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71. 发明授权

US3671696A Vacuum interrupter shunted with mechanical switch 失效
标题翻译：真空断路器与机械开关连接
公开(公告)号：US3671696A
公开(公告)日：1972-06-20
申请号：US3671696D
申请日：1970-11-16
申请人： ALLIS CHALMERS MFG CO
发明人： BRUNNER RICHARD G
IPC分类号： H01H33/12 , H01H33/666 , H01H33/66
CPC分类号： H01H33/6661 , H01H33/12
摘要： An electric circuit breaker for switching capacitive loads, such as capacitor banks or long electric power transmission lines, comprises a metallic housing having a pair of spaced apart terminal bushings extending through the wall thereof. Each bushing comprises a conductor and an insulator. A vacuum interrupter comprising an evacuated envelope and a stationary and a movable contact therein is mounted in the housing between the bushings and each contact is connected to the conductor in a respective bushing. A shunting switch for parallel connection with the vacuum interrupter is mounted in the housing between the bushings. The shunting switch has less current interrupting capacity but greater current carrying capacity than the vacuum interrupter. The shunting switch comprises a stationary contact which is mounted on one bushing and electrically connected to the conductor therein. The shunting switch further comprises a pivotable blade type contact which is mounted on the other bushing and electrically connected to the conductor therein. Operating means are located in the housing and comprises a first and second insulated contact rods which are connected to the movable contact of the vacuum interrupter and the blade of the shunting switch, respectively. In operation, the operating means causes the vacuum interrupter to close before and open after the closing and opening, respectively, of the shunting switch.
摘要翻译：用于开关电容负载（例如电容器组或长电力传输线）的电路断路器包括具有延伸穿过其壁的一对间隔开的端子衬套的金属壳体。每个衬套包括导体和绝缘体。包括抽真空的外壳和固定的真空断路器和其中的可动触头安装在套管之间的壳体中，并且每个触头在相应的衬套中连接到导体。用于与真空断路器并联的分流开关安装在套管之间的套管中。分流开关具有比真空断路器更少的电流中断能力，但具有更大的载流能力。分流开关包括安装在一个衬套上并与其中的导体电连接的固定触头。分流开关还包括可枢转的叶片型接触件，其安装在另一个衬套上并与其中的导体电连接。操作装置位于壳体中，并且包括分别连接到真空断路器的可动触点和分流开关的叶片的第一和第二绝缘接触杆。在操作中，分路开关的闭合和断开之后，操作装置使真空断路器闭合并打开。

72. 发明授权

US3626126A High-voltage disconnecting switch 失效
标题翻译：高压断开开关
公开(公告)号：US3626126A
公开(公告)日：1971-12-07
申请号：US3626126D
申请日：1969-10-13
申请人： WICKMANN WERKE AG
发明人： PESCH HERMANN
IPC分类号： H01H33/06 , H01H33/12
CPC分类号： H01H33/06 , H01H33/12
摘要： A high-voltage rotary switch having a stationary main contact, a rotary main contact and an auxiliary arcing contact in electrical parallel with the rotary main contact. The arcing contact is the final circuit breaking element and is surrounded when the circuit breaks and arcing occurs by an arc-extinguishing chamber formed by two interacting arcuate elements one of which is stationary and the other of which is carried on the rotary contact.

73. 发明授权

US3614354A Electric switch having oppositely operating dual contacts 失效
标题翻译：具有相互操作的双重触点的电气开关
公开(公告)号：US3614354A
公开(公告)日：1971-10-19
申请号：US3614354D
申请日：1969-08-29
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KOIKE HIROSHI , FUJITA ROKURO
IPC分类号： H01H1/24 , H01H33/12
CPC分类号： H01H1/24
摘要： In an electric switch for use in inductive circuits including main contacts connected in series with the circuit and short circuit contacts connected in parallel with the circuit, both of the main and short circuiting contacts are driven by a common source of motive power through discrete operating mechanisms. The operating mechanism for the short circuiting contacts includes a lever of variable length which is connected to a contact carrying arm through a lost motion coupler.

74. 发明授权

US3588406A High voltage beaver tail type switch with preinsertion resistor 失效
标题翻译：带预压电阻器的高电压尾灯类型开关
公开(公告)号：US3588406A
公开(公告)日：1971-06-28
申请号：US3588406D
申请日：1968-11-01
申请人： S & C ELECTRIC CO
发明人： BERNATT JOSEPH
IPC分类号： H01H33/12 , H01H33/16
CPC分类号： H01H33/16 , H01H33/128
摘要： DURING THE FINAL CLOSING MOVEMENT OF A BEAVER TAIL TYPE SWITCH CONDUCTING ARM MEANS EXTENDING RADIALLY FROM NEAR THE DISTAL END OF THE SWITCH BLADE IS SWUNG INTO JUXTAPOSITION WITH TERMINAL CONDUCTOR MEANS CONNECTED TO A RESISTOR ASSEMBLY MOUNTED ON AND TO ONE SIDE OF THE STATIONARY SWITCH CONTACT TO CONNECT THE RESISTOR ASSEMBLY IN SERIES WITH THE SWITCH BLADE AND LIMIT THE INRUSH CURRENT INCIDENT TO CLOSING OF THE SWITCH.

75. 发明授权

US3579258A Gas blast circuit breaker using a generally axial flow main blast 失效
标题翻译：气体断路器使用通用轴流动主喷嘴
公开(公告)号：US3579258A
公开(公告)日：1971-05-18
申请号：US3579258D
申请日：1968-09-23
申请人： GEN ELECTRIC
发明人： BEATTY JOHN W
IPC分类号： H01H33/12 , H01H33/70 , H01H33/867
CPC分类号： H01H33/7038 , H01H33/12
摘要： Discloses a gas-blast circuit breaker comprising an upstream electrode, a downstream electrode spaced therefrom, and an orifice having an opening positioned between said electrodes. During interruption, an arc established between the electrodes extends through the orifice opening, and a gas blast is caused to flow through the orifice opening via paths extending along the external surface of the upstream electrode and generally axially of the arc adjacent the upstream electrode. Improved flow conditions adjacent the upstream electrode are produced by providing a series of jets issuing from circumferentially-spaced points about the orifice opening and directed convergently toward the central region of the downstream face of the upstream electrode.

76. 发明授权

US3567885A Isolator switch with bridging resistance and extinguishing gas control 失效
标题翻译：隔离开关具有抗电阻和灭火气体控制
公开(公告)号：US3567885A
公开(公告)日：1971-03-02
申请号：US3567885D
申请日：1968-08-19
申请人： COQ NV
发明人： BOERSMA RINTJE
IPC分类号： H01H33/12 , H01H33/16 , H01H33/30 , H01H33/82 , H01H33/873 , H01H33/80
CPC分类号： H01H33/82 , H01H33/12 , H01H33/166 , H01H33/302
摘要： A gas blast circuit-breaker for isolating purposes and switching normal loads only, comprising a fixed main contact, a movable main contact cooperating therewith and two cooperating movable arcing contacts, of which the first one is rigidly connected with the movable main contact and the second one is electrically connected with the fixed main contact and is adapted to move, during the switching-off operation, together and in contact with the first arcing contact till a little past the separation of the main contacts, said second arcing contact being formed as a nozzle contact, the passage of which is opened during the switching-off operation as to allow extinguishing gas to escape from the switching chamber to quench the switching arc set up between the arcing contacts after their separation.

77. 发明授权

US3566061A High voltage switch with enclosed preinsertion resistor 失效
标题翻译：高压开关带封装电阻
公开(公告)号：US3566061A
公开(公告)日：1971-02-23
申请号：US3566061D
申请日：1968-11-27
申请人： S & C ELECTRIC CO
发明人： BERNATT JOSEPH
IPC分类号： H01H33/12 , H01H33/16
CPC分类号： H01H33/16 , H01H33/128
摘要： A high voltage center-break disconnecting switch has a resistor and short-circuiting contact assembly connected in series circuit relation and mounted in tandem for operation by one of the rotatable insulators in such fashion that the resistor is short circuited except during the closing movement of the switch blades. At that time the contacts are opened and the resistor is connected in the circuit to limit the inrush current. The contacts are closed as the switch blades are swung to the fully closed position to bypass the resistor when the switch is closed. A weatherproof housing encloses the resistor, short-circuiting contacts and operating mechanism therefor to protect them from contamination by the atmosphere and from rain, sleet, ice and snow.

78. 发明授权

US3560682A Vacuum interrupter with shunting main contact structure and series disconnecting contact structure 失效
标题翻译：真空中断器主要接触结构和断路接头结构系列
公开(公告)号：US3560682A
公开(公告)日：1971-02-02
申请号：US3560682D
申请日：1966-11-07
申请人： SIEMENS AG
发明人： KOHLER WERNER , GRUNEFELD HANS-JOACHIM
IPC分类号： H01H33/12 , H01H33/666 , H01H9/38
CPC分类号： H01H33/6661 , H01H33/122
摘要： A vacuum-type circuit interrupter is provided having an electrically shunting main contact structure, comprising two spaced main stationary contacts associated therewith, and located externally of the vacuum envelope. The spaced main stationary contacts are electrically connected to the opposite terminals of the vacuum interrupter unit. A movable main bridging contact electrically bridges the two spaced main stationary contacts in the closed-circuit position of the device to carry heavy current loads and to thereby relieve the duty imposed upon the separable contacts of the vacuum interrupter unit. Additionally, the movable main bridging contact separates from one of said two spaced stationary main contacts to provide a series disconnecting gap for more adequately withstanding high voltages in the open-circuit position of the device. An operating mechanism is provided including a rotatable crank arm having the pivotal point of attachment of the moving contact of the vacuum interrupter unit positioned more closely to the axis of rotation of the crank arm than is the pivotal point of attachment of the movable main bridging contact. This varies the distance of opening travel between the two contacts. A lostmotion connection if provided between the operating link for the vacuum interrupter unit and a member secured to the movable operating rod of the vacuum-interrupter unit. This is released by camming at the end of the opening stroke to permit reclosure of the separable contacts of the vacuum interrupter unit by spring means. The disconnecting gap may be provided with a plurality of contiguous insulating plates to provide a corrugated internal surface for a greater electrical creepage path across the series disconnecting gap in the open-circuit position of the interrupting device.

79. 发明授权

US3555223A Vacuum circuit interrupters with co-axial movable main and movable auxillary contacts 失效
标题翻译：具有同轴可移动主电源和可移动辅助接点的真空电路中断器
公开(公告)号：US3555223A
公开(公告)日：1971-01-12
申请号：US3555223D
申请日：1968-12-03
申请人： ENGLISH ELECTRIC CO LTD
发明人： ROBINSON ALFRED ALEXANDER , CALVESBERT JAMES WILLIAM
IPC分类号： H01H33/12 , H01H33/662 , H01H33/664 , H01H33/66
CPC分类号： H01H33/66238 , H01H33/12 , H01H33/66261 , H01H33/664 , H01H2033/66246 , H01H2033/66284 , H01H2033/66292
摘要： The load current carrying contacts of a vacuum circuit interrupter are surrounded by a normally open pair of annular contacts which are closed before, and opened after, the load current carrying contacts are opened, so that arcing between the load current carrying contacts is negligible; substantially all the arcing occurring between the annular contacts. Each annular contact may incorporate a helical conductor, the two helical conductors being wound magnetically in opposition, with the advantage that a magnetic field, which causes spreading and rotation of the arc, is established before the arc is struck.

80. 发明授权

US3513275A Circuit breaker with improved current path and contact means 失效
标题翻译：电路断路器具有改进的电流路径和接触方式
公开(公告)号：US3513275A
公开(公告)日：1970-05-19
申请号：US3513275D
申请日：1968-10-04
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： CELLERINI ALBERT R , RICCI LOUIS N
IPC分类号： H01H1/22 , H01H9/38 , H01H73/18 , H01H33/12
CPC分类号： H01H9/383 , H01H1/226 , H01H73/18

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