Patents Examined by Thomas E. Lazo
  • Patent number: 10550859
    Abstract: In this negative-pressure booster, one of a negative-pressure valve seat and a negative-pressure valve section has, provided thereto, one or more first protruding sections abutting against the other of the negative-pressure valve seat and negative-pressure valve section, at a site other than a first annular abutment site, in an initial state where an operational force has not been applied to an input member; and/or one of an atmospheric valve seat and an atmospheric valve section has, provided thereto, one or more second protruding sections abutting against the other of the atmospheric valve seat and atmospheric valve section, at a site other than a second annular abutment site, in the initial state where an operational force has not been applied to the input member.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: February 4, 2020
    Assignee: ADVICS CO., LTD.
    Inventor: Kimiyasu Suzuki
  • Patent number: 10550868
    Abstract: A hydraulic system for a working machine is a load sensing system and includes a hydraulic actuator for movement of an implement and a control valve having an inlet valve and an outlet valve for controlling the flow of hydraulic fluid from a pump to the hydraulic actuator and for draining hydraulic fluid from the hydraulic actuator, respectively. The hydraulic system also includes an arrangement for determining the load on the hydraulic actuator. The hydraulic system further includes a valve for disconnecting the flow of hydraulic fluid from the pump to the hydraulic actuator, while allowing another flow of hydraulic fluid to the hydraulic actuator, provided that the determined load on the hydraulic actuator exceeds a threshold value.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: February 4, 2020
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Bo Vigholm
  • Patent number: 10544861
    Abstract: A hydrostatic transmission system includes a fluid-driven motor and an integrated pump assembly connected to the fluid-driven motor to provide fluid to operate the fluid-driven motor. The integrated pump assembly includes a pump with at least one fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The hydrostatic transmission system also includes a controller that establishes at least one of a speed and a torque of the at least one prime mover to exclusively adjust at least one of a flow and a pressure in the hydrostatic transmission system to an operational set point.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: January 28, 2020
    Assignee: Project Phoenix, LLC
    Inventor: Thomas Afshari
  • Patent number: 10544810
    Abstract: A linear actuator system includes a linear actuator and at least one integrated pump assembly connected to the linear actuator to provide fluid to operate the linear actuator. The integrated pump assembly includes a pump with at least one fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The linear actuator system also includes a controller that establishes at least one of a speed and a torque of the at least one prime mover to exclusively adjust at least one of a flow and a pressure in the linear actuator system to an operational set point.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: January 28, 2020
    Assignee: Project Phoenix, LLC
    Inventor: Thomas Afshari
  • Patent number: 10543823
    Abstract: In order to minimize spreading, without additional parts, of connecting bolts of a pneumatic brake booster in a manner which is brought about by the deformation of a bearing surface on a booster housing before and during its assembly on a provided vehicle body part, it is proposed that the bearing surface is assigned a planar surface section in an immediately adjacent manner which is configured so as to be plane-parallel with respect to the bearing surface and so as to be axially inwardly recessed on the booster housing with a circumferential step.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 28, 2020
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Jürgen Faller, Juliano Muniz, Gustavo Ladeira, Fabio Gaiotto, Marcelo Ideriha, Fabio Araujo
  • Patent number: 10539131
    Abstract: An electro hydrostatic actuator comprising a hydraulic pump driven by an electric motor to supply hydraulic fluid to a hydraulic actuator, the pump comprising an inlet and an outlet for the hydraulic fluid and an active flow path configured therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet. The pump further comprises a bypass flow path configured to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet. The hydraulic pump is a rotary piston pump comprising a pump barrel driven to rotate by a motor shaft.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 21, 2020
    Assignee: GOODRICH ACTUATION SYSTEMS SAS
    Inventors: Emmanuel Lesage, Jean-Michel Perrochat
  • Patent number: 10532723
    Abstract: A hydraulic device for controlling braking for farm tractors, earthmovers and like machines, comprises a master cylinder and brake booster. A piston of the brake booster defines first and second chambers which, under rest conditions, are in communication and, during braking, are cut off with the first chamber being put in communication with a discharge chamber of the master cylinder. The piston of the master cylinder is driven by a drive piston shaped to define with a plunger of the piston of the brake booster a hollow space through which the first chamber communicates with either the second chamber or the discharge chamber, depending on device operating conditions. In the plunger, a seat for a gasket-valve is arranged to cooperate with the drive piston, during braking, to prevent fluid leakage between the second and the first chamber as a consequence of the sliding of the drive piston caused by braking.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: January 14, 2020
    Assignee: VHIT S.P.A.
    Inventor: Leonardo Cadeddu
  • Patent number: 10533304
    Abstract: A system and method for the controlled lowering and lifting of a load are disclosed. The system and method may include operating a work machine having a hydraulic system including a hydraulic actuator for supporting a load, a first control valve in fluid communication with the actuator, and a controller for operating the first control valve. In one embodiment, the controller includes a first algorithm for operating the first control valve in a load lowering operation. When an operational fault within the hydraulic system is detected, the controller can be configured to enter into a safe lowering mode. In the safe lowering mode, the first algorithm is disabled and a pulse width modulation (PWM) current is sent from the controller to the first control valve. A user interface is provided to allow an operator to control the PWM current duty ratio to allow the load supported by the actuator to be lowered.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: January 14, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Michael Berne Rannow, Vishal Vijay Mahulkar
  • Patent number: 10526767
    Abstract: Provided is a construction machine allowing regeneration of a return hydraulic fluid at the time of both a boom raising operation and a boom lowering operation with a small number of valves, making it possible to secure a satisfactory operability at the time of both the boom raising operation and the boom lowering operation.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 7, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Seiji Hijikata, Kouji Ishikawa, Shinya Imura
  • Patent number: 10527033
    Abstract: A diaphragm for use in a pump is provided. The diaphragm includes a flexible disc-shaped body having a first surface and an outer edge. The flexible disc-shaped body is made of an elastomer material. The fabric is applied on the first surface of the flexible disc-shaped body. And the fabric is composed of woven aramid based fibers.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 7, 2020
    Assignee: Ingersoll-Rand Company
    Inventors: Mark Anthony Ezzo, Richard Kenneth Bean
  • Patent number: 10526071
    Abstract: The hydraulic system can include a control member that is operatively coupled to a member. The control member can include a hydraulic control member and an integrated inerter. Hydraulic fluid at variable pressures is moved through the hydraulic system by pumps. The hydraulic system can be configured for hydraulic fluid returning from the control member to the first pump to be delivered to the second pump prior to reaching the first pump. A dual-spool valve is positioned between the pumps and the control member to control the flow of the hydraulic fluid. The dual-spool valve is movable to move the hydraulic fluid at variable pressures into and out of first and second chambers of the control member. The dual spool valve can also be configured to operate the control member when a spool is not operational.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: January 7, 2020
    Assignee: THE BOEING COMPANY
    Inventors: Michael Thomas Fox, Eric Anton Howell, Jeffrey M. Roach
  • Patent number: 10525953
    Abstract: A pneumatic brake booster including a booster housing having at least one housing shell. The housing shell is designed to be substantially pot-shaped with a center axis, a base portion and a lateral portion, and the base portion has a curved or conical wall region. In order to offer a brake booster by which it is possible to cost-effectively realize improved adaptability to customer- and application-specific requirements with respect to the spatial connection arrangement, at least one flattened surface area is formed in a radial outer region of the base portion, is designed to be elongate in the circumferential direction and has, at its radial outer edge, at least two notches which are arranged with respect to one another in a defined grid pattern with a circle angle.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: January 7, 2020
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Rene Peter Eberhart, Jürgen Faller
  • Patent number: 10525955
    Abstract: A check valve of this negative pressure-type booster device is provided with: a cylindrical section that is integrally formed with a shell disposed on one side, communicates with a connection pipe, and is formed in a cylindrical shape protruding toward the inside of a housing; and a valve body section that is disposed inside the cylindrical section, and is axially fitted, within the cylindrical section, to the cylindrical section such that air is permitted to flow from a negative pressure chamber to the connection pipe while the air is prohibited from flowing from the connection pipe to the negative pressure chamber.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 7, 2020
    Assignee: ADVICS CO., LTD.
    Inventors: Yoji Inoue, Nan Li
  • Patent number: 10518762
    Abstract: An electric booster may include: a motor part configured to be driven by power applied thereto; a body part mounted and fixed onto the motor part; a cylinder part coupled to the body part; a screw part connected to the motor part and rotated; a nut part embedded in the body part, and screwed to the screw part so as to linearly move; a first piston part constraining an end of the screw part, and moved to the cylinder part while being pressed by the nut part; a first elastic part supporting the first piston part; a second piston part supported by the first elastic part; and a second elastic part supporting the second piston part.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: December 31, 2019
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jong Sung Kim
  • Patent number: 10519989
    Abstract: A safe hydraulic drive system and process, comprising at least one first cylinder chamber and a second, separate cylinder chamber which are connected to one another via a connecting line to form a fluid-filled hydraulic circuit, and a hydraulic drive for conveying the fluid from one cylinder chamber, via the connecting line, into the other cylinder chamber in which the connecting line is arranged. The connecting line has at least one parallel system, between the hydraulic drive and one of the two cylinder chambers, including at least one first sub-connection with at least one first stop valve and a second sub-connection with a baffle arranged therein.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 31, 2019
    Assignee: MOOG GmbH
    Inventors: Werner Handle, Reiner Kohlhaas, Tim Reidl
  • Patent number: 10519950
    Abstract: A closure element for a fluid end assembly that has two or more recessed grooves formed in its outer surface. The grooves are axially offset. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of axially offset grooves in a single closure element, a kit may be formed from two or more otherwise identical closure elements, each with a single recessed groove at a different axial position. Another closure element has a series of ledge-like surfaces defining spaces within which a seal may be received. One outer surface surrounds one or more of the other surfaces. A seal is placed in one and only one of the spaces. As wear occurs, the seal is relocated to one of the other spaces.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: December 31, 2019
    Assignee: Kerr Machine Co.
    Inventor: Kelcy Jake Foster
  • Patent number: 10519923
    Abstract: Systems store energy mechanically at a first time and extract the energy at a later time. When excess electricity from renewable sources or during off-peak periods is available, a pump directs a working liquid (L) to pressurize a gas (G) that is confined within a pressure vessel. When electricity from renewable sources is not available or during periods of peak demand or pricing, the pressurized gas (G) directs the working liquid (L) through a hydropower turbine. The turbine drives a generator through a mechanical coupling to provide electricity for powering a load. In addition, the system can leverage (take) any waste heat as the input to boost the efficiency of the system. The described systems function at ground level and are modular and scalable in capacity.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: December 31, 2019
    Assignee: UT-Battelle, LLC
    Inventors: Ayyoub Mehdizadeh Momen, Kyle J. Gluesenkamp, Omar A. Abdelaziz, Edward A. Vineyard, Ahmed Abu-Heiba, Adewale O. Odukomaiya
  • Patent number: 10514030
    Abstract: A wear sleeve is removably mounted on a piston rod. The piston rod includes a piston cap, a piston rod body, and a piston head, with at least one of the piston cap and the piston head being removable from the piston rod body. The wear sleeve is disposed over the piston rod body and prevents the piston rod from contacting dynamic seals disposed within a pump. The wear sleeve is mechanically secured in a cylindrical recess on the piston rod between a cap shoulder of the piston cap and a head shoulder of the piston head.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: December 24, 2019
    Assignee: Graco Minnesota Inc.
    Inventors: Jeromy D. Horning, Steve J. Wrobel
  • Patent number: 10514039
    Abstract: In a hydraulic control device, when the rotational speed of an electric motor is an appropriate rotational speed, a first spool is in a first position, in which communication between a sixth port and a second port is blocked. When the rotational speed of the electric motor exceeds the appropriate rotational speed, the first spool is in a second position, in which the sixth port and the second port are placed in communication.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 24, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yasuyuki Ichimura, Shigeji Nakano, Satoshi Uchino
  • Patent number: 10514050
    Abstract: A double-acting hydraulic cylinder has a first cylinder housing and a piston guided in the first cylinder housing, wherein a first pressure chamber and a second pressure chamber are provided in the first cylinder housing and are additionally separated from one another by the piston. A first connector serves to feed a hydraulic liquid to the first pressure chamber, and a second connector serves to feed the hydraulic liquid to the second pressure chamber. A second cylinder housing surrounds the first cylinder housing at least in one section. The first connector and the second connector may be arranged at an end of the double-acting hydraulic cylinder which faces away from the second pressure chamber. The second pressure chamber may be loaded with the hydraulic liquid via the section in which the second cylinder housing surrounds the first cylinder housing.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: December 24, 2019
    Assignee: MAQUET GMBH
    Inventor: Rolf Revenus