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公开(公告)号：US11815142B2
公开(公告)日：2023-11-14
申请号：US17428052
申请日：2020-02-03
Applicant: Vanderbilt University
Inventor： Patrick Wellborn , Jason Mitchell , Robert Webster, III
IPC: F16D57/00 , F16D121/20 , F16D131/00
CPC classification number: F16D57/002 , F16D2121/20 , F16D2131/00
Abstract: This disclosure relates to a magnetorheological (MR) brake. The MR brake includes a rotor constructed at least partially of a ferromagnetic material, and a housing that supports the rotor such that the rotor and the housing are rotatable relative to each other about an axis, wherein the housing and rotor are configured such that a fluid gap is defined between the housing and the rotor, and wherein portions of the housing adjacent the rotor are constructed at least partially of a ferromagnetic material. An MR fluid is disposed in the fluid gap. A current-carrying coil is excitable to generate a magnetic field within ferromagnetic portions of the rotor and the housing and acts on the MR fluid. At least one element constructed of a material having low magnetic permeability is configured route the lines of magnetic flux through surrounding higher permeability material on opposite sides of the fluid gap.
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公开(公告)号：US09803758B2
公开(公告)日：2017-10-31
申请号：US14758302
申请日：2013-12-31
Applicant: VANDERBILT UNIVERSITY
Inventor： Michael Goldfarb , Jason Mitchell
CPC classification number: F16K11/07 , F15B13/0402 , F15B2013/0412 , F16K31/0613
Abstract: A directional-control valve is typically comprised of a valve spool that slides linearly within a valve body. The valve body typically includes five internal ports, which are covered or exposed as the spool slides within the body. The typical five-internal-port architecture precludes certain combinations of port connectivity when the spool is in the center position. For example, when the spool is in the center position, providing connectivity between the actuator ports, while simultaneously providing fluid isolation of the supply and exhaust ports, is not directly achievable with a standard five-port architecture. This application describes three embodiments that enable the aforementioned port connectivity when the spool is in the center position.
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公开(公告)号：US20160287414A1
公开(公告)日：2016-10-06
申请号：US15180617
申请日：2016-06-13
Applicant: Vanderbilt University
Inventor： Michael Goldfarb , Jason Mitchell , Huseyin Atakan Varol , Brian Edward Lawson , Don Truex
CPC classification number: A61F2/70 , A61F2/60 , A61F2/644 , A61F2/66 , A61F2/6607 , A61F2/68 , A61F2/76 , A61F2002/6614 , A61F2002/6621 , A61F2002/6642 , A61F2002/6664 , A61F2002/701 , A61F2002/704 , A61F2002/762 , A61F2002/7635 , G01L1/142 , G01L1/2243
Abstract: A device includes a first member and a second member disposed in series along a longitudinal axis. The device also includes links coupling first joints of the first member to second joints of the second member. The first and second members and the links arranged to define a planar parallelogram linkage. The devices also include a resilient element disposed between the first member and the second member, the first member and the second member preloaded against the resilient element. The first member and the second member are preloaded to provide an arrangement of the first and the second joints in which a motion of the first joints with respect to the second joints is constrained to a direction substantially parallel to the longitudinal axis. The devices further include a sensor for generating a signal indicating a separation between the first member and the second member.
Abstract translation: 一种装置包括沿着纵向轴线串联布置的第一构件和第二构件。 该装置还包括将第一构件的第一接头连接到第二构件的第二接头的连接件。 第一和第二构件和连接件布置成限定平面平行四边形连杆。 这些装置还包括设置在第一构件和第二构件之间的弹性元件，第一构件和预先抵靠弹性元件的第二构件。 第一构件和第二构件被预加载以提供第一和第二接头的布置，其中第一接头相对于第二接头的运动被约束到基本上平行于纵向轴线的方向。 所述装置还包括用于产生指示所述第一构件和所述第二构件之间的间隔的信号的传感器。
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Patent Agency Ranking
4.发明申请POWERED LEG PROSTHESIS AND CONTROL METHODOLOGIES FOR OBTAINING NEAR NORMAL GAIT 审中-公开用于获取近似正常血糖的动力眼球预测和控制方法公开(公告)号：US20160242936A1
公开(公告)日：2016-08-25
申请号：US14885151
申请日：2015-10-16
Applicant: VANDERBILT UNIVERSITY
Inventor： Michael Goldfarb , Huseyin Atakan Varol , Frank Charles Sup, IV , Jason Mitchell , Thomas J. Withrow
CPC classification number: A61F2/60 , A61F2/64 , A61F2/6607 , A61F2/68 , A61F2/70 , A61F2002/30359 , A61F2002/5073 , A61F2002/6642 , A61F2002/665 , A61F2002/6657 , A61F2002/6836 , A61F2002/701 , A61F2002/704 , A61F2002/705 , A61F2002/7625 , A61F2002/7635 , A61F2002/764 , A61F2002/7645 , A61F2002/768 , A61F2220/0033
Abstract: A powered leg prosthesis including a powered knee joint with a knee joint and a knee motor unit for delivering power to the knee joint, a powered ankle joint coupled to the knee joint including an ankle joint and an ankle motor unit to deliver power to the ankle joint, a prosthetic foot coupled to the ankle joint, a plurality of sensors for measuring a real-time input, and controller for controlling movement of the prosthesis based on the real-time input. In the powered leg prosthesis, at least one of the knee motor unit or the ankle motor unit includes at least one drive stage, where the drive stage includes a rotary element for generating torque and at least one looped element affixed around the rotary element and configured for transmitting the torque to another rotary element coupled to a joint to be actuated.
Abstract translation: 一种动力腿假体，其包括具有膝关节的动力膝关节和用于向膝关节递送动力的膝盖电动机单元，联接到膝关节的动力踝关节，包括踝关节和脚踝马达单元以向踝部输送动力 关节，联接到踝关节的假脚，用于测量实时输入的多个传感器，以及用于基于实时输入来控制假体的运动的控制器。 在动力腿假体中，膝关节运动器单元或脚踝马达单元中的至少一个包括至少一个驱动台，其中驱动平台包括用于产生扭矩的旋转元件和固定在旋转元件周围的至少一个环形元件， 用于将扭矩传递到联接到待致动的接头的另一旋转元件。
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公开(公告)号：US10788133B2
公开(公告)日：2020-09-29
申请号：US15794074
申请日：2017-10-26
Applicant: VANDERBILT UNIVERSITY
Inventor： Michael Goldfarb , Jason Mitchell
Abstract: A directional-control valve is typically comprised of a valve spool that slides linearly within a valve body. The valve body typically includes five internal ports, which are covered or exposed as the spool slides within the body. The typical five-internal-port architecture precludes certain combinations of port connectivity when the spool is in the center position. For example, when the spool is in the center position, providing connectivity between the actuator ports, while simultaneously providing fluid isolation of the supply and exhaust ports, is not directly achievable with a standard five-port architecture. This application describes three embodiments that enable the aforementioned port connectivity when the spool is in the center position.
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公开(公告)号：US10111762B2
公开(公告)日：2018-10-30
申请号：US15180617
申请日：2016-06-13
Applicant: Vanderbilt University
Inventor： Michael Goldfarb , Jason Mitchell , Huseyin Atakan Varol , Brian Edward Lawson , Don Truex
Abstract: A device includes a first member and a second member disposed in series along a longitudinal axis. The device also includes links coupling first joints of the first member to second joints of the second member. The first and second members and the links arranged to define a planar parallelogram linkage. The devices also include a resilient element disposed between the first member and the second member, the first member and the second member preloaded against the resilient element. The first member and the second member are preloaded to provide an arrangement of the first and the second joints in which a motion of the first joints with respect to the second joints is constrained to a direction substantially parallel to the longitudinal axis. The devices further include a sensor for generating a signal indicating a separation between the first member and the second member.
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公开(公告)号：US09599248B2
公开(公告)日：2017-03-21
申请号：US14758317
申请日：2013-12-31
Applicant: VANDERBILT UNIVERSITY
Inventor： Michael Goldfarb , Jason Mitchell
IPC: F16K31/06 , F16K1/12 , F16K31/383 , F16K47/00 , F16K29/00 , F16K11/07 , F15B13/04 , F16K31/363
CPC classification number: F16K31/0689 , F15B13/0402 , F15B13/0407 , F15B2211/30525 , F15B2211/329 , F15B2211/7053 , F16K1/123 , F16K11/07 , F16K29/00 , F16K31/0613 , F16K31/363 , F16K31/383 , F16K47/00 , Y10T137/7762 , Y10T137/86582 , Y10T137/8663 , Y10T137/8671 , Y10T137/86879
Abstract: A mechanism for implementing a delay in a directional control valve in the movement of a valve spool within a valve body from a first position of the spool to a second position of the spool.
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公开(公告)号：US10959862B2
公开(公告)日：2021-03-30
申请号：US16173519
申请日：2018-10-29
Applicant: VANDERBILT UNIVERSITY
Inventor： Michael Goldfarb , Jason Mitchell , Huseyin Atakan Varol , Brian Lawson , Don Truex
Abstract: A device includes a first member and a second member disposed in series along a longitudinal axis. The device also includes links coupling first joints of the first member to second joints of the second member. The first and second members and the links arranged to define a planar parallelogram linkage. The devices also include a resilient element disposed between the first member and the second member, the first member and the second member preloaded against the resilient element. The first member and the second member are preloaded to provide an arrangement of the first and the second joints in which a motion of the first joints with respect to the second joints is constrained to a direction substantially parallel to the longitudinal axis. The devices further include a sensor for generating a signal indicating a separation between the first member and the second member.
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