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Class Number: 174 Class Title: ELECTRICITY: CONDUCTORS AND INSULATORS Subclass Subclass Number Title 1 MISCELLANEOUS 2 LIGHTNING PROTECTION 3 .Rods 4 R AIR TERMINALS 4 C .Coated and radioactive 5 R ELECTRIC SHOCK HAZARD PROTECTIVE DEVICES 5 SB .Shock protection, body insulation 5 SG .Shock protection, grounding devices 6 EARTH GROUNDS 7 .Driving type 8 WITH FLUIDS OR VACUUM 9 R .Current conductive fluid and/or vacuum 9 F ..Conductive fluid 10 .With cable or conduit preinstallation devices 11 R .With fluid-condition responsive and/or indicating means 11 BH ..Bushings 12 R .With expansion and contraction means 13 ..Built into conduit or cable 12 BH ..Expansion bushings 14 R .With fluid maintenance or conditioning means 14 BH ..Bushings 15.1 .With cooling or fluid feeding, circulating or distributing 15.2 ..By heat pipe 15.3 ..For bushing or pothead 15.4 ..Superconductive type 15.5 ...For cable, conductor or joint 15.6 ..For cable, conductor or joint 15.7 ..For welding or furnace cable 16.1 ..By ventilation or gas circulation 16.2 ...Of bus bars or bus ducts 16.3 ...With heat sink 17 R .Boxes and housings 17.05 ..Hermetic sealed envelope type (e.g., with exhaust stem) 17.06 ...Liquid seal 17.07 ...Combined lead-in and exhaust tube 17.08 ...With electric connector 18 ..With bushing, terminal or lead-in 17 LF ..Liquid filled 17 GF ..Gas filled 17 SF ..Solid filled 17 VA ..Venting, absorption, expansion 17 CT ..Closures, terminals, gaskets 19 .Conduit or cable end structure 20 ..With fluid stops 21 R .Conduit or cable joints 22 R ..With fluid stops 22 C ...Concentric 21 JS ..Joints: separable 21 JR ..Joints: rotatable 21 JC ..Joints: rotatable, coaxial 21 C ..Joints: coaxiall 21 CA ..Joints: coaxial angle expansion 23 R .With fluid stops 23 C ..Compositions 24 .Conduits, cables and conductors 25 R ..Impregnated insulation type 26 R ...Multiple conductor 26 G ....Gas filled 25 C ...Impregnating compositions 25 G ...Gas filled 25 P ...Processes 27 ..Parallel or twisted conductors 28 ..Coaxial or concentric type 29 ...With spiral spacer 30 .Insulators 31 R ..Axial passage and/or through wall or plate 31.5 ...Liquid sealed joint 31 S ...Spark plugs 32 ANTI-INDUCTIVE STRUCTURES 33 .Conductor transposition 34 ..Conduit or cable structure 35 R .Shielded or screened 36 ..Conductor only 35 C ..Connectors and joints 35 SM ..Spark plugs, manifolds 35 GC ..Gaskets, covers 35 CE ..Coils, anti-eddy-current 35 MS ..Materials, stock and screen rooms 35 TS ..Radio tube shields 37 UNDERGROUND 38 .Distributing and/or combined with overhead 39 .Street, sidewalk, gutter or curb structure 40 R OVERHEAD 41 .With messenger cable 42 .With conductor vibration damping means 43 .Distributing and/or plural point support 44 .With connector or wire fanning arrangements 45 R .Towers, poles or posts 45 TD ..Tension devices 40 CC .Ground clamps and cable clips 40 TD .Tension devices 46 HANDLES 47 COMBINED FLUID CONDUIT AND ELECTRICAL CONDUCTOR 48 WALL MOUNTED CONDUITS AND/OR HOUSINGS 49 .Plural outlet and/or conduit 50 BOXES AND HOUSINGS 50.5 .Hermetic sealed envelope type 50.51 ..With covering or casing for envelope 50.52 ..With electrical connector 50.53 ...Envelope portion forms connector 50.54 ..With mounting means for a device within envelope 50.55 ..Hollow lead surrounding another lead (e.g., concentric type) 50.56 ..Lead-in insulated from metal wall 50.57 ..Stem or sealing disk attached to envelope neck 50.58 ...By fused-type seal 50.59 ..With shield for lead-in seal or between the lead-in conductors 50.6 ..Plural lead-inn 50.61 ..With bonded seal for conductive member (e.g., glass to metal) 50.62 ...With cement or plastic 50.63 ...Metal disk or ring-type seal 50.64 ...Foil or flat lead-in 51 .With grounding means 52.1 .With electric device or mounting means therefor 52.2 ..Potted or encapsulated 52.3 ..Sealed 52.4 ...Flat housing for electronic device (e.g., flat pack, dual-in-line package) 52.5 ...Header, mounting stud, or can-type housing for semiconductor or crystal 52.6 ...Pellet type housing 53 ..Plug receptacle or wall switch type 54 ...With fixture coupling or mounting means 55 ...Unitary with face plate 56 ....External 57 ...Adjustable 58 ...With box or housing mounting means 59 ..With connectors 60 ...Cable or conduit terminal casings 61 ..Fixtures coupling or mounting means 62 ...Stud or nipple 63 ....With box supporting means 64 ....With conduit or cable coupling means 65 R .With conduit or cable opening, coupling means or hole closures 65 SS ..Sealed stuffing-gland type 65 G ..Grommet type 66 COVERS OR FACE PLATES 67 .With closure for face plate opening 68.1 CONDUITS, CABLES OR CONDUCTORS 68.2 .Bus bars or bus ducts (Residual) 68.3 .Single duct conduits 250 .Preformed panel circuit arrangement (e.g., printed circuit) 251 ..With encapsulated wire 252 ..With cooling means 253 ..Micropanel 254 ..Convertible shape (e.g., flexible) or circuit (e.g., breadboard) 255 ..With particular substrate or support structure 256 ..With particular material 257 ...Conducting (e.g., ink) 258 ...Insulating 259 ...Adhesive/bonding 260 ..With electrical device 261 ..With particular conductive connection (e.g., crossover) 262 ...Feedthrough 263 ....With solder 264 ....Voidless (e.g., solid) 265 .....Preform in hole 266 ....Hollow (e.g., plated cylindrical hole) 267 ...Termination post 268 ..With single conductive plane (e.g., tape, cable) 69 .Extensible 70 R .Combined 71 R ..Branchedd 72 R ...Multi-duct conduit and/or plural branch 72 A ....Wire harness 72 B ....Bus bars 72 C ....Casing, moldings 72 TR ....Ribbon type 71 B ...Bus bars 71 C ...Coaxial 73.1 ..With joint or end structure conductive stress distributing means 74 R ..With end structure 75 R ...With joint 75 B ....Bootleg 75 D ....With detachable joint (e.g., potheads) 75 F ....Flexible spring type 75 C ....Coaxial 76 ...Plastic filled 77 R ...Sealing 77 S ....Spark plugs 78 ...With grounding means 79 ...With supporting means 80 ...With insulator skirts 81 ...Elbow or hood outlet type 82 ...End cap outlet type 83 ...Lining thimble 74 A ...Insulating cap or sleeve 84 R ..With joints 85 ...Axially insulated joint sleeve sections 86 ...Angularly movable or adjustable 87 ...Angular 88 R ...Plural conductor and/or duct 88 B ....Bus bars 88 C ....Coaxial 88 S ....Separable 89 ...Radially spread or flanged sheath or conduit 90 ...Stranded conductor 91 ...Divided joint sleeves 92 ....Longitudinally 93 ...Sleeve and end cap-type casing 94 R ...Bare-conductor 94 S ....Separable 84 C ...Crimped 84 S ...Separable 70 S ..Submarine repeater housings 70 B ..Bus bars 70 C ..Conduits or strips 70 A ..Aerial cable 95 .Plural duct 96 ..Embedded conduit-ducts or conductors 97 ..Grooves or channels 98 .With embedded conduit-duct or conductor 99 R .With interior conductor or cable supports 100 ..Vertical conductor or cable 99 B ..Bus bars 99 E ..Expansion 101 .Removable wall 101.5 .Buoyant 102 R .Conductive armor or sheath 103 ..Plural individually sheathed or armored conductorss 104 ...Embedded in shield 105 R ..Plural, insulated 105 SC ...Semiconducting 105 B ...Segmental 106 R ..Plural, conductively contacting or composite 106 SC ...Semiconducting 106 D ...Corrugated 107 ..Protected by nonconductive layer 108 ..Spirally applied 109 ...Overlapping or interlocking 102 A ..Alloys 102 SC ..Semiconducting 102 C ..Sheath coated 102 SP ..Strip, type, perforated, slotted 102 P ..Powdered insulation 102 D ..Corrugated 102 E ..Rope 110 R .Insulated 111 ..With beads or disc 112 ..With identifying means 113 R ..Multiple conductor 114 R ...Split conductor 114 S ....Segmental reentrant 115 ...Dissimilar or auxiliary conducting elements 116 ...With filler insulation 117 R ...Assemblies of noncircular section 117 F ....Flat or ribbon type 117 FF ....Conductor itself is flat 117 M ....Mesh 117 AS ....Air-spaced 117 A ....Adhesive 113 A ...Radially compressed 113 AS ...Air-spaced 113 C ...Insulating core 118 ..With powdered or granular material 119 R ..Composite or noncircular strand section 119 C ...Coated, compositions 120 R ..Plural or impregnated layers 121 R ...Fibrous or fabric with plastic or coating materials 121 A ....Flame, weather or mold proof 121 B ....Cellulose 121 AR ....Rubber 121 SR ....Synthetic resin 122 R ...Fibrous or fabric 122 G ....Glass 122 C ....Coated 120 C ...Coated or impregnated 120 FP ...Fluid-type cable paper 120 SC ...Semiconducting 120 AR ...Rubber 120 SR ...Synthetic resin 124 R ..Fibrous or fabric 124 G ...Mineral-glass 124 GC ...Mineral-glass, coated 110 A ..Oxide 110 P ..Cellulose 110 AR ..Rubber 110 SR ..Synthetic resinn 110 SY ..Styrene 110 B ..Isobutylent 110 N ..Polyamide (Nylon) 110 PM ..Polyethylene (including "Mylar") 110 D ..Dacron 110 V ..Vinyl 110 FC ..Fluorocarbons (teflon, Kel-f, FEP-Teflon) 110 S ..Silicones 110 F ..Foam 110 E ..Epoxy 125.1 .Superconductors 126.1 .Conductor structure (nonsuperconductive) 126.2 ..Composite 126.3 ..Corrugated or slotted 126.4 ..Metal coated on insulation 127 ..Corona prevention 128.1 ..Plural strand 128.2 ...Bundle conductors 129 R ...Assemblies of noncircular section 129 B ....Bus bars 129 S ....Segmental, reentrant 130 ...Annular 131 R ....With wall support 131 A .....Insulating core 131 B .....Synthetic, coated 133 R ..Noncircular strand section 133 B ...Bus bars 135 .Accessories 136 ..Anti-abrasion devices 137 R INSULATORS 138 R .Special application 138 A ..Antennas 138 C ..Compositions 138 S ..Spark plugs 138 B ..Pull chains 138 D ..Studs, rods, and joints 138 E ..Slot liners and spacers 138 F ..Terminal covers 138 G ..Component mounting pads, spacers and holders 138 H ..Neon tube type 138 J ..Resistor or heater type 139 .Combined 140 R ..With conductive arcing or stress distributing means 141 R ...Strings or stacks 141 C ....Coated 142 ...Bushing type 143 ....Condenser type 144 ...Arcing or grading devices 140 C ...Coated 140 H ...Hood type 140 S ...Strain type 140 CR ...Corona ring 145 ..With connector 146 .Mid-line spacers 147 ..Cross-over 148 .Multiple insulator assemblies 149 R ..Multiple conductor 149 B ...Bus barss 150 ..Strings and stacks 151 .Through wall or plate 152 R ..Bushing type 153 R ...Opposed wall engaging means 153 A ....Antennas 153 G ....Grommets 152 A ...Antennas 152 E ...Electric space discharge device 152 S ...Spark plugs 152 G ...Grommets or tubes 152 GM ...Glass-to-metal seal 154 .Insulator and conductor embracing holder 155 ..Divided insulator 156 .Divided insulator 157 ..Aligned through aperture 158 R .With insulator-supporting or attaching means 159 ..Insulated nail or staple type 160 ..Strand engaging suspension means 161 R ..Adjustably or movably mounted 161 F ...Fence post insulators 162 ..Double arm 163 R ..Support and/or insulator embracing or clamping 163 F ...Fence post insulators 164 ..Support penetrating 165 ...Penetrating element socketed in insulator 166 R ...Through aperture, penetrating element clamped 166 S ....Stand-off insulators 158 F ..Fence post insulators 167 .With conductor receiving aperture or bushing type 168 .With conductor holding means 169 ..Fitting or terminal type 170 ...Hooks 171 ...Special conductor form 172 ..Insulator embracing 173 ...Tie wires 174 ..Insulator structure 175 ...Self-retaining 176 .With terminal elements 177 ..Plural 178 ...Multi-part, sectional or composite insulator 179 ....Protected rod type 180 ....Pin and opposed overlapping terminal 181 ...With insulated reinforcing or interlocking element 182 ...Cap and pin 183 ...Overlapping 184 ....Interlinking 185 ....Pin and opposed terminal 186 ...Caps 187 ..Ventilating 188 ..Cap type 189 ...Plastic material adhered 190 ...Divided cap 191 ...Clamps or clasps 192 ...Rings or wedges 193 ...Screw or bayonet 194 ..Pin type 195 ...Multi-part insulators 196 ...Plastic material adheredd 197 ...Clamps or clasps 198 ...Rings or wedges 199 ...Expanded 200 ...With thimble in socket 201 ...Through pin 202 ...Screw or bayonet type 203 ....Strand thread 204 ....Sheet material thread 205 ....Soft yielding material pin 206 ....Sockets 207 ..Link or clevis 208 .Link type 209 .Sectional, multi-part, composite, or coated 210 ..Pin socket type 211 .With moisture or dirt removing or shedding 212 .Surface configuration 137 A .Coated 137 B .Compositions * ****************************** * DIGESTS * ****************************** DIG 1 Anti-tracking DIG 2 Ballasts DIG 7 Sodium conductors, connectors, etc. DIG 8 Shrinkable tubes, etc. DIG 9 Pull-out cabinet or drawer with retractable cable DIG 10 Bushings with current transformers DIG 11 Zipper tubes DIG 12 Helical preforms