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71. 发明专利

DE2502322A1 未知
公开(公告)号：DE2502322A1
公开(公告)日：1975-07-24
申请号：DE2502322
申请日：1975-01-21
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： ZEELAND DONALD LEE VAN , SCHUCHMANN RUSSELL PAUL
IPC分类号： H02H3/33 , H02H3/16
摘要： Ground to neutral fault protection employing dormant oscillators which are only energized and function on the occurance of such type of a ground fault. Combined with known types of two and three wire single phase AC ground fault interrupters to provide circuit interruption regardless of which wire is faulted to ground.

72. 发明专利

FR2249430A1 未知
公开(公告)号：FR2249430A1
公开(公告)日：1975-05-23
申请号：FR7434212
申请日：1974-10-11
申请人： CUTLER HAMMER WORLD TRADE INC
IPC分类号： H01H71/16 , H01H71/46 , H01H75/12 , H01H71/40
摘要： A three phase electromagnetically operated circuit breaker for use in a remote control circuit breaker system is disclosed. It features unitary enclosure and mounting of the stationary and movable contact mechanisms, the electromagnetic operating mechanism, the thermally responsive contact trip release mechanism, and the electronic control for the circuit breaker system. The contact trip mechanism is responsive to overload currents in one or more of the phase branches and features novel differential action ambient temperature compensation afforded by ambient temperature responsive bimetal members individual to each of the three phases.

73. 发明专利

AU6209873A GROUND FAULT INTERRUPTER 未知
公开(公告)号：AU6209873A
公开(公告)日：1975-05-01
申请号：AU6209873
申请日：1973-11-01
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： ZEELAND DONALD LEE VAN , SWINEHART MERLE ROBERT
IPC分类号： H02H3/33 , H02H7/26 , H02H3/32
摘要： A ground fault interrupter for two and three wire, single phase load circuits employing a circuit breaker having an electro-responsive contact trip-open mechanism, a fault sensing differential transformer, an operational amplifier providing characteristic output pulses whose magnitude depends upon the non-presence or presence of a ground fault and whether the latter is resistive or reactive in kind, and an energizing circuit for the electro-responsive contact trip-open mechanism including a transistor which is normally held non-conducting in the absence of a ground fault and rendered conducting whenever a resistive ground fault occurs. A capacitor in circuit with the amplifier output and transistor base renders the transistor immune from amplifier pulses characteristic of reactive ground faults. Varistors are included between the load circuit wires to suppress transient voltage surges from falsely inducing nuisance ground fault interrupting action.

74. 发明专利

SE7413297L 未知
公开(公告)号：SE7413297L
公开(公告)日：1975-04-28
申请号：SE7413297
申请日：1974-10-22
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： MALLONEN E A
IPC分类号： H01H71/16 , H01H71/46 , H01H73/48
摘要： A three phase electromagnetically operated circuit breaker for use in a remote control circuit breaker system is disclosed. It features unitary enclosure and mounting of the stationary and movable contact mechanisms, the electromagnetic operating mechanism, the thermally responsive contact trip release mechanism, and the electronic control for the circuit breaker system. The contact trip mechanism is responsive to overload currents in one or more of the phase branches and features novel differential action ambient temperature compensation afforded by ambient temperature responsive bimetal members individual to each of the three phases.

75. 发明专利

SE7413297A 未知
公开(公告)号：SE7413297A
公开(公告)日：1975-04-28
申请号：SE7413297
申请日：1974-10-22
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： MALLONEN E A
IPC分类号： H01H71/16 , H01H71/46 , H01H73/48
CPC分类号： H01H71/46 , H01H71/162 , H01H2071/467

76. 发明专利

NL7411967A 未知
公开(公告)号：NL7411967A
公开(公告)日：1975-03-17
申请号：NL7411967
申请日：1974-09-09
申请人： CUTLER HAMMER WORLD TRADE INC
IPC分类号： H02H3/08 , H02H7/00 , H02J13/00
摘要： An improved electronic control system for a remote control circuit breakers is disclosed. The system employs digital type logic modules which respond to closure and opening of a remote pilot control breaker to initiate and time the duration of energization of set and trip coils of the circuit breaker electromagnetic operator. The modules are so interconnected with RC and transistor circuits that they will automatically respond to, and function equally well, when auxiliary DC power only is available.

77. 发明专利

NO742448L 未知
公开(公告)号：NO742448L
公开(公告)日：1975-02-17
申请号：NO742448
申请日：1974-07-05
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： KOLB A F , GILMORE J J
IPC分类号： H01H50/32 , H01H

78. 发明专利

NO742448A 未知
公开(公告)号：NO742448A
公开(公告)日：1975-02-17
申请号：NO742448
申请日：1974-07-05
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： KOLB A F , GILMORE J J
IPC分类号： H01H50/32 , H01H
CPC分类号： H01H50/323

79. 发明专利

DE2432552A1 未知
公开(公告)号：DE2432552A1
公开(公告)日：1975-01-23
申请号：DE2432552
申请日：1974-07-04
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： SPINK ROBERT W
IPC分类号： H02M7/162 , H02P7/292 , H02P13/24

80. 发明专利

BR7310133D0 未知
公开(公告)号：BR7310133D0
公开(公告)日：1974-12-31
申请号：BR1013373
申请日：1973-12-26
申请人： CUTLER HAMMER WORLD TRADE INC
发明人： PEARSON R , DUNCAN E
IPC分类号： H01H21/28 , H01H
摘要： A limit switch operating head subassembly mountable at its mating surface onto a switch subassembly in any one of a number of different angular positions and may be detached without any parts falling out. The operating head subassembly has an operating arm pivotable in opposite directions for switch actuation. This operating arm is secured to a shaft that operates cams, rockers and slide members to operate an actuating plunger through a presettable mechanism allowing by-pass in one direction. The slide members are internally compression spring biased threaded members allowing stepless length adjustment. The presettable by-pass mechanism has a flanged plunger on a square pin and a notch in the flange to allow presetting the plunger notch at 90 DEG intervals for switch operation in both directions or by-pass in one direction of operating arm movement. The operating shaft has a seal design that enhances sealing effect under fluid pressure and is smaller so as to use less material. An adjustable coupling mechanism transmits the plunger motion to the contact actuator. The stepless length adjustment of the slide members and the adjustment of the coupling mechanism afford adjustment of the plunger motion relative to the mating faces of the operating head and switch subassemblies, respectively, to afford presetting of switch tripping at five degrees of arm movement.

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