Patents Examined by Peter J Bertheaud
  • Patent number: 10415553
    Abstract: A device for choking a fluid flow includes a pot-like base body, in the base of which a first passage opening is arranged, and a closing body guided axially moveably in the pot-like base body against a spring force of a spring element and having a second passage opening that forms a static choke point with a predefined fixed opening cross section. The closing body in combination with the spring element and the first passage opening forms a dynamic choke point with a dynamic opening cross section that is variably adjustable depending on a pressure difference.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 17, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Stephan Steingass, Oliver Gaertner, Oliver Hennig, Vaclav Kocourek
  • Patent number: 10415569
    Abstract: A pumping system for at least one aquatic application includes a motor coupled to a pump and a controller in communication with the motor. The controller is adapted to determine a first motor speed of the motor, determine a reference power consumption using a reference flow rate and a curve of speed versus power consumption for the reference flow rate, and generate a difference value between the reference power consumption and a present power consumption. The controller drives the motor to reach a steady state condition at a second motor speed based on the difference value.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: September 17, 2019
    Assignees: Pentair Water Pool and Spa, Inc., Danfoss Power Electronics A/S
    Inventors: Robert W. Stiles, Jr., Lars Hoffmann Berthelsen, Peter Westermann-Rasmussen, Gert Kjaer, Florin Lungeanu
  • Patent number: 10415430
    Abstract: A coupling assembly, including a first component and a second component overlapping in a join region; a joining device allowing the first and second components to rest against each other clampingly and region; the joining device including a clamp resting on the first component and the second component and having a bolt connection adapted for securing the clamp to the first and second component. The first and second components are manufactured from a ceramic matrix composite; the first component having a holding portion including a front side facing the clamp, a rear side facing away from the clamp, and a receiving opening; and the bolt connection having a bolt portion that extends through the receiving opening and, at the end thereof facing away from the clamp, having a bracing portion angled relative to the longitudinal axis of the bolt portion and that rests against the rear side.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: September 17, 2019
    Assignee: MTU Aero Engines AG
    Inventor: Alexander Boeck
  • Patent number: 10415597
    Abstract: An electric pump can have a stator with a stator core defining a plurality of poles, a coil of electrically conductive material extending around each respective one of the plurality of poles, and a stator-cooling chamber, as well as an impeller coupled to a rotor. A first region can be at least partially occupied by the impeller and fluidicly coupled with the stator-cooling chamber to convey a working fluid from the first region into the stator-cooling chamber. The stator-cooling chamber can be configured to facilitate heat transfer from the stator core and/or the coils to the working fluid in the stator-cooling chamber. Cooling systems can incorporate such a pump. Related methods also are disclosed.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 17, 2019
    Assignee: CoolIT Systems, Inc.
    Inventor: Geoff Sean Lyon
  • Patent number: 10415544
    Abstract: The present disclosure is directed to a system for determining a torque exerted on a shaft of a wind turbine. The system includes a gearbox coupled to the shaft. The gearbox includes a first arm and a second arm. First and second fluid dampers respectively couple to the first and second arms of the gearbox. A first fluid conduit fluidly couples the first and second fluid dampers. A first pressure sensor is in operative association with the first fluid conduit to detect a fluid pressure of fluid within the first fluid conduit. A controller communicatively couples to the first pressure sensor. The controller is configured to determine the torque exerted on the shaft based on signals received from the first pressure sensor.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: September 17, 2019
    Assignee: General Electric Company
    Inventors: Hartmut Scholte-Wassink, Till Hoffmann
  • Patent number: 10415567
    Abstract: A compressor may include a first compression member, a second compression member, and a motor assembly. The second compression member is movable relative to the first compression member and cooperates with the first compression member to define a compression pocket therebetween. The motor assembly drives one of the first and second compression members relative to the other one of the first and second compression members. The motor assembly includes a stator and a rotor. The rotor is rotatable relative to the stator about a rotational axis. The stator surrounds the rotational axis. The rotor may include magnets that are arranged around the rotational axis. The magnets may be spaced apart from the stator in an axial direction that is parallel to the first rotational axis.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: September 17, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Roy J. Doepker, Robert C. Stover
  • Patent number: 10408203
    Abstract: A hand air pump with air accumulation function includes a control valve with a valve block and a control lever switchable between a first operation mode where the plunger assembly is allowed to pump compressed air into an air accumulation tank for accumulation, and a second operation mode where the air accumulation tank is opened to discharge the accumulated compressed air for inflating an attached tire and the plunger assembly is allowed to pump compressed air directly into the attached tire.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 10, 2019
    Assignee: LUFT TECH CO., LTD.
    Inventor: Lucas Chen
  • Patent number: 10408207
    Abstract: A bellows pump device includes first and second bellows mounted on a pump head so as to be expandable/contractible independently of each other and configured to suck a fluid from a suction passage thereinto by expansion thereof and discharge the fluid therefrom to a discharge passage by contraction thereof. First and second air cylinder portions are configured to respectively cause the first and second bellows to perform expansion/contraction operation. First and second detection devices are configured to detect expanded/contracted states of the first and second bellows, respectively. A control unit is configured to control drive of the first and second air cylinder portions on the basis of each of detection signals of the first and second detection devices such that, before one bellows comes into a most contracted state, the other bellows is caused to contract from a most expanded state.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: September 10, 2019
    Inventors: Masateru Yamada, Kazukiyo Teshima, Atsushi Nakano, Daisuke Urata, Keiji Nagae
  • Patent number: 10404129
    Abstract: An electric motor for a blower and the like has a commutator and a brush assembly for making electrical contact with the commutator. The brush assembly includes a brush holder and a brush slidably mounted to the brush holder. The brush holder includes a brush holder plate and a side portion extending from the brush holder plate. The brush is arc-shaped and includes a first surface contacting the brush holder plate and a second surface contacting the side portion of the brush holder. The side portion of the brush holder has a number of ribs contacting the second surface of the brush.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 3, 2019
    Inventors: Wen Liang Li, James Ching Sik Lau, Kwong Yip Poon, Wan You Wang, Ji Dong Chai
  • Patent number: 10400767
    Abstract: An electric pump unit is provided that ensures capability for lubricating a plain bearing and in which a lubricating oil passage is formed with a simple structure. This pump unit includes: a pump in which a rotor placed in a pump chamber of a pump housing rotates; and an electric motor having a motor shaft coupled to the rotor. The motor shaft is rotatably supported by a cylindrical plain bearing disposed in the pump housing. An oil seal is provided on the opposite side to the pump chamber with the plain bearing between so as to be located between the pump housing and the motor shaft. Oil supply grooves are formed in an inner peripheral surface of the plain bearing so as to extend through the plain bearing in an axial direction.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: September 3, 2019
    Inventors: Yasukata Miyagawa, Noriyuki Okamoto
  • Patent number: 10391215
    Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: August 27, 2019
    Assignee: TC1 LLC
    Inventors: Richard K. Wampler, David M. Lancisi
  • Patent number: 10393108
    Abstract: A pumping system including a plurality of pumps each having a pump fluid outlet, a drive shaft, a prime mover, and fluid displacing members operatively coupled with the drive shaft. A common fluid conduit may be fluidly coupled with each pump fluid outlet. A control system of the pumping system includes position sensors operable to generate information relating to phase and/or speed of each pump, pressure sensors operable to generate information relating to fluid pressure spikes, and a controller in communication with the position and pressure sensors. The controller is operable to cause the prime movers to adjust the phasing of the pumps with respect to each other, based on the information relating to fluid pressure spikes, and synchronize the speed of the pumps.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 27, 2019
    Inventors: Jonathan Wun Shiung Chong, Lewis Callaway, Kim Hodgson
  • Patent number: 10393106
    Abstract: The present disclosure relates to a system and method for pumping a feedstock slurry through a device. The system includes a pressure pump, a first sensor, a second sensor, a controller, and a control valve. The pressure pump includes a plunger configured to pressurize the slurry to a first pressure prior to the slurry entering the device. The first sensor is configured to sense a second pressure of the slurry entering the device. The second sensor is configured to sense the position of the plunger. The controller is configured to determine a change of position of the plunger based on the sensed position of the plunger and to control the movement of the plunger by setting a plunger mode based on the second pressure of the slurry and the change of position of the plunger. The control valve is configured to control the flow rate of the slurry through the device.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: August 27, 2019
    Inventors: Michael Joseph Gillespie, III, Christopher Paul Gillespie
  • Patent number: 10385877
    Abstract: A fluid machine includes a rotatable hub; a plurality of blades spaced apart from one another along a circumferential direction with respect to a rotation center of the hub; and a shroud extending along a circumferential direction with respect to the rotation center of the hub and covering the plurality of blades. The shroud includes: a flow passage, the flow passage formed to be recessed with respect to an inner surface of the shroud facing the blades; and a plurality of resonators provided in the flow passage.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: August 20, 2019
    Inventor: Kil Young Kim
  • Patent number: 10385852
    Abstract: A method for expulsion of a fluid inside a compressor at start-up including the steps: applying a first signal to the motor windings for a first duration of time to align the motor rotor to the initial position; applying a second signal to the motor windings to start rotation of the compressor shaft; applying a third signal to the motor windings for a second duration of time to hold the compressor shaft in place; and applying a fourth signal to the motor windings to accelerate the motor to an operational speed.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: August 20, 2019
    Inventors: Da Zhang, Richard T. Pandzik, William Perdikakis, Mark E. Rollins
  • Patent number: 10385855
    Abstract: An electric pump includes a motor rotor provided in a first end region in the axial direction of a rotary shaft, a pump rotor provided in a second end region in the axial direction of the rotary shaft, and a pump housing supporting the rotary shaft. The pump housing has a first housing portion for accommodating the pump rotor and a second housing portion having a blocking portion. The first housing portion has a suction port for drawing in fluid and a discharge port for discharging the drawn-in fluid.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 20, 2019
    Inventors: Masaru Irie, Toshihiro Matsuura
  • Patent number: 10378525
    Abstract: A motor-driven apparatus includes a pump and a servo motor connected respectively to outer sides of opposed upstanding support plates. A pump shaft and a servo motor shaft extend horizontally toward each other into a space between the support plates and are coupled together by a flexible coupling. The servo motor includes a fan cover enclosing and spaced from a motor frame of the servo motor. A cooling fan disposed inside the fan cover circulates air in the space between the fan cover and the motor frame to air-cool the motor frame.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: August 13, 2019
    Inventors: Toshiaki Nakamura, Kenichi Hayashi, Daiki Tanemura
  • Patent number: 10371133
    Abstract: A water pump assembly includes a lower housing configured for being positioned within a well. The lower housing includes a bladder therein. The bladder expands to force water within the housing into an outlet of a valve apparatus and the bladder contracts to draw water into the housing. A cylinder and piston fluidly coupled to an inlet of the valve apparatus and the inlet is fluidly coupled to the bladder. A one way valve is positioned within the valve apparatus and fluidly connects an inlet chamber including the inlet to an outlet chamber including the outlet. The one way valve allows water to flow from the outlet chamber into the inlet chamber and restricts water from flowing from the inlet chamber into the outlet chamber. An outlet conduit is fluidly coupled to the outlet of the valve apparatus to carry the water where desired.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: August 6, 2019
    Inventors: Bradley John Schrank, Nathan Rittenour
  • Patent number: 10371138
    Abstract: A rotary pump in a housing which defines an annular chamber with an inlet and outlet port which are located on either side of a partition which extends across the chamber. A flexible annular diaphragm forms one side of the chamber and faces a wall on the housing which forms the second side of the chamber. The diaphragm is sealed at its innermost and outermost edges to the housing and has legs extending away azimuthally around and integral with the diaphragm. A swashplate is connected to the legs of the diaphragm such that in use, movement of the swashplate causes the diaphragm to press precessively against the wall of the housing to force fluid drawn in at the inlet on one side of the partition around the chamber and to expel the fluid at the outlet at the other side of the partition.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: August 6, 2019
    Inventors: James Andrew Golding, William Eric Shepherd
  • Patent number: 10352312
    Abstract: A hermetic compressor (100) includes an electric element (110), a compression element (112), and a hermetic container (102). The compression element includes a shaft (118), a cylinder block (124), a piston (136), a connection section (144), and an oil supply mechanism (130). The piston has a columnar seal section (160) in sliding contact with an inner peripheral face of the cylinder, two extension sections (162) that have circular arc faces each having the same radius as a radius of the seal section and extend from the seal section to the bottom dead center side in the axial direction with a circumferential gap therebetween, and a columnar capture section (164) that extends further toward the bottom dead center side than the extension section and has a smaller radius than the radius of the seal section.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: July 16, 2019
    Inventors: Ko Inagaki, Masanori Kobayashi, Yu Haraki, Yoshinori Ishida