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134 条记录 (耗时 0.051 秒)

    Puller/connector for electrical raceways
    61.
    发明授权
    Puller/connector for electrical raceways 失效
    电动滚道拉拔器/连接器

    公开(公告)号：US07268295B1

    公开(公告)日：2007-09-11

    申请号：US11415810

    申请日：2006-05-02

    申请人： Richard A. Johnson

    发明人： Richard A. Johnson

    IPC分类号： H02G3/04 ,  H02G1/08

    CPC分类号： H02G3/0691

    摘要： A puller/connector (9) for electrical raceways (1) having a spiral shape that is predeterminedly sized so as to lock onto the troughs (3) located on the external surface of an electrical raceway (24) or into the crests (2) located on the internal surface of an electrical raceway (25). Located on a first end of the puller/connector (28) is preferably a barb (10) that is utilized for locking the puller/connector (9) onto/into the electrical raceway (1). Additional embodiments of the puller/connector (9) include a knockout sizing converter (12) and a hooked end for grounding purposes, a puller/connector (9) having a threaded attachment (16) and a puller/connector (9) having a cover (18).

    摘要翻译： 一种用于电动滚道（1）的拉出器/连接器（9），其具有预定尺寸的螺旋形状，以便锁定在位于电动滚道（24）的外表面上或波峰（2）的槽（3） 位于电动滚道（25）的内表面上。 位于拉出器/连接器（28）的第一端优选地是用于将拉拔器/连接器（9）锁定到电动滚道（1）上的倒钩（10）。 牵引器/连接器（9）的另外的实施例包括脱模施胶转换器（12）和用于接地目的的钩端，具有螺纹连接件（16）和拉拔器/连接器（9）的拉拔器/连接器（9） 盖（18）。

    Top coats for shoot and run printing plates
    64.
    发明授权
    Top coats for shoot and run printing plates 失效
    用于拍摄和运行印刷版的大衣

    公开(公告)号：US5939237A

    公开(公告)日：1999-08-17

    申请号：US960175

    申请日：1997-10-29

    申请人： James P. Gardner, Jr. ,  Leonard J. Stulc ,  Richard A. Johnson ,  Dennis E. Vogel

    发明人： James P. Gardner, Jr. ,  Leonard J. Stulc ,  Richard A. Johnson ,  Dennis E. Vogel

    IPC分类号： B41C1/10 ,  B41N1/08 ,  B41N1/10 ,  G03F7/00 ,  G03F7/09 ,  G03F7/11 ,  G03C1/73

    CPC分类号： G03F7/092 ,  B41C1/1041 ,  G03F7/11

    摘要： A no-process printing plate forming photosensitive article having a protective top coat layer is described. The top coat layer may be a water soluble or dispersible polymer, sol, salt, or mixture thereof. The protective top coat layer may provide the no-process printing plate with protection from contamination during handling, improved suppression of odors during imaging, and improved roll-up performance on press. The hydrophilic protective top coat is removed on press by action of the fountain solution and/or ink.

    摘要翻译： 描述了具有保护性顶涂层的无法印版形成感光制品。 顶涂层可以是水溶性或可分散的聚合物，溶胶，盐或其混合物。 保护性顶涂层可以提供无处理印刷板在处理过程中防止污染，改善成像期间气味的抑制，以及改善印刷机上的卷起性能。 通过润版液和/或油墨的作用，在压榨机上除去亲水性保护面漆。

    Apparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling technique
    65.
    发明授权
    Apparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling technique 失效
    利用多功能采样技术在交流电气系统中提供保护和测量的装置

    公开(公告)号：US5627718A

    公开(公告)日：1997-05-06

    申请号：US342208

    申请日：1994-11-18

    申请人： Joseph C. Engel ,  Gary F. Saletta ,  Richard A. Johnson

    发明人： Joseph C. Engel ,  Gary F. Saletta ,  Richard A. Johnson

    IPC分类号： G06F3/05 ,  G01R19/25 ,  G01R21/133 ,  H02H1/00 ,  H02H3/00 ,  H02H3/05 ,  H02H3/093 ,  H02H3/44 ,  H02H3/18

    CPC分类号： G01R21/133 ,  H02H3/0935 ,  H02H1/0007

    摘要： A circuit interrupter samples waveforms in a protected circuit by taking samples in pairs spaced 90 electrical degrees apart. The sum of the squares of samples in each pair, which is representative of the RMS value of the fundamental frequency of the waveform, is used for instantaneous protection by comparing a running sum of the squares for the two most recent pairs of samples to a threshold representative of the instantaneous trip pick-up value. This sum of the squares of successive two pairs of samples is also used for short delay protection. A delay between successive pairs of samples is varied to produce a selected equivalent sampling rate after a given number of samples. Samples accumulated at this equivalent sampling rate, which is sixty-four samples per cycle in the preferred embodiment, are used for long delay protection and metering.

    摘要翻译： 电路中断器通过将成对间隔成90°电角的对象采样在受保护电路中采样波形。 通过将两个最近的两个采样对的运动的平方和进行比较，将代表波形的基频的RMS值的每对样本的平方和的总和用于瞬时保护 代表瞬时提升值。 连续两对样本的平方和也用于短延时保护。 在连续的样本对之间的延迟被改变以在给定数量的样本之后产生所选择的等效采样率。 在优选实施例中以每个循环64次采样的等效采样率累积的样本被用于长延迟保护和计量。

    Circuit interrupter providing protection and waveform capture for harmonic analysis
    66.
    发明授权
    Circuit interrupter providing protection and waveform capture for harmonic analysis 失效
    电路断路器为谐波分析提供保护和波形捕获

    公开(公告)号：US5600527A

    公开(公告)日：1997-02-04

    申请号：US363193

    申请日：1994-12-22

    申请人： Joseph C. Engel ,  Gary F. Saletta ,  Richard A. Johnson

    发明人： Joseph C. Engel ,  Gary F. Saletta ,  Richard A. Johnson

    IPC分类号： G01R23/20 ,  G01R21/133 ,  H02H1/00 ,  H02H3/04 ,  H02H3/093 ,  H02H3/10 ,  H02H3/50 ,  H02H3/52 ,  H02H3/00

    CPC分类号： G01R21/133 ,  H02H3/0935 ,  H02H1/0007 ,  H02H3/04 ,  H02H3/50

    摘要： A circuit breaker with a digital trip unit has a protection mode and a waveform capture mode of operation. In the protection mode, an equivalent sampling technique based upon pairs of samples spaced 90 electrical degrees apart with a pattern of delays between pairs is used to digitize the waveforms in the protected electrical system. Synchronous sampling is used in the waveform capture mode. The value of each sample is monitored in the waveform capture mode and a transfer is made back to the protection mode if a threshold value indicating an overcurrent condition is exceeded. The percentage total harmonic distortion, and per harmonic distortion for harmonics, up to and including the 27th are sequentially presented on a display on the front panel of the circuit breaker and can be transmitted along with the raw waveform data to a remote processor.

    摘要翻译： 具有数字跳闸单元的断路器具有保护模式和波形捕捉操作模式。 在保护模式中，使用基于成对的样本的等效采样技术，其间隔90度电角度与成对之间的延迟模式间的数字化，以保护电气系统中的波形。 在波形捕捉模式下使用同步采样。 如果超过表示过电流条件的阈值，则以波形捕获模式监视每个采样的值，并将转移回保护模式。 直到并包括第27次谐波的总谐波失真和谐波失真百分比顺序呈现在断路器的前面板上的显示器上，并且可以与原始波形数据一起传输到远程处理器。

    Digitally controlled circuit interrupter with improved automatic selection of sampling interval for 50 Hz and 60 Hz power systems
    67.
    发明授权
    Digitally controlled circuit interrupter with improved automatic selection of sampling interval for 50 Hz and 60 Hz power systems 失效
    数字控制电路断路器，可以自动选择50 Hz和60 Hz电源系统的采样间隔

    公开(公告)号：US5559719A

    公开(公告)日：1996-09-24

    申请号：US249829

    申请日：1994-05-26

    申请人： Richard A. Johnson ,  Joseph C. Engel ,  Gary F. Saletta ,  Alan B. Shimp

    发明人： Richard A. Johnson ,  Joseph C. Engel ,  Gary F. Saletta ,  Alan B. Shimp

    IPC分类号： H02H3/08 ,  G01R23/10 ,  H01H33/59 ,  H02H3/00 ,  H02H3/02 ,  H02H3/26 ,  G01R19/00 ,  H02J3/00

    CPC分类号： H02H3/006 ,  G01R23/10

    摘要： A circuit interrupter with a digital trip unit automatically sets the sampling interval appropriate for the 50 Hz or 60 Hz distribution system to which the interrupter is connected. In order to avoid falsely shifting the interval in response to distorted currents, the trip unit only changes the interval if the number of zero crossings of the current within a fixed number of samples is within two zero crossings of the number of zero crossings for an undistorted current of the other frequency for two consecutive time periods in which the fixed number of samples are taken. Furthermore, changes in the interval are only written into an EEPROM for use on power-up a fixed number of times to preclude disabling the EEPROM. In one embodiment, a 2 pole filter is utilized in the zero crossing counting circuit to eliminate false counts from noise originating in a chopper used in the trip unit power supply. In another embodiment, the zero crossing counting circuit is disabled unless external dc power is available for the trip unit which idles the chopper.

    摘要翻译： 具有数字跳闸单元的电路断路器自动设置适用于与断路器连接的50Hz或60Hz分配系统的采样间隔。 为了避免响应于失真电流而错误地移动间隔，如果在固定数量的采样内的电流的零交叉的数量在未失真的零交叉数的两个零交叉之内，则跳闸单元仅改变间隔 采用固定数量样本的两个连续时间段的另一个频率的电流。 此外，间隔的变化只写入一个EEPROM，用于上电固定次数以排除禁用EEPROM。 在一个实施例中，在过零计数电路中使用2极滤波器以消除来自在跳闸单元电源中使用的斩波器的噪声的错误计数。 在另一个实施例中，过零计数电路被禁用，除非外部直流电可用于空转斩波器的跳闸单元。