Patents Examined by Peter J Bertheaud
  • Patent number: 11183902
    Abstract: A device for driving a compressor of a gaseous fluid, in particular an electric motor. The device comprises a rotor and a stator which are disposed extending along a common longitudinal axis. A carrier element is disposed in contact on a first end side, oriented in an axial direction, of the stator, which carrier element comprises at least one resiliently deformable pressure element with a contact region. The pressure element is developed extending with an extent in the axial direction and, in a mounted state of the device, is in contact with the contact region on a mating surface under resilient deformation. A method for mounting and a use of the device is also provided.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: November 23, 2021
    Assignee: Hanon Systems
    Inventors: Bernd Guntermann, David Walisko, Stephan Heinrichs
  • Patent number: 11181101
    Abstract: In one aspect, there is provided a damper control system for a reciprocating pump assembly according to which control signals are sent to electromagnets. In another aspect, there is provided a method of dampening vibrations in a pump drivetrain according to which a beginning of torque variation is detected and at least a portion of the torque variation is negated. In another aspect, signals or data associated with pump characteristics are received from sensors, torque characteristics and damper response voltages per degree of crank angle are calculated, and control signals are sent to electromagnets. In another aspect, a damper system includes a fluid chamber configured to receive a magnetorheological fluid; a flywheel disposed at least partially within the fluid chamber and adapted to be operably coupled to a fluid pump crankshaft; and a magnetic device proximate the flywheel. The magnetic device applies a variable drag force to the flywheel.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: November 23, 2021
    Assignee: SPM Oil & Gas Inc.
    Inventor: Joseph H. Byrne
  • Patent number: 11174857
    Abstract: A digital pressure switch is configured to be connected to a fluid pump. The digital pressure switch includes a pressure sensor configured to measure pressure inside a closed system, one or more relays configured to be connected to the fluid pump for activation and deactivation of the fluid pump, an amperage sensor configured to measure an amperage draw of an electric motor of the fluid pump, and a controller configured to process data from the pressure sensor and/or data from the amperage sensor and to activate or deactivate the motor of the fluid pump based on the data from the pressure sensor and/or the data from the amperage sensor, using the relays.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: November 16, 2021
    Inventors: Trent J. Kowalski, Ron E. McClellan, Richard A. West
  • Patent number: 11168679
    Abstract: A compressor for a compressed-air feed of a compressed-air supply installation, for operating a pneumatic installation, includes: a first compression space; a second compression space; an air feed port; a compressed-air outlet; and a piston having a first face side, which is subjectable to pressure and which is directed toward the first compression space, and a second face side, situated opposite the first face side, which is subjectable to pressure and which is directed toward the second compression space, the first compression space being delimited by the first face side and the second compression space being delimited by the second face side. The first face side includes a full side and the second face side includes a step side. The piston is attached via a connecting rod to a drive. The first compression space and the second compression space are connected to one another via a connecting line.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 9, 2021
    Inventors: Jonas Wichern, Klaus Bredbeck, Uwe Stabenow
  • Patent number: 11168699
    Abstract: A destratification fan assembly of an industrial environment includes a support frame fixable to the ceiling of the industrial environment, a blade group rotatable about a main axis (X-X) and an electric motor group supporting the blade group and supported by the support frame. The electric motor group includes a drive shaft having a blade end to which the blade group is solidly connected, an electric motor operatively connected to the drive shaft to guide it in rotation, and an electronic command device of the electric motor for commanding the electric motor. In some embodiments, the electric motor includes a rotor and a stator, wherein the rotor is of the external rotor type.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: November 9, 2021
    Inventor: Giambattista Losio
  • Patent number: 11168684
    Abstract: Variable displacement pump has first control hydraulic chamber 21 giving force to cam ring 5 in direction that decreases volume variation of each pump chamber 13 by internal pressure, second control hydraulic chamber 22 giving force to cam ring in direction that increases volume variation of each pump chamber by internal pressure, first seal surface 44 formed on both end surfaces of cam ring, which are in sliding-contact with both opposing inside surfaces of pump body 1 and cover member 2, and sealing gap between each pump chamber and first control hydraulic chamber, and second seal surface 45 sealing gap between each pump chamber and second control hydraulic chamber at outlet section side. Radial direction width W2 of second seal surface is greater than that W1 of first seal surface. Increase in weight of the pump can be suppressed while suppressing increase in pump control pressure against intention of control.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: November 9, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Koji Saga, Hideaki Ohnishi, Yasushi Watanabe
  • Patent number: 11162503
    Abstract: A magnetic bearing device includes a magnetic bearing including a plurality of electromagnets, a displacement sensor configured to output an output signal in accordance with a displacement of a shaft, and a controller configured to control the electromagnets. The controller compensates for a change in levels of the output signal, the change occurring in accordance with a change in ambient temperature around the displacement sensor, based on one or more reference values correlating with the change in levels of the output signal. The one or more reference values are detected for use in controlling the rotary electric machine, a fluid machine system including the rotary electric machine, or an apparatus including the fluid machine system.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: November 2, 2021
    Assignee: Daikin Industries, Ltd.
    Inventors: Atsushi Sakawaki, Kazuya Hirata
  • Patent number: 11156220
    Abstract: A compressor for producing compressed air, in particular for a compressed air supply system of a vehicle, includes an electric motor in the form of a brushed direct current electric motor. The compressor has at least one first and one second compressor step, which can be driven by the electric motor. The motor can be controlled by means of an electronic control module of a control device by limiting an operational flow of the motor.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: October 26, 2021
    Inventors: Ralf Bremeier, Pierre Celestin Koumenda, Jorg Meier, Robert Sohn, Uwe Stabenow
  • Patent number: 11148886
    Abstract: A peristaltic transport device comprising a tube member having an inner space to receive material, the member includes a series of repeating sections wherein each of the sections includes a plurality of bladders to selectively occlude portions of the inner space according to a defined peristaltic sequence to transport the material through the inner space. An actuator assembly is coupled to the tube member to control the selective occlusion of the inner space by selectively expanding and contracting ones of the plurality of bladders according to the defined peristaltic sequence. The actuator assembly simultaneously controls corresponding ones of the plurality of bladders across the series of repeating sections.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: October 19, 2021
    Assignee: Eidon, LLC
    Inventor: Roger N. Johnson
  • Patent number: 11143186
    Abstract: The present invention relates to a two-stage liquid ring vacuum pump in which two-stage impellers are attached to an axial end portion of a main shaft (rotating shaft) of a motor. The two-stage liquid ring vacuum pump includes a first-stage impeller (4) provided in a first-stage pump chamber (1), a second-stage impeller (5) provided in a second-stage pump chamber (2), a single rotating shaft (7) to which the first-stage impeller (4) and the second-stage impeller (5) are fixed, and an exhaust port (Pd) of the first-stage pump chamber (1) and an intake port (Ps) of the second-stage pump chamber (2) which communicate with each other. An outer diameter of the first-stage impeller (4) is larger than an outer diameter of the second-stage impeller (5).
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: October 12, 2021
    Assignee: Ebara Corporation
    Inventors: Hiroyuki Kawasaki, Nozomu Sasaki
  • Patent number: 11143172
    Abstract: A liquid pump having a pump liner and a pump piston, wherein the pump liner defines a central longitudinal bore and a transverse inlet bore communicating with the central bore for conveying a liquid. The pump piston has a centerline intersecting with a centerline of the transverse inlet bore, and further has a flat surface formed parallel with the piston centerline at a distal end of the piston. The flat surface defines a cut-out portion of the piston, wherein the cut-out portion has a hydraulic diameter equal to the diameter of the transverse inlet bore of the liner, and a distance from the centerline of the piston to the flat surface defining the cut-out portion is greater than or equal to ½ of the diameter of the transverse inlet bore of the liner.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 12, 2021
    Assignee: FLUID METERING, INC.
    Inventors: David Lionel Rawlings, Joseph Ervin Middleton
  • Patent number: 11131326
    Abstract: An ejector includes a nozzle, a suction chamber, and a diffuser. A diffuser further includes an attachment configured to change the dimensions of the outlet flow path. The attachment changes the length X of a narrowed flow path and the length Y and the inner diameter D of a parallel flow path such that expressions (1) and (2) are satisfied: X=A×D??(1), and Y=B×D??(2).
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 28, 2021
    Assignee: TLV CO., LTD.
    Inventor: Fumihiro Kawashima
  • Patent number: 11131316
    Abstract: A centrifugal compressor includes a partition wall that is arranged between a ring member and the bottom of a main body in a speed-increaser chamber. The centrifugal compressor further includes an introduction passage that guides oil in a stirring region to a storage region. The stirring region includes a region between the partition wall and the ring member in the speed-increaser chamber. The storage region includes a region between the partition wall and the bottom of the main body in the speed-increaser chamber. The oil that has been stirred by rotation of the ring member collides the inner circumferential surface of a speed increaser housing before flowing toward the partition wall. The oil is then guided to the storage region via the introduction passage. Since the oil stored in the storage region is unlikely to be stirred by rotation of the ring member, only a small amount of oil is stirred by the ring member.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 28, 2021
    Inventors: Takahito Kunieda, Ryosuke Fukuyama, Yoshiyuki Nakane
  • Patent number: 11125250
    Abstract: A fan device including an electric motor assembly (24, 26) designed to drive at least one blade wheel (34, 36) in a flow channel (18) provided axial to the blade wheel, an electronic assembly (38, 40), which forms commutator and/or ballast electronics for the electric motor assembly, is arranged in series with the electric motor assembly, and is produced on a circuit carrier, and a carrier unit (14) formed axially on or in the flow channel for retaining the electric motor assembly, wherein the carrier unit, which forms an inner circumference of the flow channel at least in sections, is made from a thermally conductive material, wherein the carrier unit has, on an outer segment (16) radially opposite to the flow channel, a mounting and cooling surface for interacting with the circuit carrier and/or power electronics components provided thereon in a heat-dissipating manner.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: September 21, 2021
    Assignee: EBM-Papst St. Georgen GmbH & Co. KG
    Inventors: Hansjoerg Berroth, Hans-Peter Krack, Bernd Maier
  • Patent number: 11118582
    Abstract: A submersible pumping system has an electric motor, a rotary hydraulic pump driven by the electric motor, and a linear hydraulic pump that is configured to move a production fluid. The rotary hydraulic pump produces a pressurized working fluid that drives the linear hydraulic pump. In another aspect, a method is disclosed for controlling the temperature of an electric motor within a submersible pumping system disposed in a wellbore. The method includes the steps of circulating motor lubricant through a hydraulically driven production pump to reduce the temperature of the motor lubricant.
    Type: Grant
    Filed: June 29, 2019
    Date of Patent: September 14, 2021
    Assignee: Baker Hughes ESP, Inc.
    Inventors: Brian Reeves, Charles Collins, Aaron Noakes, Eric Rohlman
  • Patent number: 11118602
    Abstract: A pump includes a circular housing having a thin profile, a brushless open frame motor, and a centrifugal impeller. The pump is configured to transport a fluid to transfer thermal energy to or from one or more external components.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 14, 2021
    Assignee: Raytheon Company
    Inventor: Phillip W. Thiessen
  • Patent number: 11111913
    Abstract: An oil lubricated compressor having a universal motor, efficient starting and re-starting characteristics, and a long operating life. The oil lubricated compressor can have a brushed or brushless universal motor which can drive a cooling fan and a pump. The universal motor can achieve a high torque to voltage ratio, as well as a high torque to current ratio, upon starting or re-starting of the compressor. Optionally, the oil lubricated compressor can use a single cooling fan disposed in the compressor at a location which is between the universal motor and a cylinder head of the pump.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: September 7, 2021
    Assignee: Black & Decker Inc.
    Inventors: Stephen J. Vos, Lance S. Hathcock, James Vintzel, Dalton E. McFarland
  • Patent number: 11105327
    Abstract: A valve assembly comprising a valve seat, a valve body, a valve spring, and a valve guide, wherein the valve seat and/or a valve seat housing in which the valve seat is seated comprises a plurality of grooves; wherein the valve body comprises a first side comprising a valve seat contact surface, and a second side comprising a coupler actuating feature; and wherein the valve guide comprises a coupler, and a plurality of wings, wherein the valve guide comprises a valve guide end distal the coupler, wherein, when the valve guide is coupled to the valve body via the coupler, the valve guide end distal the coupler extends a greater radial distance from the central axis of the valve body than the plurality of wings, and wherein the valve guide can be coupled to or decoupled from the valve body via the coupler by actuating the coupler actuating feature.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: August 31, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Justin Lee Hurst, James Alan Olis
  • Patent number: 11105326
    Abstract: A valve plate assembly for a compressor according to the principles of the present disclosure includes a valve plate and a suction valve retainer. The valve plate is configured to separate suction-pressure working fluid entering a cylinder of the compressor from discharge-pressure working fluid exiting the cylinder of the compressor, the valve plate defining a discharge valve seat. The suction valve retainer is configured to retain a suction valve within a suction valve seat disposed about a central longitudinal axis of the cylinder and to extend radially outward from the central longitudinal axis of the cylinder without extending beyond a suction passage of the compressor.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: August 31, 2021
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Siddharth Dhanpal Devanawar, Janardhan Sakhahari Kolpe, Rajesh Vasant More
  • Patent number: 11105333
    Abstract: A disclosed submersible pump apparatus includes a three-dimensional frame, a pump housing, a drive shaft, an impeller, and first and second motors. The impeller is mounted on the driveshaft within the pump housing and is driven by one or both of the motors. The first motor is connected to a first end of the drive shaft and the second motor connected a second end of the drive shaft. The first and second motors are hydraulic motors and in a first configuration, the first and second motors are configured to cooperatively rotate the drive shaft with hydraulic fluid supplied to and removed from the first and second motors using a parallel fluidic connection. In a second configuration, only one of the motors has a drive gear and drives the drive shaft while the second motor does not have a drive gear and acts as a frictionless bearing supporting the drive shaft.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: August 31, 2021
    Inventor: Steve V. Pemberton