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    Wetness monitoring system
    1.
    发明授权
    Wetness monitoring system 失效
    湿度监测系统

    公开(公告)号：US07250547B1

    公开(公告)日：2007-07-31

    申请号：US09707610

    申请日：2000-11-07

    申请人： Christopher M. Hofmeister ,  David A. Lange ,  Charles B. Kendall ,  John G. Schmidt

    发明人： Christopher M. Hofmeister ,  David A. Lange ,  Charles B. Kendall ,  John G. Schmidt

    IPC分类号： A61F13/15 ,  G08B23/00 ,  G08B21/00

    CPC分类号： A61F13/42 ,  G01N27/121

    摘要： The present invention relates to a wetness monitoring system that includes a data collection device that sends wetness measurement data to a central computer that detects changes in wetness measurement data caused by the presence of urine or other dielectric fluids. The data collection device includes a semi-reusable sensor and reusable data collector that are worn on a garment of the person. The data collector includes an internal power source so that the person can live a normal ambulatory life. The data collector has an electrical circuit that uses the changing resistance characteristics in the sensor to gather wetness measurement data. The data collector periodically generates and transmits a signal containing the actual wetness measurement data. The signals are coded to identify the particular data collector or person sending the signal. The data collector is programmed to conserve power by sending signals less frequently during periods when the sensor is clearly dry. Signals are sent more frequently when the sensor is damp or a wetness event may have occurred. The central computer receives the signals containing the wetness measurement data and compares the measurement data to an adjustable wetness sensitivity level to determine if a wetness event has occurred. When the central computer determines that a wetness event has occurred, the computer displays the name of the particular person wearing the data collector and the approximate time that the wetness event occurred. The system then pages an appropriate healthcare worker to inform them that the particular individual needs attention and tracks the approximate response times to ensure that the patient is continuously receiving prompt care.

    摘要翻译： 湿度监测系统技术领域本发明涉及一种湿度监测系统，其包括：数据收集装置，其将湿度测量数据发送到中央计算机，其检测由尿液或其它介电流体的存在引起的湿度测量数据的变化。 数据采集​​装置包括穿戴在人的衣服上的半可再用传感器和可重复使用的数据收集器。 数据采集​​器包括一个内部电源，使人能够正常行走。 数据采集​​器具有使用传感器中电阻变化特性的电路来收集湿度测量数据。 数据收集器周期性地产生并发送包含实际湿度测量数据的信号。 信号被编码以识别发送信号的特定数据收集器或人。 数据采集​​器被编程为通过在传感器清洁干燥的时段期间较少频率地发送信号来节省功率。 当传感器潮湿或可能发生潮湿事件时，信号会更频繁地发送。 中央计算机接收含有湿度测量数据的信号，并将测量数据与可调湿度敏感度水平进行比较，以确定是否发生了湿度事件。 当中央计算机确定发生湿度事件时，计算机显示佩戴数据收集器的特定人物的名称以及湿度事件发生的大致时间。 然后，系统向适当的医护人员提供通知，告诉他们特定个人需要注意并跟踪大致的响应时间，以确保患者持续接受提示。

    Ball nut and screw assemblies and methods of attaching extensions or housings to the ball nuts thereof
    3.
    发明授权
    Ball nut and screw assemblies and methods of attaching extensions or housings to the ball nuts thereof 失效
    滚珠螺母和螺丝组件以及将延伸件或外壳附接到其球螺母的方法

    公开(公告)号：US5485760A

    公开(公告)日：1996-01-23

    申请号：US240132

    申请日：1994-05-10

    申请人： David A. Lange

    发明人： David A. Lange

    IPC分类号： F16H25/22 ,  F16H25/24

    CPC分类号： F16H25/2204 ,  F16H25/24 ,  Y10T403/12 ,  Y10T74/18592 ,  Y10T74/2151

    摘要： A ball nut and screw assembly with a screw having exterior helical ball carrying groove portions separated by land portions and a co-axial nut having complemental, helical interior ball carrying groove portions separated by land portions with the same lead as said screw groove and land portions has, an end attachment for the nut with a reduced diameter sleeve extending axially therefrom. The sleeve has helical exterior thread portions, of the same lead as the nut groove portions, which are of a matching configuration and are threaded into one end of the nut. The sleeve has an interior diameter which receives and passes the screw without interacting with the screw. A recirculating train of load bearing balls is accommodated within nut and screw groove portions which are axially spaced from the sleeve.

    摘要翻译： 一种具有螺钉的滚珠螺母和螺钉组件，其具有由陆地部分分开的外部螺旋球承载槽部分和具有互补的，螺旋形的内部球承载槽部分的同轴螺母，所述沟槽部分由与所述螺纹槽和陆部分相同的引导部分 具有用于具有从其轴向延伸的直径减小的套筒的螺母的端部附件。 套筒具有螺母外螺纹部分，与螺母槽部分相同的导线部分，其具有匹配构造并且螺纹连接到螺母的一端。 套筒具有内径，该内径接收和通过螺钉而不与螺钉相互作用。 负载轴承滚珠的再循环系列容纳在与套筒轴向间隔开的螺母和螺纹槽部分内。

    Ball nut and screw assembly with backdrive control
    4.
    发明授权
    Ball nut and screw assembly with backdrive control 失效
    滚珠螺母和螺丝组件，带反向驱动控制

    公开(公告)号：US5467661A

    公开(公告)日：1995-11-21

    申请号：US232390

    申请日：1994-04-25

    申请人： David A. Lange

    发明人： David A. Lange

    IPC分类号： F16H25/22 ,  F16H25/24 ,  F16H55/18

    CPC分类号： F16H25/2204 ,  F16H25/2454 ,  Y10T74/18704 ,  Y10T74/19749 ,  Y10T74/19902

    摘要： A ball nut and screw assembly has a backdrive control member that travels with the ball nut and has an internal thread complementary to and engaging the helical ball receiving groove on the screw. The backdrive control member is indexable on the screw relative to the ball nut to adjust the load of a spring that is interposed between the control member and ball nut. The spring acts to urge these components apart and thereby determine the frictional drag of the threaded engagement between the control member and the ball screw. The preload of the spring is set by indexing the control member to effect sufficient drag to prevent axial loads on the nut and screw from causing backdrive translation of the nut. The backdrive control member also removes lash from the ball nut and screw assembly under reversing loads at load magnitudes equal to or less than that produced by the load spring.

    摘要翻译： 滚珠螺母和螺丝组件具有与滚珠螺母一起行进的反向驱动控制构件，并且具有与螺钉上的螺旋球接收槽互补并与其接合的内螺纹。 反向驱动控制构件可相对于滚珠螺母在螺钉上转位，以调节介于控制构件和滚珠螺母之间的弹簧的载荷。 弹簧用于推动这些部件分开，从而确定控制部件和滚珠丝杠之间的螺纹啮合的摩擦阻力。 通过将控制构件分度来实现足够的阻力以防止螺母和螺钉上的轴向负载导致螺母的反向传动平移来设定弹簧的预载荷。 反向驱动控制构件还可以在负载大小等于或小于由负载弹簧产生的载荷大小的反向负载下从滚珠螺母和螺钉组件中除去睫毛。

    Multiple stage, multiple extend, speed reducing ball screw linear actuator and method of constructing and operating the actuator
    5.
    发明授权
    Multiple stage, multiple extend, speed reducing ball screw linear actuator and method of constructing and operating the actuator 失效
    多级，多延伸，减速滚珠丝杠线性执行机构及其构造与运行方法

    公开(公告)号：US06761080B2

    公开(公告)日：2004-07-13

    申请号：US10386776

    申请日：2003-03-12

    申请人： David A. Lange ,  Sid M. Zimmerman

    发明人： David A. Lange ,  Sid M. Zimmerman

    IPC分类号： F16C2702

    CPC分类号： F16H25/22 ,  F16H25/2015 ,  F16H25/2204 ,  Y10T74/18568 ,  Y10T74/18688 ,  Y10T74/19702 ,  Y10T74/19744

    摘要： A multiple extend ball screw and nut linear actuator incorporates a revolvable axially restrained ball screw with a ball nut thereon. A constant speed reversible drive revolves the screw to move the ball nut forwardly and rearwardly. External helical threads of the same hand as the ball nut threads are provided externally on the ball nut but have a substantially reduced lead. A second rotatably restrained nut having threads matching the external threads on the ball nut mounts on the ball nut and connects to the system to be actuated.

    摘要翻译： 多个延伸滚珠丝杠和螺母线性致动器包括一个可旋转的轴向限制的滚珠丝杠，其上有一个滚珠螺母。 恒速可逆驱动器旋转螺丝将球螺母向前和向后移动。 与滚珠螺母螺纹相同的外部螺旋螺纹位于滚珠螺母的外部，但是具有大大减小的引线。 具有与滚珠螺母上的外螺纹匹配的螺纹的第二可旋转限制螺母安装在滚珠螺母上并连接到要致动的系统。