公开(公告)号：US5406827A

公开(公告)日：1995-04-18

申请号：US57878

申请日：1993-05-07

申请人： Willis G. Boyden

发明人： Willis G. Boyden

IPC分类号： A63B51/00 ,  G01L5/04 ,  G01L25/00

CPC分类号： A63B51/005 ,  G01L5/042

摘要： The pitch/tension device is a device to determine the tension, in pounds, in a taut string or strings, such as a tennis racket.There are two methods of determining the tension. In the first method, the pitch/tension device is first adjusted for racket type or size, and string gauge. The racket is then plucked, or otherwise sound, and the audio pitch emanating from the pitch/tension device is adjusted to approximate the pitch of the racket, wherein the tension of the racket is displayed. In the second method, the known racket tension at some previous time, such as at restringing, is set into the pitch/tension device as follows: the racket is plucked, or otherwise sounded, the tone emanating from the pitch/tension device is brought into agreement with the pitch of the plucked strings, the display is adjusted to agree with the known racket tension, and this setting is recorded. The present racket tension is determined by adjusting the pitch/tension device to this setting, plucking the strings, bringing the tone emanating from the pitch/tension device into agreement with the pitch of the plucked strings, and reading the tension on the display.

摘要翻译： 俯仰/张力装置是用于以绷紧的绳子或弦线（例如网球拍）来确定张力的装置。 确定张力有两种方法。 在第一种方法中，首先根据球拍类型或尺寸以及弦线规调整俯仰/张力装置。 球拍然后被拔出或以其他方式发出声音，并且调节从俯仰/张力装置发出的音频音高以接近球拍的俯仰，其中显示球拍的张力。 在第二种方法中，如以下所述，将前一时刻的已知的球拍张力设置到俯仰/张力装置中，如下：球拍被拔出或以其他方式发出，从俯仰/张力装置发出的音调被带到 与采摘的琴弦的音调一致，显示器被调整为与已知的拍子张力一致，并记录该设置。 通过将俯仰/张力装置调节到该设定来确定当前的拍子张力，拔出琴弦，使从音调/张力装置发出的音调与采摘弦的音调一致，并读取显示器上的张力。

公开(公告)号：US5085445A

公开(公告)日：1992-02-04

申请号：US667219

申请日：1991-03-11

申请人： Willis G. Boyden

发明人： Willis G. Boyden

IPC分类号： A63C17/00 ,  A63C17/06 ,  A63C17/16

CPC分类号： A63C17/0046 ,  A63C17/061

摘要： A roller skate has a compression spring for each of a plurality of rollers for passing over relatively rough terrain. A compression rod having a cylindrical top portion bears against the compression spring in each cylindrical hole placed vertically in the skate body. A middle part of the compression rod has flat sides that define a width that is more narrow than the diameter of the cylindrical portion. The lower part of the compression rod is u-shaped and contains the roller, roller axle, and roller bearings. The upper rod fits comfortable in the vertical hole and is held in the skate body by lateral plates adjacent the flat sides of the middle portion of the compression rods.

摘要翻译： 滚轮溜冰鞋具有用于多个滚子中的每一个的压缩弹簧，用于穿越相对崎岖的地形。 具有圆柱形顶部的压缩杆在垂直放置在溜冰鞋体内的每个圆柱形孔中抵靠压缩弹簧。 压缩杆的中间部分具有限定比圆柱形部分的直径更窄的宽度的平坦侧面。 压缩杆的下部为u形，包含滚子，滚子轴和滚子轴承。 上杆适合垂直孔舒适，并通过与压缩杆中部的平坦侧面相邻的侧板保持在溜冰体内。

公开(公告)号：US5120070A

公开(公告)日：1992-06-09

申请号：US669471

申请日：1991-03-14

申请人： Willis G. Boyden

发明人： Willis G. Boyden

IPC分类号： B62B15/00

CPC分类号： B62B15/001 ,  B62B15/004

摘要： The adjustable windmobile allows the mobilist to maintain a stable center of gravity by manually adjusting both the seat and mast to their respective opposite sides when the direction of motion of the windmobile is reversed. Both the seat and mast base are encased in crosspieces, that are part of the frame, that allow the seat and mast to be slid to the opposite sides. There are four mast halyards, a fore halyard, a stern halyard, and two midships halyards. Under sail only three halyards are taut while the fourth, a midships halyard hangs loose. When readjusting the mast to the other side, the halyards do not have to be readjusted.

摘要翻译： 当风车的运动方向相反时，可调节的风车允许动员者通过手动地将座椅和桅杆调节到它们各自的相对侧来保持稳定的重心。 座椅和桅杆座都被包围在框架中，这是框架的一部分，允许座椅和桅杆滑动到相对的两侧。 有四个桅杆halyards，一个前哨，一个严厉的仓库和两个中卫的哈尔。 在风帆下，只有三个哈尔马斯绷紧，而第四个，一个中s宿舍松动。 将桅杆重新调整到另一侧时，无需重新调整。

公开(公告)号：US4037194A

公开(公告)日：1977-07-19

申请号：US641662

申请日：1975-12-17

申请人： Willis G. Boyden ,  Richard A. Shaw

发明人： Willis G. Boyden ,  Richard A. Shaw

IPC分类号： B60R25/10

CPC分类号： B60R25/1004

摘要： The alarm circuit is for detecting the theft of a vehicle and receives its power from the vehicle storage battery. The grounded battery cable is passed through a ferromagnetic toroid having one or more turns of wire wound thereon. An oscillator circuit couples to the toroid and establishes an AC voltage across the coil of wire. If the vehicle is entered the grounded battery cable draws current either from an illuminated light or from the ignition circuit causing a decrease in the voltage across the coil. This decrease in voltage is detected and an alarm is generated.

摘要翻译： 报警电路用于检测车辆的盗窃并从车辆蓄电池接收电力。 接地的电池电缆穿过其上缠绕有一圈或更多匝的铁磁环圈。 振荡器电路耦合到环形线圈，并在线圈线圈之间建立交流电压。 如果车辆进入，接地的电池电缆从照明灯或点火电路中吸取电流，导致线圈两端的电压降低。 检测到电压的下降，产生警报。