Patents Examined by Kenneth Bomberg
  • Patent number: 11326693
    Abstract: A piston assembly for a piston pump includes an actuator rod, a piston coupled to the actuator rod and configured to contact a radially-inner wall of a cylinder, and a piston support structure coupled to the actuator rod and configured to contact the radially-inner wall of the cylinder. A fluid channel extends through the actuator rod and the piston support structure, and the fluid channel is configured to deliver a lubricating fluid to an annular space positioned between the piston and the piston support structure along an axial axis of the piston assembly.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: May 10, 2022
    Inventors: Michael Raymond Netecke, Ban Q. Tran
  • Patent number: 11319923
    Abstract: A vortex generator for a wind turbine blade includes: a platform portion to be fixed to a surface of the wind turbine blade; and at least one fin erected on the platform portion. The platform portion includes marks disposed on a pair of opposite positions in an outer edge region of the platform portion and indicating orientation of the vortex generator.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: May 3, 2022
    Inventors: Koji Fukami, Daisuke Wakata, Yuji Yatomi, Takashi Yamamura, Yoshihiro Fujioka
  • Patent number: 11319922
    Abstract: A connecting joint for attaching a wind turbine blade to a rotor hub includes an insert configured to be coupled to the wind turbine blade. The insert includes a main body having an outer surface configured to interface with the blade, a first tubular extension extending from the main body and having inner and outer surfaces configured to interface with the blade, and a second tubular extension extending away from the main body and having inner and outer surfaces configured to interface with the blade. A wind turbine blade having such a connecting joint is also disclosed. Additionally, a method of making a wind turbine blade including the connecting joint is disclosed.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 3, 2022
    Assignee: Vestas Wind Systems A/S
    Inventor: Anton Bech
  • Patent number: 11306750
    Abstract: This invention relates to a versatile rotary vane actuator module and a thermal actuation system with universal adaptable shafts/installation and differential rotary and turbocharger mechanisms to actuate 0-360 degree or more for complicated, precision, extreme rotary applications like robotic excavators, airplanes, heavy or weapon machinery, satellite receivers or wind turbine position controls, remote pipeline valves, HIPP or subsea valves and BOP controls, the thermal actuation system includes three thermal elements (1) pressure sources (2) volume vessel (3) heat sources, the vane actuator comes with redundant edge seals and corner seal rings to minimize or eliminate the inherent leakage and the differential rotation mechanism and the turbocharger with a dynamic porting system to expand the rotation 360 degree more efficiently, the actuator module includes a least one housing assembly, at least one driver assembly and at least one dynamic embedded porting system.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 19, 2022
    Inventor: Jianchao Shu
  • Patent number: 11306746
    Abstract: A hydraulic system for a working machine includes a hydraulic actuator having a first fluid chamber and a second fluid chamber, an accumulator, an outputting fluid tube to output an operation fluid, and a switching valve to be switched between a first position and a second position. The first position allows the first fluid chamber and the second fluid chamber to be communicated with the outputting fluid tube and thereby allowing a floating operation. The second position allows the first fluid chamber and the accumulator to be communicated with each other, allows the second fluid chamber and the outputting fluid tube to be communicated with each other, and thereby allows an anti-vibration operation.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: April 19, 2022
    Inventors: Yuji Fukuda, Keigo Honda, Ryosuke Kinugawa, Ryuki Nishimoto, Yuji Yamashita, Daisuke Sakurai
  • Patent number: 11286965
    Abstract: A fluid actuator arrangement comprises a piston rod member, at least two cylinders each said cylinder having a piston body, and a clamping mechanism associated to each cylinder. Each clamping mechanism is arranged to engage and disengage the piston body of the cylinder to the piston rod member. The fluid actuator arrangement comprises further a control element arranged to control a back and forward movement of the respective piston body so that forward movement is slower than the backward movement and to control the movement of the respective piston bodies in relation to each other such that at least one piston body is always moving forward and such that an overlap exists wherein at least two of the piston bodies are moving forward simultaneously during a cycle.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: March 29, 2022
    Assignee: SAAB AB
    Inventors: Magnus Landberg, Martin Hochwallner
  • Patent number: 11280199
    Abstract: A rotor blade for a compressor of a gas turbine engine includes an airfoil. The airfoil has a span that extends from 0% at the root to 100% at the tip and a mean camber line that extends from a leading edge to a trailing edge. The airfoil has a location of local maximum thickness defined as a ratio of a first arc distance along the mean camber line between the leading edge and a position of the local maximum thickness to a total arc distance along the mean camber line from the leading edge to the trailing edge. A value of the ratio increases from the root to a first position value, decreases from the first position value to a second position value and increases from the second position value to the tip. The first position value is at a spanwise location within 20% to 50% of the span.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: March 22, 2022
    Inventors: Michael R. McNamee, Nick Nolcheff, Yoseph Gebre-Giorgis, John A. Gunaraj, Jeffrey Hayes, Constantinos Vogiatzis
  • Patent number: 11268391
    Abstract: A stator vane segment for a turbomachine is provided, in particular for a gas turbine, in particular for a turbine stage of a gas turbine. The stator vane segment has at least one stator vane and at least one shroud, in particular an outer shroud, having at least one first profile disposed on the shroud and adapted for attachment of the stator vane segment to the turbomachine casing, the profile extending in the circumferential direction at least partially over a circumferential length of the stator vane segment along the shroud of the stator vane segment and having at least one functional surface which extends at least partially in the axial direction and in the circumferential direction, at least one functional surface of at least one profile having at least two different curvatures in the circumferential direction in at least one radial plane perpendicular to an axis of rotation of the turbomachine in at least one temperature range below a defined operating temperature of the turbomachine.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: March 8, 2022
    Assignee: MTU Aero Engine AG
    Inventor: Bernd Kislinger
  • Patent number: 11267571
    Abstract: An aircraft can include a stacked propeller to generate lift during assent and descent. The stacked propeller includes a first propeller and a second propeller that co-rotate about an axis of rotation. In one embodiment, the blades are coupled to a rotor mast that contains an internal cavity. In one mode of operation, the first propeller and/or the second propeller can be stored in the internal cavity in order to reduce drag during flight. The aircraft can include one or more stacked propellers, such as a port propeller and a starboard propeller, which rotate in opposite directions during one or more modes of flight.
    Type: Grant
    Filed: November 3, 2018
    Date of Patent: March 8, 2022
    Assignee: Joby Aero, Inc.
    Inventors: Mark Moore, John Conway Badalamenti, Ian Villa, Adam Warmoth, David Josephson
  • Patent number: 11261862
    Abstract: A prime mover and a plurality of hydraulic actuators, a hydraulic machine having a rotatable shaft in driven engagement with the prime mover and comprising working chambers, a hydraulic circuit between working chambers of the hydraulic machine and the hydraulic actuators, each working chamber of the hydraulic machine comprising a low-pressure and high-pressure valves regulating the flow of hydraulic fluid between the working chamber and a corresponding low-pressure manifold and a high-pressure manifold. The hydraulic machine being configured to actively control the low-pressure valves of the working chambers to select the net displacement of hydraulic fluid by each working chamber on each cycle of working chamber volume, and thereby the net displacement of hydraulic fluid by the working chambers, responsive to a demand signal, wherein the apparatus further comprises a controller configured to calculate the demand signal in response to a measured property of the hydraulic circuit or actuators.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 1, 2022
    Inventors: Niall James Caldwell, Matthew Green, Jill MacPherson
  • Patent number: 11261583
    Abstract: To provide a traveling control mechanism and a traveling control method capable of controlling a traveling mechanism taking into consideration operation contents of a remote control valve. The problem is solved by a traveling control mechanism comprising a remote control valve (21, 22, 23, 24), a pressure adjusting solenoid valve (61, 62), a setting mechanism (70), and a controller (60). The traveling mechanism (8) allows a traveling speed to be switched between a high speed and a low speed in accordance with an operation amount of the remote control valve (21, 22, 23, 24). An HST circuit (30) is provided with a pump (31, 32) and a traveling motor (33), the pump (31, 32) connects to a pilot line (41, 42, 43, 44) allowing a hydraulic oil supplied from the remote control valve (21, 22, 23, 24) to flow therethrough, a pressure sensor (45) is attached to the pilot line (41, 42, 43, 44), and a rotation sensor (65) is attached to the traveling motor (33).
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 1, 2022
    Assignee: TAKEUCHI MFG. CO., LTD.
    Inventor: Tomonori Sato
  • Patent number: 11255347
    Abstract: Vibration damping devices and methods utilizing the same for damping vibrations in a fan. A vibration damping device for a fan, the fan having an inlet side of a frame and an exhaust side of the frame and the frame retains a fan mechanism. The vibration damping device includes a mass mT which may include either: a block with a total mass mT; or a finger guard and at least one resilient attachment member having a first spring characteristic, wherein resilient attachment member is configured to be connected to and retain the mass mT. The vibration damping device may be tunable to damp the vibration of fan by (a) varying the total mass mT of the block, or replacing the finger guard, and/or (b) replacing the at least one resilient attachment member with a second resilient attachment member having a second spring characteristic.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: February 22, 2022
    Assignee: Fortinet, Inc.
    Inventors: Zhi Hon Yang, Shenghua Jiang, Keqin Chen
  • Patent number: 11247653
    Abstract: A hydraulic control system for control of a hydraulic motor. The hydraulic control system comprises a fluid distribution assembly having a tank, a pump to pump fluid from the tank and a directional valve for distributing pressurised fluid from the pump and to return fluid to the tank; a valve assembly fluidly connected to the directional valve, the valve assembly having a first overcenter valve and a pressure reducing valve wherein a first main line connects the directional valve to the first overcenter valve and wherein a shuttle line connects the pressure reducing valve to the first main line; a hydraulic motor fluidly connected to the valve assembly wherein the first main line connects the hydraulic motor to the first overcenter valve; and a brake assembly fluidly connected to the pressure reducing valve, wherein a drain line connects the pressure reducing valve to the hydraulic motor.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: February 15, 2022
    Assignee: Dana Motion Systems Italia S.R.L.
    Inventors: Fabio Natali, Giovanni Mariech
  • Patent number: 11248619
    Abstract: Articles of manufacture, preferably pump component parts, and a method for making the articles, include providing a plurality of layers of reinforcing fibers in a stack of consecutive layers in a matrix of synthetic polymeric material. The reinforcing fibers of different layers are of corresponding different materials, and the layers are arranged such that the material of the reinforcing fibers in each layer is different from the material of the reinforcing fibers in the next consecutive layer. The layers are stitched together with further reinforcing fibers extending within the stack essentially perpendicular to the layers and interspersed throughout the stack. The stack is compressed and cured to establish a block having a plurality of layers of reinforcing fibers and further reinforcing fibers in a matrix of synthetic polymeric material. The block is machined to establish a prescribed configuration of a desired article.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 15, 2022
    Inventor: John A. Kozel
  • Patent number: 11242863
    Abstract: A fan blade with improved structure includes a hub, a plurality of blades. The hub has a lateral side having two ends, one of which is formed a top side and the other end is extended to form an extended section, and a plurality of connecting slots located on the periphery of the extended section. Each blade has a first end correspondingly engaged in respective connecting slot and a second end. With these arrangements, the fan blade with improved structure can increase structural strength of thin fan blades and be easy to connect the hub to the blades.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: February 8, 2022
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Liang-Hua Xu, Te-Chung Wang
  • Patent number: 11242851
    Abstract: A linear actuator system includes a linear actuator and at least one proportional control valve and at least one pump connected to the linear actuator to provide fluid to operate the linear actuator. The at least one pump includes at least one fluid driver having a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from the pump inlet to the pump outlet. 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 and concurrently establishes an opening of the at least one proportional control valve to adjust at least one of a flow and a pressure in the linear actuator system to an operational set point.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 8, 2022
    Inventor: Thomas Afshari
  • Patent number: 11236757
    Abstract: A pump for pumping a liquid, includes an impeller and an axially extending drive shaft assembly, wherein a distal end of the drive shaft assembly is received in a central recess of the impeller. The drive shaft assembly includes a drive shaft and a connector. The connector includes a sleeve that is in telescopic engagement with the drive shaft. During operation of the pump the impeller is displaceable in the axial direction in relation to the sleeve between a distal rest position and a proximal position. The impeller is biased towards the distal rest position by a spring member arranged between the sleeve and the impeller. The connector includes a hollow adjustment screw that is in threaded engagement with an interior side of the sleeve to limit the maximum degree of telescopic overlap between the sleeve and the drive shaft.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: February 1, 2022
    Inventor: Stefan Bergh
  • Patent number: 11231040
    Abstract: A fan assembly in which all of the major structural components of the assembly are mechanically fastened together by non-welding means, such as mechanical fasteners, is disclosed. The disclosure also relates to a fan assembly in which the major structural components have planar segments separated by bend lines that approximate a curved shape, and that can be formed, for example, by a press brake machine. Such a construction can eliminate the necessity for rolling, welding, and painting of the structural components of the fan assembly.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: January 25, 2022
    Assignee: Greenheck Fan Corporation
    Inventors: Nathan D. Fetting, Scott S. Kurszewski, Joe A. Knoedler, Todd J. Burns
  • Patent number: 11231044
    Abstract: An apparatus comprises a gas turbine engine having a compressor for increasing a total pressure of a working fluid prior to delivery to a combustor for mixing with fuel. The compressor has a plurality of airfoil members that extend between a first flow surface and a second flow surface. The plurality of airfoil members have a first camber shape at a tip portion that provides a cumulative integral according to the relationship 0.4 < ? 0 1 ? [ ? 0 x ? ? ? ? dx ] ? dx ? 0 1 ? ? ? ? dx ? 0.5 where x is chord location, ? ? = ? i - ? ? i - ? e , ?i is inlet metal angle, ?e is exit metal angle, and ? is a camber angle at a given chord location.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 25, 2022
    Assignee: Rolls-Royce Corporation
    Inventor: Bronwyn Power
  • Patent number: 11213938
    Abstract: A pressing tool is described for plastically deforming a workpiece. The pressing tool comprises a piston pump driven by a motor that rotates in operating rotation direction RA and a pressure release valve and a coupling arrangement, which mechanically couples the motor to the pressure relief valve, so that the motor opens the pressure relief valve when operated in a loosening rotation direction RL opposite to the operating rotation direction RA. Also described is a corresponding method of operating a pressing tool.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: January 4, 2022
    Assignee: Von ARX AG
    Inventors: Matthias Ruch, Rudolf Kreuzer