| Class 218 | HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES |
| Click here for a printable version of this file | |
Expand/Contract Processing Please Wait
| This Class 218 is considered to be an integral part of Class 200 (see the Class 200 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 200. | ||
![[List of Pre Grant Publications for class 218 subclass 1]](../as.gif) | ![[List of Patents for class 218 subclass 1]](../ps.gif) | 1 | ARC PREVENTING OR EXTINGUISHING DEVICES |
| | 2 |  Multiple break |
| | 3 |  Hybrid-type |
| | 4 | Series connected break |
| | 5 | Simultaneous break |
| | 6 | Sequential break |
| | 7 | Operating mechanism structure or arrangement |
| | 8 | Auxiliary shunt |
| | 9 | Polyphase |
| | 10 | Vacuum switch |
| | 11 | Tubular shaped |
| | 12 | Disconnect switch |
| | 13 | Gas type |
| | 14 | Operating mechanism structure or arrangement |
| | 15 | Arc chute assembly |
| | 16 | Contact structure |
| | 22 | Magnetic blowout |
| | 23 | Permanent magnet |
| | 24 |  Magnetic yoke structure |
| | 25 | Located outside switch housing |
| | 26 | Located inside switch housing |
| | 27 | Connected to contact |
| | 28 | Plural coils |
| | 29 | Arc Spinner |
| | 30 | Contact structure |
| | 34 | Arc chute |
| | 40 | Arc runner (e.g., arc horn) |
| | 41 | Barrier |
| | 42 | Within vacuum |
| | 43 | Air-current blowout |
| | 44 | Polyphase |
| | 45 | Disconnect switch |
| | 46 | Arcing chamber |
| | 48 | Contact structure |
| | 51 | With gas flow means |
| | 53 | With nozzle |
| | 55 | Grounding switch |
| | 56 | Self extinguishing |
| | 57 | Puffer piston |
| | 58 | Polyphase |
| | 59 | With gas blast means |
| | 63 | With nozzle |
| | 65 | Contact structure |
| | 66 | Valve (e.g., blast valve or pressure relief valve) |
| | 67 | Disconnect switch |
| | 68 | Sealed chamber |
| | 69 | Plural switch connected in series |
| | 71 | Polyphase |
| | 72 | With nozzle |
| | 74 | Contact structure |
| | 75 | Busbar |
| | 76 | Arcing chamber |
| | 77 | Shielding |
| | 78 | Operating mechanism structure or arrangement |
| | 79 | Grounding switch |
| | 80 | Disconnect switch |
| | 81 | Arc chute |
| | 82 | Identical units back-to-back |
| | 83 | Recirculating systems |
| | 84 | Operating mechanism structure or arrangement |
| | 85 | Arc extinguishing medium |
| | 86 | Low pressure cut-off valve means |
| | 87 | Magnetic synchronous contacts |
| | 88 | Control of blast valve and contacts |
| | 89 | Interposed non-conductor |
| | 90 | Gas-evolving chamber |
| | 91 | Liquid |
| | 92 | Operating mechanism structure or arrangement |
| | 97 | Housing or tank structure |
| | 100 | Disconnect switch |
| | 101 | Polyphase |
| | 102 | With resistor |
| | 103 | Arcing chamber |
| | 107 | Contact structure |
| | 109 | Valve (e.g., spring biased valve plate) |
| | 110 | Bridging contacts |
| | 111 | Explosion pot |
| | 112 | Oil poor breaker |
| | 113 | Rotary contact |
| | 114 | Pressure generating arc control means |
| | 116 | Puffer-piston |
| | 117 | Solid |
| | 118 | Vacuum |
| | 119 | Polyphase |
| | 121 | Single-pole |
| | 122 | Pressure monitoring means |
| | 123 | Contact structure |
| | 134 | Housing structure |
| | 139 | Housing structure |
| | 140 | Operating mechanism structure or arrangement |
| | 141 | With magnetic coil |
| | 143 | Resistance inserting |
| | 145 | With capacitor |
| | 146 | Contact structure |
| | 148 | Arc runner (e.g., arc horn) |
| | 149 | Arc chute assembly |
| | 152 | Polyphase |
| | 154 | Operating mechanism structure or arrangement |
| | 155 | Housing structure |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |