Patents Examined by Christopher S Bobish
  • Patent number: 10495097
    Abstract: A compressor assembly can include a shaft sleeve that includes a bore that extends between a first end and a second end and an outer shoulder; a shaft received by the bore of the shaft sleeve where the shaft includes a compressor end; a compressor wheel disposed on the shaft; and a thrust collar disposed on the shaft and seated between the outer shoulder of the shaft sleeve and the compressor wheel where the thrust collar includes a stem portion and a cap portion that includes a sacrificial portion.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: December 3, 2019
    Assignee: Garrett Transporation I Inc.
    Inventors: Shawn W Merritt, Luca Tabacchi
  • Patent number: 10495087
    Abstract: A compressor and a method of assembling the compressor are provided. The compressor includes: a shell; a motor arranged in the shell, the motor having a stator, a spacer mounted with a first bearing therein, a drive shaft supported by the first bearing and a rotor fixed onto the drive shaft; a low bearing support; a positioning member positioning the second bearing and being connected to the low bearing support; and a second bearing connected to the positioning member and/or the low bearing support and supporting the drive shaft. Furthermore, the positioning member may be removed from or maintained in the compressor after it is assembled. The present disclosure can avoid the adverse effects of the gravity of the rotor and the drive shaft and/or the magnetic force between the rotor and the stator on positioning the bearings and the drive shaft and can improve positioning accuracy and assembling efficiency.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: December 3, 2019
    Assignee: Danfoss (Tianjin) Ltd.
    Inventors: Zhou Xueyou, Ma Haiyun, Wu Zhipeng, Zhang Zhiguo, Meng Zhiqiang
  • Patent number: 10495099
    Abstract: A multistage centrifugal pump (1) has impellers (9) arranged on a common shaft (8), which is rotatably arranged within a pump casing (2-4). One end of the shaft (8) is led out of the casing (2-4) for connection to a drive motor and another shaft end (15) is rotatably mounted in the pump casing (2-4). The shaft end (15) which is mounted within the pump casing (2-4) is subjected to a counter-force which is produced by way of pressure subjection via a conduit connection to a delivery side of the pump. An axial seal (11) is provided on the shaft end (15) arranged within the pump casing (2-4). The rotating part of the axial seal is led on the shaft end and the non-rotating part is led, axially movably, within the pump casing (2-4). A sealing arrangement is provided between the pump casing and the axially movably mounted part.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: December 3, 2019
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Erik Bundesen Svarre, John Frigård Nielsen
  • Patent number: 10473096
    Abstract: A modular pump platform includes a pump head module, a pump motor module, an electronics module and a separable tray. The pump motor module includes a pump motor having a rotary output removably coupled to a crank shaft of the pump head, the pump motor being one of multiple types of pump motors, and the pump motor module being detachably connected to the pump head module. The electronics module includes an electronic control circuit configured to control operation of the pump motor, the electronic control circuit being one of multiple types of electronic control circuits corresponding to the types of pump motors. Each of the pump head module, the pump motor module and the electronics module is detachably connected to the separable tray. At least the pump motor module is interchangeable with another pump motor module comprising a pump motor of another type.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 12, 2019
    Assignee: Agilent Technologies, Inc.
    Inventors: John Calhoun, Vannie Yucong Lu, George Galica, Robert Langellotti, James Pierce
  • Patent number: 10473097
    Abstract: A system and method for controlling a speed of a pumping system includes a controller, a variable frequency drive connected to the controller, a motor connected to the variable frequency drive, a pump connected to the motor, a set of sensors connected to the motor, the pump, and the controller, and an interface connected to the controller. The controller includes a processor and a memory connected to the processor. A motor control process is saved in the memory and executed by the processor that generates a motor control signal to control the speed of the motor and the pump.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: November 12, 2019
    Assignee: TIGERFLOW SYSTEMS, LLC
    Inventors: Ryan Morris, Minh Truong
  • Patent number: 10443592
    Abstract: A fluid delivery system is provided for use with a peristaltic pump, which includes a roller-tube engagement zone and a rotor structure including an array of rollers. The fluid delivery system includes a console to removably receive the peristaltic pump in a mounted position, with the console including a roller positioning system.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: October 15, 2019
    Assignee: Medtronic Xomed, Inc.
    Inventors: Gerould W. Norman, Craig L. Drager, Michael L. Koltz
  • Patent number: 10443554
    Abstract: A fuel injection pump includes a plunger, a plunger barrel which supports the plunger, a body which houses the plunger and the plunger barrel, a plate which covers an opening formed on the body, a control lever turnably attached near the plate, and an adjuster bolt which abuts against the control lever to restrict turn of the control lever and is supported by a stay disposed on the plate.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: October 15, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Masaki Nankou, Ryota Iwano, Isao Takagishi
  • Patent number: 10443362
    Abstract: Systems and methods for detecting and arresting free fall of a mover in a linear motor for an ESP. In one embodiment, the motor of the ESP is initially automatically commutated, but is limited by the back pressure of the fluid being pumped. The drive system of the ESP monitors the speed of the mover in the linear motor and determines whether the speed of the mover exceeds a threshold speed (e.g., by determining whether time differentials between transitions in position sensor signals fall below a threshold value). If the speed of the mover does not exceed the threshold speed, the motor is deemed not to be in free fall. If the speed of the mover exceeds the threshold speed, the motor is considered to be in free fall, so automatic commutation of the motor is disabled and the mover is advanced through its stroke at a predetermined speed.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 15, 2019
    Assignee: Baker Hughes Incorporated
    Inventor: Evan G. Mackay
  • Patent number: 10443603
    Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: October 15, 2019
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
  • Patent number: 10415563
    Abstract: A mechanism for limiting vibration amplitudes in a pumping system includes a plurality of pendulum absorbers coupled with a carrier and each having a pivoting range. The pendulum absorbers each further include a first and a second contact surface that contacts an outer peripheral surface of the carrier at limit stop positions, and each having a shape that is conforming with a shape of the outer peripheral surface. The pumping system may be used for pumping liquid nitrogen.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: September 17, 2019
    Assignee: Caterpillar Inc.
    Inventors: Zachary Robinson, Thomas Brosowske
  • Patent number: 10415564
    Abstract: A valve clack is provided. The valve clack includes: a mounting column (11) having a plurality of air slots (111) for dispersing an airflow at least in a top surface of the mounting column (11); a plurality of blades (12) arranged outside the mounting column (11) in a circumferential direction of the mounting column (11), each blade (12) having a radial inner end connected to the mounting column (11) and elastically swingable with respect to the mounting column (11).
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: September 17, 2019
    Assignee: XIAMEN KOGE MICRO TECH CO., LTD.
    Inventor: Kunlin Zhang
  • Patent number: 10408219
    Abstract: A fuel pump includes a pump cover at one end portion of the housing, a cover end at the other end portion of the housing, a bearing supported by the cover end and rotatably supporting an end portion of the shaft on the cover end-side. The cover end includes a base part that covers the other end portion, a discharge part that is connected to the base part, a bearing accommodating part which is formed such that a cross-section of the bearing accommodating part perpendicular to a rotation axis of the shaft has an annular shape and which includes an accommodating space accommodating the bearing, and a connection part that connects together the base part and the bearing accommodating part. A length of the connection part is shorter than a length of the base part and a length of the bearing accommodating part, in a direction of the rotation axis.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: September 10, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hiromi Sakai, Kiyoshi Nagata, Masaya Ootake
  • Patent number: 10408205
    Abstract: A method and system for determining the pump fillage of a sucker rod pumping system using torque feedback when pumping wellbore fluids from the particular well on which the sucker rod pumping system is installed. During the pump stroke, a microprocessor samples torque of the pump's mechanical system at an associated horsehead position at regular intervals and once the stroke is completed the raw torque samples and associated horsehead positions are placed in an array, the array of raw torque samples and horsehead positions can be filtered by the microprocessor into a second filtered array and then converted by the microprocessor into a rotatum array (derivative of torque with respect to time) of one or both of the raw or filtered arrays and stored as a rotatum array. The down stroke portion of the rotatum array is then analyzed by the microprocessor to determine the horsehead position when the piston of the down hole pump encounters wellbore fluid in the well (pump fillage).
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: September 10, 2019
    Assignee: Schneider Electric Systems Canada Inc.
    Inventors: Zackery Sobin, Scott Guimond, James Redmond
  • Patent number: 10408206
    Abstract: Methods and apparatus to determine parameters of a pumping unit for use with wells are disclosed. An example apparatus includes a housing and a processor positioned in the housing. The processor is to determine a first load on a polished rod of a pumping unit, to estimate a first torque of a motor of the pumping unit, and determine a first torque factor for the pumping unit. The processor is to, based on the first load, the first torque, and the first torque factor, determine a phase angle of a counterbalance of the pumping unit or a moment of the counterbalance.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: September 10, 2019
    Assignee: BRISTOL, INC.
    Inventor: Thomas Matthew Mills
  • Patent number: 10400796
    Abstract: The present invention relates to an ejector assembly and a vacuum pump, the ejector assembly including a typical cylindrical vacuum ejector and a support part. The support part includes a first support having a supply line extending outwards from a hole in which a first end of the ejector is mounted, and a second support having a discharge line extending outwards from a hole in which a second end of the ejector is mounted. Further, the first and second supports facing each other are configured such that the outer circumferential surfaces thereof are in contact with the inner circumferential surface of a pipe member so as to form a space between the first and second supports, the space communicating with through holes. In the vacuum pump using the ejector assembly, the pipe member is a housing, and the space is a vacuum chamber formed in the housing.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: September 3, 2019
    Assignee: VMECA CO., LTD.
    Inventor: Ho-Young Cho
  • Patent number: 10396621
    Abstract: An electric compressor includes a compression mechanism that compresses refrigerant, an electric motor that drives the compression mechanism, a drive circuit that drives the electric motor, a housing that forms therein a motor chamber in which the electric motor is accommodated, a cover that is attached to the housing, a rotary shaft, and a relay terminal portion. The cover is configured to cooperate with the housing to form a drive circuit chamber in which the drive circuit is accommodated. Rotation of the electric motor is transmitted to the compression mechanism through the rotary shaft. The relay terminal portion provides electrical connection between a wire of the drive circuit and a wire of the electric motor. The housing includes a partition wall that separates the motor chamber and the drive circuit chamber from each other. The relay terminal portion is disposed between the partition wall and the rotary shaft.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: August 27, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuya Hattori, Kunihisa Matsuda, Hiroki Nagano, Atsuhiro Ishida, Tomohiko Sugiyama, Takuro Yamashita
  • Patent number: 10385840
    Abstract: A system and method for flooded start control of a compressor having a crankcase heater are provided. A control module receives sensed data from a sensor, determines a current rate of liquid migration into the compressor, and compares the current rate with first and second predetermined thresholds. The control module operates the compressor in a flooded-start control mode, including operating the compressor according to at least one cycle with a first time period when the compressor is on and a second time period when the compressor is off. The control module operates the compressor in the flooded start control mode when the current rate is greater than the first predetermined threshold, activates the crankcase heater when the current rate is between the first and second predetermined thresholds, and operates the compressor without the flooded start control mode when the current rate is less than the second predetermined threshold.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: August 20, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Hung M. Pham
  • Patent number: 10388416
    Abstract: A motor-driven centrifugal pump for circulating a coolant in a primary circuit of a nuclear reactor comprises a sealed motor unit, a hydraulic part and a shaft which is immersed in the coolant, turned by the sealed motor unit and pumping the coolant by an impeller of the hydraulic part secured to the shaft. The motor unit comprises a dry stator and an immersed rotor, mounted securely on the shaft. The motor-driven pump also comprises an immersed flywheel mounted securely on the shaft between the rotor of the motor unit and the impeller of the hydraulic part, allowing a minimum slowing-down time after the electrical power supply is cut; and an immersed anti-backspin device, configured to mechanically block the rotation of the shaft in a predetermined direction.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 20, 2019
    Assignee: CLYDE UNION S.A.S.
    Inventors: Stéphane Mauvais, Bruno Soudy, Cécile Bras, Sylvain Stihle, Olivier Caregnato
  • Patent number: 10385861
    Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 20, 2019
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Nick J. Degenstein, Lee J. Rosen, Ahmed F. Abdelwahab, Carl L. Schwarz, Reh-Lin Chen, Henry E. Howard
  • Patent number: 10378434
    Abstract: A variable turbine geometry turbine turbocharger (1) includes a vane ring assembly (29) configured to control flow of exhaust gas to a turbine wheel (12), and retainers (60, 160) that are used to secure the vane ring assembly (29) to the bearing housing (16) in a desired axial and radial position and angular orientation relative to the bearing housing (16). In some embodiments, the vane ring assembly (29) is spring biased toward an axially outward position relative to the bearing housing (16), and the retainers (60, 160) retain the vane (30) ring in the desired position against the spring bias.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: August 13, 2019
    Assignee: BorgWarner Inc.
    Inventors: Elias Alan Morgan, Greg Williams