Patents Examined by James K. Hsiao
  • Patent number: 11904650
    Abstract: A shock absorber for a vehicle includes a pressure tube containing a hydraulic fluid. The shock absorber further includes a piston rod extending within the pressure tube along a longitudinal axis, and including a piston end disposed within the pressure tube. The piston rod includes a rod chamber defined within the piston rod and extending along the longitudinal axis from an upper chamber end distal to the piston end to a lower chamber end proximal to the piston end. The piston rod further includes at least one first opening disposed proximal to the lower chamber end. The shock absorber further includes a first piston assembly, an auxiliary housing, and a damper assembly including a sleeve received within the rod chamber.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: February 20, 2024
    Assignee: DRiV Automotive Inc.
    Inventor: Jonas Henderickx
  • Patent number: 11906015
    Abstract: A damper including inner and outer tubes is provided. A piston is slidably disposed within the inner tube. An intermediate tube is positioned radially between the inner and outer tubes. The intermediate tube extends between first and second intermediate tube ends. An intermediate channel is disposed radially between the intermediate and inner tubes. A slanted elliptical seal is positioned inside the intermediate channel and divides the intermediate channel into first and second intermediate channel portions. A first control valve is in fluid communication with the second intermediate channel portion via a first intermediate tube opening. A second control valve is in fluid communication with the first intermediate channel portion via a second intermediate tube opening. The slanted elliptical seal abuts the intermediate tube between the first intermediate tube opening and the first intermediate tube end and between the second intermediate tube opening and the second intermediate tube end.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: February 20, 2024
    Assignee: DRiV Automotive Inc.
    Inventor: Stefan Deferme
  • Patent number: 11898615
    Abstract: A cylinder apparatus is provided with a stopper mechanism that operates when a piston rod extends and moves toward an upper end portion in an inner cylinder. This stopper mechanism includes a second cylinder provided movably relative to the piston rod and including a bottom portion on an upper end side in the inner cylinder and a cylinder portion extending from the bottom portion toward a lower end side, and a second piston provided so as to be able to move along with a movement of the piston rod to be fitted to the second cylinder. While being configured in this manner, the cylinder apparatus is configured in such a manner that a spring member 21 is provided between the second cylinder and a rod guide.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: February 13, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Toshihiro Inuzuka, Urban Anta Carlos, Atsushi Maeda, Koji Minamino, Aakash Patwa
  • Patent number: 11892056
    Abstract: A ring circumscribing a moveable rod of a hydraulic damper, the moveable rod defining a central axis, the ring comprising a first circumferential surface, a second circumferential surface, a first finger, a second finger, a first flange, and a second flange. The first finger and the first flange defining a first end of the ring. The second finger and the second flange defining a second end of the ring.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: February 6, 2024
    Assignee: DRiV Automotive Inc.
    Inventor: Matthew Lawrence Roessle
  • Patent number: 11878562
    Abstract: An adjustable shock absorber system includes: a coil over shock absorber with a spring and a lockable adjustment ring; a protective cover assembly, optionally including top and bottom cover portions; a shock adjuster tool with a lever arm and a tool grip portion, including a band assembly, and a tool attachment assembly, including a connector member and a tool member; such that the tool grip portion detachably connects to the peripheral mounting surface of the lockable adjustment ring; whereby the shock adjuster tool can be used to adjust a preload of the coil-over shock absorber. Alternatively, an adjustable shock absorber system includes: a coil-over shock absorber with a spring and an adjustment ring; an adjustment ring assembly, which detachably interlocks with the adjustment ring; and a shock adjuster tool with a lever arm and a tool grip portion, which detachably connects with the adjustment ring assembly.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: January 23, 2024
    Inventor: Bernard J. Carr
  • Patent number: 11879514
    Abstract: Disclosed are a compound impact-resistant device and an application thereof. The compound impact-resistant device includes an inner cylinder, a first pressure sensor and an outer cylinder; an inner cavity of the inner cylinder is connected to a magnetorheological damper, a spiral valve element, a floating piston and a spring from bottom to top; and the outer cylinder is connected to a piston rod, a bottom end of the piston rod penetrates a top of the inner cylinder, the spring and the floating piston to be connected to the spiral valve element, and a portion below the spiral valve element is filled with hydraulic oil. The compound impact-resistant device can provide specific initial support force and achieve active self-adaptation to dynamic impact, thus solving the problems that traditional hydraulic buffers cannot provide initial support force and traditional mechanical crushing members have difficulty in providing large support force.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: January 23, 2024
    Assignee: Shandong University of Science and Technology
    Inventors: Chenglong Wang, Meng Chen
  • Patent number: 11873874
    Abstract: An adjustable shock absorber system includes: a coil over shock absorber with a spring and an adjustment ring; an adjustment ring assembly, which detachably interlocks with the adjustment ring; and a shock adjuster tool with a lever arm and a tool grip portion, including a band assembly; such that the tool grip portion detachably connects to a peripheral mounting surface of the adjustment ring assembly; whereby the shock adjuster tool can be used to adjust a preload of the coil-over shock absorber.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: January 16, 2024
    Inventor: Bernard J. Carr
  • Patent number: 11865886
    Abstract: A suspension includes a coil spring, a shock absorber, a spring seat, and at least three strongly pressing parts. The coil spring elastically receives vertical movement of a wheel relative to a vehicle body. The shock absorber damps the vertical movement. The spring seat is provided in the shock absorber. The sprint seat supports an axial end of the coil spring. The coil spring is in direct or indirect contact with the spring seat over a predetermined distance from an end to a point of separation of the coil spring. The strongly pressing parts are provided in the spring seat. The strongly pressing parts apply contact pressures higher than contact pressure applied by other part, to the coil spring. The point of separation is disposed at a region that is between the strongly pressing parts and has the largest opening angle about an axial center of the shock absorber.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 9, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Yuta China, Koichi Uchikawa
  • Patent number: 11867253
    Abstract: Hydraulic fluid in a cylinder's lower chamber is introduced into a back pressure chamber through the outer periphery of an extension-side main valve during a compression stroke of a piston rod. This eliminates the necessity of forming paths by arranging a plurality of discs and a check valve, the paths for introducing into the back pressure chamber the hydraulic fluid in the cylinder's lower chamber that becomes an upstream chamber during the compression stroke. This makes it possible to decrease the axial length of a shaft portion of the piston rod and therefore the entire length of a cylinder, and also downsize a shock absorber.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 9, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Fumiyuki Yamaoka
  • Patent number: 11840167
    Abstract: An overridable failsafe brake apparatus for a vehicle is provided. The overridable failsafe brake apparatus includes (a) a lever accessible from outside the vehicle, the lever being operable at a first position and a second position; (b) a brake; and (c) a spring having a first end coupled to the lever and a second end coupled to the brake. (d) The lever disposed in the first position is configured to induce tension in the spring that enables the brake to be activated, and the lever disposed in the second position is configured to reduce tension in the spring to disable the brake from being engaged. A method of operating an overridable failsafe brake apparatus for a vehicle and a vehicle including an overridable failsafe brake apparatus are also provided.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: December 12, 2023
    Assignee: Howe & Howe Inc.
    Inventors: Zachary Edward Sawyer, Forrest Joel Tripp
  • Patent number: 11833873
    Abstract: Air suspension strut for a motor vehicle comprising an air spring with a shock damper, wherein the air spring comprises an air spring cover and a rolling piston, wherein a rolling bellows of elastomer material is clamped in an airtight manner between the air spring cover and the rolling piston, the air spring cover comprises a damper bearing receptacle having a base and receiving a damper bearing of the shock damper, and the air spring cover comprises a clamping base to which a first end of the rolling bellows is attached, wherein the air spring cover is manufactured from a plastic material and comprises a reinforcing core in order to increase the strength of the damper bearing receptacle, the reinforcing core being arranged in the base of the damper bearing receptacle and being at least partially surrounded by the plastic material of the air spring cover.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 5, 2023
    Assignee: Continental Teves AG & Co. OHG
    Inventor: Kai Marcus Rautenberg
  • Patent number: 11833874
    Abstract: A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: December 5, 2023
    Assignee: Fox Factory, Inc.
    Inventors: John Marking, Vegard Hamso
  • Patent number: 11828346
    Abstract: A vibration damper for a vehicle may include an outer tube, a middle tube, and an inner tube arranged coaxially. A seal receiving element may be arranged between the inner tube and the middle tube on each side of a middle tube opening facing towards tube ends of the middle tube. A radially encircling sealing element may be arranged in the seal receiving element, and the sealing element may seal the middle tube compensation space relative to the outer tube compensation space at least with respect to damping medium. The seal receiving element may be configured at least partially as a coating element. The coating element may be disposed on the inner tube or the middle tube in a substance-to-substance bonded manner.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: November 28, 2023
    Assignees: ThyssenKrupp Bilstein GmbH, thyssenkrupp AG
    Inventors: Ulrich Hartig, Freddy Woenarta, Moritz Froese, Andreas Müller, Mike Malburg, Jürgen Schneider
  • Patent number: 11821489
    Abstract: A valve mechanism includes an orifice collar having a hollow portion penetrating in an axial direction, a valve body having a central hole and an opening portion which penetrate in the axial direction and arranged so as to come into contact with an axial end surface of the orifice collar, and a drive valve which is movable in the axial direction and is arranged on an opposite side of the orifice collar with the valve body as a boundary, where the valve body includes spoke valves, each of which includes an outer frame portion, an inner frame portion, and a plurality of spoke portions connecting the outer frame portion 74 and the inner frame portion, and a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: November 21, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Yosuke Fujikawa
  • Patent number: 11821488
    Abstract: During the transition from the opening to the closing movement of a glove compartment door, or vice versa, undesirable noises (“clicking”/“popping”) can be reduced by providing regions of a housing surrounding a rotation damper with a contact region made of a material having a lower modulus of elasticity than the material of the remainder of the housing.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: November 21, 2023
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventor: Jürgen Hilpert
  • Patent number: 11808317
    Abstract: A squeeze mode giant electrorheological fluid damper is disclosed. The squeeze mode giant electrorheological fluid damper comprises a support, a container and a connecting structure, wherein the support comprises a bottom plate, guide shafts and a top plate, the guide shaft is vertically fixed on the bottom plate, and the top plate is slidably arranged on the guide shaft; the container comprises a container body and two spiral spring pieces coaxially arranged in the container body, the container body is fixed on the bottom plate, the bottoms of the two spiral spring pieces are fixed to the bottom of the container, the two spiral spring pieces are not in contact with each other and are spaced by 180°; the top of the connecting structure is fixedly connected with the top plate, and the bottom of the connecting structure is fixedly connected with the tops of the two spiral spring pieces.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: November 7, 2023
    Assignee: Shanghai University
    Inventors: Yi Sun, Ben Lu, Huayan Pu, Min Wang, Jiheng Ding, Wenchuan Jia, Yan Peng, Jun Luo
  • Patent number: 11808323
    Abstract: A damper assembly includes a pressure tube defining a first chamber and a piston movable within the first chamber. The damper assembly includes a reserve tube defining a second chamber. The damper assembly includes a cylinder end attached to the pressure tube, the cylinder end defining a passage in fluid communication with the first chamber and the second chamber. The damper assembly includes an orifice disc attached to the cylinder end and defining an opening in fluid communication with the passage. The damper assembly includes a check disc attached to the cylinder end, the check disc movable from a first position spaced from orifice disc to a second position abutting the orifice disc. Movement of the piston within the first chamber causes fluid flow between the first chamber and the second chamber via the passage of the cylinder end. The check disc and the orifice disc limit a rate of such fluid flow.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: November 7, 2023
    Assignee: DRiV Automotive Inc.
    Inventor: Franky Montagna
  • Patent number: 11801723
    Abstract: A strut mount includes: an inner member coupled to a suspension; an outer bracket having an outer cylinder portion housing the inner member, and a flange portion protruding radially outward from the outer cylinder portion and coupled to a vehicle body; an elastic member interposed between the inner member and the outer cylinder portion; and a seal member interposed between the flange portion and the vehicle body. The seal member includes an annular portion located between the flange portion and the vehicle body, and a first downward extending portion extending downward from an outer peripheral portion of the annular portion toward the opposite side from the vehicle body. The flange portion includes a placement surface portion which faces toward the vehicle body and on which the annular portion is placed, and a first sidewall portion extending from an outer peripheral portion of the placement surface portion to the opposite side from the vehicle body.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: October 31, 2023
    Assignees: KURASHIKI KAKO CO., LTD., SUBARU CORPORATION
    Inventors: Yuya Watanabe, Naoki Miyamoto, Hiroo Kawano
  • Patent number: 11796025
    Abstract: A valve mechanism includes: a cylindrical body; a plurality of valve bodies; and a drive valve. The drive valve includes a shaft portion having therein a flow path penetrating in the axial direction, and a step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion. The shaft portion has a tip portion which extends further on the cylindrical body side than the step portion. An outer diameter of the tip portion is smaller than an outer diameter of the step portion. A gap between the valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into contact with the drive valve moved in a direction approaching the valve body, in a direction approaching the cylindrical body with respect to an outer peripheral portion of the valve body.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: October 24, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Yosuke Fujikawa, Yosuke Murakami
  • Patent number: 11794542
    Abstract: A shock absorber having a metal damper tube and base assembly is provided. The base assembly, which includes a composite mounting attachment made of a composite material, such as a recyclable thermoplastic, is fixed to an external surface of the metal damper tube, which may be a finished product. A cavity in the composite mounting attachment houses at least a portion of the metal damper tube and thus defines an overlapping region where the composite mounting attachment and the metal damper tube are co-extensive with each other. One or more windows are provided in the overlapping region of the composite mounting attachment where the metal damper tube is left exposed. This helps to promote heat dissipation away from the metal damper tube while reducing weight and heat transmission from the metal damper tube to the composite mounting attachment to reduce overheating of the composite material.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: October 24, 2023
    Assignee: DRiV Automotive Inc.
    Inventors: Emilie Boulay, Miguel Dhaens