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公开(公告)号：US07093723B1
公开(公告)日：2006-08-22
申请号：US11049596
申请日：2005-02-02
CPC分类号： G09F11/025
摘要： A display system may include a frame, column connection members connected to the frame, and four-sided column members positioned adjacent one another and rotatably connected to the column connection members. Each column member may include a connector and elongate display members positioned adjacent one another and pivotally connected to the connector. The display system may also include a drive assembly carried by the frame that engages the column connection members to rotate each column member so that selective display members pivot in a predetermined direction during rotation to change the shape of the column members allowing rotation thereof when positioned adjacent one another.
摘要翻译： 显示系统可以包括框架，连接到框架的列连接构件和彼此相邻定位并可旋转地连接到列连接构件的四边柱构件。 每个柱构件可以包括连接器和细长显示构件，其彼此相邻并且可枢转地连接到连接器。 显示系统还可以包括由框架承载的驱动组件，其与柱连接构件接合以旋转每个柱构件，使得选择性显示构件在旋转期间沿预定方向枢转，以改变柱构件的形状，从而允许在相邻定位时使其旋转 另一个。
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公开(公告)号：US5300841A
公开(公告)日：1994-04-05
申请号：US970194
申请日：1992-11-02
申请人： Mark A. Preston , James P. Lyons
发明人： Mark A. Preston , James P. Lyons
CPC分类号： F16C32/0482 , F16C32/0442 , F16C32/0448 , G01B7/144
摘要： In an active magnetic bearing system employing radial or thrust bearings, rotor shaft position is determined without requiring air gap position sensors, resulting in a high reliability system. The flux paths for each respective electromagnetic force actuator of the active magnetic bearing are isolated in order to minimize the magnetic coupling therebetween. In this way, the current (or magnetomotive force, mmf) in each respective actuator is functionally related to the flux therethrough, independent of the currents (or mmf's) in adjacent actuators. Application of a digital PWM pole voltage waveform during normal bearing operation results in a ripple current waveform at the PWM switching frequency. The resulting change in stator pole current and pole voltage are measured, and the average differential inductance is determined therefrom. Then, with knowledge of the differential inductance and the average pole current, the effective air gap length, air gap velocity, and magnetic flux are determined according to the inherent magnetization characteristic of the magnetic bearing.
摘要翻译： 在采用径向或推力轴承的主动磁轴承系统中，确定转子轴位置，而不需要气隙位置传感器，从而产生高可靠性系统。 主动磁轴承的每个相应电磁力致动器的磁通路径是隔离的，以便使它们之间的磁耦合最小化。 以这种方式，与相邻致动器中的电流（或mmf）无关，每个相应致动器中的电流（或磁动势mmf）在功能上与其通量相关。 在正常轴承运行期间应用数字PWM极电压波形会导致PWM开关频率处的纹波电流波形。 测量定子极电流和极点电压的最终变化，并且由此确定平均差分电感。 然后，根据差动电感和平均极电流的知识，根据磁轴承的固有磁化特性确定有效气隙长度，气隙速度和磁通量。
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公开(公告)号：US07921586B2
公开(公告)日：2011-04-12
申请号：US12194690
申请日：2008-08-20
IPC分类号： G09F11/02
CPC分类号： G09F11/025
摘要： A display system includes a frame and a plurality of rotatable columns carried by the frame. Each of the plurality of rotatable columns may include a column connection member, at least one display engagement member carried by the column connection member, and a plurality of display members carried by the at least one display engagement member. The display system may also include a respective plurality of display guide members carried by the frame to engage each of the plurality of rotatable columns. Each of the respective plurality of display guide members may include an arcuate shaped guide. Each display guide member may have four imaginary quadrants and a portion of the arcuate shaped guide extends through each of the four imaginary quadrants. Each portion of the arcuate shaped guide extending through each of the imaginary quadrant preferably has a different shape.
摘要翻译： 显示系统包括框架和由框架承载的多个可旋转柱。 多个可旋转柱中的每一个可以包括柱连接构件，由柱连接构件承载的至少一个显示接合构件和由至少一个显示接合构件承载的多个显示构件。 显示系统还可以包括由框架承载的相应的多个显示引导构件，以接合多个可旋转柱中的每一个。 相应的多个显示引导构件中的每一个可以包括弓形引导件。 每个显示引导构件可以具有四个虚拟象限，并且弓形引导件的一部分延伸穿过四个虚拟象限中的每一个。 延伸穿过虚拟象限中的每一个的弓形引导件的每个部分优选地具有不同的形状。
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公开(公告)号：US6055681A
公开(公告)日：2000-05-02
申请号：US150254
申请日：1998-09-09
申请人： James P. Lyons
发明人： James P. Lyons
IPC分类号： E03D9/00
CPC分类号： E03D9/00
摘要： A urinal anti-splash-back apparatus and associated methods are provided which preferably include a frame, a urine anti-splash-back filtering device mounted to the frame for filtering urine so that major portions of urine being deposited against an outer surface thereof are prevented from splashing back toward the urine depositor, and a urinal frame mount connected to the frame and positioned to be mounted to an inner back wall of a urinal for readily mounting the frame to the inner back wall of the urinal. The urine anti-splash-back filtering device preferably includes a urine filter material which absorbs urine and is preferably formed of a fibrous material, such as a fabric fibrous material. A method of reducing splash-back in a urinal is provided which preferably includes attaching a urine absorbing and filtering material to an inner back wall of a urinal.
摘要翻译： 提供了一种小便器防溅装置和相关方法，其优选地包括框架，安装到框架上的尿防溅反滤器，用于过滤尿液，使得防止大部分尿液沉积在其外表面上 从尿液储存器飞溅回来，以及连接到框架的小便器框架安装件，并被定位成安装到小便器的内后壁，以便于将框架安装到小便器的内后壁。 尿防溅滤液装置优选包括吸收尿液的尿过滤材料，优选由纤维材料如织物纤维材料形成。 提供了一种减少尿壶中飞溅的方法，其优选包括将尿液吸收和过滤材料附着到小便池的内后壁。
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公开(公告)号：US5300842A
公开(公告)日：1994-04-05
申请号：US970196
申请日：1992-11-02
申请人： James P. Lyons , Mark A. Preston
发明人： James P. Lyons , Mark A. Preston
CPC分类号： F16C32/0448 , F16C32/0442 , F16C32/0482 , G01B7/144
摘要： In an active magnetic bearing system employing radial or thrust bearings, rotor shaft position is determined without requiring air gap position sensors, resulting in a high reliability system. The flux paths for each respective electromagnetic force actuator of the active magnetic bearing are isolated in order to minimize the magnetic coupling therebetween. The active magnetic bearing system is controlled for mutually exclusive excitation of each of the two actuators (e.g., stator pole pairs) per control axis. A sequence of test voltage pulses is applied to the unexcited one of each actuator pole-pair. At the peak of an applied test voltage pulse, after a predetermined time interval, the pole flux linkage is estimated using either an analog or software integrator. The integrator is reset at zero current, and hence zero flux, thereby avoiding accumulation of errors. The effective air gap length is determined from the inherent magnetization characteristic of the magnetic bearing using the measured current and the estimated flux linkage. Effectively, each magnetic pole is used alternately for force actuation and for inductive feedback sensing, eliminating the need for separate position sensors.
摘要翻译： 在采用径向或推力轴承的主动磁轴承系统中，确定转子轴位置，而不需要气隙位置传感器，从而产生高可靠性系统。 主动磁轴承的每个相应电磁力致动器的磁通路径是隔离的，以便使它们之间的磁耦合最小化。 控制主动磁轴承系统，用于每个控制轴的两个致动器（例如，定子极对）中的每一个相互排斥的激励。 将一系列测试电压脉冲施加到每个致动器极对中的未激励的一个。 在施加的测试电压脉冲的峰值处，在预定时间间隔之后，使用模拟或软件积分器来估计极点磁链。 积分器在零电流下复位，因此零通量，从而避免误差累积。 有效气隙长度根据使用测量电流和估计磁通量的磁轴承的固有磁化特性确定。 有效地，每个磁极交替地用于力致动和用于感应反馈感测，消除了对单独的位置传感器的需要。
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公开(公告)号：US5029730A
公开(公告)日：1991-07-09
申请号：US411901
申请日：1989-07-20
CPC分类号： F17C5/06 , F17C13/04 , F17C13/06 , F17C2205/0308 , F17C2205/032 , F17C2205/0323 , F17C2221/011 , F17C2270/0736 , Y10T137/3584 , Y10T137/374
摘要： A sealed oxygen container having a filling neck is provided with a heat welded closure cap. A valve is positioned within the neck. The valve enables the container to be filled with oxygen and then seals the oxygen therein preventing oxygen from escaping during heat welding of the closure cap. The heat welded cap may then be readily pierced so that oxygen can be dispsensed.
摘要翻译： PCT No.PCT / US89 / 01248 Sec。 371日期：1989年7月20日 102（e）日期1989年7月20日PCT 1989年3月23日提交。具有填充颈部的密封氧气容器设置有热焊接封盖。 阀门位于颈部。 该阀使得容器能够填充氧气，然后在其中密封氧气，防止氧气在封盖的热焊接期间逸出。 然后可以容易地穿透热焊接帽，使得氧可以被剥夺。
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公开(公告)号：US09015601B2
公开(公告)日：2015-04-21
申请号：US13165725
申请日：2011-06-21
申请人： Benjamin Trombley-Shapiro , James P. Lyons , Arnold Goldberg , Florian Jourda , David T. Lee , Arshdeep Mand
发明人： Benjamin Trombley-Shapiro , James P. Lyons , Arnold Goldberg , Florian Jourda , David T. Lee , Arshdeep Mand
摘要： Systems and methods of batch uploading of content to a web-based collaboration environment are disclosed. In one aspect, embodiments of the present disclosure include a method, which may be implemented on a system, for receiving an upload request from a user through a user interface to upload multiple items and sequentially uploading each of the multiple items to the host server. In one embodiment, the user is able to navigate away from the user interface through which the upload request was submitted prior to completion of the uploading of each of the multiple items to the host server. In addition, the upload of the multiple items is not interrupted if the user accesses a link on the user interface causing another user interface to launch in a browser.
摘要翻译： 公开了将内容批量上传到基于网络的协作环境的系统和方法。 一方面，本公开的实施例包括可以在系统上实现的用于通过用户界面从用户接收上传请求以上传多个项目并将多个项目中的每一个顺序上载到主机服务器的方法。 在一个实施例中，在完成将多个项目中的每一个上载到主机服务器之前，用户能够远离在其中提交上传请求的用户界面。 此外，如果用户访问用户界面上的链接导致另一个用户界面在浏览器中启动，则不会中断多个项目的上传。
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公开(公告)号：US5578880A
公开(公告)日：1996-11-26
申请号：US276586
申请日：1994-07-18
申请人： James P. Lyons , Mark A. Preston
发明人： James P. Lyons , Mark A. Preston
CPC分类号： F16C32/0442 , F16C32/0455 , F16C32/0482 , H02K7/09 , F16C32/0457
摘要： A fault tolerant active magnetic bearing system comprises a magnetic bearing having a rotor mounted for rotation within a stator and for coupling to a shaft. An electric power distribution system is energized from a multi-phase switched reluctance machine supplying three independent DC power buses. Each of the power buses is coupled for supplying power to a respective pair of diametrically opposite electromagnets of the magnetic bearing so as to establish multiple magnetic control axes. Multiple power controllers are each operatively connected in circuit with a separate respective power bus. The power controllers include independent power control systems each coupled to a respective pair of diametrically opposite electromagnets for independently controlling energization of each one of the pair of diametrically opposite electromagnets.
摘要翻译： 容错主动磁轴承系统包括具有安装用于在定子内旋转并用于联接到轴的转子的磁性轴承。 电力分配系统由提供三个独立直流电源总线的多相开关磁阻电机供电。 每个电源总线被耦合用于向磁轴承的相应的一对直径相对的电磁体供电，以便建立多个磁控制轴。 多个功率控制器各自可操作地连接到具有单独的相应电力总线的电路中。 功率控制器包括独立的功率控制系统，每个功率控制系统各自耦合到相应的一对直径相对的电磁体，用于独立地控制一对直径相对的电磁体中的每一个的通电。
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9.发明授权Low speed position estimator for switched reluctance machine using flux/current model 失效使用磁通/电流模型的开关磁阻电机的低速位置估计器
公开(公告)号：US5525886A
公开(公告)日：1996-06-11
申请号：US263990
申请日：1994-06-23
申请人： James P. Lyons , Mark A. Preston
发明人： James P. Lyons , Mark A. Preston
CPC分类号： H02P6/185 , H02P25/0925
摘要： A method for estimating rotor position of a switched reluctance motor during rotor start-up or low speed operation includes applying a sequence of relatively high frequency, short duration electric probing pulses to at least two inactive excitation phase windings of a multi-phase motor. The voltage and current at each of the two inactive excitation phase windings are measured and the resultant values used to compute an estimated rotor/stator linkage/flux in each of the two excitation phase windings. The computed linkage/flux and measured phase current of the two inactive excitation windings is then used in a model to determine the rotor position. In one form, rotor position is determined by establishing a table of values representing rotor position as a function of phase current for each of a plurality of values of motor phase linkage/flux and selecting from the table a value of rotor position corresponding to the measured phase current and computed linkage/flux for the phase.
摘要翻译： 用于在转子启动或低速操作期间估计开关磁阻电动机的转子位置的方法包括将相对高频，短持续时间的电探测脉冲序列应用于多相电动机的至少两个无功激励相绕组。 测量两个无功激励相绕组中的每一个处的电压和电流，并且所得到的值用于计算两个励磁相绕组中的每一个中的估计的转子/定子联动/通量。 然后将两个无效激励绕组的计算的联动/通量和测量的相电流用于模型中以确定转子位置。 在一种形式中，转子位置通过根据电动机相位/磁通的多个值中的每一个建立表示作为相电流的函数的转子位置的值的值来确定，并且从表中选择对应于所测量的转子位置的值 相电流和相位的计算连接/通量。
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公开(公告)号：US5172309A
公开(公告)日：1992-12-15
申请号：US741873
申请日：1991-08-07
IPC分类号： H02M7/48
CPC分类号： H02M7/4826 , H02M2007/4811
摘要： An auxiliary quasi-resonant dc link (AQRDCL) converter is employed to achieve soft-switching in an inverter coupled to a dc supply via a resonant dc link circuit. The resonant dc link circuit generates a quasi-resonant voltage to the inverter via a resonant bus. The dc link circuit includes upper and lower capacitors coupled to series between the positive and negative rails of the dc supply, respectively, with the voltage across the lower capacitor being controlled to be greater than the voltage across the upper capacitor. In this way, the need for a switch shorting the resonant bus to ground during a resonant cycle is avoided. An auxiliary switching device assists resonant operation of the resonant bus to zero voltage in order to provide a zero-voltage switching opportunity for the inverter switching devices as the inverter changes state. The AQRDCL then quickly resonates back up to the positive rail voltage as a clamping circuit clamps the resonant bus voltage thereto either with or without the assistance of a second auxiliary switching device, as desired. The auxiliary switching device(es) operates under zero-current switching conditions and at a rate that is below the resonant frequency of the resonant dc link circuit. In addition to high efficiency, the AQRDCL converter has low current and voltage stresses and uses a minimal number of circuit components. The AQRDCL may be used to achieve soft-switching in a variety of inverter topologies, including a switched reluctance machine inverter.
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