公开(公告)号：US6095547A

公开(公告)日：2000-08-01

申请号：US110629

申请日：1998-07-06

Applicant: James A. Vandergrift ,  Anthony O. DeRocco ,  Bard Glenne ,  Shane M. K. Sterling

Inventor： James A. Vandergrift ,  Anthony O. DeRocco ,  Bard Glenne ,  Shane M. K. Sterling

IPC: A63C5/00 ,  A63C5/075 ,  A63C9/00 ,  A63C5/07

CPC classification number: A63C9/00 ,  A63C5/075

Abstract: A board, such as a ski or snowboard, that includes a piezoelectric damper. A sensor such as a piece of piezoelectric material is located on the body of the board such that, as the board vibrates or deforms, the piezoelectric sensor is also deformed. As the piezoelectric sensor deforms, it produces an electrical signal that is provided to a control circuit. The control circuit receives the electrical signal and generates a control signal of proportional amplitude and frequency, but an inverse waveform to the sensed vibration. The control signal causes a piezoelectric damper to stiffen and resist deformation of the board, thus damping the vibration. The sensed signal may also be stored within a memory device and subsequently downloaded to provide a skier profile for analysis.

Abstract translation: 包括压电阻尼器的板，例如滑雪板或滑雪板。 诸如一片压电材料的传感器位于板的主体上，使得当板振动或变形时，压电传感器也变形。 当压电传感器变形时，其产生提供给控制电路的电信号。 控制电路接收电信号并产生一个比例幅度和频率的控制信号，但是与感测到的振动成反比。 控制信号使压电阻尼器加强并抵抗板的变形，从而阻尼振动。 感测到的信号也可以存储在存储器装置内并随后下载以提供用于分析的滑雪者轮廓。

公开(公告)号：US5996745A

公开(公告)日：1999-12-07

申请号：US857125

申请日：1997-05-15

Applicant: Edward C. Jones, Jr. ,  Robert H. Girvin ,  James A. Vandergrift

Inventor： Edward C. Jones, Jr. ,  Robert H. Girvin ,  James A. Vandergrift

IPC: B60G17/015 ,  B60G17/019 ,  B62K25/28 ,  F16F9/46 ,  F16D57/00

CPC classification number: F16F9/46 ,  B60G17/01941 ,  B62K25/286

Abstract: A shock absorber for a vehicle includes a fluid-filled cylinder having a closed end, a shaft extending partially into the cylinder, a valve attached to the first end of the shaft, and a power supply. The valve includes a valve piston and a bender. The valve piston includes at least one orifice extending therethrough. The bender is seated adjacent the orifice in the piston. The bender includes a piezoelectric material embedded therein. The piezoelectric material includes sides with conductive material disposed thereon. The power supply is attached to the conductive material across the piezoelectric material in the bender to apply a voltage across the piezoelectric material to change the stiffness of the bender. A sensor is also included for monitoring the displacement and velocity of the piston within the fluid-filled cylinder. The biasing force on the bender is changed on sensor readings according to predetermined logic sequence.

Abstract translation: 用于车辆的减震器包括具有闭合端的流体填充的气缸，部分地延伸到气缸中的轴，附接到轴的第一端的阀和电源。 该阀包括阀活塞和弯管器。 阀活塞包括延伸穿过其中的至少一个孔。 弯管机位于活塞的孔口附近。 弯曲机包括嵌入其中的压电材料。 压电材料包括设置在其上的导电材料的侧面。 电源通过弯曲机中的压电材料连接到导电材料上，以在压电材料上施加电压以改变弯曲机的刚度。 还包括一个传感器，用于监测流体填充的气缸内活塞的位移和速度。 弯曲机上的偏置力根据预定的逻辑顺序改变传感器读数。

公开(公告)号：US6048276A

公开(公告)日：2000-04-11

申请号：US105762

申请日：1998-06-26

Applicant: James A. Vandergrift

Inventor： James A. Vandergrift

IPC: A63B53/08 ,  A63B53/10 ,  A63R53/10 ,  A63R53/12

CPC classification number: A63B53/10 ,  A63B53/08

Abstract: A golf club shaft (10) incorporating a piezoelectric device (12) which, upon deflection or deformation of the golf club shaft (10) caused by swinging of the golf club shaft, selectively stiffens a section of the golf club shaft. The piezoelectric device (12), includes a sensor (24) located along the golf club shaft (10) and configured such as to produce an electrical signal upon flexing of the golf club shaft. A piezoelectric stiffener (22) is electrically connected to the sensor (24), is located along the golf club shaft (10), and is designed to mechanically deform as a result of receiving the electrical signal from the sensor (24). The mechanical deformation of the piezoelectric stiffener (22) causes a corresponding deformation of the golf club shaft (10).

Abstract translation: 一种包括压电装置（12）的高尔夫球杆杆（10），其在由高尔夫球杆杆的摆动引起的高尔夫球杆杆（10）的偏转或变形时选择性地加固高尔夫球杆杆的一部分。 压电装置（12）包括沿着高尔夫球杆杆（10）定位的传感器（24），并被配置为在高尔夫球杆杆的弯曲时产生电信号。 压电加强件（22）电连接到传感器（24），沿着高尔夫球杆杆（10）定位，并被设计成由于接收来自传感器（24）的电信号而机械地变形。 压电加强件（22）的机械变形引起高尔夫球杆杆（10）的相应变形。

公开(公告)号：US06227622B1

公开(公告)日：2001-05-08

申请号：US08879951

申请日：1997-06-20

Applicant: John A. Roderick ,  Albert C. Chiang ,  James A. Vandergrift

Inventor： John A. Roderick ,  Albert C. Chiang ,  James A. Vandergrift

IPC: B60B710

CPC classification number: A63C17/223

Abstract: A skate wheel and method of making the same are provided. The skate wheel includes multiple materials of differing durometers disposed on an inner hub. First, a solid or microcellular urethane is seated on an outer rim of the hub in a ring configuration around the rim. A urethane tire material surrounds the ring. The outer tire material is constructed preferably of a urethane that is more durable and harder than the ring. The ring is made of a highly resilient urethane for high speed. A wheel also is provided with energy absorption to counter rough road surfaces with less loss of energy by the skater, while increasing the traction of the skate wheel on the surface. A method is also provided of making a wheel by pouring differing resins into a mold and either spinning or separating the resins while allowing their interfaces to cure together for bonding therebetween.

Abstract translation: 提供了滑冰轮及其制作方法。 滑冰轮包括设置在内毂上的不同硬度的多种材料。 首先，将固体或微孔聚氨酯以轮缘周围的环形配置在轮毂的外缘上。 聚氨酯轮胎材料围绕环。 外轮胎材料优选由比该环更耐用且更硬的氨基甲酸酯构成。 该环由高弹性聚氨酯制成，速度快。 车轮还具有能量吸收，以抵抗粗糙的路面，同时溜冰者的能量损失较少，同时增加了滑冰轮在表面上的牵引力。 还提供了一种制造车轮的方法，即将不同的树脂浇注到模具中，并且将树脂旋转或分离，同时允许它们的界面固化在一起以在它们之间进行粘结。

公开(公告)号：US06226898B1

公开(公告)日：2001-05-08

申请号：US09322206

申请日：1999-05-28

Applicant: Alan M. Trimble ,  James A. Vandergrift

Inventor： Alan M. Trimble ,  James A. Vandergrift

IPC: A61F514

CPC classification number: A43B7/125 ,  A43B3/0047 ,  A43B5/04 ,  A43B5/0405 ,  A43B5/0409 ,  A43B5/049

Abstract: A downhill ski boot (10) includes an inner shell (14) that is secured within a substantially rigid outer shell (12). The outer shell has a base (18) and an ankle cuff (20). The base includes a sidewall portion (24) having medial and lateral sides, with a longitudinal gap (32) being defined therebetween which exposes the inner shell. The inner shell also receives a removable liner (16). The outer shell may be secured by fasteners to closely conform the inner shell and liner about the foot. The ankle cuff and base are reinforced by a segmented strut to aid in transfer of force from the lower leg to the ski.

Abstract translation: 下坡滑雪靴（10）包括固定在基本上刚性的外壳（12）内的内壳（14）。 外壳具有基部（18）和踝箍（20）。 基部包括具有中间和侧面的侧壁部分（24），其间限定有间隙（32），其暴露内壳。 内壳还接收可拆卸衬套（16）。 外壳可以通过紧固件固定以使内壳和衬垫围绕脚紧密地一致。 脚踝和底座由分段支柱加固，以帮助将力从小腿转移到滑雪板。

公开(公告)号：US5775715A

公开(公告)日：1998-07-07

申请号：US509970

申请日：1995-08-01

Applicant: James A. Vandergrift

Inventor： James A. Vandergrift

IPC: A63C5/075 ,  A63C9/00 ,  A63C5/07

CPC classification number: A63C5/075 ,  A63C9/00

Abstract: A board, such as a ski or snowboard, that includes a piezoelectric damper. The piezoelectric damper is located on the body of the board such that, as the board vibrates or deforms, the piezoelectric material is also deformed. As the piezoelectric material deforms, it produces an electrical signal that is provided to a control circuit. The control circuit receives the electrical signal and either provides a resistance to the electrical signal or provides a control signal to the piezoelectric material. The resulting resistance or control signal causes the piezoelectric material to resist the deformation of the board, thus acting as a damper. The piezoelectric damper may be located between the bindings on the board, or may be located in front of the forward binding, behind the aft binding, or in more than one location. In the preferred embodiment, the piezoelectric damper is formed of one or more layers of piezoelectric material on which an electrical grid has been mounted. The piezoelectric material and electrical grid are encapsulated within an organic matrix, such as an epoxy or plastic resin.

Abstract translation: 包括压电阻尼器的板，例如滑雪板或滑雪板。 压电阻尼器位于板的主体上，使得当板振动或变形时，压电材料也变形。 当压电材料变形时，它产生提供给控制电路的电信号。 控制电路接收电信号并且提供对电信号的电阻或向压电材料提供控制信号。 所产生的电阻或控制信号导致压电材料抵抗板的变形，从而用作阻尼器。 压电阻尼器可以位于板上的绑定之间，或者可以位于前绑带的前面，后绑定之后，或在多于一个位置。 在优选实施例中，压电阻尼器由一层或多层压电材料形成，其上安装有电网。 压电材料和电网被包封在有机基质中，例如环氧树脂或塑料树脂。