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1. 发明授权

US5991176A Method for processing PWM waves and devices therefor 失效
标题翻译： PWM波的处理方法及其设备
公开(公告)号：US5991176A
公开(公告)日：1999-11-23
申请号：US954864
申请日：1997-10-21
申请人： Johnny Bou Saada , Philippe Colignon
发明人： Johnny Bou Saada , Philippe Colignon
IPC分类号： H02M1/00 , H02M1/12 , H02M1/38 , H02M7/155 , H02M7/5395 , H02H7/122
CPC分类号： H02M1/38 , H02M1/12 , H02M7/5395
摘要： A method for processing PWM waves for a voltage inverter or a voltage-controlled rectifier, including at least one pair of switches, said inverter or rectifier being controlled by a modulator and a discriminator. According to the method, two set waves corrected according to the current direction in the load or the source are applied to the discriminator. The corrected set wave for the output current has a high level to which a delay is added during transition from the high level to the low level, and the corrected set wave for the input current has a low level to which a delay is added during transition from the low level to the high level. The high level is defined by the fact that the switch connected to the most positive load is closed while the switch connected to the most negative load is open, and the low level is defined by the reverse.
摘要翻译： PCT No.PCT / BE96 / 00039 Sec。 371日期1997年10月21日 102（e）日期1997年10月21日PCT 1996年4月12日PCT PCT。公开号WO96 / 33548 日期1996年10月24日一种用于处理电压逆变器或压控整流器的PWM波的方法，包括至少一对开关，所述逆变器或整流器由调制器和鉴频器控制。根据该方法，将根据负载或源中的当前方向校正的两个设定波施加到鉴别器。输出电流的校正设定波在从高电平转换到低电平期间具有相加延迟的高电平，并且用于输入电流的经校正的设定波具有在转换期间添加延迟的低电平从低水平到高水平。高电平由以下事实定义：连接到最正负载的开关闭合，而连接到最负负载的开关断开，低电平由相反定义。

2. 再颁专利

USRE33410E Liquid-liquid extraction of germanium from aqueous solution using hydroxy-oximes 失效
标题翻译：使用羟基肟从水溶液中液 - 液萃取锗
公开(公告)号：USRE33410E
公开(公告)日：1990-10-30
申请号：US485902
申请日：1990-02-26
申请人： Achille De Schepper , Antoine Van Peteghem
发明人： Achille De Schepper , Antoine Van Peteghem
IPC分类号： C01G17/00 , C22B3/30
CPC分类号： C01G17/003 , C22B3/0017 , Y02P10/234
摘要： Process for extraction of germanium from aqueous acid solution by contacting with an organic liquid containing a hydroxy-oxime and recovering the extracted germanium from the organic phase.

3. 发明授权

US4693072A Method of operating a combined cycle electric power plant 失效
标题翻译：联合循环发电厂的运行方法
公开(公告)号：US4693072A
公开(公告)日：1987-09-15
申请号：US899732
申请日：1986-08-25
申请人： George S. McLean , Paul J. Grimes , Albert van Gucht
发明人： George S. McLean , Paul J. Grimes , Albert van Gucht
IPC分类号： F01K9/00 , F01K23/10 , F02C1/00 , F02C3/22
CPC分类号： F02C1/00 , F01K23/10 , F01K9/003 , Y02E20/16
摘要： A method of operating a combined cycle electric power plant at a measuring and regulating station of a gas transmission line is disclosed where gas at high pressure is being delivered from the transmission line to a lower pressure line, such as a gas distribution system, comprising the steps of supplying a portion of the gas to the combustion chamber of a gas turbine to drive a first electrical generator and produce electricity, using the hot gases in the exhaust of the gas turbine to heat water in a boiler and produce steam, supplying the steam to a steam turbine to drive a second electrical generator and produce electricity, reducing the pressure of the gas being delivered to the pressure of the lower pressure line, and using the heat of condensation of the exhaust steam from the steam turbine to keep the temperature of the gas at or above a selected minimum as the pressure of the gas is reduced from that of the high pressure line to the pressure of the lower pressure line. In one embodiment of the method, the pressure of the delivered gas is reduced by passing the gas through a turboexpander and using the output energy of the turboexpander to drive a third electrical generator and produce electricity.
摘要翻译：公开了一种在气体输送管线的测量和调节站处操作联合循环发电厂的方法，其中高压气体从传输线输送到诸如气体分配系统的下压力管线，包括将气体的一部分供应到燃气轮机的燃烧室以驱动第一发电机并产生电力的步骤，使用燃气涡轮机的排气中的热气体加热锅炉中的水并产生蒸汽，供应蒸汽到蒸汽轮机以驱动第二发电机并产生电力，将被输送的气体的压力降低到低压线路的压力，并且使用来自蒸汽涡轮机的排出蒸汽的冷凝热来保持温度当气体的压力从高压管路的压力降低到低压管线的压力时，气体等于或高于所选择的最小值。在该方法的一个实施例中，通过使气体通过涡轮膨胀机并且使用涡轮膨胀机的输出能量来驱动第三发电机并产生电力来降低输送气体的压力。

4. 发明授权

US3973871A Sump pump 失效
标题翻译：水泵
公开(公告)号：US3973871A
公开(公告)日：1976-08-10
申请号：US518175
申请日：1974-10-25
申请人： Pierre G. Hance
发明人： Pierre G. Hance
IPC分类号： F04D1/00 , F04D13/14 , F04D29/42 , F04D29/60 , F04D29/28
CPC分类号： F04D1/006 , F04D13/14 , F04D29/426 , F04D29/606
摘要： A sump pump comprising a sump having an inlet for the liquid to be pumped and a discharge outlet, the pump proper being received at the bottom of the sump and being driven by a vertically mounted shaft. The pump comprises two impellers each having two intakes, the impellers being mounted one above the other on the shaft and surrounded by two volutes each having one or two outlets which are connected to the inlets of a collecting manifold, the outlet of such manifold being connected to the outlet of the sump.
摘要翻译：一种集水泵，其包括具有用于待泵送的液体的入口的排水口和排出口，所述泵本体被容纳在所述贮槽的底部并由垂直安装的轴驱动。泵包括两个叶轮，每个叶轮具有两个入口，叶轮在轴上彼此上下安装并被两个蜗壳包围，每个蜗壳具有一个或两个出口，其连接到集合歧管的入口，该歧管的出口连接到水槽的出口。

5. 发明授权

US3571667A Track circuit of great length 失效
标题翻译：大长度跟踪电路
公开(公告)号：US3571667A
公开(公告)日：1971-03-23
申请号：US3571667D
申请日：1969-03-14
申请人： ACEC
发明人： DEMEUR JEAN
IPC分类号： B61L1/18 , B61L1/02 , H01H47/20
CPC分类号： B61L1/188
摘要： The disclosure relates to a track circuit for detecting the presence of a train on a long section of a railway track equipped with an AC traction power line, wherein the two rails of the section are insulated from the adjoining sections at each end thereof, comprising a generator connected to one end of the railway section for generating a voltage at a frequency which is approximately equidistant from the fundamental frequency of the power line and from the second harmonic thereof, the generated voltage comprising a series of pulse trains having a very low repetition rate. The track circuit also comprises a receiver for detecting the generated voltage at the opposite end of the railway section. The receiver includes an amplitude discriminator for eliminating the signals the amplitude of which is lower than a predetermined level and a selective demodulator which provides an output only when its input is energized by a signal at the above-mentioned repetition rate.

6. 发明授权

US3524034A Rotary pulse generator 失效
标题翻译：旋转脉冲发生器
公开(公告)号：US3524034A
公开(公告)日：1970-08-11
申请号：US3524034D
申请日：1968-09-05
申请人： ACEC
发明人： GERVAIS JEAN
IPC分类号： G06M1/10 , H01H3/16 , H01H19/24 , H01H19/635 , H01H35/12
CPC分类号： G06M1/10 , H01H3/16 , H01H19/24 , H01H19/6355 , H01H35/12

7. 发明授权

US3271659A Tap changing autotransformer 失效
标题翻译：点击更改自耦变压器
公开(公告)号：US3271659A
公开(公告)日：1966-09-06
申请号：US27864463
申请日：1963-05-07
申请人： ACEC
发明人： JOSEPH PHILIPS HENRI
IPC分类号： H01F29/02
CPC分类号： H01F29/02

8. 发明授权

US2876332A Method and apparatus for joining two members in end-to-end relationship 失效
标题翻译：以两端关系连接两个成员的方法和装置
公开(公告)号：US2876332A
公开(公告)日：1959-03-03
申请号：US69581557
申请日：1957-11-12
申请人： ACEC
发明人： MAURICE DUSSART
IPC分类号： B23K11/00
CPC分类号： B23K11/002

9. 发明授权

US2779880A Ultra-sonic wave transducers 失效
标题翻译：超声波换能器
公开(公告)号：US2779880A
公开(公告)日：1957-01-29
申请号：US27733052
申请日：1952-03-18
申请人： ACEC
发明人： GEORGES MALHERBE
IPC分类号： G10K11/28
CPC分类号： G10K11/28

10. 发明授权

US2432433A Mercury vapor current converter 失效
标题翻译：汞蒸汽电流转换器
公开(公告)号：US2432433A
公开(公告)日：1947-12-09
申请号：US68253546
申请日：1946-07-10
申请人： ACEC
发明人： HERMAN MEES
IPC分类号： H01J13/32
CPC分类号： H01J13/32

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