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公开(公告)号：EP0942171A3
公开(公告)日：2000-02-09
申请号：EP99201777.2
申请日：1997-04-11
申请人： GRACO INC.
IPC分类号： F04B43/073 , F04B9/135 , F16K15/02
CPC分类号： F04B9/135 , F04B43/0736 , F04B53/16 , F04B53/22
摘要： An air operated double diaphragm pump 10 is provided with an air valve assembly which allows the valve cup 38 to move in a rectangular pattern which greatly reduces the cost and number of parts required for such an air valve. The main housing 12 of the pump 10 is mounted on a fluid base 20 to which the lines of fluid are attached. This allows removal of the pump for servicing by undoing several basic fasteners such as nuts and bolts 18 without requiring removal of the fluid fittings to the base 20. Thus, in the event of a pump malfunction, the pump may be easily replaced while the fluid fittings remain intact. Provision is also made for additional passages 54, 56 into each air chamber 44, 46 for operation via an externally operated solenoid valve. A one-piece check valve 26 construction is utilised with the part having a central sealing disk 26A having a plurality of radially axially extending guide members 26B extending therefrom wherein each of the guide members has an outer diameter sized to slidingly fit within a cylindrical cavity 28 and each of the guide members 26B having axially opposite the sealing disk 26A a plurality of spring loaded fingers 26D which serve to bias the check valve 26 into a closed position.
摘要翻译： 气动双隔膜泵10设置有空气阀组件，其允许阀杯38以矩形图案移动，这大大降低了这种空气阀所需的部件的成本和数量。 泵10的主壳体12安装在流体管线附接到的流体基座20上。 这允许通过松开几个基本紧固件例如螺母和螺栓18来拆卸泵以进行维修，而不需要将流体配件移除到基部20.因此，在泵发生故障的情况下，可以容易地更换泵，而流体 配件保持完好。 还为每个气室44,46中的附加通道54,56进行设置，以通过外部操作的电磁阀进行操作。 采用单件式止回阀26构造，该部件具有中央密封盘26A，中央密封盘26A具有多个从其延伸的径向轴向延伸的导向构件26B，其中每个导向构件具有外径，其大小可滑动地配合在圆柱形空腔28内 并且每个导向构件26B具有与密封盘26A轴向相对的多个弹簧加载指状物26D，其用于将止回阀26偏压到关闭位置。
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公开(公告)号：EP0859912A4
公开(公告)日：1999-02-03
申请号：EP96936952
申请日：1996-10-25
申请人： WILDEN PUMP & ENG
发明人： DUNCAN GREGORY S
IPC分类号： F04B43/06 , F01L25/06 , F04B9/129 , F04B9/137 , F04B43/073 , F04B45/053 , F04B17/00
CPC分类号： F01L25/063 , F04B43/0736 , Y10S91/02 , Y10T137/86606
摘要： A pump having a center section (36) including an air valve (76) is arranged with air chambers to either side of an actuator housing. Diaphragms are associated with the air chambers to create enclosed cavities. Pumping chambers are positioned outwardly of the diaphragms and formed by intake and exhaust manifolds (20, 22). The actuator uses a pilot shifting shaft (62) which is shuttled by movement of the diaphragms. An air valve is controlled by the shuttle shifting shaft to control flow to and from the air chambers. The passageways from the air chambers to exhaust find the passage to the outlet being at least as restrictive to air flow as the remainder of the passageways. A diffuser includes a thin space between two surfaces, one of the surfaces being part of a porous block (96) of material.
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公开(公告)号：EP0781922A1
公开(公告)日：1997-07-02
申请号：EP95203667.1
申请日：1995-12-28
发明人： Pierik, Johannes
IPC分类号： F04B43/073
CPC分类号： F04B43/0736
摘要： Double-acting membrane pump. The pump comprises two membranes coupled to one another, pumping being carried out alternately in a first pump chamber and in a second pump chamber. With this arrangement the control of the movement of the membranes is carried out in such a way that it is possible not only to control the frequency and the stroke but that, in addition, there is the possibility of incorporating a pause of controllable duration in the rest position of the membrane pump.
摘要翻译： 双作用膜泵。 泵包括彼此耦合的两个膜，泵送在第一泵室和第二泵室中交替地进行。 利用这种布置，膜的运动的控制以不仅可以控制频率和中风的方式进行，而且还可以将可控持续时间的暂停结合在 膜泵的静止位置。
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84.发明授权VERFAHREN UND VORRICHTUNG ZUR KONTROLLIERTEN DOSIERUNG MINDESTENSEINER FLIESSFÄHIGEN KOMPONENTE 失效方法和设备控制的计量至少一个流动COMPONENT
公开(公告)号：EP0582625B1
公开(公告)日：1996-01-24
申请号：EP92909623.8
申请日：1992-05-04
申请人： MEINZ, Hans Willi
发明人： MEINZ, Hans Willi
IPC分类号： F04B43/02 , F04B43/073
CPC分类号： F04B11/005 , F04B9/115 , F04B43/0736
摘要： In a process for the controlled metering of at least one pourable component, two force pumps (1, 2) driven by a smooth hydraulic current, each with an oscillating force component (9, 10), are used whereby the hydraulic current is divided in a current divider in such a way that one force pump, then both together and then the other identical force pump are driven alternately by this hydraulic current. The volume flow from the force pumps (1, 2) is also smooth and also free of leaks owing to the sealing tests performed on a force pump (1, 2) during the inoperative period. A device for implementing the process is also described.
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公开(公告)号：EP4341558A1
公开(公告)日：2024-03-27
申请号：EP22725555.1
申请日：2022-05-11
发明人： LEVY, Kent , HARMAN, Reid , KOCH, Dale
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86.发明授权
公开(公告)号：EP4124755B1
公开(公告)日：2023-05-10
申请号：EP21187816.0
申请日：2021-07-26
IPC分类号： F04B43/067 , F04B43/073 , F04B49/08 , F04B49/22
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87.发明公开
公开(公告)号：EP4167241A1
公开(公告)日：2023-04-19
申请号：EP22211648.5
申请日：2009-01-23
发明人： McGill, David W. , Dale, James D. , Helmore, Simon C. , Lanigan, Richard J. , Demers, Jason A. , Kamen, Dean
IPC分类号： G16H20/40 , G16H40/63 , A61M1/28 , A61M1/16 , A61M5/168 , A61M39/10 , A61M39/20 , A61M39/28 , F04B43/00 , F04B43/073 , F04B43/08 , F04B53/22 , F04B43/02
摘要： A dialysate delivery set comprising: a fluid handling cassette for use in a peritoneal dialysis system, the cassette comprising: a generally planar body having a first and a second pump chamber formed as a depression in a first side of the body and having a first and a second opening fluidly connected to first and second channels, respectively; a patient line port arranged for connection to a patient line for delivering dialysate to the peritoneal cavity of a patient, the patient line port being in fluid communication with the first and second pump chambers via the second channel; a drain line port arranged for connection to a drain line for draining dialysate from the peritoneal cavity of a patient, the drain line port being in fluid communication with the first and second chambers via the first channel; a heater bag line port arranged for connection to a heater bag line, the heater bag line port in fluid communication with the first and second pump chambers via the first channel; a plurality of solution line spikes being in fluid communication with the first and second pump chambers via the first channel; and a flexible membrane attached to the first side of the body over the first and second pump chambers, a pump chamber portion of the membrane over the first and second pump chambers being arranged to be movable for movement of fluid in the pump chambers; the patient line fluidly connected to the patient line port; the drain line fluidly connected to the drain line port; and a heater bag and the heater bag line fluidly connected to the heater bag line port.
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88.发明公开
公开(公告)号：EP4124755A1
公开(公告)日：2023-02-01
申请号：EP21187816.0
申请日：2021-07-26
IPC分类号： F04B43/067 , F04B43/073 , F04B49/08 , F04B49/22
摘要： A membrane-based piston pump (1) for use in a homogenising apparatus (100), comprising:
- a membrane means (2) separating a product side for a fluid product (P1) from a hydraulic side for a hydraulic fluid (P2);
- a reciprocating piston (3) operatively active on the hydraulic fluid (P2);
- valve means (4) configured to establish a selective fluid communication between the hydraulic side and a tank (10) containing the hydraulic fluid (P2),
wherein said valve means (4) comprise:
- a first valve arrangement (5, 6) that, in a working condition of the piston pump (1), is configured to discharge the hydraulic fluid (P2) having a pressure over a first predefined threshold from the hydraulic side towards the tank (10) and to draw the hydraulic fluid (P2) from the tank (10) to the hydraulic side in response to a pressure in the hydraulic side dropping below a second predefined threshold;
- a second valve arrangement (7, 8) that, in at least one non-working condition of the piston pump (1), is configured to discharge the hydraulic fluid (P2) having a pressure over a third predefined threshold from the hydraulic side towards the tank (10).-
89.发明授权
公开(公告)号：EP3761316B1
公开(公告)日：2022-12-07
申请号：EP20178703.3
申请日：2009-01-23
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公开(公告)号：EP3939649A1
公开(公告)日：2022-01-19
申请号：EP21192356.0
申请日：2017-10-27
IPC分类号： A61M60/00 , A61M1/16 , F16L41/10 , A61M60/851 , A61M1/14 , A61M1/28 , A61M1/34 , A61M1/36 , A61M39/22 , A61M60/113 , F04B43/14 , F04B43/073
摘要： A connection apparatus for sealing to a pathway of a mounting structure includes a body; and a port including a threaded portion extending from the body and a non-threaded portion extending from the threaded portion, the non-threaded portion carrying a gasket, the gasket positioned along the non-threaded portion such that the mounting structure to which the connection apparatus is mounted contacts the gasket prior to the threaded portion engaging a mating threaded portion of the mounting structure, the port providing fluid communciation between the body and the pathway of the mounting structure. The body may be that of a valve that supplies any of air, water or oil as an operating fluid to, for example, inlet and outlet valves and a pump chamber of a medical fluid pump of a medical fluid delivery machine.
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