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公开(公告)号：US20250067286A1
公开(公告)日：2025-02-27
申请号：US18717724
申请日：2022-10-14
Applicant: BRIDGESTONE CORPORATION
Inventor： Shingo OONO
Abstract: The fluid pressure actuator includes an actuator body portion and a sealing mechanism. The sealing mechanism includes a sealing member into which the sealing mechanism is inserted, a caulking ring provided on an outer peripheral surface of the sealing mechanism inserted into the sealing member and restricting the sealing mechanism, and a locking wire that locks a sleeve to the sealing member. The sealing member includes a head portion provided outside more than the body portion, and an intermediate portion provided between the body portion and the head portion. The intermediate portion is smaller in size in the radial direction of the sealing mechanism than the head portion, and has an enlarged diameter part that expands toward the radial direction outside of the actuator body portion than the body portion. The locking wire is compressed and deformed to fill the space formed between the caulking ring and the intermediate portion.
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公开(公告)号：US20250043806A1
公开(公告)日：2025-02-06
申请号：US18719525
申请日：2022-10-11
Applicant: BRIDGESTONE CORPORATION
Inventor： Shingo OONO , Shungo FUJITA
IPC: F15B15/10
Abstract: A hydraulic actuator includes a tube capable of being expanded and contracted by fluid pressure, a sleeve covering the tube, a pair of sealing members that seal both ends of the tube in an axial direction thereof, and plural inner pieces aligned inside the tube so as to be adjacent to each other. The plural inner pieces include a restraint side where adjacent inner pieces are in contact with each other in the tube whose inside is not pressurized by the fluid pressure and a swing side where a gap is made at an opposed position to the restraint side to allow the adjacent inner pieces to swing with respect to each other. The plural inner pieces further include a restraint mechanism that keeps the adjacent inner pieces in contact with each other on the restraint side in the tube whose inside is pressurized by the fluid pressure.
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公开(公告)号：US12209599B1
公开(公告)日：2025-01-28
申请号：US18125010
申请日：2023-03-22
Applicant: Savant Holdings LLC
Inventor： Bret J. Park , Taylor J. Summers , Zackary D. Swasey
Abstract: A multi-stage actuator for a turbocharger is disclosed. The actuator may comprise a diaphragm having an axially movable portion. An actuating shaft is coupled to the axially movable portion such that axial movement of the axially movable portion causes axial movement of the actuating shaft. Only a first spring resists axial movement of the axially movable portion within a first range of axial positions of the axially movable portion, and both a first and a second spring resist axial movement of the axially movable portion within a second range of axial positions of the axially movable portion.
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公开(公告)号：US12138214B2
公开(公告)日：2024-11-12
申请号：US17298728
申请日：2019-12-04
Applicant: President and Fellows of Harvard College
Inventor： Conor J. Walsh , Ciaran O'Neill , Nathan Phipps
Abstract: A textile actuator and harness system can include a harness configured to be worn with a portion extending across a wearer's joint. The harness comprises a substantially inextensible section and at least two mounting locations spaced for positioning across the joint, with at least one located along the substantially inextensible section of the harness. A textile envelope defines a chamber and is made fluid-impermeable by (a) a fluid-impermeable bladder contained in the textile envelope and/or (b) a fluid-impermeable structure incorporated into the textile envelope. The textile envelope is secured to the harness at each mounting location, and the textile envelope has a pre-determined geometry configured to produce assistance to the joint due to inflation of the textile envelope during a relative increase in pressure inside the chamber.
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公开(公告)号：US12129876B2
公开(公告)日：2024-10-29
申请号：US18193249
申请日：2023-03-30
Applicant: Weijia Tao , Wenlong Zhang , Zhi Qiao
Inventor： Weijia Tao , Wenlong Zhang , Zhi Qiao
CPC classification number: F15B15/10 , F15B15/1423 , F15B2215/305
Abstract: Elastomeric actuators and methods of making the same are provided herein. In some examples, an actuator includes a body comprising a plurality of pairs of frustums, wherein the body is configured to receive a fluid to extend the actuator and to remove the fluid to contract the actuator. In some examples, each pair of frustums includes two thin frustum shells sharing a common base circle diameter.
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Patent Agency Ranking
公开(公告)号：US20240336762A1
公开(公告)日：2024-10-10
申请号：US18292166
申请日：2022-05-26
Applicant: BRIDGESTONE CORPORATION
Inventor： Tomohiro URATA
CPC classification number: C08K3/04 , C08K3/041 , C08K2201/001 , F15B15/103
Abstract: The technical problem of the present disclosure is to provide a conductive rubber composition for sensing that has good responsiveness of changes in electrical resistance to strain and can accurately detect the occurrence of cracks. The solution is a conductive rubber composition for sensing, containing a rubber component and carbon black, wherein the rubber component contains 80% by mass or more of acrylonitrile-butadiene rubber with an acrylonitrile unit content of more than 45% by mass, a loss tangent (tan δ) at 1% strain is 0.6 or less, and a hysteresis loss (Wd/Ws) at 70% elongation is 0.43 or more.
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公开(公告)号：US20240209876A1
公开(公告)日：2024-06-27
申请号：US18557602
申请日：2022-04-27
Applicant: ISTANBUL TEKNIK UNIVERSITESI , MARMARA UNIVERSITESI
Inventor： Ayse Feyza ARSLAN , Kadir OZLEM , Fidan KHALILBAYLI , Hend ELMOUGHNI , Asli TUNCAY ATALAY , Gokhan INCE , Ozgur ATALAY
Abstract: Soft actuators controlled by fluid pressure comprise two sacs which provide for the flexion of a structure upon pressurizing this structure that has an anisotropic flexibility, which is provided by different knitted layers. The knitted layers are produced as integrated with each other by means of the three-dimensional whole-garment knitting technique. The actuators can be adapted according to the different requirements and produced with standard qualities.
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8.发明公开公开(公告)号：US20240195327A1
公开(公告)日：2024-06-13
申请号：US18587304
申请日：2024-02-26
Inventor： Michael P. Rowe , Shardul S. Panwar , Maduran Palaniswamy
CPC classification number: H02N1/002 , B25J9/1075 , F15B15/103 , F15B21/065 , H01B3/445
Abstract: An artificial muscle assembly includes initiating actuators and an artificial muscle. The artificial muscle includes a housing including an electrode region and an expandable fluid region, and an electrode pair positioned in the electrode region. The electrode pair includes a first electrode and a second electrode fixed to respective first and second surfaces of the housing. At least one of the first electrode and the second electrode includes a central opening defining the expandable fluid region. The electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs a dielectric fluid into the expandable fluid region. Each initiating actuator is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state applies a force against the electrode region of the artificial muscle.
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公开(公告)号：US20240141929A1
公开(公告)日：2024-05-02
申请号：US18480529
申请日：2023-10-04
Applicant: The University of Hong Kong
Inventor： Yong HU , Xiao Dong LI , De Hao DUAN MU , Xiao Jun WANG , Xiang CAO
IPC: F15B15/10 , F15B11/064 , F15B15/08
CPC classification number: F15B15/103 , F15B11/064 , F15B15/084
Abstract: This invention discloses a pneumatic and cable-driven hybrid artificial muscle, comprising pneumatic actuator, pneumatic pressure regulating assembly, and cable drive assembly. The pneumatic pressure regulating assembly is connected to the pneumatic actuator to regulate air pressure in the pneumatic actuator for controlling the pneumatic actuator to extend or contract. The cable actuation assembly comprises a cable fixedly connected to the pneumatic actuator for controlling the pneumatic actuator to contract. In this invention, the artificial muscle employs a dual pneumatic and cable actuation mechanism. By leveraging the inherent stiffness of the pneumatic actuator, it can provide substantial actuation force for joint movement. Simultaneously, the cable actuation assembly can provide significant pulling force, effectively ensuring safety in human-machine interaction and offering sufficient bidirectional aiding force to individuals with disabilities who use the artificial muscle as an aiding actuation device.
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10.发明授权公开(公告)号：US11949349B2
公开(公告)日：2024-04-02
申请号：US17689400
申请日：2022-03-08
Inventor： Michael P. Rowe , Shardul S. Panwar , Maduran Palaniswamy
CPC classification number: H02N1/002 , B25J9/1075 , F15B15/103 , F15B21/065 , H01B3/445
Abstract: An artificial muscle assembly includes initiating actuators and an artificial muscle. The artificial muscle includes a housing including an electrode region and an expandable fluid region, and an electrode pair positioned in the electrode region. The electrode pair includes a first electrode and a second electrode fixed to respective first and second surfaces of the housing. At least one of the first electrode and the second electrode includes a central opening defining the expandable fluid region. The electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs a dielectric fluid into the expandable fluid region. Each initiating actuator is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state applies a force against the electrode region of the artificial muscle.
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