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    Releasable fastener system
    2.
    发明授权
    Releasable fastener system 有权
    可拆卸紧固件系统

    公开(公告)号：US07146690B2

    公开(公告)日：2006-12-12

    申请号：US10305375

    申请日：2002-11-26

    申请人： Thomas B. Stanford, Jr. ,  Alan L. Browne ,  Nancy L. Johnson ,  Leslie A. Momoda ,  William Barvosa-Carter ,  Bob R. Powell, Jr.

    发明人： Thomas B. Stanford, Jr. ,  Alan L. Browne ,  Nancy L. Johnson ,  Leslie A. Momoda ,  William Barvosa-Carter ,  Bob R. Powell, Jr.

    IPC分类号： B23P19/04 ,  A44B21/00

    CPC分类号： F16B1/0014 ,  A41D2300/326 ,  A44B18/0003 ,  A44B18/0096 ,  A44D2203/00 ,  C08L2201/12 ,  F16B5/07 ,  F16B2001/0028 ,  F16B2001/0035 ,  F16F2224/045 ,  Y10T24/27 ,  Y10T24/2783 ,  Y10T428/24017

    摘要： A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof, wherein the plurality of hook elements comprises or incorporates a shape memory alloy fiber. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. Introducing a thermal activation signal to the plurality of hook elements causes a change in shape orientation, flexural modulus property, or a combination thereof that effectively reduces the shear and/or pull off forces in the releasable engagement. In this manner, disengagement of the releasable fastener system provides separation of the hook portion from the loop portion under controlled conditions. Also disclosed herein are processes for operating the releasable fastener system.

    摘要翻译： 可释放的紧固件系统包括环部分和钩部分。 环路部分包括支撑件和设置在其一侧的环形材料。 钩部通常包括支撑件和从其一侧延伸的多个紧密间隔的直立钩元件，其中多个钩元件包括或结合形状记忆合金纤维。 当钩部和环部被压在一起时，它们互锁以形成可释放的接合。 通过接合产生的所得到的接头相对于剪切力和拉力相对地抵抗并且剥离强度力弱。 向多个钩元件引入热激活信号导致形状取向，挠曲模量特性或其组合的改变，其有效地减少了可释放接合中的剪切力和/或拉拔力。 以这种方式，可释放的紧固件系统的分离在受控条件下提供了钩部分与环部分的分离。 本文还公开了用于操作可释放紧固件系统的方法。

    Releasable fastener system
    3.
    发明授权
    Releasable fastener system 有权
    可拆卸紧固件系统

    公开(公告)号：US06815873B2

    公开(公告)日：2004-11-09

    申请号：US10305422

    申请日：2002-11-26

    申请人： Nancy L. Johnson ,  Alan L. Browne ,  William Barvosa-Carter ,  Leslie A. Momoda ,  Thomas B. Stanford

    发明人： Nancy L. Johnson ,  Alan L. Browne ,  William Barvosa-Carter ,  Leslie A. Momoda ,  Thomas B. Stanford

    IPC分类号： H01L4108

    CPC分类号： A44B18/0003 ,  A41D2300/326 ,  A44B18/0007 ,  A44B18/0096 ,  A44D2203/00 ,  B64C33/02 ,  C08L2201/12 ,  F16B1/0014 ,  F16B5/07 ,  F16B2001/0028 ,  F16B2001/0035 ,  F16F2224/045

    摘要： A releasable fastener system comprises a male portion and a female portion. The male portion comprises a support and at least one protrusion element fixedly attached to the support. The female portion comprises a support and at least two parallel actuator strips projecting from a surface of the support. The at least two parallel actuator strips are spaced apart to form an opening equal to or less than a lateral dimension of the protrusion element. Each one of the at least two parallel actuator strips comprise a flexible strip and a piezoelectric material disposed on portions of the actuator strip. An activation device is coupled to the at least two actuator strips, the activation device being operable to selectively provide an activation signal to the piezoelectric material. In this manner, the shape of the actuator strips can be changed to provide a mechanical engagement of a frictional engagement of the male and female portions.

    摘要翻译： 可释放的紧固件系统包括阳部分和阴部分。 阳部分包括支撑件和固定地附接到支撑件的至少一个突出元件。 阴部分包括支撑件和从支撑件的表面突出的至少两个平行的致动器条。 至少两个平行的致动器条带间隔开以形成等于或小于突出元件的横向尺寸的开口。 所述至少两个平行致动器条中的每一个包括柔性条和设置在所述致动器条的部分上的压电材料。 激活装置耦合到至少两个致动器条，激活装置可操作以选择性地向压电材料提供激活信号。 以这种方式，可以改变致动器条的形状以提供阳部和阴部之间的摩擦接合的机械接合。

    Releasable fastener systems and processes
    4.
    发明授权
    Releasable fastener systems and processes 有权
    可释放的紧固件系统和工艺

    公开(公告)号：US07308738B2

    公开(公告)日：2007-12-18

    申请号：US10337238

    申请日：2003-01-06

    申请人： William Barvosa-Carter ,  Alan L. Browne ,  Nancy L. Johnson ,  Leslie A. Momoda ,  Thomas B. Stanford

    发明人： William Barvosa-Carter ,  Alan L. Browne ,  Nancy L. Johnson ,  Leslie A. Momoda ,  Thomas B. Stanford

    IPC分类号： B23P19/04 ,  A44B21/00

    CPC分类号： A44B18/0007 ,  A41D2300/326 ,  A44B18/0003 ,  A44B18/0096 ,  A44D2203/00 ,  B64C33/02 ,  C08L2201/12 ,  F16B1/0014 ,  F16B5/07 ,  F16B2001/0028 ,  F16B2001/0035 ,  F16F2224/045 ,  Y10T24/27 ,  Y10T24/2742 ,  Y10T428/24017

    摘要： A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof, wherein the plurality of hook elements comprises or incorporates a shape memory polymer. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. Introducing a thermal activation signal to the plurality of hook elements causes a change in shape orientation and/or flexural modulus that effectively reduces the shear and/or pull off forces in the releasable engagement. In this manner, disengagement of the releasable fastener system provides separation of the hook portion from the loop portion under controlled conditions. Also disclosed herein are processes for operating the releasable fastener system.

    摘要翻译： 可释放的紧固件系统包括环部分和钩部分。 环路部分包括支撑件和设置在其一侧的环形材料。 钩部通常包括支撑件和从其一侧延伸的多个紧密间隔的直立钩元件，其中多个钩元件包括或结合形状记忆聚合物。 当钩部和环部被压在一起时，它们互锁以形成可释放的接合。 通过接合产生的所得到的接头相对于剪切力和拉力相对地抵抗并且剥离强度力弱。 向多个钩元件引入热激活信号导致形状取向和/或弯曲模量的变化，其有效地减少可释放接合中的剪切力和/或拉力。 以这种方式，可释放的紧固件系统的分离在受控条件下提供了钩部分与环部分的分离。 本文还公开了用于操作可释放紧固件系统的方法。

    Airflow control devices based on active materials
    8.
    发明授权
    Airflow control devices based on active materials 有权

    公开(公告)号：US07854467B2

    公开(公告)日：2010-12-21

    申请号：US12174035

    申请日：2008-07-16

    申请人： Geoffrey P. McKnight ,  Cameron Massey ,  Guillermo A. Herrera ,  William Barvosa-Carter ,  Nancy L. Johnson ,  Alan L. Browne

    发明人： Geoffrey P. McKnight ,  Cameron Massey ,  Guillermo A. Herrera ,  William Barvosa-Carter ,  Nancy L. Johnson ,  Alan L. Browne

    IPC分类号： B60J9/00

    CPC分类号： B64C23/00 ,  B64C2027/7288 ,  F15D1/10 ,  Y02T50/34

    摘要： An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.

    Airflow control devices based on active materials
    10.
    发明授权
    Airflow control devices based on active materials 有权
    基于活性物质的气流控制装置

    公开(公告)号：US07703839B2

    公开(公告)日：2010-04-27

    申请号：US11086470

    申请日：2004-11-05

    申请人： Geoffrey P. McKnight ,  Cameron Massey ,  Guillermo A. Herrera ,  William Barvosa-Carter ,  Nancy L. Johnson ,  Alan L. Browne

    发明人： Geoffrey P. McKnight ,  Cameron Massey ,  Guillermo A. Herrera ,  William Barvosa-Carter ,  Nancy L. Johnson ,  Alan L. Browne

    IPC分类号： B62D35/00

    CPC分类号： B60K11/085 ,  B60H2001/00092 ,  B62D35/00 ,  B64C23/00 ,  B64C2027/7288 ,  F15D1/10 ,  Y02T10/88 ,  Y02T50/34

    摘要： An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.

    摘要翻译： 气流控制装置包括与主体可操作地连通的主体和活动材料。 诸如形状记忆材料的活性材料可操作以响应于激活信号改变至少一个属性。 活性材料可以改变其形状，尺寸和/或刚度，从而产生气流控制装置的至少一个特征的变化，例如形状，尺寸，位置，取向和/或刚度，以控制车辆气流，以更好地适应驾驶中的变化 条件如天气，离地间隙和速度，同时减少维护和故障模式的水平。 因此，该装置由于不足的离地间隙而减少车辆损坏，同时提高车辆稳定性和燃料经济性。 可以使用激活装置，控制器和传感器来进一步控制气流控制装置的至少一个特征的变化，例如装置的形状，尺寸，位置，取向和/或刚度。 用于控制车辆气流的方法选择性地引入激活信号以启动在停止激活信号时可以反转的装置的至少一个特征的改变。