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1. 发明授权

US06331798B1 Control arrangement and method for high-speed source-transfer switching system 失效
公开(公告)号：US06331798B1
公开(公告)日：2001-12-18
申请号：US09556261
申请日：2000-04-24
申请人： Raymond P. O'Leary , Michael G. Ennis , Joseph W. Ruta , Anthony F. Segredo
发明人： Raymond P. O'Leary , Michael G. Ennis , Joseph W. Ruta , Anthony F. Segredo
IPC分类号： H03K1773
CPC分类号： H03K17/0403 , H03K17/136 , H03K17/735 , Y10T307/735 , Y10T307/839
摘要： A control arrangement and method is provided for a power electronic system configured as a high-speed source-transfer switching systems (HSSTSS). The HSSTSS supplies an electrical load with alternating current from either a first source or a second source via respective first and second solid-state switches. The HSSTSS also includes a controller that samples the voltage waveforms of each of the first and second sources to detect when transfer between the sources is desirable, e.g. outages or voltage that is either too low or too high. The controller provides appropriate control signals to control operation of the solid-state switches and transfer supply of the load therebetween. The control arrangement avoids undesirable current flow between sources via a comparison of the voltages of the sources and current in the outgoing source, i.e. a polarity comparison to ensure that the current that will flow in the incoming source after transfer will be in opposition to the current flowing in the outgoing source before transfer. Thus, the transfer is delayed until the polarity comparison is satisfied. Additionally, the control arrangement minimizes undesirable transfer delays by establishing appropriate transfer conditions before issuing control signals to perform the transfer between sources, i.e. the transfer to turn on the incoming switch is delayed until after appropriate conditions establish that the outgoing source is off or can be effectively turned off. One form of appropriate conditions include the establishing of forced commutation conditions, preferably established by the incoming source voltage differential and the outgoing current being of the same polarity such that the voltage differential across the solid-state switch that is being turned on is sufficient to establish an initial change in current flow in opposition to the current flow in the solid-state switch to be turned off. The appropriate forced commutation is established by the voltage differential between the two sources being of sufficient magnitude to force the outgoing current to zero. Additionally, under certain conditions, the transfer is accomplished by awaiting the next current zero.

2. 发明授权

US4606205A Applied force monitor for apparatus for forming products from sheet material 失效
标题翻译：用于从板材成型产品的设备的应用力监测器
公开(公告)号：US4606205A
公开(公告)日：1986-08-19
申请号：US782463
申请日：1985-10-01
申请人： Anthony F. Segredo , Richard E. Prendergast , Ralph E. Martin , Jack W. Pluister , Manuel T. Techico
发明人： Anthony F. Segredo , Richard E. Prendergast , Ralph E. Martin , Jack W. Pluister , Manuel T. Techico
IPC分类号： B21D51/30 , G01L1/22 , G01L5/00 , B21B37/08
CPC分类号： B21D51/30 , G01L1/2256 , G01L5/0071 , G01L5/0076
摘要： This relates to an applied force monitor which is associated with sheet material forming mechanisms so as to determine whether sheet material is being properly formed by the amount of force applied in the formation thereof. A typical force applying member would be a cam. Suitable strain gauges are associated with the force applying member with the strain gauges being coupled in a bridge having a voltage output which is indicative of the applied force and which is directed to a microcomputer into which suitable indicia is selectively fed and such indicia will include high and low forces which would be indicative of a fault. The microcomputer includes a memory in which the faults are stored and in addition to indicating when individual faults do occur, the memory, when excess faults are determined, will serve to shut down the associated machine. Data may be visually displayed or may be permanently recorded by way of a printer.
摘要翻译：这涉及与片材形成机构相关联的施加的力监测器，以便通过在其形成中施加的力的量来确定片材是否正确地形成。典型的施力部件是凸轮。合适的应变计与施力部件相关联，其中应变计耦合在具有指示所施加的力的电压输出的桥中，并且被引导到微型计算机，合适的标记被选择性地馈送到微型计算机中，并且这样的标记将包括高的以及表示故障的低力量。微型计算机包括其中存储有故障的存储器，并且除了确定何时发生单个故障的指示之外，当确定多余故障时，存储器将用于关闭相关联的机器。数据可以在视觉上显示或者可以通过打印机永久记录。

3. 发明授权

US4600347A Double seam tightness monitor 失效
标题翻译：双缝紧密度监视器
公开(公告)号：US4600347A
公开(公告)日：1986-07-15
申请号：US669716
申请日：1984-11-09
申请人： Anthony F. Segredo , Richard E. Prendergast , Ralph E. Martin , Jack W. Pluister
发明人： Anthony F. Segredo , Richard E. Prendergast , Ralph E. Martin , Jack W. Pluister
IPC分类号： B21D51/30 , G01L1/22 , G01L5/00 , G05B23/00 , B21D51/32
CPC分类号： G01L5/0076 , B21D51/30 , G01L1/2256 , G01L5/0071
摘要： This relates to a double seam tightness monitor wherein the second operation track of a cam of a double seaming apparatus or can closing machine is modified so as to permit the high dwell portion of the lobe thereof to deflect under loading from the associated cam follower which forces the second operation roll against the double seam component. Suitable strain gauges are associated with the deformable cam track portion and these are coupled in a bridge having a voltage output which is directed to a microprocessor. The microprocessor is provided with selected inputs which in combination with the voltage input from the bridge may be utilized to provide various signals including a high force condition signal, a pass condition signal, and a low force condition signal. There may also be associated with the microprocessor a printer for identifying the station where an abnormal condition exists, the specific force of the abnormal condition, the machine number, the time and the date. There may also be an output signal from the microprocessor which may be observed in several customary manners so as to permit a complete monitoring of the forces effected during the repeated seaming operations. There may also be a fault indicator for indicating when the same fault occurs at the same station repeatedly for a preset number of cans. The monitoring operation is entirely automatic except for the resetting of the fault indicator and for the manual control of the printing of high and low forces for those stations which are forming double seams that are passable. This abstract is not to be construed as limiting the claims of the application.
摘要翻译：这涉及双缝密封监测器，其中双缝合装置或可关闭机器的凸轮的第二操作轨道被修改以允许其凸起的高停留部分在负载下从相关联的凸轮从动件偏转针对双缝部件的第二操作辊。合适的应变计与可变形的凸轮轨道部分相关联，并且它们被耦合在具有指向微处理器的电压输出的桥中。微处理器设置有选择的输入，其结合来自桥的输入电压可用于提供包括高力条件信号，通过条件信号和低力条件信号的各种信号。也可能与微处理器相关联的打印机用于识别存在异常情况的站，异常状况的特定力，机器号，时间和日期。还可以存在来自微处理器的输出信号，其可以以几种习惯的方式观察，以便允许完全监测在重复接缝操作期间所受到的力。还可能存在一个故障指示器，用于指示在同一站同时发生同样的故障，对于预设数量的罐重复。监控操作是完全自动的，除了故障指示器的复位以及手动控制正在形成可通过的双接缝的那些站的高，低压力的打印。本摘要不应被解释为限制本申请的权利要求。

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