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1. 发明公开

US20230400019A1 FLUID PUMPING SYSTEMS, DEVICES AND METHODS 审中-公开
公开(公告)号：US20230400019A1
公开(公告)日：2023-12-14
申请号：US18357076
申请日：2023-07-21
申请人： DEKA Products Limited Partnership
发明人： Brian D. Tracey , Larry B. Gray , Jason A. Demers , James D. Dale , N. Christopher Perry , Michael J. Wilt , Scott A. Leonard
IPC分类号： F04B43/073 , F04B43/00 , F04B23/06 , F04B39/12 , F04B53/22 , F04B7/02 , F04B53/16 , F04B39/14 , A61M1/16 , A61M60/851 , A61M60/427 , A61M60/268 , A61M60/847 , A61M60/837 , A61M60/849 , A61M60/113 , A61M60/37 , A61M1/28 , F04B9/109 , F04B13/02 , F04B41/06 , F04B45/02 , F04B45/053 , F04B49/02 , F04B49/22 , F04B53/06 , F04B53/10 , F17D3/00 , A61M1/36
CPC分类号： F04B43/073 , F04B43/0081 , F04B23/06 , F04B43/0736 , F04B39/123 , F04B53/22 , F04B39/12 , F04B7/02 , F04B53/16 , F04B39/14 , A61M1/1605 , A61M1/1639 , A61M1/1664 , A61M1/1666 , A61M60/851 , A61M60/427 , A61M60/268 , A61M60/847 , A61M60/837 , A61M60/849 , A61M60/113 , A61M60/37 , A61M1/16 , A61M1/1656 , A61M1/287 , F04B9/109 , F04B13/02 , F04B41/06 , F04B43/00 , F04B45/02 , F04B45/0536 , F04B49/02 , F04B49/22 , F04B53/06 , F04B53/10 , F17D3/00 , A61M1/362227 , A61M1/36225 , A61M1/362265 , Y10T137/0324 , Y10T137/0379 , Y10T137/2521 , Y10T137/85978 , Y10T137/86139 , A61M60/894
摘要： Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfectants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).

2. 发明授权

US11725645B2 Automated control mechanisms and methods for controlling fluid flow in a hemodialysis apparatus 有权
公开(公告)号：US11725645B2
公开(公告)日：2023-08-15
申请号：US16723408
申请日：2019-12-20
申请人： DEKA Products Limited Partnership
发明人： Michael J. Wilt , Dirk A. van der Merwe , James D. Dale , Brian D. Tracey , Kevin L. Grant , Jason A. Demers , Catharine N. Flynn
IPC分类号： F04B43/073 , A61M1/26 , F04B7/02 , F04B43/00 , F17D3/00 , F04B13/02 , F04B9/109 , F04B49/22 , F04B45/02 , F04B53/10 , A61M60/268 , A61M60/113 , A61M60/531 , A61M60/37 , A61M1/36 , A61M1/16 , A61M1/28 , F04B49/06 , F04B53/16 , F04B53/06 , A61M60/523 , A61M60/43 , A61M60/892 , A61M60/894
CPC分类号： F04B43/0733 , A61M1/16 , A61M1/1605 , A61M1/166 , A61M1/1639 , A61M1/1656 , A61M1/1664 , A61M1/1666 , A61M1/267 , A61M1/287 , A61M1/3638 , A61M1/3672 , A61M60/113 , A61M60/268 , A61M60/37 , A61M60/523 , A61M60/531 , F04B7/02 , F04B7/0216 , F04B9/109 , F04B13/02 , F04B43/00 , F04B45/02 , F04B49/06 , F04B49/22 , F04B53/06 , F04B53/10 , F04B53/16 , F17D3/00 , A61M60/43 , A61M60/892 , A61M60/894 , A61M2205/12 , A61M2205/128 , A61M2205/15 , A61M2205/18 , A61M2205/3317 , A61M2205/3324 , A61M2205/3331 , A61M2205/3337 , A61M2205/3368 , A61M2205/502 , A61M2205/52 , Y10T137/0324 , Y10T137/0379 , Y10T137/2521 , Y10T137/85978 , Y10T137/86139
摘要： Automated control mechanisms and methods for controlling fluid flow in a hemodialysis apparatus are described. The methods can involve a controller receiving information from a pressure sensor in a control chamber of a reciprocating diaphragm-based blood pump and causing the application of a time-varying pressure waveform on a diaphragm of the blood pump during a fill-stroke of the blood pump. The controller can be configured and programmed to monitor a pressure variation in the control chamber measured by the pressure sensor and to compare the measured pressure variation to a pre-determined value. Based on such comparison, the controller can initiate a procedure to pause or stop a dialysate pump of the hemodialysis apparatus if the magnitude of the measured pressure variation deviates from the pre-determined value.

3. 发明授权

US11655695B2 Rodless pump and multi-sealing hydraulic sub artificial lift system 有权
公开(公告)号：US11655695B2
公开(公告)日：2023-05-23
申请号：US16925479
申请日：2020-07-10
申请人： Digital Downhole, Inc.
发明人： Austin J Shields
IPC分类号： E21B43/12 , F04B47/04 , F04B53/12 , F04B53/14 , F04B7/02
CPC分类号： E21B43/129 , F04B7/02 , F04B47/04 , F04B53/12 , F04B53/14
摘要： Oil and gas companies worldwide strive to improve artificial lift efficiencies to minimize environmental footprint and lower operational expense. In order to lower artificial lift costs, the traditional rod pump must be replaced and improved upon. The present invention of the rodless pump and multi-sealing hydraulic sub is an optimized hydraulic pumping system that eliminates rod wear, lowers pump intake pressure, and extends the reserve life of oil and gas wells regardless of casing configuration or depth. Lowering the pump's intake pressure in an oil and gas well by using a positive displacement pump such as the present invention will allow maximum hydrocarbon reserves to be produced with minimal energy consumption to power the pump. The superior surface seals and smaller footprint of the rodless pump eliminate the possibility of surface hydrocarbon leaks, minimizing environmental impact.

4. 发明申请

US20190186483A1 PUMPING CASSETTE 审中-公开
公开(公告)号：US20190186483A1
公开(公告)日：2019-06-20
申请号：US16133279
申请日：2018-09-17
申请人： DEKA Products Limited Partnership
发明人： Jason A. Demers , Michael J. Wilt , Kevin L. Grant , James D. Dale , Brian D. Tacey
IPC分类号： F04B43/06 , F17D3/00 , F04B43/073 , A61M1/10 , A61M1/16 , A61M1/28 , F04B9/109 , F04B13/02 , F04B43/00 , F04B53/10 , F04B53/16 , F04B53/06 , F04B49/22 , F04B45/02 , F04B45/053 , F04B23/06 , F04B41/06 , F04B7/02 , F04B43/02
CPC分类号： F04B43/06 , A61M1/1006 , A61M1/1037 , A61M1/106 , A61M1/1062 , A61M1/1087 , A61M1/1096 , A61M1/16 , A61M1/1605 , A61M1/1639 , A61M1/1656 , A61M1/1664 , A61M1/1666 , A61M1/287 , A61M2205/12 , A61M2205/128 , A61M2205/3317 , A61M2205/3324 , A61M2205/3368 , F04B7/02 , F04B9/109 , F04B13/02 , F04B23/06 , F04B41/06 , F04B43/00 , F04B43/02 , F04B43/073 , F04B43/0733 , F04B43/0736 , F04B45/02 , F04B45/0536 , F04B49/22 , F04B53/06 , F04B53/10 , F04B53/16 , F17D3/00 , Y10T137/0324 , Y10T137/0379 , Y10T137/2521 , Y10T137/85978 , Y10T137/86139
摘要： A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet.

5. 发明授权

US10077629B2 Dump valve assembly and method therefor 有权
公开(公告)号：US10077629B2
公开(公告)日：2018-09-18
申请号：US14811210
申请日：2015-07-28
申请人： Michael Brent Ford
发明人： Michael Brent Ford
IPC分类号： F04B53/10 , E21B34/08 , F16K15/18 , E21B43/12 , F04B7/02 , F04B47/00 , E21B34/00
CPC分类号： E21B34/08 , E21B43/121 , E21B43/127 , E21B2034/002 , F04B7/02 , F04B47/00 , F04B53/1002 , F16K15/183
摘要： A dump valve assembly is disclosed. The dump valve assembly has a seat plug that couples to a southern end of a traveling valve, a standing valve, and a ball. The seat plug has two prongs that engage two corresponding slots within the standing valve and that lift the ball off of the standing valve in order to open the standing valve for pump drainage.

6. 发明申请

US20180066652A1 DUMP VALVE ASSEMBLY WITH SPRING AND METHOD THEREFOR 审中-公开
公开(公告)号：US20180066652A1
公开(公告)日：2018-03-08
申请号：US15808511
申请日：2017-11-09
申请人： Michael Brent Ford
发明人： Michael Brent Ford
IPC分类号： F04B53/10 , E21B34/08 , F04B53/04
CPC分类号： F04B53/10 , E21B34/08 , E21B43/121 , E21B43/127 , E21B2034/002 , F04B7/02 , F04B47/00 , F04B53/04 , F04B53/1002 , F16K15/183
摘要： A dump valve assembly is disclosed. The dump valve assembly has a seat plug, a spring, a standing valve, and a ball. The seat plug is anchored to the standing valve and has two prongs that engage two corresponding slots within the standing valve. By pressing downwardly upon the seat plug, the spring is compressed and the prongs slide downwardly until they engage the ball. By ceasing the downward pressure on the seat plug, the spring relaxes and expands, thereby lifting the ball off of the standing valve in order to open the standing valve for pump drainage.

7. 发明授权

US09901945B2 Spray system pump wash sequence 有权
公开(公告)号：US09901945B2
公开(公告)日：2018-02-27
申请号：US14904655
申请日：2014-07-18
申请人： Graco Minnesota Inc.
发明人： David L. Fehr , Dennis J. Van Keulen
IPC分类号： F04B53/00 , B05B7/12 , B05B7/04 , B05B7/24 , B05B12/08 , B05B12/14 , B05B15/02 , F04B5/02 , F04B7/02 , F04B13/00 , F04B15/02 , F04B17/03 , F04B19/22 , F04B23/06 , F04B39/02 , F04B39/10 , F04B49/10 , F04B49/22 , F04B51/00 , F04B53/10 , F04B53/14 , F04B53/16 , F16N7/32 , B05B9/04
CPC分类号： B05B7/1254 , B05B7/04 , B05B7/0408 , B05B7/24 , B05B7/2486 , B05B7/2497 , B05B9/04 , B05B9/0406 , B05B9/0413 , B05B12/087 , B05B12/1418 , B05B12/149 , B05B15/55 , F04B5/02 , F04B7/02 , F04B13/00 , F04B15/02 , F04B17/03 , F04B19/22 , F04B23/06 , F04B39/0292 , F04B39/10 , F04B49/10 , F04B49/22 , F04B51/00 , F04B53/10 , F04B53/14 , F04B53/16 , F04B2201/0601 , F16N7/32
摘要： A method for a system having a plurality of primary fluid sources and a fluid output with a common pump includes halting pumping of a first fluid, isolating the common pump from the fluid output and the primary fluid sources, connecting an inlet of the common pump to a solvent source and an outlet of the common pump to a waste fluid dump, actuating the common pump first in a pumping mode, then in a recirculation mode, and then in a flush mode, connecting an inlet of the common pump to a second primary fluid source, and an outlet of the common pump to the output line, and starting pumping mode pumping of a second fluid from the second primary fluid source through the output line.

8. 发明申请

US20180045186A1 DUAL-CYLINDER PISTON PUMP 审中-公开
公开(公告)号：US20180045186A1
公开(公告)日：2018-02-15
申请号：US15555797
申请日：2016-03-07
申请人： SCHWING GMBH
发明人： Thorsten Koch , Rudolf Rabsahl , Joseph Schnittker , Manfred Schwarz
IPC分类号： F04B7/02 , F04B1/02 , F04B15/02
CPC分类号： F04B7/02 , F04B1/02 , F04B15/02 , F04B23/06
摘要： The invention relates to a hydraulically actuated dual-cylinder piston pump (1), with a first differential cylinder (22), with a head-end chamber (51) and a rod-end chamber (53), which actuates a first delivery piston (4) via a first piston rod (6), and also with a second differential cylinder (23), with a head-end chamber (52) and a rod-end chamber (54), which actuates a second delivery piston (5) via a second piston rod (7), and with a switching device (14) which by switching the hydraulic oil flow to the chambers (51, 52, 53, 54) of the differential cylinders (22, 23) establishes a head-end or rod-end operating mode of the dual-cylinder piston pump (1), wherein the switching device (14) is arranged on the bottoms (48, 49) of the head-end chambers (51, 52) of the differential cylinders (22, 23) as a bridge-forming connection between the differential cylinders (22, 23). The invention is distinguished by the fact that the switching device (14) comprises through-passages (28, 29) for the hydraulic oil for actuating the differential cylinders (22, 23), via which the head-end chambers (51, 52) of the differential cylinders (22, 23) are connected to the switching device (14) without hydraulic oil lines. The object of the invention is also a method for operating a hydraulically actuated dual-cylinder piston pump according to the invention.

9. 发明申请

US20180038357A1 PUMPING CASSETTE 审中-公开
公开(公告)号：US20180038357A1
公开(公告)日：2018-02-08
申请号：US15635780
申请日：2017-06-28
申请人： DEKA Products Limited Partnership
发明人： Jason A. Demers , Michael J. Wilt , Kevin L. Grant , James D. Dale , Brian D. Tracey
IPC分类号： F04B7/02 , A61M1/16 , F04B53/10 , F04B53/06 , F04B49/22 , F04B45/02 , F04B43/073 , F04B43/06 , F04B43/02 , F04B43/00 , F04B13/02 , F04B9/109 , F04B53/16 , A61M1/10 , A61M1/28 , F17D3/00
CPC分类号： F04B53/10 , A61M1/1006 , A61M1/1037 , A61M1/106 , A61M1/1062 , A61M1/1087 , A61M1/1096 , A61M1/16 , A61M1/1605 , A61M1/1639 , A61M1/1656 , A61M1/1664 , A61M1/1666 , A61M1/287 , A61M2205/12 , A61M2205/128 , A61M2205/3317 , A61M2205/3324 , A61M2205/3368 , F04B7/02 , F04B9/109 , F04B13/02 , F04B23/06 , F04B41/06 , F04B43/00 , F04B43/02 , F04B43/06 , F04B43/073 , F04B43/0733 , F04B43/0736 , F04B45/02 , F04B45/0536 , F04B49/22 , F04B53/06 , F04B53/16 , F17D3/00 , Y10T137/0324 , Y10T137/0379 , Y10T137/2521 , Y10T137/85978 , Y10T137/86139
摘要： A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet.

10. 发明授权

US09670757B2 Downhole pump flushing system and method of use 有权
公开(公告)号：US09670757B2
公开(公告)日：2017-06-06
申请号：US14618380
申请日：2015-02-10
申请人： Warren Wessel
发明人： Warren Wessel
IPC分类号： E21B43/12 , F04B7/02 , F04B53/04 , F04B47/02
CPC分类号： E21B43/12 , E21B43/126 , F04B7/02 , F04B47/02 , F04B47/022 , F04B53/04
摘要： A downhole pump flushing system has a pump body defining an interior cavity, an inlet end, an outlet end and at least one flushing inlet. A lifting member is positioned within the interior cavity of the pump body for facilitating lifting of wellbore fluid. An injection mandrel in circumferentially engaging relation to an exterior surface of the pump body is provided such that it encompasses the at least one flushing inlet. The injection mandrel has an injection port fluidly connected to a fluid outlet port. The fluid outlet port is in fluid communication with the at least one flushing inlet of the pump body. An injection line is connected to the injection port of the injection mandrel and to a fluid supply. An annular channel is provided between the pump body and the injection mandrel adjacent to the at least one flushing inlet such that fluid is guided into the at least one flushing inlet from the fluid outlet port of the injection mandrel. A first sealing member and a second sealing member are provided in sealing engagement between the pump body and the injection mandrel such that a fluid tight seal is created above and below the at least one flushing inlet.

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