Pump Magnetically Coupled To Rotary Drive Patents (Class 417/420)
  • Patent number: 12029890
    Abstract: Various aspects of the present disclosure are directed to apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include an impeller, a drive shaft, a driven magnet assembly, a driving magnet assembly, and a flux enhancer.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: July 9, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Travis J. Schauer, Joseph Alan Kronstedt, Benjamin Breidall, Megan Johnson
  • Patent number: 12006873
    Abstract: A fuel supply circuit of an aircraft engine includes a centrifugal pump mechanically coupled with an engine shaft delivering mechanical power. The circuit further includes at least one electromagnetic pump including at least one stator delimiting an annular internal volume in which is present a rotor able to drive a fluid, a plurality of magnets annularly distributed on the rotor and at least a plurality of coils annularly distributed inside the stator face-to-face with the magnets. The rotor is connected to the engine shaft by a one-way clutching element.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: June 11, 2024
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Franck Albert Robert Dupeu, Jean-Marie André Robert Gigon, David Simon Serge Taieb
  • Patent number: 12000402
    Abstract: An electric water pump including a rotor assembly, wherein the rotor assembly includes an iron core body having a central through-hole, a plurality of magnetic plates disposed inside the iron core body, a first plastic coating layer for enclosing the iron core body, and a second plastic coating layer. At least one protruding rib is provided on a top surface and/or a bottom surface of the first plastic coating layer, a recess matching the protruding rib is provided on the second plastic coating layer, and the first plastic coating layer can drive the second plastic coating layer to rotate relative to an axis of the central through-hole of the iron core body.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: June 4, 2024
    Assignee: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    Inventors: Junjie Wang, Xiaowei Zhou
  • Patent number: 11982278
    Abstract: A pump device includes a motor and an impeller which is disposed in a pump chamber provided on one side in a rotation center axial line with respect to the motor and is connected with a rotor of the motor. The rotor is made of resin and includes a seat part which supports an end part on one side of a drive magnet and a cylindrical tube part which is extended from the seat part along the rotation center axial line and is fitted to an inner side of the drive magnet. An outer peripheral face of the cylindrical tube part is provided with a rib extended along the rotation center axial line at a plurality of positions in a circumferential direction, and the drive magnet is press-fitted to the cylindrical tube part so as to contact with the rib from an outer side in a radial direction.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: May 14, 2024
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Takashi Yamamoto, Takehiko Yazawa
  • Patent number: 11826558
    Abstract: A heart pump including a housing forming a cavity including at least one inlet and at least one outlet, an impeller provided within the cavity, the impeller including vanes for urging fluid from the inlet to the outlet upon rotation of the impeller, a drive that rotates the impeller within the cavity, a magnetic bearing including at least one bearing coil that controls an axial position of the impeller within the cavity and a controller. The controller includes an electronic processing device that monitors changes in a bearing indicator in response to a perturbation in blood flow, the bearing indicator being at least partially indicative of operation of the magnetic bearing and controls the drive to thereby selectively change a rotational speed of the impeller at least partially in accordance with changes in the bearing indicator.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: November 28, 2023
    Assignee: BiVACOR Inc.
    Inventors: Nicholas Greatrex, Daniel Timms, Matthias Kleinheyer
  • Patent number: 11739659
    Abstract: A supercharging device having a housing, at least one impeller, and at least one axial bearing having first and second bearing surfaces. The impeller here forms one of the bearing surfaces of the axial bearing.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: August 29, 2023
    Inventor: Sebastian Dauscher
  • Patent number: 11713765
    Abstract: A magnetic pump is provided that includes a magnet can and an impeller that are individually formed, that is capable of easily performing assembling/disassembling, that has high workability during manufacturing or maintenance, and that has high strength in a connection part between the magnet can and the impeller, and to provide a rotary body for the magnetic pump.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: August 1, 2023
    Assignee: World Chemical Co., Ltd.
    Inventors: Wataru Mori, Toru Ebihara, Takashi Yoshida
  • Patent number: 11664700
    Abstract: A canned motor device includes a casing, a rear cover and a leak detector. The rear cover has a main body portion having a cover end wall, and an extended disk portion cooperating with the main body portion to define an accommodating space. The casing and the rear cover cooperatively define an annular groove, a liquid-receiving space and a plurality of guiding grooves therebetween. The leak detector is disposed on one side of the cover end wall opposite to the liquid-receiving space for detecting a change in electrostatic capacity between the leak detector and the liquid-receiving space. The annular groove communicates with the liquid-receiving space, the accommodating space and each of the guiding grooves.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: May 30, 2023
    Assignee: ZI YI ELECTRICAL ENGINEERING CO., LTD.
    Inventor: Ting-Tsai Huang
  • Patent number: 11658535
    Abstract: A device, in particular to an electric motor, for driving a compressor of a gaseous fluid. The device comprises a rotor and a stator disposed such that they extend along a common longitudinal axis. The stator comprises connection leads developed as segments of conductor wires of coils. In a region of at least one end side, oriented in an axial direction, of the stator a cover element is disposed which is developed in the form of an axially oriented hollow cylinder with an inner surface and an outer surface. The cover element herein is with the inner surface in contact on an insulation element disposed on the stator and comprising a cylindrical wall. Between an outer side of the wall of insulation element and the inner surface of the cover element are disposed at least segments of the connection leads of the conductor wires.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: May 23, 2023
    Assignee: Hanon Systems
    Inventors: Bernd Guntermann, David Walisko, Stephan Heinrichs
  • Patent number: 11655043
    Abstract: An electric propulsion system for an aircraft includes a nacelle and an electric machine. The electric machine includes a stator positioned in the nacelle, and a rotor and fan assembly positioned in a primary flow path through the nacelle. The rotor and fan assembly includes a cylindrical fan shroud, a plurality of rotor magnets positioned on an outer surface of the fan shroud, and a fan hub mounted on a central support shaft via one or more bearings. A plurality of fan blades extend between an inner surface of the fan shroud and an outer surface of the fan hub. The rotor magnets may be loaded in compression in a radial direction when the rotor and fan assembly is at rest. The fan blades may be pre-stressed in a radial direction when the rotor and fan assembly is at rest.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: May 23, 2023
    Assignee: DUXION MOTORS, INC.
    Inventors: Sheikh Fazle Rabbi, Rick Ralph Pilgrim, Kyle Reuben Genge, Trevor Forward, Adam Keating, Richard Robert Roper, Bryan Gabin Lobo
  • Patent number: 11614085
    Abstract: A pumping system includes a universal adapter having a back end for attachment to a motor, a forward opening receiving area, an outer magnet assembly rotatable around the receiving area by a motor, and a forward mounting plate surrounding the forward opening receiving area and having mounting features adapted for attachment to the back cover of each of a variety of pump assemblies. The back cover includes mounting features for alignment with the mounting features of the forward mounting plate of the universal adapter.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: March 28, 2023
    Assignee: Rotary Manufacturing, LLC
    Inventors: Jeffrey Scott Brown, Scott Alan McAloon, Seth Thomas
  • Patent number: 11471662
    Abstract: A blood pump can include a pump housing, an impeller, and a hub. The pump housing can be configured to move blood from an inlet to an outlet thereof. The impeller can be housed in the pump housing, have a plurality of blades joined by a central ring, and be radially supported at the central ring by a bearing. The hub can transmit torque to the impeller using a radial magnetic coupling.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 18, 2022
    Assignee: CORVION, INC.
    Inventors: Neil H. Akkerman, Greg S. Aber
  • Patent number: 11398762
    Abstract: An electric pump device is provided. The electric pump device includes a motor, an inverter substrate electrically connected to the motor, a housing for housing the motor and the inverter substrate, and a pump portion driven by power of the motor. The housing includes a motor housing portion for housing the motor and an inverter housing portion for housing the inverter substrate. The motor housing portion has strut portions which extend inside the inverter housing portion and fixed to the inverter substrate.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 26, 2022
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Yoshiyuki Kobayashi, Hitoshi Sakamoto, Tomohiro Sakata, Chisato Sekiguchi
  • Patent number: 11359822
    Abstract: A circulation pump assembly includes a first inlet (84), an outlet (80), an electric drive motor (30) and at least one impeller (68; 100) driven by the drive motor (30). The circulation pump assembly has at least one first flow path (26; 48) positioned in a connection between the first inlet (84) and the outlet (80) for increasing the pressure of a fluid. The circulation pump assembly has a second inlet (86). The at least one impeller (68; 100) has at least one second flow path (28; 50) for increasing the pressure of a fluid, which is positioned in a connection of the second inlet (86) to the outlet (80). A heating system is provided having a circulation pump assembly of this type.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: June 14, 2022
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Thomas Blad, Christian Blad
  • Patent number: 11313371
    Abstract: A pump assembly mounts on a universal adapter having a back end attached to a motor, a receiving area, an outer magnet assembly rotatable around the receiving area by a motor, and a forward mounting plate surrounding the forward receiving area and having mounting features for attachment to the back cover of each of a variety of pump assemblies. The pump assembly includes a casing having an inlet and an outlet. A back cover attached to the casing has mounting features for attachment to the mounting features of the universal adapter. A containment shell includes a cup for positioning in the receiving area. An inner magnet assembly is positioned in the cup is rotatable by magnetic coupling to the outer magnet assembly through the cup. An impeller is rotatable within the casing by the inner magnet assembly to pump fluid from the inlet to the outlet.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 26, 2022
    Assignee: ROTARY MANUFACTURING, LLC
    Inventors: Jeffrey Scott Brown, Scott Alan McAloon, Seth Thomas
  • Patent number: 11313363
    Abstract: A pump assembly has a motor, a gearbox, a rotational to reciprocal action transmission and a diaphragm pump, in which a shaft of the motor, an output shaft of the gearbox, a reciprocal movement axis of the transmission, and a pump shaft of the diaphragm pump are all aligned on a main axis.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: April 26, 2022
    Assignee: Brightwell Dispensers Limited
    Inventor: Andrew Timothy Marshall
  • Patent number: 11306723
    Abstract: An electrical coolant pump, preferably for use as an additional water pump in a vehicle, is characterised in that a radial bearing of the shaft, which is arranged between the pump impeller and the rotor, is provided by means of a radial sintered sliding bearing having a defined porosity lubricated by coolant, and a shaft seal is arranged between the radial sliding bearing and the motor chamber, wherein at least one coolant flow channel with a predetermined depth is provided in the sintered sliding bearing in an axial direction extending from the end of the sintered sliding bearing on the side of the pump chamber.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 19, 2022
    Assignee: NIDEC GPM GMBH
    Inventor: Franz Pawellek
  • Patent number: 11225964
    Abstract: Cylindrical symmetric volumetric machine (1), which machine (1) includes two cooperating rotors (6a, 6b), namely an outer rotor (6a) which is rotatably mounted in the machine (1) and an inner rotor (6b) which is rotatably mounted in the outer rotor (6a), whereby the machine (1) is provided with an electric motor (15) with a motor rotor (16) and a motor stator (17) to drive the outer and inner rotor (6a, 6b), characterised in that the electric motor (15) is mounted around the outer rotor (6a), whereby the motor stator (17) is directly driving the outer rotor (6a), and whereby the electric motor (15) extends along only a part of the length (L) of the outer rotor (6a) and the inner rotor (6b), whereby the motor (15) is located at an end (9b) of the inner rotor (6b) with a smallest diameter (D).
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: January 18, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Erik Paul Fabry, Anton Jan Goethals, Bart Maria M. Raes
  • Patent number: 11219576
    Abstract: A foot spa tub includes a tub basin, a first magnetic drive member rotatably coupled to a drive motor, and a first casing supporting the magnetic drive member. The first casing is disposed against an exterior surface of a sidewall of the basin. A second magnetic drive member is rotatably coupled to a blade. The first and second magnetic drive members are magnetically coupled to each other so that the blade is drivingly coupled to the drive motor. A nozzle houses the second magnetic drive member and the blade. The nozzle is detachably securable to an interior surface of the sidewall by a magnetic attraction force between the first and second magnetic drive members. A method of circulating liquid in a foot tub spa is also provided.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: January 11, 2022
    Assignee: EcoTech, LLC
    Inventors: Justin Lawyer, Patrick Clasen, Timothy Marks, Quy Ton
  • Patent number: 11196318
    Abstract: A canned motor device includes a fixed seat, a motor unit, and a rear cover protector and a leakproof member. The rear cover protector has a main body portion disposed between a case body and a stator of the motor unit and sleeved around a cylindrical portion of the case body, and an extended portion connected to the main body portion, perpendicular to an axis, fluid-tightly abutting against a flange portion of the case body, and having an outer periphery that surrounds the axis and that has an outline larger than that of an annular periphery of the flange portion of the case body. The leakproof member is mounted between the flange portion of the case body and the extended portion of the rear cover protector.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: December 7, 2021
    Assignee: Zi Yi Electrical Engineering Co., LTD
    Inventor: Ting-Tsai Huang
  • Patent number: 11156227
    Abstract: The invention relates to a magnetic rotation component (1) comprising a magnet component (4) that includes a permanent magnet, and a rotation component (5) that has an axis of rotation (r). In order to design the magnetic rotation component (1) in such a way that same has a simple structure and can be mounted easily and cost-effectively, the magnet component (4) and the rotation component (5) are arranged so as to be fixedly connected to each other by means of a flange (6). The magnetic rotation component (1) can be designed as an impeller (2).
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: October 26, 2021
    Assignee: Max Baermann GmbH
    Inventor: Martin Zeitzheim
  • Patent number: 11146127
    Abstract: A motor includes a motor body, a first cover covering at least one part of the motor body on the radial outer side of the motor body, and a second cover covering at least one part of the motor body on one axial side and the radial outer side of the motor body. The first and second covers make contact on the radial outer side of the motor body. The second cover includes first and second parts, the first part is in a disk shape, the second part is located on the radial outer side of at least one part of the first part and includes a wall part and an eave part, the wall part is formed in the axial direction, and the eave part is formed in the radial direction from one axial end of the radial outer side of the wall part.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 12, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Ha Hai Vu, Chien Yu Chen
  • Patent number: 11125244
    Abstract: An electric coolant pump is used as an auxiliary water pump in a vehicle. The pump includes radial mounting of the shaft (4) is provided by means of a coolant-lubricated radial sliding bearing (41) arranged between the pump impeller (2) and the rotor (32). A dry-running electric motor (3) with a radially inner stator (31) and a radially outer rotor (32) is accommodated in a motor chamber (13) separated from the pump chamber (10). A shaft seal (5) is between the radial sliding bearing (41) and the motor chamber (13). The rotor (32) is bell-shaped with an inner surface facing the shaft seal (5) and being fixed to the shaft seal (5) to axially overlap with the shaft (4). The motor chamber (13) has an opening to the atmosphere, which is closed by a liquid-tight pressure equalization membrane (6) that is permeable to vapor.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: September 21, 2021
    Assignee: NIDEC GPM GmbH
    Inventors: Franz Pawellek, Conrad Nickel, Jens Hoffmann, Robin Büsch, Paul Ludwig, Jakob Schnitzer, Silvio Werner
  • Patent number: 11092159
    Abstract: In an electrical coolant pump, preferably for use as an additional water pump in a vehicle, a radial bearing of the shaft is provided by means of a radial slide bearing lubricated with coolant on the separating element which is disposed between the pump impeller and the rotor. A dry-running electric motor has a radially inner stator and a radially outer rotor is accommodated within the motor chamber. A shaft seal is disposed between the radial slide bearing and the motor chamber. The rotor is formed in a cup shape, the inner surface of which faces the shaft seal and is fixed to the shaft in an axially overlapping manner. The motor chamber has an opening to the atmosphere which is closed by a liquid-tight and vapor-permeable pressure equalizing membrane. The separating element is configured as a support flange with a separating portion and an axial projection into the motor chamber, to which the stator is attached.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 17, 2021
    Assignee: NIDEC GPM GmbH
    Inventors: Franz Pawellek, Conrad Nickel, Jens Hoffmann, Robin Büsch, Silvio Werner, Jakob Schnitzer, Paul Ludwig
  • Patent number: 11028851
    Abstract: A fluid pump for conveying a fluid may include an internal rotor rotatable about an axis of rotation relative to an external stator and an impeller connected to the internal rotor in a rotationally fixed manner configured to convey a fluid. The internal rotor may include a rotor receiving sleeve having a base body. The base body may include a receiving chamber configured to receive an anchor unit. The internal rotor may further include a bearing bushing penetrating the rotor receiving sleeve coaxially to the axis of rotation. The bearing bushing may be configured to receive a rotor shaft. The impeller may be directly connected to the rotor receiving sleeve in a rotationally fixed manner.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 8, 2021
    Inventors: Johannes Diekmann, Michael Krappel, Andrej Rul
  • Patent number: 11009026
    Abstract: A pump includes: a stator (4), a rotor (6) slidably and rotatably mounted at least partially in the stator, the rotor comprising a first axial extension (24) having a first diameter (D1) and a second axial extension (26) having a second diameter (D2) greater than the first diameter, a first valve (V1) formed by a first valve seal (18) mounted on the stator around the first axial extension, in conjunction with a first channel (42) in the rotor that is configured to allow liquid communication across the first valve seal when the first valve is in an open position, a second valve (V2) formed by a second valve seal (20) mounted on the stator around the second axial extension, in conjunction with a second channel (44) in the rotor that is configured to allow liquid communication across the second valve seal when the second valve is in an open position; a pump chamber (8) formed between the rotor (6) and stator (4) and between the first valve seal (18) and second valve seal (20); and a pump chamber seal (22) circum
    Type: Grant
    Filed: December 2, 2018
    Date of Patent: May 18, 2021
    Assignee: SENSILE MEDICAL AG
    Inventors: Michael Girschweiler, Alexandre Perrier
  • Patent number: 10954928
    Abstract: A pump including: a stator (4), a rotor (6) slidably and rotatably mounted at least partially in the stator, the rotor comprising a first axial extension (24) having a first diameter (D1) and a second axial extension (26) having a second diameter (D2) greater than the first diameter, a first valve (V1) formed by a first valve seal (18) mounted on the stator around the first axial extension, in conjunction with a first channel (42) in the rotor that is configured to allow liquid communication across the first valve seal when the first valve is in an open position, a second valve (V2) formed by a second valve seal (20) mounted on the stator around the second axial extension, in conjunction with a second channel (44) in the rotor that is configured to allow liquid communication across the second valve seal when the second valve is in an open position, and a pump chamber (8) formed between the rotor and stator and between the first valve seal and second valve seal.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: March 23, 2021
    Assignee: SENSILE MEDICAL AG
    Inventors: Fabian Bürli, Alexandre Perrier, Thomas Wyss
  • Patent number: 10903708
    Abstract: A stator of a brushless motor may include a core; a bobbin including a pair of side surfaces, an inner wall, and an outer wall; a conductor wire wound by being overlapped in plural layers; and a resin layer covering the bobbin and the conductor wire. A profile of the conductor wire may become larger towards an outer circumferential side of the stator. Among portions of the conductor wire arranged along a rotary axis direction of a rotor on at least one side surface included in the pair of side surfaces and located on an innermost circumferential side of the stator in the respective plural layers, a portion of the conductor wire exposed to the resin layer and separated from the inner wall and the outer wall may be tilted from an inner circumferential side of the stator toward the outer circumferential side of the stator.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: January 26, 2021
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Yoshihiko Honda, Akira Hamajima, Ryohei Otaka
  • Patent number: 10876533
    Abstract: A cooling unit comprising a coolant fluid pathway in which there is (a) a centrifugal pump which serves to pump coolant fluid along the pathway when the unit is in use, and (b) a heat exchanger which serves to cool the coolant fluid which is thus pumped along the pathway. The pump has a rotor constituted by a magnetically contactlessly driven impeller which is provided with at last one magnet and which is enclosed within a housing, and stator outside the housing and provided with at least one electromagnet operable to act on the said at least one magnet to rotate the impeller.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 29, 2020
    Assignee: COOLTERA LIMITED
    Inventors: Mark Steven Luxford, David Shon Morgan
  • Patent number: 10873238
    Abstract: A motor includes a stationary portion, a rotating portion that includes a shaft rotating about a vertically extending central axis, and a bearing portion that rotatably supports the shaft with respect to the stationary portion. The stationary portion includes a cylindrical bearing housing portion that holds the bearing portion, a stator that is radially outward of the bearing housing portion, a circuit board that is below the stator, and an annular spacer that is between the stator and the bearing housing portion. The stator includes a stator core that includes an annular core back and multiple teeth that extend radially outward from the core back and are arranged in a circumferential direction, an insulating film that covers a surface of the teeth, extends radially inward from a lower surface of the teeth, and covers a lower outer edge portion of the core back, and a coil provided on the teeth.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 22, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Shinji Takemoto, Keizo Furukawa, Tsuyoshi Hirokawa
  • Patent number: 10865794
    Abstract: An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity and a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The stator assembly is configured to impart a first axial force on the rotor assembly. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. A fluid channeled by the impeller imparts a second axial force on the impeller. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 15, 2020
    Assignees: REGAL BELOIT AUSTRALIA PTY LTD, REGAL BELOIT AMERICA, INC.
    Inventors: Matthew J. Turner, Greg Heins, Mark Thiele, Jason Jon Kreidler
  • Patent number: 10833556
    Abstract: A submersible well pump assembly has a pump driven by an electrical motor. The motor has a number of rotor sections axially separated from each other by radial bearings. Each of the rotor sections has disks stacked together, each of the disks having a central opening and slots circumferentially spaced around the central opening. Metal rods extend through the slots. A center tube extends through the central openings of the disks. The center tube has an outer diameter in an interference fit with the disks. A slot and key arrangement between the inner diameter of the center tube and the motor shaft rotates the motor shaft in unison. The ends of the center tube extend past end rings of the rotor sections and abut with center tubes of adjacent rotor sections.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 10, 2020
    Assignee: Baker Hughes Incorporated
    Inventors: Michael Forsberg, James C. Clingman
  • Patent number: 10738782
    Abstract: A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the canister under catastrophic bearing failure.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 11, 2020
    Assignee: PSG WORLDWIDE, INC.
    Inventors: Rex Warren Beach, Nicholas William Ortega, James Gregory Farley, Christopher Jon Distaso
  • Patent number: 10702641
    Abstract: Blood pumps for ventricular assist devices employ a hollow rotor to impel blood through the blood pump. A blood pump includes a housing having a housing inlet, a housing outlet, and a housing blood flow channel through which the housing inlet and the housing outlet are in fluid communication. A motor stator is disposed around the housing blood flow channel and operable to generate a rotating magnetic field. A hollow rotor is disposed within the housing blood flow channel and rotated via the rotating magnetic field. The hollow rotor has a rotor circumferential wall enclosing a rotor blood flow channel. The hollow rotor has at least one rotor blade extending inwardly from the rotor circumferential wall. The at least one rotor blade is configured to impel blood through the rotor blood flow channel when the hollow rotor is rotated via the rotating magnetic field.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 7, 2020
    Assignee: TC1 LLC
    Inventors: Eric T. Lee, William V. Hodges, Yi-Ren Woo
  • Patent number: 10655631
    Abstract: One embodiment relates to a pump device with an impeller; a pump housing, including a wall surrounding an interior having an inlet and an outlet. The impeller is provided in the interior of the pump housing. The pump housing includes at least one first part-region, at least two further part-regions and at least one third part-region. The at least one first part-region includes, to an extent of at least 60% by weight, based on the total weight of the first part-region, at least one nonmagnetic material, wherein the at least two further part-regions comprise, to an extent of at least 25% by weight, based on the total weight of the further part-region, at least one ferromagnetic material metal, wherein the at least one third part-region comprises a metal content in a range from 40% to 90% by weight, based on the total weight of the third part-region.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: May 19, 2020
    Assignee: Heraeus Deutschland GmbH & Co. KG
    Inventors: Stefan Schibli, Jörg-Martin Gebert, Ulrich Hausch, Oliver Keitel
  • Patent number: 10639602
    Abstract: A molecular mixing system. In one embodiment, the molecular mixing system includes a motorized turntable; a speed controller to control the rotational speed of the motorized turntable; a plurality of magnets arranged in a first Halbach array, the first Halbach array located on the motorized turntable and concentric to the axis of the motorized turntable; and a sample conduit having an input port and an output port and having an outer wall defining a lumen, the sample conduit positioned within and concentric with the first Halbach array.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: May 5, 2020
    Assignee: MEDISIEVE LTD
    Inventors: George Charles Martin Frodsham, Quentin Andrew Pankhurst
  • Patent number: 10568998
    Abstract: A blood pump can include a pump housing, an impeller, and a hub. The pump housing can be configured to move blood from an inlet to an outlet thereof. The impeller can be housed in the pump housing, have a plurality of blades joined by a central ring, and be radially supported at the central ring by a bearing. The hub can transmit torque to the impeller using a radial magnetic coupling.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: February 25, 2020
    Assignee: EVERHEART SYSTEMS INC.
    Inventors: Neil H. Akkerman, Greg S. Aber
  • Patent number: 10422325
    Abstract: A pump draws fluid from a reservoir and drives the fluid downstream to a spray tip where the fluid is applied to a surface. A piston is driven in a reciprocating manner to pump the fluid. A check valve is disposed downstream of the piston to regulate a flow of the fluid downstream from the piston. The pump is initially dry and is primed with fluid prior to operation. To facilitate priming, the piston is dimensioned to impact the ball and unseat a valve member of the check valve during a priming stroke, thereby ejecting any air from the pump through the check valve. With the air ejected from the pump, a vacuum is formed during a suction stroke of the piston, which draws fluid downstream from the reservoir to prime the pump.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 24, 2019
    Assignee: Grace Minnesota Inc.
    Inventor: Mariusz J. Luczak
  • Patent number: 10411571
    Abstract: A magnetic coupling includes an inner rotor (11) and an outer rotor (9) which at least partly surrounds the inner rotor (11). These rotors (11, 9) each are formed of magnetic material (18) and are coupled to one another by way of magnetic forces. The inner rotor (11) and/or the outer rotor (9) contain powdery, magnetizable material (18). The powdery, magnetizable material (18) is magnetized at a side lying opposite the other rotor at several locations distributed over the periphery.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: September 10, 2019
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Flemming Buus Bendixen, Peter Kjeldsteen, Allan Ivo Søgaard
  • Patent number: 10327945
    Abstract: In certain aspects, the invention is directed to magnetic eye shields that comprise a magnet. When worn by a patient, the magnetic eye shields are configured to generate an intraocular magnetic field of sufficient magnitude and direction to move a magnetic therapeutic and/or diagnostic agent positioned inside the eye to target tissue within the eye. Other aspects of the invention pertain to kits which comprise such magnetic eye shields as well as one or more additional components, for example, one or more containers of a magnetic diagnostic and/or or therapeutic agent. Further aspects of the invention pertain to methods of treatment, which comprise intraocularly introducing a magnetic therapeutic and/or diagnostic agent into an eye of a patient and fitting a magnetic eye shield to the head of the patient, wherein the magnetic therapeutic and/or diagnostic agent may be introduced to the patient before or after fitting the magnetic eye shield to the head of the patient.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: June 25, 2019
    Assignee: Emmetrope, Inc.
    Inventors: Jeffrey L. Goldberg, Roger A. Goldberg, Noelia J. Kunzevitzky, Dillon Joseph Rak
  • Patent number: 10294944
    Abstract: A flow thru mechanical bearing system can be used in an implantable rotary blood pump that includes a pump housing. An impeller housed in the pump housing can be radially supported by a row of at least three low friction contact points located on an inside bore of the impeller. The impeller may be axially supported by a second mechanical bearing. The second mechanical bearing may provide at least three axial contact points on the top surfaces of the impeller. The impeller is driven by a magnetic coupling which functions mainly to transmit torque to the impeller. Further, in some cases, the magnetic coupling may restrain axial motion of the impeller.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 21, 2019
    Assignee: EVERHEART SYSTEMS INC.
    Inventors: Greg S. Aber, Allan S. Rhoades
  • Patent number: 10224778
    Abstract: An electric motor vehicle coolant pump includes a pump rotor which pumps a coolant and a drive motor which drives the pump rotor. The drive motor includes a dry motor stator comprising motor coils, a wet motor rotor, and a gap tube configured to separate the dry motor stator and the wet motor rotor from each other in a fluid-tight manner. The gap tube is formed by an integral sheet metal body which, in a gap region between the wet motor rotor and the dry motor stator consists of an austenitic high-grade steel comprising a material thickness of <0.5 mm, a hardness of from 200 to 500, a specific electrical resistance >0.10?×mm2/m, and a relative magnetic permeability<20. The integral sheet metal body forms a sheet metal shell sliding bearing shell of a sliding bearing to radially mount the wet motor rotor.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 5, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Vladimir Popov, Maik Waberski, Ronald Rathke, Jens Teubel
  • Patent number: 10047750
    Abstract: A fluid pump kit is provided. The kit includes a magnetic driven member for coupling with and rotating a propeller, and a magnetic driver for magnetically coupling to and driving the magnetic driven member by a magnetic attraction force establishable between the magnetic driver and the magnetic driven member. A motor of the kit operates the magnetic driver. First and second casings are provided for housing the magnetic driver and the magnetic driven member, respectively. The first and second casings with housed magnetic driver and magnetic driven member, respectively, are detachably securable to opposite sides of a non-magnetic spacer solely by the magnetic attraction force establishable between the magnetic driver and the magnetic driven member sufficient to support the second casing and the housed magnetic driven member in a particular position without the use of mechanical aids.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: August 14, 2018
    Assignee: EcoTech, Inc.
    Inventors: Justin Lawyer, Patrick Clasen, Timothy Marks
  • Patent number: 10048008
    Abstract: An integrated cooling system for actively cooling one or more electronic components in an electronic device such as a computer is provided. The cooling system includes a radiator and a pump integrally attached to the radiator. The pump can include a pump housing having an upper pump housing member attached to the radiator and a lower pump housing member detachably securable to the upper pump housing member. The cooling system includes a flow inlet and a flow outlet for attaching hoses or conduits to the radiator for actively moving a liquid coolant to and from an external cooling block or cooling plate. The external cooling block or cooling plate can be attached to the electronic component to be cooled, such as a computer graphics card, microprocessor or other circuit component.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: August 14, 2018
    Assignee: Rouchon Industries, Inc.
    Inventor: Stephen Mounioloux
  • Patent number: 9927181
    Abstract: An integrated cooling apparatus for actively cooling one or more electronic components in an electronic device such as a computer is provided. The cooling apparatus includes a radiator and a pump integrally mounted on the radiator. The pump can include a pump housing having a first pump housing member attached to the radiator and a second pump housing member detachably securable to the first pump housing member. The apparatus includes a flow inlet and a flow outlet for attaching hoses or conduits to the radiator for actively moving a liquid coolant to and from an external or remote heat exchanger via tubing. An external heat exchanger can be fluidly connected to the integrated cooling apparatus via two or more tubes and thermally attached to the electronic component to be cooled, such as a computer graphics card, microprocessor or other circuit component.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: March 27, 2018
    Inventor: Stephen Mounioloux
  • Patent number: 9926933
    Abstract: An improved bearing and shaft assembly for jet assemblies is disclosed. The improved bearing and shaft assembly includes a bearing assembly having an outer bearing member and an inner bearing member, and a shaft assembly having a shaft member, a shaft protection member, and a locking mechanism. Also, a jet assembly that includes the improved bearing and shaft assembly is disclosed. The jet assembly may be coupled to a motor assembly. The jet assembly further includes the housing that includes at least one inlet aperture and at least one outlet aperture, and an impeller positioned within a cavity of the housing. In addition, a pump comprising a motor assembly and a jet assembly that includes the improved bearing and shaft assembly is disclosed. Furthermore, a method for displacing a fluid using the improved bearing and shaft assembly is disclosed.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: March 27, 2018
    Assignee: Luraco, Inc.
    Inventors: Kevin Le, Thanh Le
  • Patent number: 9841025
    Abstract: A device for the transmission of power using rotating magnetic fields includes a drive shaft with an external magnet, a pump shaft with an internal magnet suited to entrained by the external magnet, a rear tight chamber or containment body for the pump shaft and the internal magnet, the rear body being positioned between the internal magnet and external magnet. The rear body includes at least a glass-shaped casing and one or more probes buried within the thickness of the glass-shaped casing.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: December 12, 2017
    Assignee: M PUMPS PROCESS SRL
    Inventors: Adriano Mischiatti, Antonio Mischiatti, Massimo Mischiatti
  • Patent number: 9768657
    Abstract: A rotating electrical machine includes: a core including an annular yoke portion disposed while being centered around a rotation axis; toothed portions protruding from the yoke portion in a radial direction; and a tooth flange portion circumferentially sticking out from a protruding end of each of the toothed portions while being centered around the rotation axis; and an insulator covering a region from the toothed portion to the tooth flange portion, wherein the insulator includes a tooth cover portion, and a flange cover portion, and a reinforced portion is formed at the boundary between the tooth cover portion and the flange cover portion, and includes a first restricting surface, and a second restricting surface.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: September 19, 2017
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hiroomi Ogawa, Shuji Hattori, Shinya Sakakura
  • Patent number: 9624926
    Abstract: A cooling system for an indwelling heat exchange catheter includes a heat exchange bath that is configured to receive a conduit that carries saline to and from the catheter. A heating/cooling fluid is in the bath and exchanges heat with the saline. The heating/cooling fluid flows through a heat exchanger that includes a refrigerant and two variable speed DC compressor for removing heat from the refrigerant. A gear pump circulates the working fluid to and from the catheter and is removably engaged with a pump support platform.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 18, 2017
    Assignee: Zoll Circulation, Inc.
    Inventors: Wayne A. Noda, Stelica Stelea
  • Patent number: 9551343
    Abstract: A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: January 24, 2017
    Assignee: Ecotech Marine, LLC
    Inventors: Timothy Marks, Patrick Clasen, Justin Lawyer