摘要： Method for detecting leakages of a service fluid (P3) housed within two membranes (6, 16) that separate a hydraulic section containing a hydraulic fluid (P2) from a working section containing a fluid product (P1) to homogenise in a double membrane pump (1), the method comprising the steps of: detecting a physical magnitude (S) representing a property of the fluid contained within the membranes (6, 16); and establishing if the physical magnitude (S) detected is associated with a first condition that is indicative of the mixing of the service fluid (P3) with said fluid product (P1), or if it is associated with a second condition that is indicative of the mixing of the service fluid (P3) with the hydraulic fluid (P2), or if it is associated with a third condition that is indicative of the mixing of the service fluid (P3) both with the fluid product (P1) and the hydraulic fluid (P2).

5. 发明授权

US10799816B2 Plunger pumping arrangement for a hollow fiber filter 有权
公开(公告)号：US10799816B2
公开(公告)日：2020-10-13
申请号：US15856210
申请日：2017-12-28
申请人： REPLIGEN CORPORATION
发明人： Rudolf Pavlik
IPC分类号： B01D29/90 , B01D35/26 , B01D29/11 , F04B43/02 , B01D63/02 , C12M1/00 , B01D69/08 , B01D37/04 , C12M1/12 , F04B43/00 , F04B43/067 , F04B53/20
摘要： A fluid filtration assembly includes a filter housing having a first end for fluid connection with a fluid storage vessel. A filter cartridge is disposable within the filter housing, and a plunger pump is coupled at a second end of the filter housing. The plunger pump includes a housing having a rigid portion and a flexible portion. The flexible portion has a plunger-engaging portion for coupling to the plunger of an actuator. The flexible portion selectively movable with respect to the rigid portion via the actuator. The filter cartridge can be a hollow fiber filter. The plunger pump can be configured to induce alternating tangential flow in at least a portion a the assembly. The fluid filtration assembly can be provided as a disposable single-use arrangement.

6. 发明授权

US10646641B1 Liquid dispensing pump 有权
公开(公告)号：US10646641B1
公开(公告)日：2020-05-12
申请号：US15660350
申请日：2017-07-26
申请人： Micromo Electronics, Inc.
发明人： Robert Gloeckner , Isaac Diggs
IPC分类号： A61M5/145 , A61M5/142 , A61M5/315 , F04B43/12 , F04B43/067
摘要： A liquid dispensing pump includes a lead screw having a lead screw shaft extending along a lead screw axis, and the lead screwing is operably connected to a piston connected to a liquid reservoir. A thrust bearing is connected to the lead screw and configured to support an axial force on the lead screw when dispensing liquid. A magnet is engaged to the thrust bearing so as to move in response to the axial force on the lead screw. A magnetic transducer is mounted in proximity to the magnet and configured to generate an output signal in responsive to the magnet move.

7. 发明授权

US10371133B2 Water pump assembly 有权
公开(公告)号：US10371133B2
公开(公告)日：2019-08-06
申请号：US15595331
申请日：2017-05-15
申请人： Bradley John Schrank , Nathan Rittenour
发明人： Bradley John Schrank , Nathan Rittenour
IPC分类号： F04B9/14 , F04B43/10 , F04B43/067 , F04B43/107 , F04B47/02 , F04B43/08 , F04B49/24 , F04B53/10 , F16K31/06
摘要： A water pump assembly includes a lower housing configured for being positioned within a well. The lower housing includes a bladder therein. The bladder expands to force water within the housing into an outlet of a valve apparatus and the bladder contracts to draw water into the housing. A cylinder and piston fluidly coupled to an inlet of the valve apparatus and the inlet is fluidly coupled to the bladder. A one way valve is positioned within the valve apparatus and fluidly connects an inlet chamber including the inlet to an outlet chamber including the outlet. The one way valve allows water to flow from the outlet chamber into the inlet chamber and restricts water from flowing from the inlet chamber into the outlet chamber. An outlet conduit is fluidly coupled to the outlet of the valve apparatus to carry the water where desired.

8. 发明授权

US10156227B2 Electro-osmotic pump using reversible electrode reaction and fluid pumping system using same 有权
公开(公告)号：US10156227B2
公开(公告)日：2018-12-18
申请号：US14761063
申请日：2013-12-18
申请人： SOGANG UNIVERSITY RESEARCH FOUNDATION
发明人： Woonsup Shin
IPC分类号： F04B17/00 , F04B19/00 , F04B43/067 , A61K9/00
摘要： An electro-osmotic pump using a reversible electrode reaction is provided, the electro-osmotic pump using a reversible electrode reaction comprising: a membrane that allows movement of a fluid; and first and second electrodes that are arranged on both sides of the membrane, respectively, and composed of a porous material or structure to allow the movement of the fluid, and a material to cause a reversible electrochemical reaction, wherein the first and second electrodes are alternately and reversely supplied with a voltage to make the electrochemical reaction repeat alternately forward and backward, and as a result, the alternate change of the movement direction of the fluid generates a pumping force to repair the first and second electrodes.

9. 发明申请

US20180231407A1 SUPERVISED PROPORTIONAL METERING DEVICE AND METHODS FOR MONITORING A METERING PUMP 审中-公开
公开(公告)号：US20180231407A1
公开(公告)日：2018-08-16
申请号：US15750234
申请日：2016-07-13
申请人： DOSATRON INTERNATIONAL
发明人： Gregory LUCAS , Christophe CHARRIERE
IPC分类号： G01F1/36 , F04B13/02 , F04B43/067 , F04B9/10
CPC分类号： G01F1/36 , F04B9/10 , F04B13/02 , F04B43/067 , F04B2205/02 , F04B2207/70
摘要： Disclosed is a monitored proportional metering device including a liquid metering pump having an inlet, an outlet, a suction nozzle, and a mechanism for adjusting the flow in the nozzle. The metering device is also includes a detection assembly, the assembly including at least a unit for detecting the pressure variation in the nozzle, which unit is arranged between the first suction valve and the mixing chamber, a water meter at the inlet, a probe for measuring the level in the container of material to be suctioned, a unit for determining the position of the mechanism for adjusting the volume to be suctioned, and a man/machine interface for processing, recording, and displaying the data from the detection unit. Also disclosed are methods for monitoring a metering pump implementing the proportional metering device.

10. 发明申请

US20170037840A1 DIAPHRAGM PUMP WITH REDUCED LEAK EXTENSION IN THE EVENT OF OVERLOAD 审中-公开
标题翻译：在过载事件中具有减少的泄漏扩展的膜片泵
公开(公告)号：US20170037840A1
公开(公告)日：2017-02-09
申请号：US15304257
申请日：2015-07-10
申请人： ProMinent GmbH
发明人： Christian ARNOLD , Martin REINHARD , Roland ELGETZ
IPC分类号： F04B43/073 , F04B43/00 , F04B43/067
CPC分类号： F04B43/0733 , F04B43/009 , F04B43/067 , F04B2203/0902
摘要： The present invention concerns a diaphragm pump comprising a delivery chamber separated from a hydraulic chamber by way of a diaphragm, wherein the delivery chamber is respectively connected to a suction connection and a pressure connection and the hydraulic chamber which can be filled with a working fluid can be acted upon with a pulsating working fluid pressure and the diaphragm can be reciprocated between a pressure position in which the volume of the delivery chamber is smaller and a suction position in which the volume of the delivery chamber is larger. In that arrangement the hydraulic chamber is connected to a working fluid supply by way of a leak replenishment valve, wherein the leak replenishment valve is so designed that when the pressure in the hydraulic chamber in the suction position of the diaphragm is less than a predetermined minimum value pMin the leak replenishment valve opens and the hydraulic chamber has an outlet passage which is closed by a pressure limiting valve which is so designed that if the pressure in the hydraulic chamber rises above a predetermined maximum value pMax the pressure limiting valve opens and working fluid can leave the hydraulic chamber by way of the outlet valve. To provide a corresponding diaphragm pump which automatically reduces the metering power in the overpressure situation without the use of additional sensors being necessary it is proposed according to the invention that the working fluid supply is arranged in a first and in a second chamber, the two chambers being connected together by way of a first connecting passage.
摘要翻译：本发明涉及一种隔膜泵，其包括通过隔膜与液压室分离的输送室，其中输送室分别连接到吸入连接和压力连接，并且液压室可以填充有工作流体罐以脉动的工作流体压力作用，并且隔膜可以在输送室的体积较小的压力位置和输送室的体积较大的吸入位置之间往复运动。在该布置中，液压室通过泄漏补充阀连接到工作流体供应器，其中泄漏补充阀被设计成当隔膜的吸入位置中液压室中的压力小于预定最小值时泄漏补充阀打开时的值pM，并且液压室具有由限流阀封闭的出口通道，该限流阀被设计成如果液压室中的压力升高到超过预定最大值pMax，则限压阀打开并且工作流体可以通过出口阀离开液压室。为了提供一种相应的隔膜泵，其在超压情况下自动降低计量功率，而不需要使用额外的传感器。根据本发明，提出了工作流体供应设置在第一和第二室中，两个室通过第一连接通道连接在一起。

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