Patents Examined by F. Daniel Lopez
  • Patent number: 11193512
    Abstract: There are disclosed a method and a lifting mechanism for actively damping in mobile working machines vibrations which may occur as a result of raised attachments during travel. The method or the lifting mechanism has a prediction or a predictor for estimating the future vibration. The prediction is preferably carried out with a recursive least squares algorithm. The mobile working machine may, for example, be a tractor.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 7, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Gernot Becker, Quang Huy Nguyen, Steffen Rose
  • Patent number: 11179164
    Abstract: A vacuum motor has a piston that linearly oscillates in the internal space of a housing. A gas outlet and a gas inlet (supplying ambient air) located in the housing terminate in the space between the piston and the housing rear side. The piston never covers the outlet or inlet. A valve body closes the inlet. A pestle moves within the housing between the piston and valve body. When the piston moves toward the rear side of the space, the valve body moves against the force of a spring and opens the inlet. The free cross-section of the opened inlet is at least equal in size to the free cross-section of the outlet. A surgical drive system, a medical lavage system, and a medical device for brushing, rasping or sawing of tissue or boneā€”all include the vacuum motor. Also disclosed is a method for operating the vacuum motor.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: November 23, 2021
    Assignee: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Thomas Kluge
  • Patent number: 11181131
    Abstract: A hydraulic system includes a first system discharge fluid tube that discharges fluid flowing through a first supply fluid tube, a second system discharge fluid tube that discharges fluid, a first control valve, and a second control valve connected to a second supply fluid tube, the first system discharge fluid tube, and the second system discharge fluid tube, configured to be switched between: a supply position that supplies fluid from the second supply fluid tube to the first supply fluid tube; a first stop position that stops supply of fluid from the second to the first supply fluid tube and supplies fluid from the first supply fluid tube to the first system discharge fluid tube; and a second stop position that stops supply of fluid from the second to the first supply fluid tube and supplies fluid from the first supply fluid tube to the second system discharge fluid tube.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: November 23, 2021
    Assignee: KUBOTA CORPORATION
    Inventor: Yuji Fukuda
  • Patent number: 11168712
    Abstract: A hydraulic assembly for an extendable lift arm assembly can include an extension cylinder, a leveling cylinder, a main control valve, a flow combiner/divider, and one or more flow-blocking arrangements. The main control valve can be configured to control commanded movement of the extension and leveling cylinders of the lift arm assembly. The flow combiner/divider can be configured to hydraulically link the extension cylinder with the leveling cylinder for synchronized operation of the extension cylinder and the leveling cylinder. The one or more flow-blocking arrangements can be configured to restrict flow from rod or base ends of the leveling or extension cylinders during commanded extension or retraction of the leveling and extension cylinders, or in the absence of commanded movement of the leveling and extension cylinders, to maintain synchronized orientation of the leveling and extension cylinders.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 9, 2021
    Assignee: CLARK EQUIPMENT COMPANY
    Inventors: Kevin Zent, David Glasser, Scott LaCoe, Daniel Krieger, Matthew Kaldor
  • Patent number: 11168710
    Abstract: A control apparatus for supplying at least one hydraulic consumer with fluid has a variable displacement pump (10) controlled by a load-sensing pressure (LS). For a case-by-case increase in the volume flow in the supply of fluid (22) to the hydraulic consumer, the load-sensing pressure (LS) is passed via a control line (28) to a control circuit (2) that ensures the increase in the supply (22) by connecting in a constant-displacement pump (16) as soon as an operator calls for the relevant function by operating the control circuit (2).
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 9, 2021
    Assignee: HYDAC SYSTEMS & SERVICES GMBH
    Inventors: Heinz-Peter Huth, Marc Anton
  • Patent number: 11168707
    Abstract: A control device for an agricultural vehicle having a spray boom assembly for spreading material, such as fertilizer, plant protection products or seeds includes a control unit and at least two pressure control valves used for controlling an inclination of the spray boom assembly and connected to the control unit. Each pressure control valve has assigned thereto a check valve and a pressure sensor, the check valve being arranged between the pressure sensor and the pressure control valve. An agricultural vehicle and a method for operating the agricultural vehicle are arranged to spread material, such as fertilizer, plant protection products or seeds.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: November 9, 2021
    Assignees: Amazonen-Werke H. Dreyer SE & Co. KG, Hydac Systems & Services GmbH
    Inventors: Frank Grosse Prues, Georg Komma, Patrick Krupp, Timo Kiefer, Peter Kohl
  • Patent number: 11168789
    Abstract: This unique and novel exemplary embodiment of a high-volume diaphragm securement apparatus is related to a device for securing high-volume diaphragms that vary in size above the pressure chamber of a high-volume double diaphragm pump. The exemplary embodiment is comprised of a pair of pressure chambers, each providing an enlarged upper wall section, and a pair of corresponding geometrically adaptive retainer plates. Each retainer plate provides the ability to be customized with one or more notches such that they each can be installed on a variety of diaphragm pumps.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: November 9, 2021
    Inventor: Douglas D. Myers
  • Patent number: 11162239
    Abstract: A hydraulic drive system includes a hydraulic pump, a boom-dedicated control valve, a turning-dedicated control valve, a boom-dedicated operation unit, a turning-dedicated operation unit, and a driving control unit.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 2, 2021
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Akihiro Kondo, Hideyasu Muraoka, Jun Umekawa
  • Patent number: 11162243
    Abstract: A remote controlled demolition robot (10) comprising a controller (17) and at least one actuator (12) controlled through a hydraulic system (400) comprising at least one valve (13a) and a hydraulic gas accumulator (440), wherein the controller (17) is configured to determine a fluid flow in the hydraulic system (400), determine if the determined fluid flow in the hydraulic system is above a first threshold, and if so discharge the accumulator (440) to provide power to the actuator (12); and determine if the determined fluid flow in the hydraulic system is below a second threshold, and if so charge the accumulator (440) for buffering power in the hydraulic system (400).
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: November 2, 2021
    Assignee: HUSQVARNA AB
    Inventor: Tommy Olsson
  • Patent number: 11162514
    Abstract: A fluid power system comprises a pump with multiple independently variable outlets, each of which is capable of delivering fluid in individually controllable volume units and a plurality of hydraulic loads. A system of switching valves is configured to create fluid connections between the pump outlets and the loads. A control system commands both the pump and the switching valves, so as to create valve state combinations to satisfy load conditions as demanded by an operator. The number of pump outlets connected to one or more of the loads is changeable to satisfy the flow required of the load due to the operator demand, each pump outlet being commanded to produce a flow depending on the status of other outlets connected a load to which the outlet is connected and the operator demand for that load.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 2, 2021
    Assignees: Artemis Intelligent Power Ltd., Danfoss Power Solutions ApS
    Inventors: William Hugh Salvin Rampen, Niall James Caldwell, Uwe Bernhard Pascall Stein, Pierre Joly, Michael Richard Fielding
  • Patent number: 11162566
    Abstract: A torque converter includes a cover, an impeller including an impeller shell connected to the cover, a turbine including a turbine shell and at least one turbine blade fixed to the turbine shell, a seal plate, wherein the seal plate located axially between the cover and the turbine shell, and a pilot hub connected to the seal plate utilizing a spline connection.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 2, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Long Souers
  • Patent number: 11156237
    Abstract: A system and method configured to direct the braking energy from a high-pressure port at the motor side of a hydraulic circuit to emergency steering, braking, accumulator(s) charging, and/or various work functions. The system and method are also configured to return hydraulic fluid back to the same high-pressure port when the motor is running as a pump.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: October 26, 2021
    Assignee: APPLIED INDUSTRIAL TECHNOLOGIES, INC.
    Inventors: Wenling Babbitt, W. E. Hoffner, III
  • Patent number: 11149758
    Abstract: A control arrangement (5) of a hydraulic system (1) is provided, said control arrangement (5) comprising a supply port arrangement having a high pressure port (6) and a low pressure port (7), a working port arrangement having two working ports (8, 9), a first valve (10) arranged between said high pressure port (6) and said working port arrangement (8, 9), a second valve (11) arranged between said low pressure port (7) and said working port arrangement (8, 9). Such a control arrangement should enhance the control of a hydraulic system.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 19, 2021
    Assignee: DANFOSS POWER SOLUTIONS APS
    Inventors: Frede Callesen, Dirk Wroblewski
  • Patent number: 11149755
    Abstract: A hydraulic system for powering a winch assembly of a work machine includes a hydraulic reservoir, a pump, a cooling system, a first path of travel, and a second path of travel. The first path of travel is disposed between the pump and the cooling system, and the winch assembly is powered by the hydraulic fluid moving along the first path of travel. The second path of travel is disposed between the pump and the cooling system. When the winch assembly is in an active condition, a first valve is in an open position such that the hydraulic fluid moves along the first path of travel and through the cooling system. When the winch assembly is in an idle condition, a second valve is in an open position such that the hydraulic fluid moves along the second path of travel and through the cooling system.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Caterpillar Inc.
    Inventors: Timothy L. Hand, Christopher M. Gruel
  • Patent number: 11149763
    Abstract: A hydraulic actuator includes a cylinder, a pump, an electric motor and a central block. The mechanism or the rotating parts of the pump are directly installed in an interior of the block, and the drive shaft of the pump is correspondingly mounted in walls or in covers of the block.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: October 19, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Christian Markert, Emil Hanauer, Johannes Schwacke, Oleg Stefanjuk
  • Patent number: 11149764
    Abstract: The invention relates to a hydraulic cylinder comprising a body (1) having a wall (3) that defines a cylindrical cavity (2), with a cylindrical cavity axis (X), in which a piston (4) is movably mounted, said piston (4) separating said cylindrical cavity (2) into two tight chambers (5, 6) that are isolated from each other, the wall (3) of the body comprising at least two passages (7, 8) for introducing or discharging a fluid into each of said two chambers (5, 6). The cylinder also comprises two end walls (17, 18) and a rigid rod (32) which is secured to the piston (4) and coaxial with the cylindrical cavity (2), said rod (32) passing through a passage opening (20) provided in one of the two end walls (17, 18). The cylinder is characterised in that it comprises a position sensor (38) comprising a sensor head (39), a sensor rod (40) which is secured to the sensor head (39) and around which a magnet (41) is fitted, and a connector (42) connected to said sensor head (39).
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: October 19, 2021
    Assignee: Hydraulique Production Systems
    Inventor: Jose Rodrigues Da Costa
  • Patent number: 11143175
    Abstract: A pressure booster constituting a cylinder apparatus is provided with a first piston and a second piston that are coupled to each other by a rod. A connection member provided to the second piston is configured so as to be displaceable from a connection position to a blocking position as a result of the connection member making contact with a cylinder body when the second piston is displaced in a direction where a boosting chamber contracts, and so as to be displaceable from the blocking position to the connection position as a result of the connection member making contact with the cylinder body when the second piston is displaced in a direction where the boosting chamber expands.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 12, 2021
    Assignee: SMC CORPORATION
    Inventors: Hiroyuki Asahara, Kazutaka Someya
  • Patent number: 11131192
    Abstract: A cylinder actuator includes a body assembly and a piston assembly. The body assembly includes a first cylinder nested concentrically within a second cylinder. The piston assembly slides linearly within the first and second cylinders. The piston assembly includes a first piston assembly end and a second piston assembly end. The first piston assembly end includes first and second pistons. The first piston moves within the first cylinder. The second piston moves within the second cylinder. The piston assembly includes first and second piston rods. The first piston rod extends from the first piston through a first end of the first cylinder. The second piston rod extends from the second piston through a first end of the second cylinder. The piston rods are joined at the second end of the piston rod assembly located outside of the first and second cylinders.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: September 28, 2021
    Assignee: Vanderbilt University
    Inventors: Michael Goldfarb, Harrison Bartlett, Beau Johnson
  • Patent number: 11125331
    Abstract: A piston pump includes a frame, a housing configured to be coupled to the frame via a fastener, an annular liner defining a chamber configured to receive a piston of the piston pump, and an annular liner lock flange circumferentially surrounding the annular liner. The annular liner lock flange includes a radially-extending portion configured to be positioned within a respective counterbore of the frame and a respective counterbore of the housing while the housing is coupled to the frame via the fastener to block relative movement between the liner lock flange, the frame, and the housing.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 21, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Jaakko Jalmari Halmari, David Scott Crew, Jr., Jeffrey Boardman Pruitt, Ban Tran
  • Patent number: 11124066
    Abstract: An auxiliary power unit system for mobile service vehicles is provided that can provide DC power to DC-powered equipment. The system attaches to the power take-off port of the transmission and can provide power to the DC-powered equipment without idling the engine of the mobile service vehicle, thereby reducing fossil fuel consumption and engine exhaust emissions.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: September 21, 2021
    Assignee: Airtek Systems Inc.
    Inventor: Darryl Weflen