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1. 发明公开

US20240240655A1 MECHANICALLY LOCKING ACTUATOR 审中-公开
公开(公告)号：US20240240655A1
公开(公告)日：2024-07-18
申请号：US18560070
申请日：2022-04-22
申请人： SAFRAN LANDING SYSTEMS UK LTD.
发明人： Manish CHAUHAN
IPC分类号： F15B15/26 , B64C25/32 , F03G7/06 , F15B15/16
CPC分类号： F15B15/26 , F03G7/06145 , F15B15/16 , B64C25/32
摘要： A lockable telescopic actuator arranged to be in a locked state or in an unlocked state, the lockable telescopic actuator including: a body defining a cylindrical cavity; a piston mounted to slide in the cylindrical cavity; and a locking mechanism including a first locking segment, arranged to move from a locked position to an unlocked position. In the locked position the first locking segment is engaged with the piston to prevent the piston from moving. In the unlocked position the first locking segment is disengaged from the piston to allow the piston to move. A first shape memory alloy, SMA, biasing element configured to be extended or compressed such that when the first SMA biasing element is compressed the first locking element is biased into the locked position and when the first SMA bias element is extended the first locking element is biased into the unlocked position.

2. 发明授权

US12025161B2 Joint structure of telescopic cylinder 有权
公开(公告)号：US12025161B2
公开(公告)日：2024-07-02
申请号：US18310983
申请日：2023-05-02
申请人： BROGENT TECHNOLOGIES INC.
发明人： Chih-Huang Wang , Tien-Ni Cheng
IPC分类号： F15B15/16
CPC分类号： F15B15/16
摘要： Disclosed herein is a joint structure of a telescopic cylinder, the joint structure including a telescopic unit, an extension unit and a first fixing unit, wherein the telescopic unit includes a first main body, a first combined structure and at least one first fixing structure; the extension unit includes a second main body, a second combined structure and at least one second fixing structure; the first combined structure is screwed to the second combined structure; and the first fixing unit includes at least one first fixing body, and the first fixing body is simultaneously arranged in the first fixing structure and the second fixing structure and interferes with the first main body and the second main body so as to prevent the first combined structure and the second combined structure from spiral movement.

3. 发明授权

US12017354B2 Pneumatic-controlled pitch-adjustable telescopic mechanism used for robotic arm 有权
公开(公告)号：US12017354B2
公开(公告)日：2024-06-25
申请号：US17418078
申请日：2020-07-02
申请人： Guangzhou College of Technology and Business
发明人： Xianfeng Zhang , Junrong Li , Yuehui Wang
IPC分类号： B25J9/14 , F15B15/16
CPC分类号： B25J9/144 , F15B15/16
摘要： The present invention discloses a pneumatic-controlled pitch-adjustable telescopic mechanism used for a robotic arm, which belongs to the technical field of robotic arm pneumatic control movement, comprising a sliding block, a fixed block and a driving device, the fixed block is in a fixed position; the sliding block slides relative to the fixed block according to a predetermined movement track, which is used to adjust the distance between the sliding block and the fixed block; the driving device is used to provide power to drive; a sliding bar is disposed between the driving device and the sliding block, one end of the sliding bar is fixedly connected to the driving device, and the other end is slidingly connected to the sliding block, which is used to drive the sliding block to slide; the fixed block is provided with a fixed base and a guide mechanism, the fixed base is used to restrict the sliding bar from moving in a direction non-parallel to the predetermined movement track; the guide mechanism is used to guide the sliding block to slide along the predetermined movement track. The present invention provides a pneumatic-controlled telescopic mechanism that can adjust the length of a robotic arm joint and has a small and flexible joint; using a gas bag as a driving force, the present invention has high movement precision, and is environmentally friendly and pollution-free, and the length of the joint can be changed, increasing the flexibility of the robotic arm.

4. 发明授权

US11994121B1 Piston in piston variable displacement hydraulic device 有权
公开(公告)号：US11994121B1
公开(公告)日：2024-05-28
申请号：US18536668
申请日：2023-12-12
申请人： TONAND INC.
发明人： Antonio Cannata
IPC分类号： F04B3/00 , F01B7/18 , F01B7/20 , F04B1/0435 , F04B25/02 , F15B11/16 , F15B15/14 , F15B15/16 , F15B15/26
CPC分类号： F04B3/003 , F01B7/18 , F01B7/20 , F04B1/0435 , F04B25/02 , F15B11/16 , F15B15/1409 , F15B15/16 , F15B15/261
摘要： A variable displacement hydraulic device comprising: a housing having an inlet for receiving hydraulic fluid and an outlet for outputting the hydraulic fluid, the housing having a reciprocation axis; a first cylinder positioned in the housing along the reciprocation axis, the first cylinder having a first input for receiving the hydraulic fluid on a first intake stroke and a first output for ejecting the hydraulic fluid on a first exhaust stroke; a first piston positioned for a first reciprocal motion within the first cylinder, the first piston having a first main end exposed to the hydraulic fluid and a second main end coupled to an actuator, the actuator for driving the second main end when coupled to the actuator for causing the first reciprocal motion to induce a first portion of said outputting of the hydraulic fluid; a second cylinder positioned in the first piston along the reciprocation axis, the second cylinder having a second input for receiving the hydraulic fluid on a second intake stroke and a second output for ejecting the hydraulic fluid on a second exhaust stroke; a second piston positioned for a second reciprocal motion within the second cylinder, the second piston having a first secondary end exposed to the hydraulic fluid and a second secondary end coupled to the actuator, the actuator for driving the second secondary end when coupled to the actuator for causing the second reciprocal motion to induce a second portion of said outputting of the hydraulic fluid; and a locking mechanism for inhibiting the first reciprocal motion of the first piston; wherein when engaged the locking mechanism inhibits the first portion of said outputting of the hydraulic fluid by decoupling the first piston from the actuator while continued operation of the actuator provides the second portion of said outputting of the hydraulic fluid by the second piston.

5. 发明公开

US20230366414A1 MULTI-STAGE, TELESCOPING HYDRAULIC CYLINDER, CYLINDER BEARING PROTECTION SYSTEM, AND SCRAPER FOR CYLINDER ROD 审中-公开
公开(公告)号：US20230366414A1
公开(公告)日：2023-11-16
申请号：US18317405
申请日：2023-05-15
申请人： Rosenboom Machine & Tool, Inc.
发明人： Darin M. Rosenboom , Ryan L. Bolkema
IPC分类号： F15B15/14 , F15B15/16 , F15B21/041
CPC分类号： F15B15/1438 , F15B15/16 , F15B21/041
摘要： Hydraulic cylinders include a number of features that are useful in a number of industries. The great advantage telescopic cylinders have over any other type of cylinders is their ability to provide an exceptionally long stroke from a compact initial package. Controlling the extension and retraction of the stages of a telescoping cylinder mitigates mis-staging, which is an unwanted result of some telescoping cylinders. Spherical bearings at the end mount of cylinders, either telescoping or not, can be cleaned using scrapers, which will extend the life of the bearings in the field. The rods of cylinders, either telescoping or not, can also be cleaned with additional scrapers at key locations to further remove unwanted and potentially damaging material that can build up on the rods, such as due to the environment of use for the cylinders.

6. 发明授权

US11524737B2 Actuation device and telescopic apparatus 有权
公开(公告)号：US11524737B2
公开(公告)日：2022-12-13
申请号：US16414858
申请日：2019-05-17
申请人： SHIMANO INC.
发明人： Yuki Sakagawa , Toyoto Shirai , Yoshimitsu Miki
IPC分类号： B62J1/06 , B62J1/00 , B62K19/36 , F15B15/14 , B62J1/08 , F15B15/16
摘要： An actuation device for a human-powered vehicle comprises a base member, a movable member, and an actuator. The movable member is movably provided on the base member. The actuator is configured to be actuated by stimulation including at least one of electric stimulation and heat stimulation so as to move the movable member relative to the base member in a first direction by pulling the movable member.

7. 发明授权

US11174026B2 Aircraft store ejector system 有权
公开(公告)号：US11174026B2
公开(公告)日：2021-11-16
申请号：US16548685
申请日：2019-08-22
申请人： Marvin Engineering Company, Inc.
发明人： Lee Allen Tobias , Sohrab John Talebian , Robert Ronald Evans
IPC分类号： B64D1/12 , B64D1/06 , F15B1/26 , F15B15/16
摘要： An aircraft store ejector systems and subsystems thereof. Embodiments can include a two-reservoir re-pressurization system wherein a remote reservoir is used to maintain desired pressure in a local ejector reservoir. The system can include a release valve having a vent valve and valve piston. The release valve can control release of pressurized gas to a pitch control valve. The pitch control valve can be configured to distribute the pressurized gas between two or more ejector piston assemblies. One or more of the ejector piston assemblies can include multiple concentric piston stages and piston chambers, the piston chambers configured to contain a volume of gas. The ejector piston assemblies can be configured to compress the volume of gas within the piston chambers as the piston stages are extended out from the aircraft. Such compression can provide a return force to the piston stages.

8. 发明授权

US10677271B2 Hydraulic cylinder 有权
公开(公告)号：US10677271B2
公开(公告)日：2020-06-09
申请号：US15830690
申请日：2017-12-04
申请人： EATON INTELLIGENT POWER LIMITED
发明人： Sandeep Manohar Birje
IPC分类号： F15B15/16 , F15B15/14 , F15B15/24 , A61G7/012
摘要： A hydraulic cylinder may include a cylindrical body, a first piston rod coupled with a first end of the body, and a second piston rod coupled with a second end of the body. The first piston rod may include a cavity with an inner diameter, and the second piston rod may have an outer diameter that is smaller than the inner diameter of the cavity. The hydraulic cylinder is adjustable from a closed position, in which a length of the first piston rod is housed inside the body and a length of the second piston rod is housed inside the cavity of the first piston rod, to an extended position, in which the first piston rod extends through the first end of the body and the second piston rod extends through the second end of the body.

9. 发明申请

US20200079453A1 ACTUATION DEVICE AND TELESCOPIC APPARATUS 审中-公开
公开(公告)号：US20200079453A1
公开(公告)日：2020-03-12
申请号：US16414858
申请日：2019-05-17
申请人： SHIMANO INC.
发明人： Yuki SAKAGAWA , Toyoto SHIRAI , Yoshimitsu MIKI
IPC分类号： B62J1/06 , F15B15/14 , F15B15/16
摘要： An actuation device for a human-powered vehicle comprises a base member, a movable member, and an actuator. The movable member is movably provided on the base member. The actuator is configured to be actuated by stimulation including at least one of electric stimulation and heat stimulation so as to move the movable member relative to the base member in a first direction by pulling the movable member.

10. 发明授权

US10578135B2 Operating cylinder device with at least one operating cylinder unit with mechanical position safety and operating method 有权
公开(公告)号：US10578135B2
公开(公告)日：2020-03-03
申请号：US15855566
申请日：2017-12-27
申请人： Henning Fuhrmann
发明人： Henning Fuhrmann
IPC分类号： F15B15/26 , F15B15/16 , F15B15/28 , B66F3/30 , B66F3/28
摘要： In order to secure a reached extension position of a piston rod (22, 22′) of an in particular multi stage operating cylinder device (100) with at least one operating cylinder unit (50) not only through the operating pressure in the cylinder (1, 1′) of the operating cylinder unit (50) but additionally mechanically, a mechanical safety through interlocking safety elements (4a, b) in the interior of the operating cylinder device (100) is provided which is activated exclusively by the operating pressure in the first pressure cavity and disengaged by a pressure in a second operating cavity.

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