Diaphragm Type Patents (Class 417/413.1)
  • Patent number: 9976553
    Abstract: An output shaft lubricating structure of a liquid pressurizing pump is provided. A first eccentric portion of an output shaft acts as the maximum stress for load when the liquid is pressurized and works. By the power of the output shaft, a telescopic piston of an oil supply device is directly pushed by a second eccentric portion to draw the lubricating oil in a circular core hole and to pressurize and supply the lubricating oil to an oil supply hole of the output shaft to force an oil outlet hole to drain the lubricating oil to the surface of the first eccentric portion for circulatory supplement, such that the turning of a turning wheel on the first eccentric portion can keep better lubrication for a long time so as to prolong the service life of the output shaft and the turning wheel.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 22, 2018
    Assignee: Jongherya Co., Ltd.
    Inventor: Chien fu Lai
  • Patent number: 9974901
    Abstract: An actuator for an infusion drive mechanism comprises a piston defining a first axis and being movable within a passageway of the infusion drive mechanism to convey at least one infusion medium. The passageway defines a longitudinal axis. An armature is connected to the piston and defines at least one cavity configured for disposal of a biasing member engageable with a surface of the infusion drive mechanism to orient the first axis transverse relative to the longitudinal axis. Systems and methods of use are disclosed.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: May 22, 2018
    Assignee: Medtronic, Inc.
    Inventor: James M. Haase
  • Patent number: 9951769
    Abstract: A diaphragm pump includes a quick discharge valve unit that comprises a vessel including a supply passage, a check valve seat, a delivery passage and a discharge passage, and an elastic member configured to partition an internal space of the vessel into an input-side space connected to the supply passage and an output-side space connected to the delivery passage and the discharge passage. The elastic member includes a check valve body to prevent an inflow of air from the output-side space to the input-side space, and a discharge port valve body configured to close the discharge passage when air is supplied to the input-side space through the supply passage. The vessel includes a connecting path having a sectional area smaller than an area of a section of the supply passage, and configured to release pressurized air in the input-side space to an outside.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: April 24, 2018
    Assignee: OKENSEIKO CO., LTD.
    Inventor: Tadashi Fukami
  • Patent number: 9943421
    Abstract: A vacuum suspension system includes a pump system arranged to be in fluid communication with a prosthetic socket. The pump system includes a pump mechanism having a housing and a membrane situated on the housing such that a fluid chamber is defined between the membrane and the housing. The pump mechanism is movable between an original configuration in which the volume of the fluid chamber is zero or near-zero, and an expanded configuration in which the volume of the fluid chamber is increased.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: April 17, 2018
    Assignee: OSSUR ICELAND EHF
    Inventors: Atli Orn Sverrisson, Larus Gunnsteinsson, Gudfinna Halldorsdottir, Hafsteinn Jonasson, Dadi Granz, Dana Stewart Marlin
  • Patent number: 9920672
    Abstract: A method for heating a device for delivering a liquid additive, the device having at least one pump having at least one pump chamber and at least one movable pump chamber wall, the movable pump chamber wall being displaceable for the delivery of the liquid additive, includes: a) generating a vibration movement by at least one actuator; b) transmitting the vibration movement to the movable pump chamber wall; and c) converting the vibration movement into heat in the movable pump chamber wall.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 20, 2018
    Assignee: Continental Automotive GmbH
    Inventor: Georges Maguin
  • Patent number: 9856870
    Abstract: The invention relates to a pump comprising a dosage head (1) comprising a first part (2) and a second part (7) in which there is provided a hydraulic chamber (8) which is filled with a fluid and a dosage body (14) comprising means for driving a piston (13) of the pump in translation in the hydraulic chamber, a valve (17) for regularization of pressure in the hydraulic chamber, and at least one degassing path (33, 34, 36, 37) which extends in the second part, such that a first end of the path which forms the lowest point of the said path opens out at a junction between the piston and a seal fitted on the piston, and a second end of the path which forms the highest point of the said path opens out into a hollow body of the said valve.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 2, 2018
    Assignee: Milton Roy Europe
    Inventor: Yoann Chevallier
  • Patent number: 9784634
    Abstract: A pressure sensor includes: a pressure sensor element; an adapter integrally attached to the pressure sensor element and defining therein a hole where a pressure of a fluid to be measured is introduced to the pressure sensor element; a fitting member having a housing recess housing the adapter and connectable to a connected member; and a pressing member pressing a valve of the connected member and defining a communicating path through which a flow path where the pressure of the fluid is introduced is in communication with the hole of the adapter. The fitting member is made of a synthetic resin. An O-ring is interposed between a circumferential surface of the adapter and the fitting member. The adapter is a synthetic resin member, and includes a contact portion brought into contact with the adapter and a pressing portion pressing the valve. The pressing member is welded to the fitting member.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 10, 2017
    Assignee: NAGANO KEIKI CO., LTD.
    Inventor: Nobuaki Yamada
  • Patent number: 9752565
    Abstract: A disc pump includes a pump body having a cavity for containing a fluid. The disc pump also includes an actuator adapted to hold an electrostatic charge to cause an oscillatory motion at a drive frequency. The disc pump further includes a conductive plate positioned to face the actuator outside of the cavity and adapted to provide an electric field of reversible polarity, the conductive plate being electrically associated with the actuator to cause the actuator to oscillate at the drive frequency in response to reversing the polarity of the electric field. The disc pump further includes a valve disposed in at least one of a first aperture and a second aperture in the pump body. The oscillation of the actuator at the drive frequency causes fluid flow through the first aperture and the second aperture when in use.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 5, 2017
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Aidan Marcus Tout
  • Patent number: 9617988
    Abstract: Embodiments of the invention provide a system, method and computer program product for reducing the hold-up volume of a pump. More particularly, embodiments of the invention can determine, prior to dispensing a fluid, a position for a diaphragm in a chamber to reduce a hold-up volume at a dispense pump and/or a feed pump. This variable home position of the diaphragm can be determined based on a set of factors affecting a dispense operation. Example factors may include a dispense volume and an error volume. The home position for the diaphragm can be selected such that the volume of the chamber at the dispense pump and/or feed pump contains sufficient fluid to perform the various steps of a dispense cycle while minimizing the hold-up volume. Additionally, the home position of the diaphragm can be selected to optimize the effective range of positive displacement.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: April 11, 2017
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, James Cedrone, George Gonnella, Iraj Gashgaee, Paul Magoon, Timothy J. King
  • Patent number: 9574555
    Abstract: A miniature air pump includes a motor unit, a valve unit and a compression unit. The compression unit is driven by the motor unit to input or output airflows via the valve unit. The compression unit includes an air chamber module and a linkage rod. The air chamber module includes a plurality of compressible chambers and a plurality of resilient connection members, each resilient connection member is located on each compressible chamber. The linkage rod is connected with the motor unit and includes a central rod and multiple sleeves extending from the central rod. Each sleeve has a side cutout. Each resilient connection members engages each sleeve via the side cutout such that the motor unit drives the air chamber module to be compressed or decompressed to input or output airflows via the valve unit. A longitudinal direction of the side cutout is in parallel with the central rod.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: February 21, 2017
    Assignee: XIAMEN KOGE MICRO TECH CO., LTD.
    Inventor: Cheng-Kai Tung
  • Patent number: 9457137
    Abstract: An implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle is disclosed. The device includes at least one pump device having a pump. The pump includes: a piston adapted for reciprocating movement, an operating device for operating the piston, and a heart contacting organ. The movement of the piston assists the pump function of the heart through the heart contacting organ.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: October 4, 2016
    Inventor: Peter Forsell
  • Patent number: 9441743
    Abstract: A bistable fluid valve is characterized by two valve chambers which are arranged adjacent to one another and are closed off with respect to one another by a partition and each have an inlet opening and an outlet opening situated opposite one another, by an S-shaped elastic strip element which extends through both valve chambers, is articulatedly mounted in the region of the partition and can assume two positions in which it sealingly closes off either one or the other outlet opening, and also by an actuation element which is fastened to the strip element and by means of which the strip element can be switched between the two positions. The fluid valve according to the invention comprises only a single movable component of very low mass, which can thus operate in a fast-reacting manner.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 13, 2016
    Assignee: EADS DEUTSCHLAND GMBH
    Inventors: Stefan Storm, Raphael Rammer
  • Patent number: 9435332
    Abstract: An electromagnetic vibrating diaphragm pump is provided which is safe even when a diaphragm of a diaphragm pump is damaged and liquid or flammable gas penetrates an electromagnetic drive. An electromagnet coil container containing electromagnet coils in an airtight manner is further provided inside a casing, preventing fluid which has penetrated into the space outside the electromagnet coil container from penetrating into the space inside the electromagnet coil container. The electromagnet coil container has a passage formed for an oscillator to move in reciprocation and the passage is formed of a partition wall outside the container. The electromagnetic coil container is configured to prevent fluid which has penetrated into the space inside the passage from penetrating into the space inside the electromagnet coil container.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: September 6, 2016
    Assignee: TECHNO TAKATSUKI CO., LTD.
    Inventors: Hideki Ishii, Tsuyoshi Takamichi
  • Patent number: 9422934
    Abstract: A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall. The system includes an actuator operatively associated with the driven end wall to cause an oscillatory motion of the driven end and an isolator is operatively associated with the peripheral portion of the driven end wall to reduce damping of the displacement oscillations. The isolator comprises a flexible material, which in turn includes an RFID tag.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 23, 2016
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Aidan Marcus Tout
  • Patent number: 9360004
    Abstract: A pump comprising a membrane element and a pump housing having a chamber with a bevelled inner wall. The chamber comprises an open end having a third area. The membrane element has a first area, and comprises a central section with a second area which is surrounded by a periphery section. The central section is thicker than the periphery section. Further, the second area of the central section is smaller than the third area of the open end of the chamber and the membrane element is arrangable over said pump housing forming a sealed chamber, whereby the central section of the membrane element is arranged over the open end, and the central section is protruding away from the chamber.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: June 7, 2016
    Assignee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Johan Werner, Joakim Gabrielsson
  • Patent number: 9291284
    Abstract: The invention relates to a micro valve for use in a biosensor, a micro fluidic device, use of such a device, and a micro fluidic element. Biosensors are used for detection of molecules and/or ions, such as protein, drug, DNA, RNA, hormone, glucose, insulin, enzyme, fungus, bacterium, etc., in a biological sample. The sensor can be used for diagnostic application, but for instance also drugs, either therapeutic or abuse, may be detected in for instance blood, urine and saliva.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: March 22, 2016
    Assignee: Biocartis NV
    Inventors: Roel Penterman, Johannes Van Eemeren, Reinhold Wimberger-Friedl, Hendrik Van Amerongen
  • Patent number: 9244465
    Abstract: A metering system for metering a metering fluid includes at least one metering unit, a fluid supply component conveying the metering fluid to the metering unit, and a control module conveying a control fluid to the metering unit. The metering unit includes a first housing part, an exchangeable second housing part and a membrane which is arranged between the housing parts and divides a cavity formed between the housing parts into a pumping chamber and a metering chamber which are separated from each other in fluidic terms. Channels are formed in the first housing part which receive the control fluid and are in flow connection with the control module, and channels are formed in the second housing part which receive the metering fluid and are in flow connection with the fluid supply component.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: January 26, 2016
    Assignee: Buerkert Werke GmbH
    Inventors: Christoph Hettinger, Fabian Mittnacht
  • Patent number: 9194388
    Abstract: A micro-dosing pump includes a pump chamber substrate, a flexible membrane, a fluid line, a valve disk, a magnetizable actuator disk, and a drive unit. The pump chamber substrate has a pump chamber. The flexible membrane is on a first side of the pump chamber substrate and covers the pump chamber in a fluid-tight manner. The fluid line is on a second side of the pump chamber substrate such that fluid can enter and leave the pump chamber. The valve disk, arranged inside the pump chamber, has a fluid through-opening and is configured to close the fluid line by rotating and to open it via the through-opening. The actuator disk is coupled to the valve disk such that rotating the actuator disk rotates the valve disk. The drive unit has a pump plunger configured to move the membrane for suction or ejection of fluid and to rotate the actuator disk.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: November 24, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Franz Laermer, Arne Dannenberg
  • Patent number: 9151285
    Abstract: An air pump structure includes a main body. The main body has a central air chamber. The main body has two side air chambers at two sides thereof. The two side air chambers communicate with the central air chamber through an air inlet unit. The two side air chambers each have a passage at a lower end thereof to communicate with an air outlet. A one-way valve plate is coupled to the air outlet. Two air pump members are to seal the two side air chambers. The air pump members cooperate with a link member and an electromagnetic member to pump air. The present invention has a simple configuration and lowers the cost and is convenient for assembly to enhance its quality and prevent air leakage.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: October 6, 2015
    Assignee: AIR KINETIC TECHNOLOGIES CORP.
    Inventor: Shang-Neng Wu
  • Patent number: 9145882
    Abstract: There is provided a micro pump, including: a channel forming substrate having an inlet and an outlet; an upper substrate connected to the channel forming substrate and having a first hole connected to the inlet and a second hole connected to the outlet; and an adhesive member disposed between the channel forming substrate and the upper substrate to bond the channel forming substrate and the upper substrate and having a first valve opening and closing the inlet and a second valve opening and closing the outlet.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: September 29, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Jin Kim, Bo Sung Ku
  • Patent number: 9144644
    Abstract: An infusion pump, including: a specially programmed microprocessor; a drip chamber for connection to a source of fluid and to an output tubing; a pumping section including a plurality of fingers and a first actuator, controllable using the microprocessor, for sequentially displacing the plurality of finger to compress a first portion of the output tubing to displace fluid from the drip chamber through the output tubing; an inlet valve disposed between the drip chamber and the pumping section and arranged to compress the output tubing to restrict or block flow through the output tubing; and a second actuator, controllable using the microprocessor, for opening or closing the inlet valve independent of the displacement of the plurality of fingers; or for operating the inlet valve to control a rate of flow of fluid from the drip chamber to the portion of the output tubing.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: September 29, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Roger L. Hungerford, Tuan Bui
  • Patent number: 9062688
    Abstract: An apparatus that includes a chamber. The chamber includes an inlet via which process fluid enters the chamber and an outlet via which the process fluid exits the chamber. A diaphragm is fixed in position in the chamber at a periphery of the diaphragm. The diaphragm includes a magnetic fluid therein.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: June 23, 2015
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Shailesh N. Joshi, Jaewook Lee, Ercan Mehmet Dede
  • Patent number: 9057363
    Abstract: The continuous fluid delivery systems includes a fluid pumping device comprising a pump housing comprising a base member with a plurality of inlet ports and at least one outlet port and at least two pairs of opposing pistons movably associated with the housing. Each pair of opposing pistons at least in part defines a respective pumping chamber of the fluid pumping device. The pistons in each pair of opposing pistons may be independently controlled such that any one of the plurality of inlet ports or the at least one outlet port is independently selectable to be in fluid communication with one of the respective pumping chambers. A drive system may be interfaced with the respective pistons to at least reciprocally operate the pistons relative to the base member. The pump housing and the at least two pairs of opposing pistons may comprise a disposable unit.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: June 16, 2015
    Assignee: Bayer Medical Care, Inc.
    Inventors: Christopher D. Capone, Richard A. Seman, Jason L. Bazala
  • Patent number: 9050408
    Abstract: Reciprocating positive-displacement diaphragm pump (1) intended for liquids and for medical use, has a driving part (10) within which there are an electromagnetic actuator (11), incorporating at least one coil (12) and activating a piston (14) of a moving member (15) capable of cyclic linear motion. The pump comprises a pump body (20) within which there is a pre-loaded diaphragm (22) able to undergo a translational movement by elastic deformation from a normal rest position to an adjacent position through the transmission of the work from a piston (14). It incorporates a device (30) for detecting out-of-tolerance variations in the intensity of the supply current by measurements (33), a device (40) for continuously measuring the position of the moving member (15) and devices (30, 45) for processing and analyzing the measurements, which are able to generate at least one malfunctioning alarm signal (35) indicating the detection of at least one malfunction of the pump.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: June 9, 2015
    Inventor: Jean-Denis Rochat
  • Publication number: 20150147195
    Abstract: A channel-less microfluidic pump includes a cartridge including a substrate and an actuatable film layer disposed on the substrate, and a manifold having at least three actuatable void volumes separated by a plurality of wall sections and an actuatable flexible layer disposed on the manifold interfacing the actuatable film layer. In operation, the pump can be in an unactuated state wherein the actuatable film layer is disposed against the surface of the substrate or an actuated state wherein at least a portion of the flexible layer and a corresponding portion of the actuatable film layer are deflected into a corresponding void volume thus forming a fluidic volume between the deflected portion of the actuatable film layer and the surface of the substrate. In the actuated state, there is a fluidic gap between immediately adjacent void volumes formed by a thinned region of the flexible layer at a point of contact with a top surface of a wall section.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Applicant: RHEONIX, INC.
    Inventors: Lincoln C. Young, Peng Zhou
  • Publication number: 20150144821
    Abstract: A rear electromagnet suitable for vibrating pumps and electrical valves. The rear electromagnet for vibrating pump and electrical valves, which is the subject of this invention, has features intended to increase the efficiency of the magnetic system due the particular position of the electromagnet in order to exert a direct attractive force over the ferritic core and to obtain the same performances with less copper, iron and consume less electricity.
    Type: Application
    Filed: November 27, 2014
    Publication date: May 28, 2015
    Applicant: TEYLOR INTELLIGENT PROCESSES SL
    Inventor: ADRIAN ALBERTO TEYLOR
  • Patent number: 9039392
    Abstract: A tire inflation system including a drive mechanism having a rotational axis, a pump cavity positioned a radial distance away from the axis of rotation, and a force translator coupling the rotational axis to the pump cavity. The drive mechanism includes a cam comprising an arcuate bearing surface having a non-uniform curvature, the cam rotatable about the rotational axis, and an eccentric mass couple to the cam that offsets a center of mass of the drive mechanism from the rotational axis. The pump cavity is rotatably coupled to the cam, wherein the pump cavity includes an actuating element and a chamber. The force translator couples the arcuate bearing surface to the actuating element, wherein the force translator includes an axis having an arcuate position fixed to an arcuate position of the pump cavity.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: May 26, 2015
    Assignee: Aperia Technologies, Inc.
    Inventors: Brandon Richardson, Dave Carlberg, Ace Shelander
  • Patent number: 9033683
    Abstract: In a fluid control device, a check valve includes a first valve housing and a first diaphragm. The first diaphragm defines a first valve chamber and a second valve chamber. An exhaust valve includes a second valve housing and a second diaphragm. The second diaphragm defines a third valve chamber and a fourth valve chamber. The check valve is opened and closed by a difference in pressure between the first valve chamber and the second valve chamber. The exhaust valve is opened and closed by a difference in pressure between the third valve chamber and the fourth valve chamber.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 19, 2015
    Assignees: Murata Manufacturing Co., Ltd., Omron Healthcare Co., Ltd.
    Inventors: Yukiharu Kodama, Atsuhiko Hirata, Yoshihiko Sano, Toshihiko Ogura, Yoshiki Doi
  • Patent number: 9033682
    Abstract: A hand pump (16) includes a housing (22) having an inlet (18) and an outlet (26) and an actuating body (32) movably mounted in the housing axially and a membrane (46) with a flexible ring section (48) surrounding the stroke axis (34). During stroke movement, the actuating body (32) is pressed with the membrane (46) against the force of an elastic element (42) from a resting position (I) into the pump housing (22) and into an actuating position, and returned to the resting position (I) by the elastic element (72). Thus, the volume of a pump chamber (20) can be modified.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: May 19, 2015
    Assignee: Mann+Hummel GMBH
    Inventor: Christian Thalmann
  • Patent number: 8992189
    Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 31, 2015
    Assignee: DEKA Products Limited Partnership
    Inventors: Michael J. Wilt, Kevin L. Grant, James D. Dale, Jason A. Demers, Brian D. Tracey
  • Publication number: 20150078934
    Abstract: A diaphragm for a fluid mover, such as a synthetic jet device includes separate, concentric substrate sections. The substrate sections may be joined together by a resilient material at a junction between the sections, and the sections may include intermeshed cantilever tabs. The substrate sections may be joined to resist pressure-induced ballooning or similar deformation, yet allow for relatively large axial deformation.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Applicant: Aavid Thermalloy, LLC
    Inventor: Timothy Swain Lucas
  • Patent number: 8979510
    Abstract: A micropump includes: a fluid suction tube for suctioning fluid; a pumping tube connected to the fluid suction tube and providing a suction force and a discharge force to surroundings while repeatedly being expanded and contracted by an external signal; a deform tube connected to the pumping tube and having an aperture that is deformed by the suction force and the discharge force of the pumping tube; and a fluid discharge tube connected to the deform tube and discharging fluid.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: March 17, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Soo Jai Shin, Hyung Jin Sung
  • Patent number: 8979511
    Abstract: A fluid delivery system includes a first chamber, a second chamber, and a third chamber, a pair of electrodes, a porous dielectric material, an electrokinetic fluid, and a flexible member including a gel between two diaphragms. The pair of electrodes is between the first chamber and the second chamber. The porous dielectric material is between the electrodes. The electrokinetic fluid is configured to flow through the porous dielectric material between the first and second chambers when a voltage is applied across the pair of electrodes. The flexible member fluidically separates the second chamber from the third chamber and is configured to deform into the third chamber when the electrokinetic fluid flows form the first chamber into the second chamber.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: March 17, 2015
    Assignee: Eksigent Technologies, LLC
    Inventors: Deon S. Anex, Kenneth Kei-ho Nip
  • Publication number: 20150069860
    Abstract: An electrodynamic actuator, in particular for a microvalve or a micropump, includes a magnet arrangement for generating a magnetic field and a control element movable relative to the magnet arrangement. The control element includes an energizable air-core coil (22) which is arranged in the magnetic field and firmly coupled to a coil carrier (20) made from a nonmagnetic material.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 12, 2015
    Inventors: Cyril REITER, Maik FUCHS, Johannes DIERKS, Raoul SCHROEDER, Ralf SCHEIBE, Christian HARTMANN
  • Patent number: 8974193
    Abstract: A synthetic jet equipment is provided, including a base, a frame fixed to the base, a first member, a pump diaphragm, a second member, and a valve diaphragm. The pump diaphragm connects the first member to the frame, and the valve diaphragm connects the second member to the frame. The base, the frame, the first member, the pump diaphragm, the second member, and the valve diaphragm define a chamber forming an intake and an outlet. When the first member moves in a first direction, the second member moves in a second direction opposite to the first direction and the external air flows into the chamber through the inlet. When the first member moves in the second direction, the second member moves in the first direction, such that the air is exhausted from the chamber through the outlet.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: March 10, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Chien Li, Chung-De Chen, Pin Chang
  • Publication number: 20150030476
    Abstract: The invention relates to a pump unit that can be driven by an electric motor, in particular for providing vacuum for a pneumatic brake booster, including a pump housing that can be closed by a working-chamber cover and at least one elastic displacement element, wherein a working chamber is bounded between the displacement element and the working-chamber cover and wherein inlet valves and outlet valves and inlet channels and outlet channels associated with the valves are associated with the working chamber. According to the invention, in order to reduce noise emissions, devices for reducing a contact surface between the working-chamber cover and the pump housing are provided.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 29, 2015
    Inventors: Stephan Krebs, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Karlheinz Seitz, Hans-Michael Koppel, Falk Petzold, Rolf Fellinger, Stefan Imhof, Thomas Oeffner, Paul Wiebe, Manfred Rüffer
  • Publication number: 20150030477
    Abstract: A synthetic jet ejector (201) is provided which includes a chassis (203); first (205) and second (207) opposing synthetic jet actuators mounted in the chassis; and a controller (209) which controls the first and second synthetic jet actuators and which is in electrical contact with the first and second synthetic jet actuators by way of flexible circuitry (211, 213).
    Type: Application
    Filed: September 19, 2014
    Publication date: January 29, 2015
    Applicant: NUVENTIX, INC.
    Inventors: Daniel N. Grimm, Andrew Poynot, Randall P. Williams, Stephen P. Darbin, Lee M. Jones, Raghavendran Mahalingam
  • Publication number: 20150023821
    Abstract: A fluid pump comprising one or two cavities which, in use, contains a fluid to be pumped, the chamber or chambers having a substantially cylindrical shape bounded by first and second end walls and a side wall; an actuator which, in use, causes oscillatory motion of the first end wall(s) in a direction substantially perpendicular to the plane of the first end wall(s); and whereby, in use, these axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity; and wherein an isolator forms at least a portion of the first end wall between the actuator and the side wall and includes conductive tracks, wherein electrical connection is made to the actuator via the conductive tracks included within the isolator.
    Type: Application
    Filed: February 11, 2013
    Publication date: January 22, 2015
    Inventors: Andrew Robert Campbell, Justin Rorke Buckland
  • Patent number: 8926293
    Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (13) permits low-noise expulsion of the air from the interior space 22 by deflecting the air. In order to make available a low-noise, cost-reduced motor-pump assembly the eccentrics (9) each have an unbalance weight (25) integrally molded onto the eccentric (9).
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 6, 2015
    Assignee: Continental Teves AG & Co. OHG
    Inventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
  • Patent number: 8845306
    Abstract: A pumping system comprising a membrane pump (1) for pumping a medium into or out of a vessel (6), the membrane pump comprising an actuating member (13) for moving a membrane (3) in a first direction from a first end position to a second end position against the action of a spring (12), the membrane being movable in the opposite direction from the second end position to the first end position under the action of the spring. The pumping system comprises sensing means (14) for generating a measuring value representing the location of said first end position of the membrane (3), and processing means (17) for establishing a pressure value representing the pressure inside a vessel (6) connected to an inlet (5) or outlet (24) of a pump chamber (4), the processing means (17) being adapted to establish said pressure value based on said measuring value.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: September 30, 2014
    Assignee: Xavitech AB
    Inventor: Johan Stenberg
  • Publication number: 20140270728
    Abstract: The invention relates to a domestic appliance, such as a steam iron or a coffee making apparatus. Such appliances comprising a housing, a water reservoir, an actuator, for example, plunger pump and a boiler for providing hot water or steam for an appliance. An input of the plunger pump is connected to the water reservoir, an output of the plunger pump is connected to an inlet of the boiler. In operation, the plunger pump is reciprocating at the mains frequency. The operating plunger pumps introduces vibrations which are transmitted to the housing and radiated by the housing to the environment which cause sounds and noise which are not user friendly.
    Type: Application
    Filed: July 19, 2012
    Publication date: September 18, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Milind Vishwas Date, Kam Weng Choy, Johannes Willem Tack
  • Publication number: 20140271276
    Abstract: A variable stroke length EOD pump system is provided that includes a diaphragm pump and an electromagnetic linear actuator that operates the diaphragm pump. The linear actuator includes two stator halves, and an armature. The armature is supported for linear motion along an axis of and between field poles of the stator halves. Each stator half may also include a drive coil partially surrounded by a magnetically permeable core.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Inventor: LESTER B. ASHE
  • Publication number: 20140271252
    Abstract: A precision pump system having a motor driver for accurately and repeatedly delivering process fluid, (e.g., photo chemicals) using a pumping fluid with minimal process fluid loss to a fabrication process and whereby the motor driver can be easily and quickly replaced without interrupting the fluid flow path. This is accomplished with the use of a process fluid reservoir and a pumping fluid reservoir that are associated with the pump, either integrated with the pump or closely adjacent. In addition, this precision pump system can be remotely monitored, viewed and controlled over the Internet. In addition, trapped process fluid within a downstream filtering block can be recirculated to the process fluid reservoir when trapped gas in the filter is removed. Furthermore, a nitrogen gas source is connected to the process fluid reservoir via a valve in case a need to insert a gas is required.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicant: Integrated Designs, L.P.
    Inventors: John C. Vines, John Laessle
  • Publication number: 20140271275
    Abstract: A variable stroke length EOD pump system is provided that includes a diaphragm pump and an electromagnetic linear actuator that operates the diaphragm pump. The linear actuator includes two stator halves, and an armature. The armature is supported for linear motion along an axis of and between field poles of the stator halves. Each stator half may also include a drive coil partially surrounded by a magnetically permeable core.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Inventor: LESTER B. ASHE
  • Publication number: 20140271274
    Abstract: An electromagnetic vibrating diaphragm pump enabling improvement of working efficiency in fitting center plates to a diaphragm, reduction of production cost and stabilization of performance between products. The disk-like second plate includes the cruciform rising portion having the concave portions, and the second ring rib. The first ring rib is formed at the center of the surface of the disk-like first plate coming into contact with the diaphragm, and a fitting groove provided with convex portions to be press-fitted to the concave portions is formed by this first ring rib. The diaphragm has the protrusions for preventing the diaphragm from being pressed out on the periphery of the through-hole at its center, and the protrusions are engaged with the ring ribs from the circumference of the protrusion.
    Type: Application
    Filed: May 2, 2012
    Publication date: September 18, 2014
    Applicant: TECHNO TAKATSUKI CO., LTD.
    Inventors: Hideki Ishii, Tsuyoshi Takamichi
  • Patent number: 8834136
    Abstract: An undulating diaphragm pump having a propulsion chamber for receiving said diaphragm, wherein the diaphragm has mechanical characteristics that vary from an inlet of the propulsion chamber towards an outlet of the propulsion chamber in such a manner that, when the diaphragm is actuated to deform with a traveling wave that propagates from the inlet towards the outlet of the propulsion chamber in order to propel the fluid, the propagation speed of the wave in the diaphragm in any cross-section relative to the movement of the fluid inside the propulsion chamber is equal to or greater than the mean travel speed of the fluid in said section.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 16, 2014
    Assignee: AMS R&D SAS
    Inventor: Jean-Baptiste Drevet
  • Patent number: 8826646
    Abstract: A fluid delivery device, in particular for delivering exhaust gas posttreatment media, such as a urea-water solution, for an internal combustion engine, includes a movable work wall, in particular a work diaphragm. A work chamber is provided for a fluid that is to be delivered via at least one fluid connection. The work chamber is capable of being increased and decreased in size by means of the movable work wall, the at least one fluid connection, and at least one mechanism for moving the work wall upon an intake stroke and a compression stroke. The at least one mechanism is embodied such that the force for moving the work wall both in the intake stroke and in the compression stroke includes a Lorentz force.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: September 9, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Waletzek, Peter Holek, Ralph Schmidt
  • Patent number: 8821135
    Abstract: The devices and systems are medical fluid treatment therapies. The device and systems are configured and capable of operating based on small volumes of fluids. The devices and systems include a pump configured for small volume of a fluid. The pump may include a first conduit configured for inflow of the fluid; a second conduit configured for outflow of the fluid; a fluid chamber configured to move the fluid through the pump; a diaphragm configured to force the fluid through the fluid chamber by indirectly exerting force on the fluid chamber; and a connector configured to removably attach the pump to a motor.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: September 2, 2014
    Assignees: Emory University, Georgia Tech Research Corporation
    Inventors: Matthew L. Paden, Ajit Yoganathan, Lakshmi Prasad Dasi
  • Patent number: 8821134
    Abstract: A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 2, 2014
    Assignee: The Technology Partnership Plc
    Inventor: Richard Janse Van Rensburg
  • Patent number: RE45376
    Abstract: In one embodiment, a cooling system is disclosed. The cooling system comprises: a cooling channel for receiving a cooling media, a substrate disposed near the cooling channel, and a fluidic jet disposed within the substrate and in fluid communication with the cooling channel. The cooling channel is for thermal communication with a component to be cooled. The cooling channel has a height of less than or equal to about 3 mm and a width of less than or equal to 2 mm. The fluidic jet comprises a cavity defined by a well and a membrane. In one embodiment, a method of cooling an electrical component comprises: passing a cooling media through a cooling channel, drawing the cooling media into one or more of the fluidic jets, expelling the cooling media from the one or more fluidic jets into the cooling channel, and removing thermal energy from the electrical component.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: February 17, 2015
    Assignee: General Electric Company
    Inventors: Mehmet Arik, Todd Garrett Wetzel, Stephen Adam Solovitz