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Class Number: 361 Class Title: ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES Subclass Subclass Number Title 1 SAFETY AND PROTECTION OF SYSTEMS AND DEVICES 2 .Arc suppression at switching point (i.e., includes solid-state switch) 3 ..Synchronized or sequential opening or closing 4 ...Counter electromotive force 5 ...With current sensitive control circuit 6 ...With voltage sensitive control circuit 7 ...With combined voltage and current sensitive control circuit 8 ...Shunt bypass 9 ....With sequentially inserted impedance 10 ..By inserting series impedance 11 ...Nonlinear impedance 12 ...By arc stretching (e.g., horn gap) 13 ..Shunt bypass of main switch 14 ..Arc blowout for main breaker contact (e.g., electromagnet, gas, fluid, etc.) 15 .Capacitor protection 16 ..Series connected capacitors 17 ..Shunt connected capacitors 18 .Voltage regulator protective circuits 19 .Superconductor protective circuits 20 .Generator protective circuits 21 ..Voltage responsive 22 .Compressor protective circuits 23 .Motor protective condition responsive circuits 24 ..Current and temperature 25 ..Motor temperature 26 ...With bimetallic sensor 27 ...With thermistor sensor 28 ..With time delay 29 ...During energization of motor 30 ..Current and voltage 31 ..Current 32 ...Bimetallic element 33 ..Voltage 34 ...Bimetallic element 35 .Transformer protection 36 ..With differential sensing means 37 ..With temperature or pressure sensing means 38 ..Transformer with structurally combined protective device 39 ...With lightning arrester and fuse 40 ...With lightning arrester (e.g., spark gap) 41 ...With fuse 42 .Ground fault protection 43 ..Fault suppression (e.g., Petersen coil) 44 ..With differential sensing in a polyphase system 45 ..With differential sensing in a single phase system 46 ...With more than two wires 47 ..In a polyphase system 48 ...With more than three wires 49 ..In a single phase system 50 ...With more than two wiress 51 .Overspeed responsive 52 .By regulating source or load (e.g., generator field killed) 53 ..Prime mover control 54 .Load shunting by fault responsive means (e.g., crowbar circuit) 55 ..Disconnect after shunting 56 ..Voltage responsive 57 ..Current responsive 58 .Impedance insertion 59 .Circuit automatically reconnected only after the fault is cleared 60 ..With differential voltage comparison across the circuit interrupting means 61 ..Reclosing of the nonfaulty phases of a polyphase system 62 .Feeder protection in distribution networks 63 ..With current responsive fault sensor 64 ...With communication between feeder disconnect points 65 ..With current and voltage responsive fault sensors 66 ...With communication between feeder disconnect points 67 .Series connected sections with faulty section disconnect 68 ..With communication between disconnect points 69 ...Pilot wire communication 70 ..Constant current system 71 .Automatic reclosing 72 ..With lockout means 73 ...Including timer reset before lockout 74 ..Continuous 75 ...With time delay before reclosing 76 .With phase sequence network analyzer 77 .Reverse phase responsive 78 .With specific quantity comparison means 79 ..Voltage and current 80 ...Distance relaying 81 ....With communication means between disconnect points 82 ...Reverse energy responsive (e.g., directional) 83 ...With time delay protective means 84 ..Reverse energy responsive (e.g., directional) 85 ..Phase 86 ..Voltage 87 ..Current 88 .With specific voltage responsive fault sensor 89 ..With time delay protective means 90 ..Overvoltage and undervoltage 91 ..Overvoltage 92 ..Undervoltage 93 .With specific current responsive fault sensor 94 ..With time delay protective means 95 ...With instantaneous override 96 ....With multiple timing characteristics (e.g., short, long) 97 ...With multiple timing characteristics 98 ...Transistorized 99 ...Combined thermal-electromagnetic relay 100 ..With semiconductor circuit interrupter (e.g., SCR, Triac, Tunnel Diode, etc.) 101 ...With transistor circuit interrupter 102 ..With mechanical circuit breaker 103 .Circuit interruption by thermal sensing 104 ..With fusee 105 ..With bimetallic element 106 ..With thermistor 107 .With specific transmission line (e.g., guarded) 108 ..Plural conductors in single sheath (e.g., compound) 109 .Too large fault makes breaker inoperative 110 .Transient nonresponsive (e.g., ignores surge on transmission line) 111 .Transient responsive 112 .With space discharge means 113 .With tuned circuit 114 .With manual or automatic opening of breaker and manual reclose 115 .With specific circuit breaker or control structure 116 ..Pneumatically operated circuit breaker 117 .High voltage dissipation (e.g., lightning arrester) 118 ..Surge prevention (e.g., choke coil) 119 ...In communication systems 120 ..Vacuum or gas filled space discharge 121 ..Fluid (e.g., mercury, quenching) 122 ...Electrolytic 123 ...Gas blast 124 ..Thermal (e.g., fusible, bimetallic) 125 ...With cutout (e.g., blowout type) 126 ..Current limiting material in discharge path 127 ...Nonlinear material (e.g., valve type) 128 ....With plural gaps in discharge path 129 ..Plural gaps with common electrode 130 ..Plural gaps serially connected 131 ..Combined (e.g., with disconnect switch) 132 ...With line supporting insulator 133 ..With magnetic means (e.g., electromagnet) 134 ...Arc stretching (e.g., blowout) 135 ....By separating contacts 136 ...For grounding line 137 ..Horn gap 138 ...With resistance insertion 139 CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES 140 .Including compensation for thermal change of electromagnetic device 141 .Including superconductivity 142 .Including housing 143 .Systems for magnetizing, demagnetizing, or controlling the magnetic field 144 ..For lifting or holding 145 ...Magnetic chuck-type 146 ..Systems for magnetic field stabilization or compensation 147 ..With permanent magnet 148 ...Calibration or permanent magnet 149 ..Demagnetizing 150 ...Television degaussing 151 ...Magnetic tape 152 ..Including particular drive circuit 153 ...Pulse initiated 154 ...Including means to establish plural distinct current levels (e.g., high, low) 155 ....With capacitor charging or discharging through coil 156 ...With capacitor charging or discharging through coil 157 .Including instrument (e.g., meter-relay) 158 ..Temperature indicating instrumentt 159 .Including means for using, or compensating for, the induced EMF of the electromagnetic device 160 .For relays or solenoids 161 ..Including thermal device 162 ...Thermoelectric 163 ...Bimetallic element 164 ....Including heater 165 ...Thermistor 166 ..Plural relays or solenoids sequentially operated 167 ...Alternately operated 168.1 ...Pulse responsive 169.1 ....Including electronic element 170 ..Condition responsive (e.g., external circuit condition) 171 ...Code responsive 172 ....Including electronic element 173 ...Light 174 ....Light sensor controls its light path 175 ....Including electronic element 176 .....Plural light sensors 177 ....Plural light sensors 178 ...Fluid (e.g., liquid level, humidity) 179 ...Proximity or contact 180 ....Metal presence or absence responsive 181 ....Capacitance change-type 182 ...Frequency (e.g., audio, radio) 183 ....Plural relays or solenoids as loads 184 ....Specific frequency responsive relay 185 ...Phase 186 ...Pulse 187 ...Voltage or current level discriminators 188 ...Variable impedance 189 ..Plural switches in control circuit 190 ...Including electronic switch 191 ..Plural relay or solenoid load selectively operated 192 ...Including interlock 193 ....Electronic interlock 194 ..Holding means 195 ..Time delay 196 ...Including semiconductor device connected to timing element 197 ....Threshold device (e.g., zener, schockley diode) 198 .....Including three or more electrodes (e.g., unijunction) 199 ...Including electric discharge device 200 ....Threshold device (neon tube) 201 .....Including thyratron 202 ...Electromechanical delay means 203 ..With oscillator 204 ..With magnetic amplifier or saturable reactor 205 ..Threshold device (e.g., SCR, thyratron) 206 ..Particular relay or solenoid 207 ...Electrostatic 208 ...Polarized 209 ...Alternating current type 210 ...Plural coils 211 CONTROL CIRCUITS FOR NONELECTROMAGNETIC TYPE RELAY (E.G., THERMAL RELAYS) 212 DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE (E.G., STATIC ELECTRICITY) 213 .By charged gas irradiationn 214 .Of paper or paper handling machine 215 .Of storage or hazardous area or fluid handling 216 .Structurally combined with building or vehicle 217 ..With external structure of vehicle 218 ...Aircraft 219 ...Chain-type grounding means 220 .Specific conduction means or dissipator 221 ..Brush- or roller-type structure 222 ..Rod-type structure 223 ..Shoe type 224 ...Integral with shoe 225 ELECTRIC CHARGING OF OBJECTS OR MATERIALS 226 .Particulate matter (e.g., liquids with suspended particles) 227 ..For spray production 228 ...Liquid type 229 .By charged gas irradiation 230 ELECTRIC CHARGE GENERATING OR CONDUCTING MEANS (E.G., CHARGING OF GASES) 231 .Modification of environmental electric charge 232 .For application to living beings 233 .Use of forces of electric charge or field 234 ..Pinning 235 .With specific power supply 236 ELECTRICAL SPEED SIGNAL PROCESSING SYSTEMS 237 .With centrifugal weight means 238 .Antislip detection and circuitry 239 .With speed analog electrical signal 240 .Including frequency generators 241 .Two position (e.g., on-off) 242 .With speed comparison 243 .Synchronization of shafts 244 ..Phase comparison 245 POLARITY REVERSING 246 .Automatic 247 IGNITING SYSTEMS 248 .For explosive devices 249 ..With sequential firing by electronic switching 250 ..With sequential firing by mechanical switching 251 ..With capacitor discharging into explosive device 252 ..With electromechanical power source 253 .For electric spark ignition 254 ..With electromagnet control means 255 ...Including spark electrode make-break 256 ..With capacitor discharging into sparking transformer 257 ..With capacitor discharge into spark gap 258 ..With electromechanical generator 259 ...With permanent magnet 260 ...With piezoelectric element 261 ..With mechanical arrangement for spark electrode make-break 262 ..With one spark electrode which is hand held 263 ..With spark coil or transformer 264 .For incandescent ignition 265 ..With electromagnet control means 266 ..With helical heating element 267 DEMAGNETIZING SYSTEMS AND PROCESSES 268 TRANSFORMERS AND INDUCTORS WITH INTEGRAL SWITCH, CAPACITOR, OR LOCK (E.G., IGNITION COIL) 269 .With lock for preventing unauthorized usee 270 .With capacitor element 271 ELECTROSTATIC CAPACITORS 272 .With protection or compensating means 273 ..Self-healing 274.1 ..Temperature 274.2 ...With fluid cooling means 274.3 ...With heat sink 275.1 ..For electrical irregularities 275.2 ...With over-pressure breakaway fuse 275.3 ...With resistance element 275.4 ...With thermal fuse 276 .Cryogenic 277 .Variable 278 ..With significant electrode or terminal feature 279 ..Gas or vacuum dielectric 280 ..Responsive to external condition 281 ...Electrical 282 ...Thermal 283.1 ...Pressure 283.2 ....By displacement of stylus or lever 283.3 ....By differential capacitor 283.4 ....By diaphragm 284 ...Liquid level 285 ...Fluid flow 286 ...Humidity 287 ..Mechanically variable 288 ...Push button 289 ...Motor driven 290 ...By varying distance between electrodes 291 ....Compression type 292 ...By varying effective area of electrode 293 ....Disk trimmer 294 ....Direct travel piston type 295 ....Piston trimmer 296 ....Sliding plates 297 ....Spiral or helical plates 298.1 ....Rotary plates 299.1 .....Plural capacitors 299.2 ......Details of electrical connecting means (e.g., terminal or lead) 299.3 ......Details of mounting means 299.4 ......With adjustment means 299.5 ......Details of insulator feature 298.2 .....Details of plate feature 298.3 .....Details of dielectric 298.4 .....Details of electrical connecting means (e.g., terminal or lead) 298.5 .....With adjustment means 300 ...With controlling or indicating means 301.1 .Fixed capacitor 301.2 ..Special type (e.g., "bypass" type) 301.3 ..Encapsulated 301.4 ..Stack 301.5 ..Wound 302 ..Feed through 303 ..Significant electrode feature 304 ...Non-self-supporting electrodes 305 ...Materiall 306.1 ..Details of electrical connection means (e.g., terminal or lead) 306.2 ...For decoupling type capacitor 306.3 ...For multilayer capacitor 307 ...Lead extends into body of capacitor 308.1 ...Lead attached to edge of capacitor 308.2 ....Cap 308.3 ....Wire 309 ....Metallized terminal 310 ...Lead extends around at least a portion of capacitor 311 ..Solid dielectric 312 ...Plural dielectrics 313 ....Layered 314 ....Impregnated 315 .....With specific impregnant 316 ......Including wax 317 ......Including halogen (e.g., chlorinated) 318 .......With stabilizer or modifying substance 319 .....With stabilizer or modifying substance 320 ....Ceramic and glass 321.1 ...Ceramic, glass, or oxide particles 321.2 ....With multilayer ceramic capacitor 321.3 .....Including metallization coating 321.4 .....Composition 321.5 ....Composition 321.6 ....With tubular capacitor 322 ....Oxide film 323 ...Plastic 324 ...Fibrous or fabric (e.g., paper, etc.) 325 ...Mica 326 ..Vacuum or gas dielectric 327 ..Liquid dielectric 328 ..Multiple capacitors 329 ...Distinct physically 330 ...Shared electrode 600 HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS 601 .For electrical power distribution systems and devices 602 ..Distribution station (i.e., substation) 603 ...Having transformer 604 ...Gas insulated 605 ..Electrical switchgear 606 ...Truck type 607 ....With interlock 608 ...Drawer type 609 ....With interlock 610 ...Pivoted support means 611 ...Busbar arrangements 612 ....Gas insulated 613 ....Liquid insulated 614 ....With plural removable control units in housing 615 ...With interlock 616 ....Door or cover type 617 ....Shutter type 618 ...Gas insulated 619 ...Having gas circuit breaker 620 ...Having transformer 621 ...Having isolating switchh 622 ..Distribution or control unit 623 ...Having transformer 624 ...Having busbar arrangement 625 ...Portable 626 ...Having fuse or relay 627 ..Distribution or control panel board 628 ...With switches and fuses 629 ....Unit block 630 ...With fuses 631 ...With switches 632 ....With switch actuating arrangements 633 ...Plugboards 634 ...With circuit breaker arrangements 635 ....With discriminating means 636 ....Plug-in or removable 637 ...Busbar or conductor arrangements 638 ....U-shaped member 639 ....With horizontal busbar 640 ....With removable or plug-in connection 641 ..Electrical service distribution box 642 ...With fuse 643 ...With switch 644 ...Including panel board 645 ....Adjustable panel 646 ....With fuse support means 647 ....With switch support means 648 ....Busbar arrangements 649 .....U-shaped member 650 .....Spaced parallel relationship 651 ....Panel board corner mountings 652 ....Circuit breaker supporting arrangements 653 .....With discriminating means 654 .....With tamper prevention means 655 .....Having two row arrangement 656 .....With plug-in circuit breakers 657 ...With removable member 658 ...With plastic enclosure or support 659 ..For electricity service meter 660 ...Plural 661 ...With meter circuit controller 662 ....Bypass arrangement 663 ....With transformer or circuit breaker 664 ...Meter mounting arrangements 665 ....Adaptable meter supports 666 ....Retractable or detachable meter support 667 ....Removable cover 668 ...Meter terminal and connector arrangements 669 ....Terminal block 670 ....Contact blade receiving structure 671 ....Adjustable or adaptable contacts 672 ...Tamper resistant 673 ..Circuit breaker supporting means (i.e., attaching, mounting, etc.) 674 ..For ballast elements 675 ..Bus duct 676 ..With cooling means 677 ...Fluid 678 ....Airr 679 .For electronic systems and devices 680 ..Including keyboard support 681 ..Including display support 682 ...CRT support 683 ..Computer related support 684 ...Memory unit support 685 ....Disk drive support 686 ...Input/output device support 687 ...With cooling means 688 ..With cooling means 689 ...Fluid 690 ....Air 691 .....Pressurized or conditioned 692 .....Plural Openings 693 ......Circular 694 .....With air circulating means 695 ......Fan or blower 696 .......With heat exchanger unit 697 .......With heat sink or cooling fins 698 .....And liquid 699 ....Liquid 700 .....Change of physical state 701 ....With heat exchanger unit 702 ....With cold plate or heat sink 703 ....With cooling fins 704 ...Thermal conduction 705 ....By specific coating 706 .....Containing silicon or aluminum 707 ....Through support means 708 .....Specific chemical compound or element 709 .....Heat sink 710 ......Details 711 ......Cooling plate or bar 712 .....Thermally and electrically conductive 713 .....Electrically insulating thermally conductive 714 ....Through component housing 715 ....For module 716 .....Plural 717 ....For active solid state devices 718 .....For integrated circuit 719 ......Circuit board mounted 720 ....For printed circuit board 721 .....Plural 722 ....For electronic circuit 723 ....For lead frame 724 ..Cabinet-type housing 725 ...With retractable or readily detachable chassis 726 ....With locking means or device 727 ....Sliding component or commpartment 728 ..Module 729 ...Plural 730 ....With housing 731 .....Interchangeable 732 .....Having lock or interlock 733 .....Selective connections 734 ....With coupling or decoupling capacitor 735 ....Stacked 736 ...With printed circuit boardss 737 ....IC card or card member 738 ....With resistor and capacitor 739 ....With particular material 740 ....With locking means or device 741 ....Guiding means 742 ....With spacer 743 ....Solder connection 744 ....Cordwood type 745 .....Welded connection 746 ...With specific dielectric material or layer 747 ...With locking means or device 748 ..Printed circuit board 749 ...Flexible board 750 ....With specific dielectric material or layer 751 ....With particular conductive material or coating 752 ...With housing or chassis 753 ....Specific chassis or ground 754 ....With ejector means 755 ....Rotatable 756 ....Guiding means 757 ....With particular material 758 ....With spacer 759 ....With lock or interlock 760 ...Connection of components to board 761 ....Component within printed circuit board 762 .....With specific dielectric material or layer 763 .....Capacitor and electrical component 764 .....Integrated circuit 765 ....By direct coating of components on board 766 .....Capacitor and resistor 767 ....With mounting pad 768 .....Having leadless component 769 .....Having spring member 770 .....Having spacer 771 .....Having particular material 772 ....With specific lead configuration 773 .....Shaped lead on components 774 .....Shaped lead on board 775 .....Busbar 776 .....Flexible connecting lead 777 ....By specific pattern on board 778 .....Cross-connected 779 .....With specific connection material 780 ....Different voltage layers 781 ....With switch 782 ....Having passive component 783 ....Having semiconductive device 784 ...Plural 785 ....With separable connector or socket means 786 .....Having key connection 787 .....Having spring member 788 .....Having backplane connection 789 .....Having flexible connector 790 .....Stacked 791 .....Multiple contact pins 792 ....Plural contiguous boards 793 .....Thick film component or material 794 .....Power, voltage, or current layerr 795 .....Plural dielectric layers 796 ....With housing or chassis 797 .....Storage or file cabinet 798 .....With ejector or extractor 799 .....Grounding Construction or Detail 800 .....With Shielding Structure 801 .....Specific latching or retaining device 802 .....Specific alignment or guide means 803 ....Interconnection details 804 ....Spacer details 805 ..Matrix assembly 806 ...Diode 807 ..Component mounting or support means 808 ...Mounting pad 809 ...With discrete structure or support 810 ...Plural mounting or support 811 ...With passive components 812 ...With particular insulation 813 ..Lead frame 814 ..Radio type 815 ...Tube mounting 816 ..Shielding 817 ...For electronic tube 818 ...EMI 819 ..For relay 820 ..For semiconductor device 821 ..For capacitor and inductor 822 .Contact banks 823 .Terminal block 824 ..With protective device or unit 825 .Support brackets 826 .Wire distribution (e.g., harness, rack, etc.) 827 ..With interconnecting cable 828 ..With switchboard or switch 829 .Frame 830 ..With plurality of capacitors 831 ..With cooling means 832 ..With switchboard or switch 833 .Fuse block 834 ..Plural 835 .Fuse pullout device 836 .For transformer 837 .For switch or fuse 500 ELECTROLYTIC SYSTEMS OR DEVICES 501 .Coulometer (i.e., electrochemical timer) 502 .Double layer electrolytic capacitor 503 .Liquid electrolytic capacitor 504 ..With significant electrolyte 505 ...Salt solute 506 ...Ethylene glycol 507 ...With depolarizer 508 ..Anode type electrode 509 ...Aluminum or tantalum 510 ...Anode riser 511 ...Wound 512 ....With separator 513 ....With mounting means (e.g., anchoring means or clamping) 514 ....With heat conductor (e.g., heat sink)) 515 ....With common conductor (e.g., stripline) 516 ..Cathode type electrode (e.g., cathode casing) 517 ..Casing 518 ...With hermetic seal 519 ...With header, cover, or endseal 520 ....Significant electrical connection means (e.g., terminals or leads) 521 ...With vent means 522 ..Multiple capacitors 523 .Solid electrolytic capacitor (e.g., dry electrolytic capacitor) 524 ..Dielectric 525 ..With significant electrolyte or semiconductor 526 ...Paste or gel 527 ...Organic salt (e.g., TCNQ) 528 ..Anode type electrode 529 ...Aluminum or tantalum 530 ...Wound 531 ....With lead conductor 532 ..Cathode type electrode 533 ...With significant lead 534 ..With protection means 535 ..Casing 536 ...With hermetic seal 537 ...With header, cover, or endseal 538 ....Significant electrical connection means (e.g., terminals or leads) 539 ....With potting 540 ..With terminal 541 ..Multiple capacitors 434 .Systems (e.g., plural cells, standby exciting voltage) 435 .Current interruption type (e.g., circuit breaker, D.C.-to-pulse converters) 436 .Rectifiers 437 MISCELLANEOUS