Patents Examined by Daniel S Collins
  • Patent number: 12031558
    Abstract: An artificial muscle includes a housing including an electrode region and an expandable liquid region and a dielectric liquid housed within the housing. The artificial muscle further includes an electrode pair positioned in the electrode region of the housing, the electrode pair comprising a first electrode and a second electrode, wherein the electrode pair is configured to actuate between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric liquid into the expandable liquid region, expanding the expandable liquid region. The artificial muscle also includes a composite electrical insulating layered structure in contact with at least one of the first electrode or the second electrode, wherein the composite electrical insulating layered structure that includes an electrical insulator layer surrounded by adhesive surfaces. The adhesive surfaces are located between one or more flexible electrical insulators.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: July 9, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Max Herzog, Maduran Palaniswamy, Michael P. Rowe, Charles R. Rutledge
  • Patent number: 12030585
    Abstract: A master cylinder for a brake. The master cylinder includes a cylinder main body having a hydraulic pressure chamber, a reservoir tank having a storage chamber, and a separator that is provided in the reservoir tank to divide a space in the storage chamber of the reservoir tank into an upper region and a lower region. A hydraulic fluid is storable in the hydraulic pressure chamber, and is storable in the storage chamber for thereby replenishing the hydraulic pressure chamber. The hydraulic fluid is circulatable between the upper region and the lower region, such that a liquid surface of the hydraulic fluid is in the upper region. The separator has a lower surface in the lower region. The lower surface has an inner portion, and an inclined portion that surrounds the inner portion and that is inclined outwardly and upwardly with respect to the inner portion.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: July 9, 2024
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Katsuya Haruta, Kazuki Watanabe, Norihisa Kobayashi
  • Patent number: 12018458
    Abstract: It is an object of the present invention to provide a construction machine capable of efficiently driving a hydraulic cylinder by an accumulator. Thus, the construction machine includes a first control valve disposed in a first hydraulic fluid line connecting a bottom-side fluid chamber of a hydraulic cylinder with an accumulator, and a second control valve disposed in a second hydraulic fluid line connecting a rod-side fluid chamber of the hydraulic cylinder with a tank. The construction machine further includes a third control valve disposed in a third hydraulic fluid line connecting the rod-side fluid chamber with the accumulator, and a fourth control valve disposed in a fourth hydraulic fluid line connecting a line part of the first hydraulic fluid line, which connects the bottom-side fluid chamber with the third control valve, and a line part of the third hydraulic fluid line, which connects the rod-side fluid chamber with the third control valve, with each other.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: June 25, 2024
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Seiji Hijikata, Yasutaka Tsuruga, Kenji Hiraku, Masatoshi Hoshino
  • Patent number: 11999325
    Abstract: The present disclosure relates to a friction member and a master cylinder including the same. The master cylinder includes a cylinder body with a bore formed therein, a piston configured to move forward and backward in the bore and protrude a portion thereof from the cylinder body, a housing configured to surround the protruding portion of the piston and having a through hole formed therein such that an input rod connected to a brake pedal to press the piston is inserted, a friction member provided between the housing and the piston to increase a frictional force with the piston when the piston moves forward and backward, and a pedal simulator connected to the piston to provide a repulsive force to the brake pedal.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: June 4, 2024
    Assignee: HL MANDO CORPORATION
    Inventor: Joo Un Cho
  • Patent number: 11997948
    Abstract: An actuator assembly for moving an implement attached to an agricultural vehicle. The actuator assembly includes an actuator comprising a longitudinal axis, a cylinder extending along the longitudinal axis, and a piston rod extending from the cylinder along the longitudinal axis and that is configured to be attached to the implement at a connection point. A safety stop is pivotably attached at the connection point and is movable between a deployed position where the safety stop is configured to block retraction of the actuator, and a retracted position where the safety stop is not configured to block retraction of the actuator. The safety stop is configured to rotate with respect to the actuator about a first rotational axis that is orthogonal to the longitudinal axis, as well as a second rotational axis that is orthogonal to both the longitudinal axis and the first rotational axis.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: June 4, 2024
    Assignee: CNH Industrial America LLC
    Inventors: Seth Bietz, Jonathan E. Ricketts, David M. DeChristopher, Barry E. Lehman, Joel T. Cook
  • Patent number: 11999327
    Abstract: Proposed is an electronic brake device of a vehicle including: a cylinder unit; a screw shaft provided in the cylinder unit, and axis-rotated by a rotational force received from a motor; a nut unit coupled to the screw shaft with a ball member interposed therebetween, reciprocates in an axial direction of the screw shaft according to a rotating direction of the screw shaft, and provided with a flange part on one side end portion thereof; a piston unit coupled to the nut unit, and moves in conjunction with the nut unit; a sleeve unit provided inside the cylinder unit, and guides the piston unit to be inserted and move therethrough; and a guide member provided inside the cylinder unit, restricts rotation of the flange part so that rotation of the nut unit is restricted, and guides movement of the flange part.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: June 4, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Si Yoon Park
  • Patent number: 11994152
    Abstract: A pneumatic circuit for controlling the activation of a robot with inflatable chambers includes at least one ring oscillator formed from a plurality of valves connected in series to selectively admit fluid pressure to inflate and deflate the chambers. Sequential actuation of the valves induces sequential bending and rotation of combinations of the chambers to effect motion. A switching valve changes the actuation sequence of the oscillator valves to change the direction of motion.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: May 28, 2024
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Dylan Drotman, Saurabh Jadhav, Michael T. Tolley, David Sharp, Christian Chan
  • Patent number: 11965597
    Abstract: The present disclosure is to provide a piston assembly in which a particle does not leak out of a cylinder, and including, in an embodiment, a piston body; a piston rod connected to the piston body; a first groove formed in an outer surface of the piston body; and a particle discharge flow path extending from an internal space of the piston body to the outer surface of the piston body.
    Type: Grant
    Filed: January 21, 2023
    Date of Patent: April 23, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Sung Hun Eom, Nam Ki Hong
  • Patent number: 11959453
    Abstract: The utilization of hydro-generation technology is provisioned inside of water distribution systems within large urban buildings that require water pressure reduction. These micro-hydro-generators reduce the water pressure for tenant use and converts the energy into electricity to be used or sold.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: April 16, 2024
    Inventor: Dylan M. Kassin
  • Patent number: 11959501
    Abstract: An actuation unit includes an actuating arm pivotable between an open and closed position; a pneumatic cylinder comprising a stem movable linearly along a cylinder axis and configured to control pivoting of the actuating arm; and a closing device that includes a braking unit configured to brake movement of the actuating arm having a surface portion configured to come into contact with at least one braking assembly. The braking assembly is locked against rotation and axially movable between a non-braking and braking configuration. The surface portion is in a non-orthogonal arrangement with respect to the cylinder axis and the braking assembly includes a plurality of rollers retained in the braking assembly with clearance at least with respect to a radial movement thereof, the rollers being able to assume a first radial configuration not in contact with the surface portion and a second radial configuration in contact with the surface portion.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: April 16, 2024
    Assignee: PNEUMAX S.P.A.
    Inventor: Rossella Bottacini
  • Patent number: 11959476
    Abstract: A fluid end block for a reciprocating pump defines a fluid chamber and a packing bore. An outlet fluid passage is formed in the fluid end block in communication with the fluid chamber and includes an outlet valve. An inlet fluid passage is formed in the fluid end block in fluid communication with the fluid chamber and includes an inlet valve. A plunger is reciprocally disposed in the packing bore. Packing in the packing bore is positioned to contact the plunger and a packing sleeve is disposed between the packing and the packing bore. The packing sleeve is a hollow cylinder with inner and outer surfaces and an inner end configured to be inserted into the packing bore. The inner end includes a bevel extending between the outer surface and the inner end, the outer surface including a notch formed therein adjacent the inner end.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: April 16, 2024
    Assignee: SPM Oil & Gas Inc.
    Inventors: David T. Figgs, Justin Poehls
  • Patent number: 11951956
    Abstract: A brake system includes a single chamber power transmission unit, a plurality of wheel brakes, and an iso/dump control valve arrangement associated with each wheel brake of the plurality of wheel brakes. A reservoir is hydraulically connected to the single chamber power transmission unit and to each of the iso/dump control valve arrangements. A pump piston is associated with at least one wheel brake. The pump piston is driven by a second electric motor for selectively providing pressurized hydraulic fluid from the reservoir to the iso/dump control valve arrangement of the at least one associated wheel brake. First and second switching valves are provided, and are two-position, three-way type valves, each hydraulically interposed between at least one iso/dump control valve arrangement and both of a selected pump piston and the output line of the single chamber power transmission unit. First and second electronic control units are provided.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: April 9, 2024
    Assignee: ZF Active Safety US Inc.
    Inventor: Blaise J. Ganzel
  • Patent number: 11953933
    Abstract: Disclosed are a pedal simulator including a housing, a piston part slidably mounted in an inner space of the housing, and including a plurality of piston rod units, and a plurality of damper parts mounted in the housing, and disposed to face the plurality of piston rod units, respectively, wherein the damper parts are compressed by pressure from the piston rod units facing each other.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: April 9, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jin Hyun Kim, Myeon Gyu Cha
  • Patent number: 11939995
    Abstract: Disclosed here is a system and method to control multiple eversion-based actuators using a single motor, or no motor, thereby reducing the size and cost of the multiple eversion-based actuators. An activation mechanism can include a motor rotating in an expansion direction, rotating shaft, clutch, brake, pressure source under high pressure, and/or valve. The activation mechanism can cause the actuators including a wound reel of material to unwind and lengthen. A retraction mechanism can include a motor rotating in a contraction direction opposite the expansion direction, rotating shaft, clutch, pressure source having low pressure, valve associated with the pressure source, and/or the passive retraction system. The retraction mechanism can cause the actuators to rewind and shorten.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: March 26, 2024
    Assignee: ELECTRONICS FOR IMAGING, INC.
    Inventor: Eduardo Bueno Espinal
  • Patent number: 11933332
    Abstract: A hydraulic drive system for an agricultural implement includes a high pressure supply line configured to provide hydraulic fluid under pressure. The hydraulic drive system also includes a low pressure return line configured to return the hydraulic fluid. The hydraulic drive system further includes a plurality of hydraulic motors and coupled to the high pressure supply line. The hydraulic drive system still further includes a plurality of cylinder systems isolated from the high pressure supply line to minimize a supply pressure of the hydraulic fluid provided from a pump coupled to the high pressure supply line and to minimize throttling losses in the hydraulic drive system during operation of the hydraulic drive system.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: March 19, 2024
    Assignee: CNH Industrial America LLC
    Inventors: Francesco Pintore, Stefano Fiorati, Eugenio Leati, Trevor Philip Stanhope, Xiaofan Guo, Andrea Vacca, Patrick Michael Stump
  • Patent number: 11933330
    Abstract: A pneumatic hydraulic retractable device includes a fluid pressure cylinder having a cylinder body and a plug seat disposed in the cylinder body, a piston rod movably disposed in the fluid pressure cylinder, a control valve set having a valve seat disposed at the piston rod and forms an upper fluid chamber and a lower fluid chamber with the cylinder body therebetween, and a valve rod disposed in the valve seat for controlling communication between the upper and lower fluid chambers, and a pressure relief element forming a pressure relief gap with the piston rod. The pressure relief gap communicates with the lower fluid chamber through a communication portion of the pressure relief element. As such, when the valve rod is opened, the fluid is allowed to flow between the lower fluid chamber and the pressure relief gap through the communication portion for reducing airtight effect.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: March 19, 2024
    Assignee: J.D COMPONENTS CO., LTD.
    Inventors: Pin-Chieh Feng, Nien-Teng Kuo
  • Patent number: 11926295
    Abstract: The present disclosure relates to an electric hydraulic brake device, which includes a main brake unit, which provides a braking fluid to a plurality of wheel cylinder units by driving a motor, a storage unit connected to the main brake unit and configured to store the braking fluid, and an auxiliary brake unit which is connected to the main brake unit and the storage unit and provides the braking fluid to some of the plurality of wheel cylinder units when an operation error of the main brake unit occurs and in which a hydraulic circuit is physically distinguished.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: March 12, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Sung Ki Ahn
  • Patent number: 11927206
    Abstract: A hybrid actuation device that includes a first plate coupled to a second plate, a shape memory alloy wire coupled to the first plate, and an artificial muscle positioned between the first plate and the second plate. The artificial muscle includes a housing having an electrode region and an expandable fluid region, a first electrode and a second electrode each disposed in the electrode region of the housing and a dielectric fluid disposed within the housing. The expandable fluid region of the housing is positioned apart from a perimeter of the first plate and the second plate. A first alignment aid is positioned between the first plate and the first electrode, the first alignment aid having an inner surface facing the first plate and an outer surface facing the first electrode.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: March 12, 2024
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Michael P. Rowe, Max Herzog, Maduran Palaniswamy, Ryohei Tsuruta
  • Patent number: 11927204
    Abstract: A hydraulic powering system includes a hydraulic cylinder, an accumulator, and a manifold assembly. The hydraulic cylinder includes: (i) a hydraulic cylinder construction having a hydraulic cylinder wall and first and second hydraulic cylinder end caps forming an internal volume, a piston constructed to slide within the internal volume between the first and second hydraulic cylinder end caps and dividing the internal volume into an extend region and a retract region, and a piston rod extending from the piston and through the retract region and one of the first and second end caps to outside the hydraulic cylinder; (ii) an extend port in fluid connection with the extend region of the hydraulic cylinder; and (iii) a retract port in fluid communication with the retract region of the hydraulic cylinder.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: March 12, 2024
    Assignee: Industries Mailhot Inc.
    Inventor: Jeremy J. Gabor
  • Patent number: 11913542
    Abstract: A vehicle hydraulic control system comprises a high-low pressure decoupling valve, a high-pressure control oil circuit including a main pressure regulating pilot solenoid valve connected to a transmission controller and used for regulating the main oil pressure according to the instructions of the transmission controller and a main pressure regulating mechanical valve, a low-pressure cooling and lubricating oil circuit, a mechanical pump communication with the high-pressure control oil circuit, and an electronic pump is in communication with the high-pressure control oil circuit or the low-pressure cooling and lubricating oil circuit by means of the high-low pressure decoupling valve. The main pressure regulating mechanical valve is used for guiding the flow output by the electronic pump and/or the mechanical pump in communication with the high-pressure control oil circuit to the low-pressure cooling and lubricating oil circuit according to the control of the main pressure regulating pilot solenoid valve.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: February 27, 2024
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Yang Yang, Jiahao Zhou, Hanqing He, Yiguo Lu, Weiming Zhang, Peng Liu