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Class Information
Number: 361/1
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices
Description: Subject matter relating to the safety and protection of electrical systems and devices which include either fault sensing means which activate a protective means to remove a fault condition or a protective means which detects and removes the fault condition.










Sub-classes under this class:

Class Number Class Name Patents
361/2 Arc suppression at switching point (i.e., includes solid-state switch) 231
361/71 Automatic reclosing 122
361/52 By regulating source or load (e.g., generator field killed) 34
361/15 Capacitor protection 111
361/59 Circuit automatically reconnected only after the fault is cleared 102
361/103 Circuit interruption by thermal sensing 778
361/22 Compressor protective circuits 125
361/62 Feeder protection in distribution networks 276
361/20 Generator protective circuits 172
361/42 Ground fault protection 1,388
361/117 High voltage dissipation (e.g., lightning arrester) 536
361/58 Impedance insertion 806
361/54 Load shunting by fault responsive means (e.g., crowbar circuit) 157
361/23 Motor protective condition responsive circuits 557
361/51 Overspeed responsive 46
361/77 Reverse phase responsive 74
361/67 Series connected sections with faulty section disconnect 74
361/19 Superconductor protective circuits 248
361/109 Too large fault makes breaker inoperative 11
361/35 Transformer protection 126
361/110 Transient nonresponsive (e.g., ignores surge on transmission line) 102
361/111 Transient responsive 1,954
361/18 Voltage regulator protective circuits 1,004
361/114 With manual or automatic opening of breaker and manual reclose 48
361/76 With phase sequence network analyzer 122
361/112 With space discharge means 58
361/115 With specific circuit breaker or control structure 727
361/93.1 With specific current responsive fault sensor 888
361/78 With specific quantity comparison means 275
361/107 With specific transmission line (e.g., guarded) 57
361/88 With specific voltage responsive fault sensor 314
361/113 With tuned circuit 204


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8694409 Using bi-directional communications in a market-based resource allocation system Apr. 8, 2014
8666026 Systems and methods for providing notifications of hazardous ground conditions in telecommunication equipment Mar. 4, 2014
8648851 Liquid crystal display device Feb. 11, 2014
8650528 Electric information processing method in CAD system, device thereof, program, and computer-readable storage medium Feb. 11, 2014
8634169 Anti-lightning automatic switch for a satellite television receiver Jan. 21, 2014
8624748 Floating roof monitoring system Jan. 7, 2014
8604931 Electronic device for driving safety Dec. 10, 2013
8583954 Power source coupling and decoupling in medical device Nov. 12, 2013
8537022 Method and device for configurable ground monitoring of a workbench Sep. 17, 2013
8508332 Access control Aug. 13, 2013
8503136 Protecting circuit and control circuit for reducing leakage current Aug. 6, 2013
8494178 Avoiding audio feedback Jul. 23, 2013
8482884 Emergency utility interruption system Jul. 9, 2013
8471507 Electric power conversion system and electric power conversion device Jun. 25, 2013
8466689 Methods and systems for monitoring capacitor banks Jun. 18, 2013
8436352 Semiconductor integrated circuit May. 7, 2013
8435427 Compositions having non-linear current-voltage characteristics May. 7, 2013
8423321 Transfer of a component with effect on the safety function from the safety-relevant area Apr. 16, 2013
8410745 Controller for motor, and vehicle Apr. 2, 2013
8405936 Power diverter having a MEMS switch and a MEMS protection switch Mar. 26, 2013
8405937 Controller for platform doors Mar. 26, 2013
8385028 Galvanic isolator Feb. 26, 2013
8351168 Open circuit detector and method therefore Jan. 8, 2013
8344701 Electronic apparatus with fake charging preventing function and method thereof Jan. 1, 2013
8325052 Over-current protection apparatus Dec. 4, 2012
8284536 Surge protection module for luminaires and lighting control devices Oct. 9, 2012
8285402 Method and system for safety monitored terminal block Oct. 9, 2012
8278862 Motor control systems, foldable partitions employing motor control systems, methods of monitoring the operation of electric motors and foldable partitions Oct. 2, 2012
8278882 Charging monitor Oct. 2, 2012
8264280 Load driving circuit Sep. 11, 2012
8242901 ASI network for explosion-hazard areas Aug. 14, 2012
8228647 Electrical power diagnostic system Jul. 24, 2012
8180526 Equipment for vehicle and communication interface circuit for use in this equipment May. 15, 2012
8159165 Motor drive circuit Apr. 17, 2012
8159792 Motor control device Apr. 17, 2012
8134810 Protective circuit arrangement Mar. 13, 2012
8120306 Voltage source inverter with a voltage offset Feb. 21, 2012
8112469 Emergency override system and method for network devices Feb. 7, 2012
8081491 External neutral current sensor matched to a circuit breaker Dec. 20, 2011
8050002 Housing arrangement for fault determination apparatus and method for installing the same Nov. 1, 2011
8040096 Rotary electric system with star-connected multiphase stator windings Oct. 18, 2011
8030862 Methods and systems for operating direct current motors Oct. 4, 2011
8004803 Variable speed drive Aug. 23, 2011
7990670 Protective circuitry for electronic device Aug. 2, 2011
7969107 Motor control device Jun. 28, 2011
7948205 Multi-phase AC motor driving device May. 24, 2011
7900077 Power supplying method and apparatus and a system using the same Mar. 1, 2011
7899630 Metering device with control functionality and method thereof Mar. 1, 2011
7886098 Memory access security management Feb. 8, 2011
7848122 Terminator for reducing differential-mode and common-mode voltage reflections in AC motor drives Dec. 7, 2010

1 2 3 4 5 6










 
 
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