Patents Examined by Bryan M Lettman
  • Patent number: 11111890
    Abstract: A fuel supply device includes a surface level detection device that detects a surface level of fuel through use of a float. A supply main body is placed in a fuel tank through an insertion opening and supplies the fuel to an outside. A surface level detection unit, which includes the float, is rotatable relative to the supply main body, and a rotational range of the surface level detection unit is set to include at least an inserting direction of the supply main body. A distal end part of the surface level detection unit, which is furthermost from an imaginary rotational center axis in the surface level detection unit, is placed on an upper side of an imaginary plane, which includes the imaginary rotational center axis and a center of gravity of the surface level detection unit, in a rotational direction of the surface level detection unit.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: September 7, 2021
    Inventors: Takashi Akiba, Rui Adachi, Norihiro Hayashi
  • Patent number: 11098595
    Abstract: An airfoil includes a leading edge and a trailing edge. A first exterior wall extends between the leading edge and the trailing edge. A second exterior wall opposite the first exterior wall extends between the leading edge and the trailing edge. A first cavity is adjacent the first exterior wall and includes a central portion and at least one forward extending slot passage and at least one aft extending slot passage.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 24, 2021
    Inventors: San Quach, Tracy A. Propheter-Hinckley
  • Patent number: 11092149
    Abstract: A dual pumping fluid pump which significantly reduces vibration and noise generation. When a cam installed on a rotating shaft of a single electric motor is rotated, a pair of first and second diaphragms installed in connection to an eccentric shaft portion formed on both the left and right sides of the cam alternatingly rise and descend in opposite directions and cause first and second intake check valves and first and second discharge check valves provided on a fluid passage box integrally and connectedly installed on the top surface of a pump housing to open or close first and second intake holes and first and second discharge holes to admit fluid through a fluid inlet and simultaneously discharge fluid through a fluid outlet, so that the simultaneous effects of the intake pressure and discharge pressure of fluid causes pressure balancing to occur.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: August 17, 2021
    Assignee: FOURL DESIGN CO. LTD.
    Inventor: Suk Ho Jeon
  • Patent number: 11092145
    Abstract: A valve retainer assembly and pump including the same. In an embodiment, the valve retainer assembly includes a retainer configured to engage with a suction valve assembly and retain the suction valve assembly within a chamber of a fluid section of a reciprocating pump. The retainer includes a pair of engagement arms extending along a single arm axis, and a connecting member including a coupling aperture. In addition, the valve retainer assembly includes a keeper that further includes a keeper axis, and a connecting shaft. The connecting shaft of the keeper is received within the coupling aperture such that the keeper axis extends in a direction that is perpendicular to the arm axis.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: August 17, 2021
    Assignee: National Oilwell Varco, L.P.
    Inventors: Justin Wade Erwin, Christopher Eugene Robinson, Daniel Alan Senechal
  • 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.
  • 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
  • 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
    Inventors: Woon Yung Lee, Ying Xue, Yun Cai
  • 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
  • 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
  • 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
  • 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
    Inventors: Awade Badafem, Shao Peng Mo, Min Li, Jin Jin Wu
  • 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
    Inventors: Seseok Seol, Bumdong Sa
  • 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
    Inventor: William Michel
  • 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
  • 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
  • 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
    Inventors: Steven C. Gray, Robert D. Chase, Larry D. Talbott, Scott E. Stayton, K. Lynn Doughty
  • 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
  • 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
  • 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
  • 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