Series Patents (Class 417/205)
  • Patent number: 11859495
    Abstract: A rotary piston and cylinder device (1) comprising: a rotor (2), comprising a rotor surface (2a), a piston (5) which extends from the rotor surface, a stator (4), a rotatable shutter (3), the rotor surface and the stator together defining an annular chamber, and the piston arranged to rotate, through the annular chamber, wherein when the chamber is viewed in axial cross-section, substantially a single surface of the stator in part defines the chamber (100).
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: January 2, 2024
    Assignee: LONTRA LIMITED
    Inventor: Stephen Francis Lindsey
  • Patent number: 11813396
    Abstract: A negative pressure assembly includes a drape, a sealing element, a reactor, and a mechanical pump assembly. The drape covers a dressing site on a patient and seals against the skin upon application of a vacuum while maintaining a negative pressure underneath the drape. When applied to the skin, the sealing element cooperates with the drape to define an enclosed volume covered by the drape and surrounded by the sealing element. The reactor is located with respect to the drape and the sealing element to be in fluid communication with the enclosed volume when the drape is covering the dressing site and is configured to react with and consume a selected gas found in air. The mechanical pump assembly is connectable to the enclosed volume and has a pump chamber in fluid communication with the enclosed volume to draw air from the enclosed volume into the pump chamber.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: November 14, 2023
    Assignee: AATRU MEDICAL, LLC
    Inventors: John Buan, Richard L. Middaugh, Timothy Wojciechowski, Thomas E. Lash
  • Patent number: 11686299
    Abstract: A high and low-pressure integrated air pump includes a single housing including an air inlet and an air outlet. A high-pressure pump is disposed within the housing and in fluid communication with the air inlet, and uses a first outlet passage to discharge to the air outlet. A low-pressure pump is also disposed within the housing and in fluid communication with the air inlet, and uses a second outlet passage to discharge to the air outlet.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: June 27, 2023
    Assignee: Intex Marketing Ltd.
    Inventors: Zhi Xiong Huang, Ying Biao Zhang, Zheng Wen Lin
  • Patent number: 11602586
    Abstract: Systems and methods for monitoring for an occlusion in an aspiration line during an ophthalmic surgical procedure. An ophthalmic surgical system may include a first aspiration pump located in a handpiece, a second aspiration pump located away from the handpiece such as in a console, and a pressure sensor located between the first aspiration pump and the second aspiration pump. The pressure sensor is adapted to monitor for an occlusion in the aspiration line upstream of the first aspiration pump. The second aspiration pump may be operated at the same flow rate as the first aspiration pump and/or to maintain a constant pressure between the second aspiration pump and the first aspiration pump. Systems and methods as disclosed allow for a handpiece pump located close to the working tip while providing reliable occlusion detection with a pressure sensor located away from the handpiece.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: March 14, 2023
    Assignee: Alcon Inc.
    Inventors: John Morgan Bourne, Raphael Gordon, Gary P. Sorensen
  • Patent number: 11512695
    Abstract: A pump includes a casing defining an interior volume. The pump casing includes at least one balancing plate that can be part of a wall of the pump casing with each balancing plate including a protruding portion having two recesses. Each recess is configured to accept one end of a fluid driver. The balancing plate aligns the fluid displacement members with respect to each other such that the fluid displacement members can pump the fluid when rotated. The balancing plates can include cooling grooves connecting the respective recesses. The cooling grooves ensure that some of the liquid being transferred in the internal volume is directed to bearings disposed in the recesses as the fluid drivers rotate.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: November 29, 2022
    Assignee: PROJECT PHOENIX, LLC
    Inventor: Thomas Afshari
  • Patent number: 11486372
    Abstract: The present invention relates to a rotary barrel pump where the pivot connection between barrel (6) and casing (15) is provided by the distinct guide and centering means.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: November 1, 2022
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Jean Tricard, Julien Trost, Philippe Pagnier
  • Patent number: 11353023
    Abstract: Disclosed is a pump system for a semiconductor chamber includes a housing having a front chamber and a rear chamber, a roots-type rotor provided to the front chamber of the housing, a screw-type rotor provided to the rear chamber, a shaft member coupled through the roots-type rotor and the screw-type rotor, and a driving motor provided to the outside of the housing in such a way as to be axially connected to the shaft member to provide power for driving the rotors. A fluid pipe is provided to the outside of the housing to connect the front chamber and the rear chamber. The fluid pipe is provided with a heater and/or a cooler to heat or cool the fluid flowing through the fluid pipe.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: June 7, 2022
    Assignee: PLAN CO., LTD
    Inventor: In Cheol Lee
  • Patent number: 11015498
    Abstract: Flow control devices herein have a housing defining a plurality of parallel conduits. The first conduit has a normally closed check valve defined to open under a first preselected pressure differential controlling flow through the first conduit in a first direction of flow. The second conduit has a normally neutral check valve defined to open under a second preselected pressure differential in a second direction of flow that is opposite the first direction of flow. The third conduit defines a restriction profile, i.e., has a restrictor, having a third preselected pressure differential. The flow control devices are included as part of an engine system, more specifically a crankcase ventilation breach detection system.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: May 25, 2021
    Assignee: Dayco IP Holdings, LLC
    Inventors: Scott E. Martin, Matthew C. Gilmer, David E. Fletcher, Mitchell Emond, Chester E. Duffield, III, David Snow, Joseph Dennis
  • Patent number: 10995751
    Abstract: A high speed, rotary lobe gear pump assembly is provided which combines a positive displacement lobe gear pump having wipers with a centrifugal pump utilizing an impeller. The centrifugal pump feeds high pressure fluid flow directly into the lobe gear pump allowing the gear pump to rotate at high speeds without cavitation. The high speed capability of the pump assembly allows the lobe gear pump to operate without speed reduction gearing for the motor shaft.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 4, 2021
    Assignee: PMC LIQUIFLO EQUIPMENT CO., INC.
    Inventor: Yu-Sen J. Chu
  • Patent number: 10219940
    Abstract: Methods and systems for automatically pulsing different aspiration levels to an ocular probe are disclosed. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level, and applied to the probe in a pulsed manner.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: March 5, 2019
    Assignee: JOHNSON & JOHNSON SURGICAL VISION, INC.
    Inventors: Rob Raney, Michael J. Claus, James Gerg, Wayne S. Wong, David A. King, James W. Staggs, Fred Lee
  • Patent number: 10115608
    Abstract: A gas expansion module for use with semiconductor wafer loadlocks and other regulated-pressure components of semiconductor processing tools is provided. The gas expansion module may be barometrically isolated from the loadlock or other component and pumped down to a vacuum condition while the loadlock is performing operations at a higher pressure, such as ambient atmospheric conditions. After an initial pump-down of the loadlock is performed, the gas expansion module may be fluidly joined to the loadlock volume and the gases within each allowed to reach equilibrium. A further pump-down of the combined volume may be used to bring the loadlock pressure to a desired vacuum condition.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: October 30, 2018
    Assignee: Novellus Systems, Inc.
    Inventors: Edmund B. Minshall, Victor F. Morris, Ram Charan, Ronald A. Powell, Mukul Khosla
  • Patent number: 10082134
    Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: September 25, 2018
    Assignee: Edwards Limited
    Inventors: Ian David Stones, Malcolm William Gray, Iain David Port
  • Patent number: 10047747
    Abstract: The invention relates to an assembly comprising a vacuum pump and a chamber, wherein a suction tract extends between the chamber and the vacuum pump. The vacuum pump is a liquid ring machine. According to the invention, a liquid outlet is arranged in the suction tract in order to add liquid to gas sucked in from the chamber. The invention further relates to a method for evacuating a chamber filled with vapor. According to the invention, the vapor is condensed by introducing additional liquid into the suction tract, thus by co-condensation. By supplying liquid selectively only when liquid is required for the condensation of the vapor, water is saved.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: August 14, 2018
    Assignee: Sterling Industry Consult GmbH
    Inventors: Heiner Kösters, Matthias Tamm, Daniel Schütze
  • Patent number: 9951861
    Abstract: An automatic transmission uses 6 shift elements applied in combinations of four to establish ten forward speed ratios and a reverse speed ratio. The automatic transmission uses a hydraulic control system to control engagement of the six elements, control engagement of a torque converter bypass clutch, control engagement of a parking pawl, and to provide fluid for a hydrodynamic torque converter and for lubrication. The parking pawl is disengaged in response to engagement of two of the six shift elements and remains disengaged in response to engagement of other shift elements. A single valve controls several different functions associated with the two-pass torque converter. Pressurized fluid is provided by a variable displacement engine driven pump and also by an electric pump. A priority valve reduces lubrication flow when other fluid demands are high as indicated by the pump displacement control circuit.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 24, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Derek Kinch
  • Patent number: 9878075
    Abstract: A surgical hand piece is described that maintains a vacuum pressure within the hand piece at a selected level. A check valve is provided substantially near an inlet of an integrated aspirating pump. The check valve opens to introduce fluid into the hand piece to maintain the vacuum pressure within the hand piece at or above the selected level so as to prevent or substantially reduce post-occlusion flow.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: January 30, 2018
    Assignee: Alcon Research, Ltd.
    Inventors: Glenn Robert Sussman, John Morgan Bourne, Mikhail Boukhny
  • Patent number: 9752590
    Abstract: A multi-pump apparatus includes a first component in a fluid heat transfer system, such as a heat exchanger, the first component including a body portion forming a first interface surface. A pumping component includes a second interface surface. The first and second interface surfaces are planar and combine to define two pump cavities and a planar interface groove supporting a seal ring that extends around the two pump cavities to prevent leakage of fluid from the pump cavities. The pumping component includes a pump impeller in each of the pump cavities and independently-controlled separate motors driving the two pump impellers using an on-board circuit board. One of the first and second components also defines a fluid inlet to and a fluid outlet from each of the pump cavities. Related methods are also defined.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: September 5, 2017
    Assignee: GHSP, Inc.
    Inventor: Ryan Rosinski
  • Patent number: 9726176
    Abstract: In order to prevent excessive motor loading or system overheating due to the accumulation of particulate or dust, from SACVD type CVD processes, in the running clearances of the vacuum pump a vacuum pumping arrangement is provided having a plurality of vacuum pumping stages and comprising a first pump inlet through which process fluid from the vacuum chamber can enter the pump and pass through each of the pumping sections towards a pump outlet, and a second pump inlet through which process fluid can enter the pump and pass through only one or more pumping stages downstream of the most upstream pumping stage, wherein the apparatus configured to conveying process fluid from the vacuum chamber to the first pump inlet for pumping during the second processing step and conveying process fluid from the vacuum chamber to the second pump inlet for pumping during the first processing step.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 8, 2017
    Assignee: Edwards Limited
    Inventor: Ingo Stephen Graham
  • Patent number: 9566188
    Abstract: Methods and apparatuses for automatically switching different aspiration levels to an ocular probe are disclosed herein. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level. Control feed back of the pumps may be varied according to set thresholds.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: February 14, 2017
    Assignee: Abbott Medical Optics Inc.
    Inventors: Rob Raney, Michael J. Claus, James Gerg, Wayne S. Wong, David A. King, James W. Staggs, Fred Lee
  • Patent number: 9534458
    Abstract: Drilling mud is lifted subsea to a drilling vessel with a mud pump having an internal bladder. Applying pressurized water to one side of the bladder urges it against a quantity of the mud to impart a lifting force onto the mud. Mud flow to and from the pump is controlled by valves driven by actuators. The actuators include a piston in a cylinder, a stem that connects the piston to a valve member, and ports for supplying fluid to opposing ends of the piston for selectively reciprocating the piston. Cavities are strategically location in the cylinder for absorbing vibrational forces generated when the piston reaches an end of its stroke.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 3, 2017
    Assignee: Hydril USA Distribution LLC
    Inventors: Ahmet Duman, Michael Denk, Devon Daniel
  • Patent number: 9439600
    Abstract: Some embodiments of a system or method for treating heart tissue can include a catheter device that provides a user with the ability to perform a number of heart treatment tasks (before, during, and after a cardiac surgery or a percutaneous coronary intervention). In particular embodiments, the catheter device can be used to (i) precondition heart muscle tissue before the heart is isolated from the circulatory system, (ii) deliver cardioplegia into the coronary sinus during the cardiac surgery when the heart is isolated from the circulatory system, and (iii) control the blood flow through the heart after the heart is reconnected with the circulatory system. In some embodiments, the catheter device can perform some or all of: (i) intermittently occluding the coronary sinus, (ii) delivering a treatment fluid into the coronary sinus, and (iii) monitoring a flow rate of blood passing from the coronary sinus to the right atrium.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: September 13, 2016
    Assignee: Miracor Medical Systems GmbH
    Inventor: Werner Mohl
  • Patent number: 9162209
    Abstract: A substrate processing system includes one or more processing chambers defining N reaction volumes. N-1 first valves are arranged between the N reaction volumes. A controller communicates with the N-1 first valves and is configured to pressurize a first one of the N reaction volumes with precursor gas to a first target pressure, wait a first predetermined soak period, evacuate a second one of the N reaction volumes to a second target pressure that is lower than the first target pressure, and open one of the N-1 first valves between the first one of the N reaction volumes and a second one of the N reaction volumes.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 20, 2015
    Assignee: Novellus Systems, Inc.
    Inventor: Karl Leeser
  • Patent number: 8887760
    Abstract: A system for delivering frac water at high pressure is provided, including a first pump positionable within a tank, the first pump configured to receive water from within the tank and output the water at pressure to a first pressure tank; a second pump positionable above the first pressure tank, the second pump configured to receive water from the first pressure tank and output the water at pressure to a second pressure tank; and a third pump positionable above the second pressure tank, the third pump configured to receive water from the second pressure tank and output pressurized water to a discharge piping, the discharge piping leading said pressurized water over a wall of said tank.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: November 18, 2014
    Assignee: Flo-Dynamics, Inc.
    Inventor: David J. Elliott
  • Publication number: 20140294605
    Abstract: A system for maintaining a high vacuum in a vacuum enclosure such as cryostat, for example, is described. The system includes a high-vacuum pump having an input that is connected to the cryostat and an output. A vacuum vessel is connected to the output of the high-vacuum pump. A second vacuum pump is connectable to the vacuum vessel. The system is operated such that the high-vacuum pump maintains the cryostat at a high vacuum and the second vacuum pump is periodically operated to maintain the pressure of the vacuum vessel below a threshold pressure. The second vacuum pump may be either permanently connected to, or removable from, the vacuum vessel. The vacuum vessel acts to maintain the output of the high-vacuum pump within a suitable pressure range. This removes the need for the output of the high-vacuum pump to be connected to a continuously operating, second-stage vacuum pump.
    Type: Application
    Filed: November 24, 2011
    Publication date: October 2, 2014
    Applicant: GE ENERGY POWER CONVERSION TECHNOLOGY LTD.
    Inventors: Martin Richard Ingles, Rubenf Fair, JOSEPH Eugene
  • Patent number: 8784072
    Abstract: An apparatus is provided for compressing a loose solid feedstock. The apparatus includes a two stage compressor. The first compression stage is a screw compressor. The second compressor stage is a reciprocating compressor. The reciprocating compressor operates co-axially with, and receives its feed from, the screw compressor. A choke cone maintains pressure in the outfeed from the compressor stages. The reciprocating compressor, the screw compressor, and the choke cone are all adjustable in real time to control the compression of the feedstock according to a pre-programmed schedule that need not have equal compression and retraction strokes. The operation of the screw compressor may be advanced or eased off depending on the motion of the reciprocating compressor. The operation of the choke cone may be actively controlled to obtain a coordination with the compressor stages.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: July 22, 2014
    Assignee: Mascoma Canada Inc.
    Inventor: Murray J. Burke
  • Patent number: 8726981
    Abstract: A tandem progressive cavity pump system lifts well fluids from a production zone to a well surface. The system provides a first pump and a second pump. The system positions the first pump at the production elevation within the well, and the second pump at an intermediate elevation within the well. The system then connects a discharge of the first pump to an intake of the second pump. The system is then operated so that the first pump lifts well fluids from the production zone to the intermediate zone, depositing the well fluids in the intake of the second pump. The second pump then lifts the well fluids from the intermediate zone to the surface of the well.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: May 20, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Douglas W. Berry
  • Patent number: 8708676
    Abstract: A variable output assembly including a hydraulic pump disposed on a pump running surface located on a center section, end cap or other hydraulic mounting member. The pump may be a gerotor or other rotatable pump body. A support member is disposed between the pump running surface and the pump and includes a pump support surface having openings to permit fluid communication between the support member and the pump running surface. The support member is movable between neutral and a plurality of positions corresponding to forward and reverse directions of the output. In forward and reverse positions, the support member permits fluid communication between the pump and a first porting system, and in the neutral position the support member permits fluid communication between the pump and a sump through the support surface openings and a second porting system.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: April 29, 2014
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Nathan W. Bonny
  • Publication number: 20140023525
    Abstract: A turbomachine fuel circuit including: a low pressure pump; a high pressure pump; a low pressure conduit connecting the low pressure pump to the high pressure pump; a high pressure conduit supplied by the high pressure pump, in which a component is arranged; a mechanism for testing operation of the component; a check valve capable of closing off a segment of the conduit when the pressure in the low pressure conduit is less than a predetermined threshold value; and the testing mechanism is capable of detecting that the check valve at least partly closes off the segment.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 23, 2014
    Applicant: Snecma
    Inventors: Nicolas Potel, NIcolas Alain Bader
  • Publication number: 20130216401
    Abstract: The purpose of the present invention is to provide a small, light coolant-pump device equipped with a filter, said coolant-pump device not requiring regular maintenance. The present invention is provided with: a positive-displacement pump (9); a cyclone filter (12) provided on the intake side of the positive-displacement pump; and a non-positive-displacement pump (40) provided on the intake side of the cyclone filter (12). The cyclone filter (12) contains a primary cyclone (20) and a secondary cyclone (30) each provided with a mechanism (outlet (20c and 30c)) through which separated foreign substances (cutting debris and the like) are expelled. The present invention is set such that the discharge rate of the non-positive-displacement pump (40) is higher than the discharge rate of the positive-displacement pump (9). The positive-displacement pump (9), cyclone filter (12), and non-positive-displacement pump (40) are connected in a vertical straight line.
    Type: Application
    Filed: March 4, 2011
    Publication date: August 22, 2013
    Inventor: Yuji Kawano
  • Patent number: 8506260
    Abstract: A compressor system includes a compressor for supplying compressed air to a commercial vehicle that has an engine with a turbocharger. Air that is pre-compressed by the turbocharger can be sucked in by the compressor via a first air supply pipe. Ambient air that is not pre-compressed can be sucked in by the compressor via a second air supply pipe. A method operates the compressor system including the compressor for supplying the compressed air to the commercial vehicle that has the engine with the turbocharger accordingly.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: August 13, 2013
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Joerg Mellar
  • Publication number: 20130192679
    Abstract: A fuel system for an auxiliary power unit includes a mechanical fuel pump, an electric fuel pump, and a controller. The mechanical fuel pump provides fuel flow to the auxiliary power unit and has an output dependent upon an operational speed of the auxiliary power unit. The electric fuel pump is located in flow series with the mechanical fuel pump. The controller causes the electric fuel pump to circulate and thereby warm fuel prior to start up of the auxiliary power unit.
    Type: Application
    Filed: July 5, 2012
    Publication date: August 1, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: David Lloyd Ripley, Behzad Hagshenas
  • Patent number: 8496050
    Abstract: Arrangement for the lifting of hydrocarbons in oil field wells, comprising a lifting assembly formed by a fluid collecting hose and a fluid suction tube within the well casing. The suction tube extends along the collecting hose, which has an open upper end, through which passes the upper section of the suction tube, which has an end attached to the pulling cable of the “collecting hose/suction tube” assembly.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: July 30, 2013
    Assignee: Optimol Technologies
    Inventor: Juan Carlos Marie Arlandis
  • Patent number: 8449264
    Abstract: A method for delivering a fluid using a centrifugal pump (11). Machines (1, 6) and/or apparatus (3, 8), which influence the pressure and/or the temperature of the fluid, are disposed upstream of the centrifugal pump (11). At the inlet to the centrifugal pump (11), the fluid is regulated to achieve a specific entry state. According to the invention, the entry state of the fluid is regulated by using the machines (1, 6) or apparatus (3, 8) such that, in the centrifugal pump (11), the fluid only takes on states in which the compressibility factor of the fluid has already reached or exceeded the minimum thereof.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 28, 2013
    Assignee: KSB Aktiengesellschaft
    Inventor: Gerhard Schwarz
  • Patent number: 8348635
    Abstract: The variable displacement gear pump for a loading system in an industrial vehicle has main and sub gear pump portions, suction, discharge and bypass passages, and check and opening valves. The main gear pump portion has main drive and driven gears, and has suction and discharge side spaces. The sub gear pump portion has sub drive and driven gears, and has suction and discharge side spaces. The bypass passage returns hydraulic fluid in the discharge-side space of the sub gear pump portion to the suction passage. The check valve prevents hydraulic fluid in the discharge-side space of the main gear pump portion from flowing to that of the sub gear pump portion. The opening valve is used for opening and closing the bypass passage, and closes the bypass passage due to a pressure in a discharge conduit of the loading system increased by the load applied to the loading system.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 8, 2013
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Katsumi Yamashita, Shigeru Suzuki, Hironao Yokoi, Toshiro Fujii
  • Publication number: 20120305263
    Abstract: A tandem progressive cavity pump system lifts well fluids from a production zone to a well surface. The system provides a first pump and a second pump. The system positions the first pump at the production elevation within the well, and the second pump at an intermediate elevation within the well. The system then connects a discharge of the first pump to an intake of the second pump. The system is then operated so that the first pump lifts well fluids from the production zone to the intermediate zone, depositing the well fluids in the intake of the second pump. The second pump then lifts the well fluids from the intermediate zone to the surface of the well.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Douglas W. Berry
  • Patent number: 8316664
    Abstract: A fluid machine (10) includes a closed casing (11) in which an oil reservoir (16) for holding oil is formed in a bottom part.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 27, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Hasegawa, Masaru Matsui, Takeshi Ogata, Shingo Oyagi, Masanobu Wada
  • Patent number: 8297311
    Abstract: Apparatus for establishing and controlling a low pressure gas mixture in a vacuum enclosure (8) comprises at least one secondary pump (9) of the molecular, turbomolecular, or hybrid type, followed by at least one primary pump (10), with first control and adjustment means (22) such as a regulation valve (24) for controlling and adjusting the total gas pressure of the mixture of gases in the vacuum enclosure (8) as a function of a total pressure setpoint (27). The apparatus further comprises second control and adjustment means (28) such as a second regulation valve (29a) downstream from the secondary pump (9). The second regulation valve (29a) is controlled as a function of a delivery pressure setpoint (32) to modify the delivery pressure of the secondary pump (9) and thus to adapt its pumping capacity in selective manner.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: October 30, 2012
    Assignee: Alcatel
    Inventors: Jean-Pierre Desbiolles, Michel Puech
  • Patent number: 8287250
    Abstract: A multistage vacuum pump unit can save a power requirement and prevent the gas discharged outside of the unit from flowing-back inside the pump unit. A plurality of vacuum pumps are connected in series to form the multistage vacuum pump unit. A suction inlet of a first stage vacuum pump thereof is connected to a to-be-vacuumized container so that the space inside of the container becomes under a high vacuum condition. In an operating method, part of the gas discharged into a first intermediate passage from the first stage vacuum pump is branched during a low vacuum operation, and discharged toward an air atmosphere through a low conductance line provided with check valves that prevent the branched gas from flowing back.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: October 16, 2012
    Assignee: Anest Iwata Corporation
    Inventor: Shiro Tanigawa
  • Patent number: 8251678
    Abstract: The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacuum side. The booster pump (16) and the main pump (15) are coupled in series. The booster pump (16) has a higher pumping speed than that of the main pump (15). Each of the main pump (15) and the booster pump (16) includes a pair of pump rotors (52a and 52b), a casing (50) having an inlet port and an outlet port, and a pair of magnet rotors (54 and 54) rotatable with the pair of pump rotors.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: August 28, 2012
    Assignee: Ebara Corporation
    Inventors: Takashi Hozumi, Nobuhito Miyashita, Takanori Inada, Kozo Matake, Yoshinori Ojima, Susumu Miyake, Katsuaki Usui
  • Patent number: 8245531
    Abstract: A fluid machine (10) includes: a closed casing (11) having an oil reservoir (16) in its bottom portion; a main compression mechanism (3) supplied with oil contained in an upper portion (16a) of the oil reservoir; a rotation motor (8); a main compression mechanism side shaft (38) for coupling the main compression mechanism (3) and the rotation motor (8); a mechanical power recovery mechanism (5) disposed below the upper portion (16a) and recovering mechanical power from a working fluid; a sub-compression mechanism (2) disposed below the upper portion (16a); a mechanical power recovery shaft (16) for coupling the mechanical power recovery mechanism (5) and the sub-compression mechanism (2); and a heat-insulating structure (80) located between the upper portion (16a) and the mechanical power recovery mechanism (5) and restricting flow of oil between the upper portion (16a) of the oil reservoir (16) and a lower portion (16b) of the oil reservoir in which the mechanical power recovery mechanism (5) is provided.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 21, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasufumi Takahashi, Hiroshi Hasegawa
  • Patent number: 8235678
    Abstract: A differentially pumped vacuum system includes first, second and third chambers, and a pumping arrangement for evacuating the chambers. The pumping arrangement includes a compound pump having a first inlet connected to an outlet from the first chamber, a second inlet connected to an outlet from the second chamber, a first pumping section and a second pumping section downstream from the first pumping section, the sections being arranged such that fluid entering the compound pump from the first inlet passes through the first and second pumping sections and fluid entering the compound pump from the second inlet passes through, of said sections, only the second section. The pumping arrangement further includes a booster pump having an inlet connected to an outlet from the third chamber, and a backing pump having an inlet connected to the exhaust from the booster pump. Fluid exhaust from the compound pump can be conveyed to either a second booster pump inlet or the backing pump inlet as required.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: August 7, 2012
    Assignee: Edwards Limited
    Inventor: Ian David Stones
  • Patent number: 8231359
    Abstract: A pump unit includes a main pump (4) and a charge pump (5), the pump capacity of which is adjustable via an adjusting element. To adjust the pump capacity of the charge pump (5), an adjusting element of the charge pump (5) is acted upon by an adjusting force which is dependent on the inlet pressure of the main pump (4).
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: July 31, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Merz, Ulrich Gordon Mohn, Rene Constantin Scheerer, Martin Josef Zug
  • Patent number: 8215922
    Abstract: An invention is claimed that enables the pumping of compressible fluids at high pressures when an accurate flow is desired. Two pressure sources, for example pumps plumbed in series, separate thermodynamic work, such as pressurization, at the first pressure source from a volumetric or matter metering function in the second pressure source. One example is a flowstream delivery for a chemical instrumentation system that is manufactured from relatively unsophisticated pumps yet delivers precise flows with low pulsation (<1%) over pressures greater than 100 bar. An advantage of one embodiment allows the economical conversion of typical HPLC systems to state of-the-art supercritical fluid chromatography (SFC) systems with minimal modification to system components.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 10, 2012
    Assignee: Aurora SFC Systems, Inc.
    Inventors: Terry A. Berger, Kimber D. Fogelman, Edwin E. Wikfors, L. Thomson Staats, III, Samuel O. Colgate, Michael A. Casale
  • Patent number: 8210827
    Abstract: A progressing cavity pump system including a feeder assembly including a hopper for receiving material to be pumped therein. The feeder assembly includes an auger housing receiving an auger therein. The auger housing has an underlying portion positioned generally below the hopper and having a radial opening open to the hopper, and an extension portion which is generally radially closed. The extension portion and the underlying portion are of a one-piece, seamless construction. The pump system further includes a progressing cavity pump including a rotor, a stator, an inlet and an outlet. The rotor is rotationally disposed inside the stator such that rotation of the rotor causes material in the pump to be pumped from the inlet toward the outlet, and the inlet is fluidly coupled to the extension portion.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: July 3, 2012
    Assignee: Moyno, Inc.
    Inventors: Dale H. Parrett, Adam C. Downey, Jeffrey Ellinger
  • Publication number: 20120132800
    Abstract: The invention provides a vacuum system (12) comprising a plurality of vacuum chambers (14, 16, 18, 20) connected in series and a vacuum pumping arrangement (10) for differential pumping the chambers. The vacuum pumping arrangement comprises a primary pump (22) having an inlet (23) connected for pumping a first vacuum chamber (14) and an outlet (25) for exhausting at or around atmosphere, a booster pump (24) having an inlet (27) connected for pumping a second vacuum chamber (16) and an outlet (29) connected to the inlet (23) of the primary pump; and a secondary pump (26, 28) having an inlet (31, 33) connected for pumping a third vacuum chamber (18, 20) and an outlet (35, 37) connected to the inlet (27) of the booster pump.
    Type: Application
    Filed: March 30, 2010
    Publication date: May 31, 2012
    Applicant: EDWARDS LIMITED
    Inventor: Ian David Stones
  • Patent number: 8142452
    Abstract: Methods and devices are provided for regulating a hydraulic restriction system including a restriction device. In general, the methods and devices can allow for non-invasive, transient pressure control. The methods and devices can also, in some embodiments, mechanically regulate pressure of the restriction device without using any electrical components that may need to be powered to operate over extended periods of time.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: March 27, 2012
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Jonathan A. Coe, Christopher W. Widenhouse, Thomas E. Adams, Juan S. Ezolino, David Martin
  • Patent number: 8136549
    Abstract: A sluice system for a vacuum coating facility for coating substrates that can be moved through the vacuum coating in a direction of conveyance comprises a prevacuum slice chamber and a transfer chamber adjoining a coating chamber, wherein a fine vacuum can be regulated before the transfer chamber on the input side in the direction of conveyance and after the transfer device on the output side in the direction of conveyance. The prevacuum sluice chamber is directly adjacent to the transfer chamber and the fine vacuum can be regulated in the prevacuum sluice chamber. A high-vacuum pump system can also alternatively and selectively be connected to the prevacuum sluice chamber.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 20, 2012
    Assignee: Von Ardenne Anlagentechnik GmbH
    Inventors: Olaf Gawer, Jens Melcher, Dietmar Schulze, Hans-Christian Hecht
  • Patent number: 8109747
    Abstract: A variable output assembly including a hydraulic pump disposed on a pump running surface located on a center section, end cap or other hydraulic mounting member. The pump may be a gerotor or other rotatable pump body. A support member is disposed between the pump running surface and the pump and includes a pump support surface having openings to permit fluid communication between the support member and the pump running surface. A motor assembly may be hydraulically connected to the pump running surface by a first porting system, and a sump is hydraulically connected to the pump running surface by a second porting system. The support member is movable between neutral and a plurality of positions corresponding to forward and reverse directions of the output.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 7, 2012
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Nathan W. Bonny
  • Publication number: 20110280741
    Abstract: The invention relates to a helico-axial pump (1) for conveying a multiphase mixture (M), which helico-axial pump (1) includes a rotor (2) rotatably journalled about a longitudinal axis (A) in a pump housing (6) and having a first part rotor (21) and a second part rotor (22), wherein the first part rotor (21) and the second part rotor (22) include a compression stage (K, K1E, K1A, K2E K2A) having a helico-axial impeller (3) and a stator (4) for the compression of the multiphase mixture (M). In accordance with the invention, a hydrodynamic stabilization bush (70) having a stabilization surface (700) is provided and formed between the first part rotor (21) and the second part rotor (22) such that a stabilization gap (8) is formed before the stabilization surface (700) so that a hydrodynamic stabilization layer (S) is formed from a stabilization medium (M) in the stabilization gap (8) in the operating state.
    Type: Application
    Filed: April 20, 2011
    Publication date: November 17, 2011
    Applicant: Sulzer Pumpen AG
    Inventors: Paul Meuter, Thomas Welschinger
  • Publication number: 20110223040
    Abstract: A high-pressure pump arrangement (1) which can be especially used for a common rail injection system and has a pump member (2) that contains a low-pressure inlet (8) and a high-pressure outlet (9). A pressurization chamber (12) is provided, within which a plunger (3) is movably mounted and which is connected to the high-pressure outlet via a high-pressure valve (7). Furthermore, a suction chamber (6) that is fitted with a suction valve (5) is provided within the pump member. In addition, an intake duct (13) which extends between the low-pressure inlet and the suction chamber is provided within the pump member. The low-pressure inlet is connected to an electrically regulated pre-supply pump (10) which is permanently operated such that a low pressure is sure to be maintained in the suction chamber (6) of the pump.
    Type: Application
    Filed: October 22, 2009
    Publication date: September 15, 2011
    Inventor: Uwe Lingener
  • Patent number: 7866381
    Abstract: The present invention relates to an arrangement for the lifting of hydrocarbons in oil field wells, comprising a lifting assembly formed by a fluid collecting hose and a fluid suction tube being lowered, filled and raised within a well casing.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: January 11, 2011
    Assignee: Optimoil Technologies
    Inventor: Juan Carlos Marie Arlandis