Patents Examined by Bryan M Lettman
  • Streamlined valve assembly for downhole pump of reciprocating pump system
    Patent number: 11091980
    Abstract: A downhole pump used for a reciprocating pump system includes a barrel coupling to a tubing string and having a standing valve and includes a plunger coupling to a rod string and having a traveling valve. One or both of the valves can include an assembly comprising a housing, an insert, a ball, and a seat. The insert allowing for flow therethrough defines a ball stop at one end has a ball passage at the other end. The insert positions in flow passage of the housing, and one of the ends engages a shoulder in the passage. The insert includes sidewalls and a conical body to reduce turbulence, flow velocity, gas breakout, ball chatter, and the like.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: August 17, 2021
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: John E. Stachowiak, Jr.
  • High viscosity pumping system and method of using same
    Patent number: 11085451
    Abstract: An electrical submersible pump (ESP) for use in a high viscosity pumping system includes a pump shaft, at least one rotating impeller including an impeller hub and one or more impeller vanes projecting from the impeller hub. Each of the one or more impeller vanes includes an impeller vane edge, and at least one stationary diffuser positioned below the at least one rotating impeller. A diffuser includes a diffuser hub and a diffuser shroud including a diffuser shroud surface. The impeller vane edge and the diffuser shroud surface are separated only by a clearance gap.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 10, 2021
    Assignee: ALKHORAYEF PETROLEUM COMPANY LIMITED
    Inventors: Woon Yung Lee, Ying Xue, Yun Cai
  • Low profile overhead bearing assembly for pump bearing assembly
    Patent number: 11085458
    Abstract: An improved pump and sealing assembly having particular utility to vertically extending pumps/pump shafts provides an arrangement that enables field repair as opposed to requiring travel of the host vessel to a shipyard. The apparatus includes an adapter housing that is configured to provide easy access to set screws that enable field disassembly. This adapter housing carries a sleeve and a bearing. The adapter housing can be fitted to a pump seal assembly that can include a mechanical seal and under bearing assembly.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 10, 2021
    Inventor: S. Elwood Yandle, II
  • Air cooling apparatus having an expander driven by a power transmission using a rotating magnetic field
    Patent number: 11078917
    Abstract: Air cooling devices driven by rotational power of an electric motor to expand air to thereby produce and supply cooling air. The air cooling device includes a power transmission device for increasing a rotational driving force of an expander that is disposed between an expander housing and the electric motor and for separating the expander from the electric motor. The power transmission device generates rotational magnetic field by receiving rotational power from the electric motor or receiving rotational power from the electric motor and external electric power. The rotating magnetic field generates a rotational force by interacting with magnetic field, based on attraction and repulsion forces. The air cooling device increases rotation speed and force when it transmits the power. The air cooling device increases a flow rate, and expands air adiabatically, thereby supplying cold air with high air density.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: August 3, 2021
    Inventors: Seungjoo Han, Byungho Han, Jongtaek Han
  • Viscous coupling for a coolant pump
    Patent number: 11073182
    Abstract: A viscous coupling may include: a housing part and an input body rotatable relative to the housing part that at least partially delimit an interior space; a shaft rotatable relative to the housing part and on which an output body arranged in the interior space may be formed for conjoint rotation with the shaft; a coupling region formed between the output and input bodies and configured to hold a viscous fluid to assure a coupling between the input body and the output body; a holding chamber for collecting coolant leaking from the coolant pump; a housing wall conformed integrally with the housing part and partially delimiting the holding chamber; and an actuator housing and an electric actuator therein by which a degree of the coupling between the input body and the output body may be adjustable. The actuator housing may at least partially cover the holding chamber.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 27, 2021
    Inventor: Martin Gross
  • Cylinder assemble structure for compact air compressor
    Patent number: 11067070
    Abstract: A cylinder coupling structure of a compact air compressor includes a block, a tubular-shaped cylinder assembled to the block, a valve cover which covers the valve assembly, and at least one pressurized bolt which assembles the valve cover and the block. A piston is reciprocated inside the cylinder. A stator is assembled to the block, a rotator is located to relatively rotate as to the stator, and a crank axis is assembled to the rotator to integrally rotate with the rotator to be axially supported in the block and to be rotatable. A connecting rod, each of both ends thereof is connected to the crank axis and the piston, respectively.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: July 20, 2021
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Jong Hyuk Kim, Jin Sun Park
  • Rotary compressor having a rolling piston with coupling groove
    Patent number: 11060521
    Abstract: A rotary compressor includes a cylinder, a drive unit, a piston, a vane, and an oil passage. The cylinder includes a suction chamber for suctioning fluid and a compression chamber for compressing fluid. The drive unit rotates a drive shaft by connecting to the cylinder. The piston oscillates in the cylinder by connecting to the drive shaft. The vane extends between the cylinder and the piston so as to separate the suction chamber from the compression chamber, and some parts of the length of the vane are inserted into a slide groove formed in the cylinder. One end of the vane is connected to the coupling groove formed in the piston. The oil passage is disposed between one end of the vane and the rolling piston so as to receive oil therethrough.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: July 13, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Seseok Seol, Bumdong Sa
  • Heating pump
    Patent number: 11060531
    Abstract: A heating pump includes a pump body and a driving motor. The pump body includes a pump housing with a water inlet and a water outlet, a heating member fixed in an interior of the pump housing, and an impeller connected with the driving motor. The heating member includes fittings and a heating coiled pipe connected between the fittings and bent into an arc. The impeller is disposed at an upper part of the pump housing, one end of the driving motor is disposed adjacent the impeller, and the heating coiled pipe circles around a radial side portion of part of the driving motor. The heating pump has a rational design and high heat exchange efficiency. The safety auxiliary motor has a low requirement for power. The axial size of the water pump is significantly reduced.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: July 13, 2021
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Awade Badafem, Shao Peng Mo, Min Li, Jin Jin Wu
  • Downhole pump with traveling valve and pilot
    Patent number: 11053784
    Abstract: A fluid pump apparatus for an artificial lift system has a barrel, a standing valve positioned at a lower end of the barrel so as to be movable between an open position and a closed position, a plunger reciprocatingly mounted in the barrel, a traveling valve positioned in an interior of the plunger so as to control fluid flow through the plunger, and a pilot slidably positioned in the plunger. The plunger has a first aperture at an upper portion thereof and a second aperture extending through a wall of the plunger so as to open to a channel extending through the channel. The traveling valve is slidably movable within an interior of the plunger. The plunger has a seat that is cooperative with a surface of the traveling valve. The pilot is cooperative at the surface of the traveling valve so as to move the traveling valve.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: July 6, 2021
    Assignee: VLP LIFT SYSTEMS, LLC
    Inventor: William Michel
  • Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism
    Patent number: 11047380
    Abstract: A high pressure fuel pump includes a pump housing, pressure and damper chambers, a metal diaphragm, a press-fitted portion, and a weld portion. The pressure chamber is provided in the pump housing. The damper chamber is formed by the pump housing and a damper cover. The metal diaphragm damper is arranged in the damper chamber. At the press-fitted portion, an annular surface of the damper cover is press fitted to an annular surface of the pump housing. The weld portion fixes the damper cover to the pump housing at an entire circumference of the press-fitted portion.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 29, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Satoshi Usui, Shingo Tamura, Katsumi Miyazaki, Sunao Takahashi, Masayuki Suganami, Minoru Hashida
  • Wastewater sump assembly
    Patent number: 11041487
    Abstract: A wastewater sump assembly for receiving and disposing of undesired fluid and, in some cases, solid waste is disclosed. A sump basin formed from a base, an upstanding wall and a top which are all defined from a single, integral, monolithic material may be employed. The top of the monolithic basin includes a pump access aperture sized to allow passage of a submersible pump. Pipe stubs are provided in a recessed area of the top to allow for easy connection to outlet and vent piping. Interchangeable switches of differing types, e.g. a diaphragm switch and a float switch can be utilized with the sump basin. Certain switch subassemblies include a handle to facilitate easy removal. The handle may also be utilized to hold a cord seal in place atop the sump. A diaphragm switch in accordance with the present disclosure may be positioned externally of the sump.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 22, 2021
    Assignee: FRANKLIN ELECTRIC COMPANY, INC.
    Inventors: Steven C. Gray, Robert D. Chase, Larry D. Talbott, Scott E. Stayton, K. Lynn Doughty
  • Hydraulic cylinder assembly
    Patent number: 11041513
    Abstract: A hydraulic cylinder assembly having a free-floating motor and pump, comprising a motor, and a hydraulic fluid reservoir coupled to the motor. There is a reservoir base plate having a pair of fluid path holes therein which run there through. The base plate has a mounting stud. There is a meshed gear fluid pump having a pair of downwardly directed inflow/outflow holes. The single mounting tab allows the easy placement or removal of the assembly into an operating location.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: June 22, 2021
    Inventor: Mark F. Pelini
  • Sump pump system with an electronic controller module secured in a sump pump power cord
    Patent number: 11035367
    Abstract: A sump pump system with a sump pump, a sump pump electrical cord connected to the sump pump, and a housing that is secured in line with, and an integral component of, the sump pump electrical cord. An electronic controller is located within the housing and comprises sensors, processors, a switch, and audible and visual alarms and indicators, wherein the switch and visual alarms and indicators are located on a face of the housing.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: June 15, 2021
    Assignee: Flint & Walling, Inc.
    Inventors: Eric J. Hansen, Josh Tang, Daniel R. Tang, Joseph Duff, Jeff Sloss
  • Reciprocating pumps having a pivoting arm
    Patent number: 11035348
    Abstract: A pump assembly including a power end including an output shaft having an output shaft axis. In addition, the pump assembly includes a fluid end including a piston configured to reciprocate to pressurize the working fluid. Further, the pump assembly includes a transmission coupled to each of the power end and the fluid end. The transmission includes a carriage coupled to the piston and a pivoting arm pivotably coupled to the carriage at a first connection about a first pivot axis. The first pivot axis extends in a perpendicular direction to a direction of the output shaft axis, and rotation of the output shaft about the output shaft axis is configured to cause the pivoting arm to pivot about the first pivot axis at the first connection and to cause the carriage to reciprocate.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 15, 2021
    Assignee: National Oilwell Varco, L.P.
    Inventor: Adrian Marica
  • Liquid pump including an impeller connected directly to a rotor receiving sleeve
    Patent number: 11028851
    Abstract: A fluid pump for conveying a fluid may include an internal rotor rotatable about an axis of rotation relative to an external stator and an impeller connected to the internal rotor in a rotationally fixed manner configured to convey a fluid. The internal rotor may include a rotor receiving sleeve having a base body. The base body may include a receiving chamber configured to receive an anchor unit. The internal rotor may further include a bearing bushing penetrating the rotor receiving sleeve coaxially to the axis of rotation. The bearing bushing may be configured to receive a rotor shaft. The impeller may be directly connected to the rotor receiving sleeve in a rotationally fixed manner.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 8, 2021
    Inventors: Johannes Diekmann, Michael Krappel, Andrej Rul
  • Systems and methods for monitoring a condition of a fracturing component section of a hydraulic fracturing unit
    Patent number: 11022526
    Abstract: Systems and methods to monitor a condition of a fracturing component section including a section frame and a hydraulic fracturing component of a hydraulic fracturing unit to pump fracturing fluid connected to the section frame may include a condition monitoring controller configured to receive one or more signals from one or more sensors configured to be connected to the fracturing component section and generate signals indicative of operating parameters associated with operation of the fracturing component. The condition monitoring controller may be configured to generate, based at least in part on the signals, condition signals indicative of approaching maintenance due to be performed, predicted component damage, predicted component failure, existing component damage, existing component failure, irregularities of component operation, and/or operation exceeding rated operation.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: June 1, 2021
    Assignee: BJ Energy Solutions, LLC
    Inventors: Tony Yeung, Ricardo Rodriguez-Ramon, Joseph Foster
  • High-pressure positive displacement plunger pump
    Patent number: 11022106
    Abstract: A drive system for a pump includes a housing defining an internal pressure chamber, a working fluid disposed within and charging the internal pressure chamber, and a reciprocating member disposed within the internal pressure chamber. A fluid displacement component has first and second surfaces. The first surface is configured to contact the working fluid and the second surface is configured to contact the process fluid. The area of the first surface is greater than the area of the second surface. A pull extends between and connects the reciprocating member and the fluid displacement component. The pull mechanically transfers a pulling force from the reciprocating member to the fluid displacement component.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: June 1, 2021
    Assignee: Graco Minnesota Inc.
    Inventors: Bradley H. Hines, Brian W. Koehn
  • In-vehicle compression device
    Patent number: 11015593
    Abstract: An in-vehicle compression device includes: a compressor including a cylinder and a piston that is slidably provided inside the cylinder and defines a compression chamber; a linear motor including a movable element reciprocatably connected to the piston; and a controller configured to control driving of the linear motor. The in-vehicle compression device is configured to supply a working fluid compressed in the compression chamber to a pressure device provided in a vehicle. The controller is configured to variably adjust a stroke of the piston according to a state of the vehicle.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: May 25, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Tsutomu Ito, Yoshinori Kawai, Kan Kobayashi
  • Reactor coolant pump set
    Patent number: 11015615
    Abstract: Non-Volume displacement pumps used at nuclear power plants (NPP) in reactor coolant pump sets for the primary coolant circuit of the nuclear power system. The reactor coolant pump set comprising a vertical vane-type single-stage pump with bottom arrangement of the impeller, the pump shaft is connected to the electric motor shaft by a rigid coupling, the radial-axial bearing, installed in the electric motor upper chamber, is made of two main elements: a radial bearing made in the form of a rotor metallic bushing installed on the cylindrical part of the collar and an axial bearing consisting of two stator lever-type balance arm systems with cover plates of antifriction material and rotor cover plates of antifriction material. The radial-axial bearing is cooled by water from the NPP system, pressure head whereof is increased by the screw-type pump located on the upper butt of the radial-axial bearing collar.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: May 25, 2021
    Assignees: Joint Stock Company “Central Design Bureau of Machine Building”, Joint Stock Company “Science and Innovations” (“Science and Innovations”, JSC)
    Inventors: Vladimir Sergeevich Gerasimov, Andrey Vladimirovich Goronkov, Aleksandr Sergeevich Vasil'ev, Rodion Petrovich Kazantsev, Sergey Yur'evich Shchutskiy
  • Venturi fluid pump with outlet flow controller
    Patent number: 11008987
    Abstract: A fuel pump for a fuel system includes a nozzle, a venturi, a pump inlet and a flow controller. The nozzle has an orifice through which fuel is ejected and the venturi is downstream of the nozzle and has an inlet through which fuel discharged from the orifice flows, a passage downstream of the venturi inlet through which fuel flows to create a drop in pressure in the area of the venturi, and an outlet through which fuel is discharged from the venturi. Fuel is drawn through the pump inlet by the drop in the pressure created in the area of the venturi and the flow controller is downstream of the outlet and has a chamber in which fuel from the venturi outlet is received. The flow controller causes fuel to fill the venturi to ensure performance of the fuel pump.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: May 18, 2021
    Assignee: WALBRO LLC
    Inventors: Kenneth J. Cotton, Elton J. Fisch, David D. Hacker, Jeffrey D. Hanby, Kevin L. Israelson, Roger N. Smith