Patents Examined by Daniel S Collins
  • Patent number: 10641298
    Abstract: A hydraulic control valve maintains the pressure at a control port at a desired percentage of the pressure at two other ports as the pressure at the two other ports varies. Upon the pressure at the control port reaching a predetermined pressure setting, a fourth port will open to maintain the control port at a second desired percentage of the two other ports.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 5, 2020
    Assignee: HydraForce, Inc.
    Inventors: Travis Schmidt, Scott Parker, Joel Mekkes
  • Patent number: 10641257
    Abstract: A reciprocating piston machine includes a first cylinder and a first piston assigned to the first cylinder and a second piston assigned to the first cylinder or a second cylinder. The reciprocating piston machine further includes a crankshaft having an eccentric crankshaft journal and a drive shaft coupling configured for coupling a drive shaft of a drive motor for driving the crankshaft, a first connecting rod configured to deflect the first piston and configured to be moved by the eccentric crankshaft journal, and a second connecting rod configured to deflect the second piston and configured to be moved by a bearing pin. The reciprocating piston machine additionally includes at least one of a first elastomer element arranged between the bearing pin and the first connecting rod and a second elastomer element arranged between the bearing pin and the second connecting rod.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 5, 2020
    Assignee: WABCO EUROPE BVBA
    Inventors: Klaus Bredbeck, Eugen Kloos, Uwe Stabenow
  • Patent number: 10626896
    Abstract: The present inventors have recognized that contaminants in hydraulic fluid in a hydraulic system of an off-highway implement can be efficiently filtered by a filtration system of the source of hydraulic power by conducting an operation which controls existing valves for precisely operating cylinders of the system to return the fluid to the source of hydraulic power through a connector with little or no fluid going through cylinders. Such an operation can be advantageously executed immediately following connection of the source of hydraulic power to the manifold of the implement.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: April 21, 2020
    Assignee: CNH Industrial America LLC
    Inventors: Michael W. Freisleben, Jerry L. Brinkley, Joshua M. Guarino
  • Patent number: 10619726
    Abstract: A hydraulic system (1) of an automatic transmission of a motor vehicle includes a hydraulic pump (2) powered by a drive engine for supplying pressure to the hydraulic system (1). A hydraulic reservoir (10) by which, when the drive engine is at rest, a pressure drop in a main pressure circuit (7) of the hydraulic system (1) can at least be delayed. The hydraulic reservoir (10) is connected to the main pressure circuit (7) by way of an orifice (14) or a throttle.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 14, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Alexander Paul, Bernd Lutz
  • Patent number: 10619653
    Abstract: An electrohydraulic linear actuator comprises a housing consisting of a tubular profile, which forms a housing shell and in which there is a plurality of cavities, and which is closed at the ends by two housing covers fitted to the ends of the housing shell. A first cavity of the tubular profile forms a cylinder which forms the hydraulic cylinder of a double-acting synchronous cylinder and a second cavity which extends parallel to the first cavity accommodates a hydraulic unit in addition to the hydraulic cylinder, and a hydraulic oil reservoir is formed in said second cavity. Two working chambers of the hydraulic cylinder are separated from each other by a piston unit. The housing has at least one through-hole for a coupling element which forms a mechanical interface with the piston unit. The electric motor of the hydraulic unit is configured as a brushless outrunner motor.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 14, 2020
    Assignee: HAWE ALTENSTADT HOLDING GMBH
    Inventors: Matthias Grupp, Peter Roider
  • Patent number: 10604916
    Abstract: A shovel may has a first pump that discharges a first hydraulic oil, a second pump that discharges a second hydraulic oil, a pump/motor that discharges a third hydraulic oil, an arm cylinder that at least the first hydraulic oil can flow into, and a boom cylinder that at least the second hydraulic oil can flow into. When the arm cylinder and the boom cylinder operate simultaneously, the arm cylinder is actuated by the first hydraulic oil or the third hydraulic oil, and the boom cylinder is actuated by the second hydraulic oil.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: March 31, 2020
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Eisuke Matsuzaki, Hiroshi Ishiyama, Koichiro Tsukane, Kazushi Ishida
  • Patent number: 10590927
    Abstract: A lubricating sealing system for a fluid end includes a fluid end, a sleeve, a plunger, and a lubrication system. The sleeve is coupled to an internal surface of the fluid end. The plunger reciprocates in a linear manner through the sleeve and into a pressure chamber of the fluid end. The lubrication system is in communication with the plunger and configured to provide lubricant through an interior of the plunger for routing to surfaces between the plunger and the sleeve. The lubricant is pressurized and moved via the reciprocating of the plunger and create a positive pressure on the lubricant over the pressures experienced in the pressure chamber of the fluid end. The positive pressure creates a barrier and pushes away contaminants from the plunger seals thereby avoiding wash out.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: March 17, 2020
    Assignee: ST9 GAS AND OIL, LLC
    Inventor: Chris Buckley
  • Patent number: 10590627
    Abstract: The invention discloses a hydraulic control system of a leveling hydraulic cylinder of a loading head, characterized by comprising a hydraulic pump, a two-position three-way electronic control reversing valve, a three-position four-way electronic control reversing valve, a three-position four-way cam valve and a hydraulic cylinder. The invention not only can perform leveling by using the electric control system, but also comprises the hydraulic cam valve controlling the hydraulic cylinder for self-leveling, and the two leveling manners can be independently used or switched mutually, thus achieving a better leveling effect.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 17, 2020
    Assignee: NANJING FREETECH ROAD MAINTENANCE VEHICLE MANUFACTURING CORPORATION
    Inventors: Weibin Shi, Hai Zou, Huiwen Wang
  • Patent number: 10584725
    Abstract: A method of setting an actuator capable of accurately detecting a position of a piston using a plurality of sensor units is provided. The method includes a detection value acquisition step of moving a piston in a direction of an axis inside a cylinder and acquiring a detection value from each of a first sensor unit and a second sensor unit for each position of the piston, and a controlling sensor unit-setting step of setting a controlling sensor unit that is used for control of a two-way piston from among the first sensor unit and the second sensor unit on the basis of the detection values obtained for the first sensor unit and the second sensor unit.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 10, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Itsuki Shimazaki, Yuichi Hidaka
  • Patent number: 10583543
    Abstract: Disclosed herein is an improved hydraulic torque wrench pump (HTWP) which utilizes a combined filtration system and cooling system for filtering and cooling substantially all the oil returned to the pump including from a hydraulic torque wrench. The hydraulic torque wrench pump includes an electric motor and one or more pumping elements arranged in a protective frame. The electric motor used in association with the hydraulic pump has a high-efficiency design that includes a high power to height ratio and yields efficiency in a range of 90% to 95%. A sealed oil tank is used for storing the oil. The sealed oil tank helps in restricting one or more impurities from entering and contaminating the oil.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 10, 2020
    Assignee: VP Sales and Manufacturing LP
    Inventors: Donald Tiskevics, Brent Hendricks
  • Patent number: 10563676
    Abstract: Apparatuses, systems and methods are provided for controlling one or more fluid actuated devices; e.g., actuators such as hydraulic cylinders. A method is provided, for example, involving actuation fluid, a first actuator and a second actuator. During this method, a quantity of the actuation fluid within the second actuator is pressurized using a quantity of the actuation fluid within the first actuator.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: February 18, 2020
    Assignee: VECNA ROBOTICS, INC.
    Inventor: Daniel Theobald
  • Patent number: 10562180
    Abstract: A fluidic robotic actuator configured to assume at least a neutral position, the fluidic robotic actuator includes a first and second plate defining respective planar portions that are disposed in parallel planes in the neutral position. The fluidic robotic actuator also includes a plurality of elongated bellows extending between the first and second plates, the bellows each having a central main axis that is parallel to the central main axis of the other bellows in the neutral position, the main axis of the bellows being perpendicular to the parallel planes of the first and second plates in the neutral position, the bellows being coupled to the first and second plates at respective first and second ends of the bellows.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 18, 2020
    Assignee: OTHER LAB, LLC
    Inventors: Maria J. Telleria, Jonathan B. Pompa, Peter S. Lynn, Kevin B. Albert, Gabriel F. Hein, Thomas F. Allen, Kevin C. Kemper, Saul Thomas Griffith
  • Patent number: 10563677
    Abstract: The subject matter of this specification can be embodied in, among other things, an articulated joint includes a first rotary actuator having a first housing defining a first arcuate chamber comprising a first cavity, and an arcuate-shaped first piston having a first radius of curvature and disposed in said first housing for reciprocal movement in the first arcuate chamber, a second rotary actuator having a second housing defining a second arcuate chamber comprising a second cavity, and an arcuate-shaped second piston having a second radius of curvature and disposed in said second housing for reciprocal movement in the second arcuate chamber, wherein a first radial side of the first piston relative to the first radius of curvature is in bearing contact with a first radial side of the second piston relative to the second radius of curvature at a contact point between the first axis and the second axis.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 18, 2020
    Assignee: Woodward, Inc.
    Inventors: Kamran Eftekhari Shahroudi, Barry Brinks, Brian Hoemke
  • Patent number: 10562260
    Abstract: A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract when the chamber is inflated with fluid (e.g., air or water). The actuator body can be cylindrical or flat. The actuator body can include a sensor layer formed of an elastic material including a microchannel filled with a conductive fluid to sense the expansion of the actuator body. The sensor layer can be configured to expand when the actuator body is inflated causing the electrical resistance of the conductive fluid to change. A sensor layer between the actuator body and restraining component can be used to measure changes in the contraction force of the actuator and a sensor layer outside of the restraining component can be used to measure changes in the length of the actuator.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: February 18, 2020
    Assignee: President and Fellows of Harvard College
    Inventors: Yong-Lae Park, Robert J. Wood, Jobim Jose Robinsantos, Eugene C. Goldfield
  • Patent number: 10556637
    Abstract: A bicycle operating device comprises a base member, an operating member, a hydraulic unit, an electrical switch, a wireless communicator, and a power supply. The base member includes a first end and a second end opposite to the first end. The operating member is pivotally coupled to the base member about a first pivot axis. At least part of the hydraulic unit is disposed closer to the second end than the first pivot axis when viewed from a first direction parallel to the first pivot axis. The power supply is electrically connected to the wireless communicator to supply electrical power to the wireless communicator. At least one of the wireless communicator and the power supply is at least partly disposed closer to the first end than the first pivot axis when viewed from the first direction.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 11, 2020
    Assignee: SHIMANO INC.
    Inventors: Atsushi Komatsu, Takafumi Nishino, Takehiko Nakajima
  • Patent number: 10557461
    Abstract: A drive device includes a housing forming a sump. A pump and motor are mounted on a center section having a porting system and a pair of ports with check plugs disposed therein. A bypass arm is engaged to one end of a bypass shaft external to the housing and rotates the bypass shaft to selectively cause engagement fingers to move each check plug to an open position. A housing projection is contacted by the bypass arm to selectively limit rotation thereof. The axes of rotation of a swash plate trunnion shaft, a pump input shaft and a motor output shaft may all be disposed in a single plane. The input shaft is supported by a housing bearing and an opening in the center section and is restrained from axial movement by the bearing and a thrust surface on the center section.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 11, 2020
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Jesse L. Probst, Eric S. Phanco, Joseph P. Niemerg, Shane A. Deters
  • Patent number: 10550861
    Abstract: A steering gear includes a housing defining a chamber. A piston divides the chamber into first and second chamber portions. The piston is moveable along a linear axis relative to the housing upon pressurization of fluid in one of the first and second chamber portions. A pressure relief vents pressurized fluid from one of the first and second chamber portions to one other of the first and second chamber portions upon movement of the piston to a predetermined position. The pressure relief assembly includes a first valve at a first end of the pressure relief assembly and a second valve at a second end of the pressure relief assembly. The pressure relief assembly is axially movable relative to the piston to adjust the position of the first valve and the second valve relative to the piston.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: February 4, 2020
    Assignee: TRW AUTOMOTIVE U.S. LLC
    Inventor: Benjamin W. Schoon
  • Patent number: 10539212
    Abstract: A flange for a torque converter, comprising a first sub-assembly that includes a first hole and second hole located along the first sub-assembly and wherein the first and second hole are configured to facilitate movement of a first pressure path from a transmission input shaft to a piston. The flange for the torque converter also includes a second sub-assembly that includes one or more welds that join a first contact-side of the second sub-assembly to the first sub-assembly, wherein a gap is defined between an area where the second sub-assembly is joined to the first sub-assembly.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 21, 2020
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Christopher Welch
  • Patent number: 10539164
    Abstract: A hydraulic actuator includes a hollow tube that has a first opening at a first end of the hollow tube and that has a second opening at a second end of the hollow tube. The hollow tube contains hydraulic fluid. A moveable magnet moves within hollow tube as a result of a magnetic field within the hollow tube. A magnetic field source located outside the hollow tube creates the magnetic field within the hollow tube. When the moveable magnet moves to the first end of the hollow tube, a first piston pushes hydraulic fluid out of the first opening. When the moveable magnet moves to the second end of the hollow tube a second piston pushes hydraulic fluid out of the second opening.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: January 21, 2020
    Inventor: William Davis Simmons
  • Patent number: 10539163
    Abstract: A hydraulic drive unit for use in a vehicle or other application incorporates a motor connected to a pump through a porting system and an output shaft driven by the motor. A mechanical brake is used to brake the motor, while a valve provides a hydraulic brake for preventing flow between the hydraulic motor and the hydraulic pump. A brake actuator is connected to both the mechanical brake and the hydraulic brake, whereby actuation of the brake actuator causes both the mechanical brake and the hydraulic brake to be actuated.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: January 21, 2020
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Thomas J. Langenfeld