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11. 发明授权

US4220911A Thyristor tap changer for electrical inductive apparatus 失效
标题翻译：用于电感器的晶闸管分接开关
公开(公告)号：US4220911A
公开(公告)日：1980-09-02
申请号：US940809
申请日：1978-09-08
申请人： John Rosa
发明人： John Rosa
IPC分类号： H02M7/19 , B60L9/12 , G05F1/56 , H01F29/04 , H02M7/06 , H02M7/12 , G05F5/00
CPC分类号： H01F29/04 , H02P13/06
摘要： Tap changing apparatus including a plurality of electrical inductive windings, each having an intermediate tap which divides each winding into two sections with the voltage of one section being twice that of the other section. Gate-controlled electronic switches, disposed between the ends and the intermediate tap of each winding and each of two output terminals, are selectively triggered to form a conductive path which will cause either or both sectons of each tapped winding to be connected into a circuit so that it will aid, oppose or bypass the circuit. The switching sequences provide a full range of positive to negative output voltage magnitudes for each winding in incremental unit steps.
摘要翻译：分接变换装置包括多个电感绕组，每个电感绕组具有中间抽头，其将每个绕组分成两个部分，其中一个部分的电压是另一部分的电压的两倍。设置在每个绕组的端部和中间抽头以及两个输出端子之间的门控电子开关被选择性地触发以形成导电路径，这将导致每个抽头绕组的任一个或两个构件连接到电路中它会帮助，反对或绕过电路。开关序列以增量单位步长为每个绕组提供全范围的正负输出电压幅值。

12. 发明授权

US06626249B2 Dry geothermal drilling and recovery system 失效
标题翻译：干地热钻井回收系统
公开(公告)号：US06626249B2
公开(公告)日：2003-09-30
申请号：US09841856
申请日：2001-04-24
申请人： Robert John Rosa
发明人： Robert John Rosa
IPC分类号： E21B715
CPC分类号： E21B7/15 , B23K26/0643 , B23K26/14 , B23K26/382 , B23K26/40 , B23K2103/50
摘要： A geothermal drilling and recovery system comprising a drilling rig having an elevator with a laser and a radar gun mounted on said elevator, a drill pipe, a rotating mirror mounted adjacent the lower end of said drill pipe and means for establishing a vacuum adjacent said lower end of said drill pipe to remove and recover heat and drilling debris therefrom.
摘要翻译：一种地热钻井和回收系统，包括具有安装在所述升降机上的具有激光电梯和雷达枪的钻机，钻杆，邻近所述钻杆的下端安装的旋转镜和用于在所述下层从而移除和回收热量并从中钻出碎屑。

13. 发明授权

US4129809A Power factor corrected dual converter motor drive 失效
标题翻译：功率因数校正双转换电机驱动
公开(公告)号：US4129809A
公开(公告)日：1978-12-12
申请号：US791746
申请日：1977-04-28
申请人： John Rosa
发明人： John Rosa
IPC分类号： H02M7/17 , G05F1/70 , H02J3/18 , H02M5/27 , H02M7/08 , H02M7/757 , H02P7/28 , H02P7/00
CPC分类号： H02M7/757 , H02J3/1892 , H02P7/2815
摘要： A dual converter for use in a static direct current motor drive is operated with circulating current and the circulating current is adjusted by firing angle control to automatically maintain reactive power compensation during varying torque and speed conditions of the load.
摘要翻译：用于静态直流电动机驱动的双转换器通过循环电流运行，循环电流通过触发角度控制进行调节，以在负载变化的转矩和转速条件下自动维持无功补偿。

14. 发明授权

US5210685A Uninterruptible power supply system and load transfer static switch for such a system 失效
标题翻译：不间断电源系统和负载传输静态开关
公开(公告)号：US5210685A
公开(公告)日：1993-05-11
申请号：US709880
申请日：1985-03-08
申请人： John Rosa
发明人： John Rosa
IPC分类号： H02J9/06
CPC分类号： H02J9/062 , Y10T307/615 , Y10T307/625
摘要： A UPS system which operates initially in a commutation mode allowing commutation of the static transfer switch provided on the primary supply lines, and wherein the standby source is kept energized so as to operate to commutate such transfer switch through the inverter just before initiating UPS mode of operation.
摘要翻译：一种UPS系统，其最初以换向模式运行，允许提供在主电源线上的静态转换开关的换向，并且其中备用电源保持通电，以便在启动UPS模式之前，将这种转换开关转换通过逆变器操作。

15. 外观设计

USD318695S Clapping noisemaker 失效
公开(公告)号：USD318695S
公开(公告)日：1991-07-30
申请号：US306151
申请日：1989-02-06
申请人： John Rosa
设计人： John Rosa

16. 发明授权

US4683527A AC/DC or DC/AC converter system with outboard commutation inductors 失效
标题翻译：交流/直流或直流/交流转换器系统与外部换向电感器
公开(公告)号：US4683527A
公开(公告)日：1987-07-28
申请号：US896027
申请日：1986-08-13
申请人： John Rosa
发明人： John Rosa
IPC分类号： H02M7/06 , H02M7/70
CPC分类号： H02M7/068
摘要： In a 12-pulse AC/DC converter of the hexagon type the rectifier switches are distributed in three groups for each polarity and for each polarity three coils are joined to the common pole and connected separately to the pairs of rectifier switches of a corresponding group. As a result, the capability of the hexagon is extended to commutation of diodes, instead of controlled rectifier switches, by the effect of such interposed commutation inductance.
摘要翻译：在六角型的12脉冲AC / DC转换器中，整流开关分为三组，每个极性为三组，每个极性三个线圈连接到公共极，并分别连接到相应组的整流开关对。因此，通过这种插入的换向电感的作用，六边形的能力被扩展到二极管的换向而不是可控整流开关。

17. 发明授权

US4255784A Transformer-rectifier apparatus 失效
标题翻译：变压整流装置
公开(公告)号：US4255784A
公开(公告)日：1981-03-10
申请号：US92867
申请日：1979-11-08
申请人： John Rosa
发明人： John Rosa
IPC分类号： H02M7/17 , H02M7/12 , H02M7/155
CPC分类号： H02M7/1552
摘要： A three-phase transformer having a delta-connected primary and two identical secondary windings per phase connected in hexagon, has symmetrical taps on each secondary winding connected to rectifying devices for generating DC energy from a first group of six symmetrical AC voltages at 60.degree. with respect to the virtual neutral for one polarity and from a second group of six symmetrical AC voltages at 60.degree. with respect to the virtual neutral for the other polarity, the first and second groups being at 30.degree. phase shift to one another.
摘要翻译：具有连接在六边形上的每相的三角形连接的初级和两相同的次级绕组的三相变压器在连接到整流装置的每个次级绕组上具有对称抽头，用于从第一组六对称交流电压在60°处产生直流能量，对于一个极性的虚拟中性点和相对于另一极性的虚拟中性点的60°的六个对称AC电压的第二组，第一和第二组彼此相差30°。

18. 发明授权

US4174495A Static current limiting switch with soft forced commutation 失效
标题翻译：具有软强制换向功能的静态电流限制开关
公开(公告)号：US4174495A
公开(公告)日：1979-11-13
申请号：US921020
申请日：1978-06-30
申请人： John Rosa
发明人： John Rosa
IPC分类号： H02M1/06 , H02H3/02 , H02H7/00 , H02H7/12 , H02H9/02 , H03K17/0814 , H03K17/725
CPC分类号： H02H3/021 , H02H7/12 , H03K17/08144 , Y10S323/908
摘要： Disclosed is a force commutated static switch composed of inverse parallel connected thyristors. A bilateral commutation circuit is connected across the thyristors. The commutation circuit includes a switched capacitor which, during a current commutation interval, provides the dual functions of contributing to the current commutation operation and of acting as a current source for one of the thyristors. The capacitor discharge current interacts with the intrinsic resistance of the thyristor to provide a relatively low forward voltage drop which is a reverse voltage drop for the other thyristor. The low reverse voltage is known as soft biasing voltage. This voltage is utilized in conjunction with the most recently turned off thyristor to prevent reconduction thereof during the critical recovery time of the thyristor. The commutation circuit cooperates with its control circuit to provide an abort capability for its current limiting operation. Furthermore, the commutating circuit cooperates with its control circuit to eliminate repeated current reversals of the capacitor's discharge current.
摘要翻译：公开了由逆并联连接的晶闸管组成的力换向静态开关。双向换向电路连接在晶闸管两端。换向电路包括开关电容器，其在电流换向间隔期间提供对当前换向操作有贡献的双重功能，并且用作其中一个晶闸管的电流源。电容放电电流与晶闸管的固有电阻相互作用，以提供相对较低的正向压降，这是另一个晶闸管的反向电压降。低反向电压称为软偏置电压。该电压与最近关闭的晶闸管结合使用，以防止在晶闸管的临界恢复时间期间重新产生。换向电路与其控制电路配合以提供其限流操作的中止能力。此外，整流电路与其控制电路配合以消除电容器放电电流的反复电流反转。

19. 发明授权

US4001670A Static reactive power generating apparatus 失效
标题翻译：静态反应发电设备
公开(公告)号：US4001670A
公开(公告)日：1977-01-04
申请号：US575888
申请日：1975-05-08
申请人： Laszlo Gyugyi , John Rosa , Eric J. Stacey
发明人： Laszlo Gyugyi , John Rosa , Eric J. Stacey
IPC分类号： G05F1/70 , H02J3/18 , H02M5/27
CPC分类号： H02J3/1857 , H02M5/271 , Y02E40/26
摘要： An AC/AC frequency changer operating under a one to one frequency ratio has its input coupled to a power system of same frequency and voltage, with an inductor connected between its output and input terminals. The output voltage is controlled so as to deviate by a predetermined amount from the input voltage so that reactive power flows from the output to the input which, owing to the inherent phase inversion in the frequency changer, causes reactive input current and reactive output current to be summed up directly at the input terminals. As a result, the frequency changer requires only a power rating which is half the reactive power which it can supply to the power system.

20. 发明授权

US3991352A Apparatus and method for reducing effective inductance in a dynamic braking circuit 失效
标题翻译：减小动态制动电路有效电感的装置和方法
公开(公告)号：US3991352A
公开(公告)日：1976-11-09
申请号：US588571
申请日：1975-06-19
申请人： Warren C. Fry , Frederick O. Johnson , John Rosa
发明人： Warren C. Fry , Frederick O. Johnson , John Rosa
IPC分类号： H02P3/24 , H02P3/20
CPC分类号： H02P3/24
摘要： A method and apparatus are disclosed for reducing effective inductance and providing balanced line-to-line voltages in induction machine dynamic braking circuits which utilize braking resistors to substantially increase the full torque braking range of the machine. The current phase lag caused by the inductive property of conventional braking resistors, is substantially reduced by rectifying the current provided to the braking resistor through a three-phase rectifier bridge. This reduction of the current phase lag permits a reduction in the capacitance required to compensate for the effective inductance in the dynamic braking circuit. Furthermore, because the braking currents flow through a common braking resistor, the line-to-line stator motor voltages are inherently balanced. If the prior art braking impedance control is also employed, the rectifier bridge need carry current only if dynamic braking is required when motor voltage is greater than the maximum voltage of the inverter supplying the machine. Where the braking resistor may be varied in a step-wise manner, the amount of dynamic braking capacitance needed for inductive compensation is reduced below the substantial reduction realized for a non-variable resistor. Depending upon the required degree of performance and the allowable complexity of the braking circuit, the prior art braking impedance control may be eliminated and the effective impedance of the common braking resistor may be varied in either a continuous or a step-wise manner.
摘要翻译：公开了一种用于降低有效电感并在感应电机动态制动电路中提供平衡的线间电压的方法和装置，其利用制动电阻器来显着增加机器的全扭矩制动范围。由传统制动电阻器的感应特性引起的当前相位滞后通过三相整流桥整流供给制动电阻器的电流而大大降低。电流相位滞后的这种减小允许减少补偿动态制动电路中的有效电感所需的电容。此外，由于制动电流流过公共制动电阻器，所以线对线定子电动机电压本质上是平衡的。如果还采用了现有技术的制动阻抗控制，则只有当电动机电压大于供给机器的逆变器的最大电压时需要动态制动，整流桥才需要携带电流。在制动电阻可以逐步变化的情况下，电感补偿所需的动态制动电容量可以降低到不可变电阻实现的实质性降低。根据所需的性能程度和制动电路的允许复杂度，可以消除现有技术的制动阻抗控制，并且公共制动电阻器的有效阻抗可以以连续或逐步的方式变化。

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