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21. 发明申请

US20120280464A1 ADJUSTABLE LOAD-BEARING WHEELS AND KITS FOR PATIENT LIFTERS 审中-公开
标题翻译：可调负荷轴承轮和病人的病人
公开(公告)号：US20120280464A1
公开(公告)日：2012-11-08
申请号：US13443605
申请日：2012-04-10
申请人： Richard L. Nelson , Robert M. Levy
发明人： Richard L. Nelson , Robert M. Levy
IPC分类号： B60B33/04
CPC分类号： A61G7/1067 , A61G7/1003 , A61G7/1017 , A61G7/1046
摘要： Embodiments of the present disclosure include adjustable wheel assemblies for patient lifts. Actuation of a wheel assembly results in the wheel exerting an increased force on the surface supporting the patient lift, which may decrease the pressure of the remaining patient lift wheels on the support surface. Alternate embodiments include one or more adjustable wheel assemblies in a kit for attachment to a patient lift. A user input component may also be included to provide a single device a user can use to simultaneously actuate the wheel assemblies. Alternate embodiments utilize wedges, hinges, cams, and/or threaded members to increase the force exerted by the wheel on the support surface.
摘要翻译：本公开的实施例包括用于患者升降机的可调轮组件。车轮组件的致动导致车轮在支撑病人升力的表面上施加增加的力，这可能降低支撑表面上剩余的患者提升轮的压力。替代实施例包括用于附接到患者升降机的套件中的一个或多个可调轮组件。还可以包括用户输入组件以提供用户可以使用的单个设备来同时致动轮组件。替代实施例利用楔形物，铰链，凸轮和/或螺纹构件来增加由轮施加在支撑表面上的力。

22. 发明授权

US08217782B2 Industrial field device with reduced power consumption 有权
标题翻译：工业现场设备功耗降低
公开(公告)号：US08217782B2
公开(公告)日：2012-07-10
申请号：US11805728
申请日：2007-05-24
申请人： Richard L. Nelson , Eric R. Lovegren , James A. Johnson
发明人： Richard L. Nelson , Eric R. Lovegren , James A. Johnson
IPC分类号： G08B1/08
CPC分类号： G05B19/042 , G05B2219/25282 , G05B2219/25286
摘要： A field device for use in monitoring or controlling an industrial process includes two wire process control loop electrical connections. Digital communications monitoring circuitry coupled to the electrical connections and is configured to control power to the field device electrical circuitry in response to a digital signal on the two wire process control loop.
摘要翻译：用于监测或控制工业过程的现场设备包括两线制过程控制回路电连接。耦合到电连接的数字通信监控电路，并被配置为响应于两线制过程控制回路上的数字信号来控制对现场设备电路的电力。

23. 发明授权

US07109883B2 Low power physical layer for a bus in an industrial transmitter 有权
标题翻译：用于工业变送器中总线的低功率物理层
公开(公告)号：US07109883B2
公开(公告)日：2006-09-19
申请号：US10236874
申请日：2002-09-06
申请人： Steven R. Trimble , Kelly M. Orth , Richard L. Nelson , David G. Tyson
发明人： Steven R. Trimble , Kelly M. Orth , Richard L. Nelson , David G. Tyson
IPC分类号： H04B1/38
CPC分类号： G01D11/24
摘要： A process variable transmitter connects a serial bus to an accessory load. A supply limiter circuit provides a first supply current limit and provides a stored energy output. A recessive driver circuit draws a drive current from the stored energy output and couples the drive current to the serial bus. The recessive driver circuit provides a drive current limit. A dominant driver circuit has a dominant state in which it conducts the drive current, and an inactive state in which the drive current is available to the accessory load.
摘要翻译：过程变量变送器将串行总线连接到附件负载。电源限制器电路提供第一电源电流限制并提供存储的能量输出。隐性驱动器电路从存储的能量输出中抽取驱动电流并将驱动电流耦合到串行总线。隐性驱动器电路提供驱动电流限制。主驱动器电路具有导通驱动电流的主导状态，以及驱动电流对附件负载可用的无效状态。

24. 发明授权

US5672975A Two-wire level transmitter 失效
标题翻译：双线液位变送器
公开(公告)号：US5672975A
公开(公告)日：1997-09-30
申请号：US486649
申请日：1995-06-07
申请人： John A. Kielb , Richard L. Nelson , Scott D. Manicor
发明人： John A. Kielb , Richard L. Nelson , Scott D. Manicor
IPC分类号： G01F23/284 , G01S13/10 , G01F23/28
CPC分类号： G01F23/284
摘要： A level transmitter for use in a process application measures height of a product in a tank. The level transmitter includes a microwave antenna directed into the tank. A low power microwave source sends a microwave signal through the microwave antenna. A low power microwave receiver receives a reflected microwave signal. Measurement circuitry coupled to the source and receiver initiates transmitting of the microwave signal and determines product height based upon the received, reflected signal. Output circuitry coupled to a two-wire process control loop transmits information related to product height over the loop. Power supply circuitry in the level transmitter coupled to the two-wire process control loop receives power from the loop which powers the level transmitter including the microwave source and the microwave receiver.
摘要翻译：用于过程应用的液位变送器可测量油箱中产品的高度。液位变送器包括一个导入油箱的微波天线。低功率微波源通过微波天线发送微波信号。低功率微波接收器接收反射的微波信号。耦合到源和接收器的测量电路启动微波信号的发射并基于所接收的反射信号确定产品高度。耦合到二线过程控制回路的输出电路传输与循环上的产品高度相关的信息。耦合到二线过程控制回路的电平变送器中的电源电路从环路接收功率，该环路为包括微波源和微波接收器的电平变送器供电。

25. 发明授权

US5187474A Digital converter apparatus for improving the output of a two-wire transmitter 失效
标题翻译：数字转换装置，用于改善双线发射机的输出
公开(公告)号：US5187474A
公开(公告)日：1993-02-16
申请号：US188110
申请日：1988-04-28
申请人： John A. Kielb , Richard L. Nelson , David L. Pederson
发明人： John A. Kielb , Richard L. Nelson , David L. Pederson
IPC分类号： G08C19/02
CPC分类号： G08C19/02
摘要： An existing analog two-wire transmitter has a sensor module, an analog excitation circuit, and an analog detector circuit which provides an output representative of a sensed process variable, such as pressure, to a two-wire current loop. The analog detection circuit is removed and replaced with apparatus including a digital converter that digitally calculates the transmitter's output. The output is improved by calculating correction for linearity. The analog excitation circuit may also be replaced with a replacement excitation circuit. The replacement excitation circuit and the digital converter can be energized in series to control energization current. A charge pump can be coupled to the loop to balance the current in the series circuit. The digital converter can also provide electrical span and zero adjustments.
摘要翻译：现有的模拟双线发射机具有传感器模块，模拟激励电路和模拟检测器电路，其向双线电流回路提供表示感测的过程变量（例如压力）的输出。模拟检测电路被去除，并用包括数字计算发射器输出的数字转换器的装置代替。通过计算线性校正来改善输出。也可以用替换激励电路代替模拟激励电路。替代激励电路和数字转换器可以串联通电以控制通电电流。电荷泵可以耦合到回路以平衡串联电路中的电流。数字转换器还可以提供电气跨度和零点调整。

26. 再颁专利

USRE30008E Facsimile apparatus and method of operation 失效
标题翻译：传真机和操作方法
公开(公告)号：USRE30008E
公开(公告)日：1979-05-22
申请号：US777678
申请日：1977-03-15
申请人： Richard L. Nelson
发明人： Richard L. Nelson
IPC分类号： H04N1/00 , H04N1/08
CPC分类号： H04N1/00676 , H04N1/00095 , H04N1/00567 , H04N1/08 , H04N1/0813 , H04N1/0852 , H04N1/0865
摘要： A facsimile transceiver comprising a document/copy receiving drum, a motor for rotation of the drum about the drum axis and a read/write head mounted for linear movement in a direction parallel with the drum axis. When the transceiver is operating in the receive mode, the copy medium having adhesive along at least one edge circumscribes the drum in a closed loop so as to eliminate the necessity for transmitter-receiver angular synchronizing signals which would otherwise be required for locating the copy margin adjacent the edge of the copy paper. After completion of a transmission, the copy medium is severed along a line so as to provide an appropriate margin for the copied information content. In one embodiment of the invention, the closed loop is formed from a single sheet having adhesive along one edge for purposes of forming a bond between opposite edges of the sheet when the sheet is applied to the drum. The read/write head includes a cutting wheel which is adapted to sever the sheet along the appropriate line when the head is moved in a cutting stroke along the length of the drum with the cutter wheel in contact with the sheet. In another embodiment, the copy paper includes tear strings displaced along its back surface running parallel to the axis of the drum and of sufficient number so that a tear string for shearing the copy paper loop is likely to be near the margin of the copy.

27. 发明授权

US4111314A Transportable silo 失效
标题翻译：运输SILO
公开(公告)号：US4111314A
公开(公告)日：1978-09-05
申请号：US797993
申请日：1977-05-18
申请人： Richard L. Nelson
发明人： Richard L. Nelson
IPC分类号： B65D88/30 , B65G65/40
CPC分类号： B65D88/30 , Y10S414/132
摘要： A transportable silo assembly is provided which includes a self-supporting structure with a platform with an opening in it, pillow blocks mounted on the platform, trunions journaled in the pillow blocks, a silo mounted on the trunions for pivotal movement between an erected position and a lowered transport position, a winch mounted on the structure, a cable so arranged as to move the silo between erected and transport position upon operation of the winch, and structures on the leading and trailing ends of the self-supporting structure by which wheels can be mounted and demounted, whereby the self-supporting structure can be transported.

28. 发明授权

US09121743B2 Process variable transmitter system with analog communication 有权
标题翻译：具有模拟通讯功能的过程变量变送器系统
公开(公告)号：US09121743B2
公开(公告)日：2015-09-01
申请号：US13484920
申请日：2012-05-31
申请人： Brian Edward Sofen , Richard L. Nelson
发明人： Brian Edward Sofen , Richard L. Nelson
IPC分类号： G01F23/14 , G06F17/40 , G06F19/00 , G01F23/00 , G01F23/18
CPC分类号： G01F23/14 , G01F23/0084 , G01F23/18 , G06F17/40 , G06F19/00
摘要： A process variable transmitter system for sensing a first pressure at a first location and second pressure at a second location, includes a first transmitter having a first pressure sensor configured to sense the first pressure and first analog output stage coupled to the first sensor configured to provide an analog output signal related to the first pressure. A second pressure transmitter includes a second pressure sensor configured to sense the second pressure and spaced apart from the first pressure sensor. A second analog output stage provides an analog output related to the second pressure. An analog processing stage provides a processed output related to the first and second pressures. A two-wire output is configured to provide an analog current output on a two-wire process variable loop based upon the processed output.
摘要翻译：一种用于感测第一位置处的第一压力并且在第二位置处的第二压力的过程变量发射器系统包括第一发射器，其具有配置成感测第一压力的第一压力传感器和耦合到第一传感器的第一模拟输出级，第一传感器被配置为提供与第一压力相关的模拟输出信号。第二压力变送器包括构造成感测第二压力并与第一压力传感器间隔开的第二压力传感器。第二模拟输出级提供与第二压力相关的模拟输出。模拟处理阶段提供与第一和第二压力相关的经处理的输出。双线输出被配置为基于处理的输出在两线制过程变量回路上提供模拟电流输出。

29. 发明授权

US08561736B2 Adjustable mid-wheel power wheelchair drive system 有权
标题翻译：可调式中轮动力轮椅驱动系统
公开(公告)号：US08561736B2
公开(公告)日：2013-10-22
申请号：US12903435
申请日：2010-10-13
申请人： Richard L. Nelson , Robert M. Levy
发明人： Richard L. Nelson , Robert M. Levy
IPC分类号： B60K1/00 , A61G5/06
CPC分类号： A61G5/061 , B60L11/18 , B60L15/2036 , B60L2200/34 , B60L2270/145 , Y02T10/645 , Y02T10/7005 , Y02T10/72 , Y02T10/7275 , Y10S180/907
摘要： Wheelchairs in various embodiments include a variable-position drive system that can automatically move the drive wheels fore and aft through an approximately 41 cm range. Such a system provides all the benefits of front-, mid-, and rear-wheel drive configurations in a single wheelchair, for example, to adjust the drive wheels toward the rear for stability and speed outdoors and toward the center for maneuverability indoors. The performance-optimal placement of drive wheels often depends on the physical environment (e.g., terrain), on the combined center of mass of the wheelchair and user, and on the user's cognitive functioning, trunk stability, and driving skills. One disclosed embodiment includes a pair of mid-position drive wheels that can automatically be repositioned forward or backward to accommodate changes in terrain and center of mass, which will improve the power wheelchair's stability and maneuverability and, consequently, safety and ease of use in a wider range of scenarios.
摘要翻译：在各种实施例中的轮椅包括可变位置驱动系统，其可以自动地将驱动轮前后移动大约41cm的范围。这样的系统提供了单轮椅的前，后轮和后轮驱动配置的所有优点，例如，将驱动轮朝向后方调整，以便在室外稳定和加速，并且朝向中心以在室内机动。驱动轮的性能优化布置通常取决于轮椅和使用者的组合中心的物理环境（例如，地形），以及用户的认知功能，躯干的稳定性和驾驶技能。一个公开的实施例包括一对中间位置驱动轮，其可以自动地向前或向后重新定位，以适应地形和质心的变化，这将改善轮椅的动力轮椅的稳定性和机动性，并且因此提高安全性和易用性更广泛的场景。

30. 发明申请

US20130107406A1 PROCESS CONTROL FIELD DEVICE WITH CIRCUITRY PROTECTION 有权
标题翻译：具有电路保护的过程控制现场设备
公开(公告)号：US20130107406A1
公开(公告)日：2013-05-02
申请号：US13285307
申请日：2011-10-31
申请人： James A. Johnson , Richard L. Nelson
发明人： James A. Johnson , Richard L. Nelson
IPC分类号： H02H3/26
CPC分类号： H02H11/002 , H02H3/18 , H02H3/202 , H02H11/003 , H02H11/006 , H02J7/0034
摘要： A wireless field device for use in an industrial process control system includes a power source having a power source output. Field device is circuitry powered by the power source output. A protection circuit is configured to protect the field device circuitry. The protection circuit include reverse polarity protection circuit coupled to the power source output that electrically isolates the power source output from the field device circuitry in response to a reverse polarity connection between the power source output and the field device circuitry. An overvoltage protection circuit disconnects the power source output from the field device circuitry is a voltage of the power source output exceeds a threshold.
摘要翻译：用于工业过程控制系统的无线现场设备包括具有电源输出的电源。现场设备是由电源输出供电的电路。保护电路被配置为保护现场设备电路。保护电路包括耦合到电源输出端的反向极性保护电路，电源输出响应于电源输出和现场设备电路之间的反极性连接来电隔离来自现场设备电路的电源输出。过电压保护电路断开现场设备电路的电源输出是电源输出的电压超过阈值。

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