What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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Class Number: 102 Class Title: AMMUNITION AND EXPLOSIVES Subclass Subclass Number Title 301 BLASTING 302 .Terrain clearance 303 .Mat or deflector 304 .Blasting plug including an opening for a fuse, fuse ignitor, or explosive 305 .Detonation wave modifying 306 ..Shaped charge or charge with detonation wave cavity modifier 307 ...Linear or curvilinear cavity 308 ...Tandem charge 309 ...Having a barrier 310 ...Plural charges 311 .Patterned blasting 312 ..Borehole arrangement 313 .Borehole loading 314 .Contained blasting charge 315 ..Having or receiving separated explosive constituents 316 ..With flame or heat suppressant 317 ..Similar contained charges joined end to end 318 ..Booster or charge with booster detonator 319 ..With well-anchoring means, wall-contacting guides, or buffers 320 ..Having plural charges 321 ..With support means 322 ..With primer or ignitor 323 ..Having a rupturable or expandable casing 324 ..Having a flexible tube or bag container 325 .Contained pressurized fluid blasting charge 326 ..Fluid generated within container 327 ..Fluid heated within container 328 ..Contained fluid exit seal controlled by fluid pressure 329 ...Valve-type seal 330 ....Automatically operated 331 .Blasting charge case 332 .Blasting charge 333 .Plug 334 SMOKE GENERATING 335 PYROTECHNICS 336 .Flare 337 ..With parachute 338 ...Multiple flares 339 ...Plural or vane-type parachutes or means to restrain complete initial parachute opening 340 ...With means to eject parachute or flare from casing 341 ..Marine type 342 ..With means to eject flare from casing 343 ..With support means 344 ...Spike form 345 ..With plural, successively ignited flares 346 .Gun-type cartridge 347 .Rocket 348 ..With vane, wings, parachute, or balloon 349 ..With support means 350 ..With means to rotate by gas dischargee 351 ..With means to eject object from casing 352 ..Including plural, successively ignited charges 353 .Toy torpedoe 354 .With parachute or balloon 355 .Simulation 356 .Combined 357 .With means to eject an object from a casing 358 .With support means 359 ..Wheel, rotor, or whirler 360 .With plural, successively ignited charges 361 .Firecracker 362 HAVING GROUND PROPULSION MEANS 363 FUEL AIR EXPLOSIVE 364 INCENDIARY 365 .Liquid or jelly 366 OIL DISTRIBUTING 367 GAS OR MIST DISPERSING 368 .Grenade 369 .Drop bomb 370 .Cartridge or projectile 371 BOMB LANCE 372 HAVING RADIALLY DIRECTED PROPELLING HOLES 373 .Including external propellent charge 374 HAVING REACTION MOTOR 375 .Pneumatically self-propelled type 376 .With cartridge means 377 .Having separation means 378 ..Explosive 379 .Having warhead fuse or arming means 380 .Having propellent charge ignitor means 381 .Having pressurization or variable control means for the propellant 382 DROP BOMBS 383 .With laterally directed barrels 384 .With direction controlling means 385 .Fin stabilizer only 386 .With drop-retarding means 387 ..Parachute 388 ..Vane or rotor 389 .Fragmentation 390 .Marine type 391 ..Depth regulation 392 ...Hydrostatic 393 .Cluster type 394 .Rebounding or multiple bursting charges 395 .Practice 396 .Igniting means 397 ..With target contact anticipator 398 NONRECOCHETING PROJECTILE 399 MARINE-TYPE PROJECTILE 400 WITH EXTENDABLE ARMS 401 MINES 402 .Counter measure 403 ..By explosion 404 .Pop-up type 405 .Aerial type 406 .Marine type 407 ..Practice (e.g., drill)) 408 ..Flooder means 409 ..Field or group 410 ...With manipulating means 411 ..Laying, anchoring, or manipulating 412 ...Depth regulation 413 ....Anchor cable length 414 ....Hydrostatic pressure 415 ...Antisweep anchorage 416 ..Igniting means 417 ...Magnetic 418 ...Wave responsive 419 ...Electrical 420 ....Including arming means 421 ....Contact type 422 ...Contact type 423 ....Extending firing means 424 .Igniting means 425 ..With position sensing means 426 ..Automatic deactivation or self-destruction 427 ..Electrical, magnetic, wave, or radiant energy actuated 428 ..Pressure actuated 429 ...Spring biased 430 CARTRIDGES 431 .Combustilbe, destructible, or caseless 432 ..Expendable cartridge 433 ..Telescoping powder charge 434 .Telescoping powder charge 435 .Wear reducing additive for barrel 436 .Noncircular projectile or cartridge 437 .Recoilless 438 .Multiple projectiles 439 .Projectile structure 440 .Having liquid/gas propellent means 441 .With projectile and explosive cap 442 .With bore cleaning means 443 .Having divided propelling charge 444 .Practice projectile type 445 ..Mortar 446 ..Cartridge adapter 447 ..Reduced charge 448 .Shot 449 ..Shot container 450 ...Collapsible wad 451 ....Integral wad 452 ...Having integral closure means 453 ...Having integral wad 454 ...Including divided shot charge 455 ...Including filler means in the shot area 456 ...With additional means to keep container closed 457 ..With control of shot spread 458 ..With tracer means 459 ..Including coated shot 460 ..Having shot of different size or shape 461 ..Collapsible wad 462 ..Closure means 463 ...Integral 464 .Case 465 ..Nonmetallicc 466 ...Plastic cases 467 ....With metal base or reinforcement 468 ..Iron case 469 ..Breech end structure 470 ...With primer means 471 ....Rim fired 472 ....Electric 473 SHELLS 474 .Continuous rod warhead 475 .Focused or directed detonation 476 ..Shaped charge 477 .With means to form bursting charge after projection 478 .Having divided bursting charge 479 .With bursting charge cushioning means 480 .With laterally directed barrels 481 .With safety means 482 .Grenade 483 ..With gun or other projector engaging or cooperating means 484 ...With bullet passage through grenade 485 ...With bullet stopping means 486 ..With throwing handle, handgrip, or strand 487 ..With igniting means 488 ...Impact-operated 489 .With secondary shells 490 .With range increasing means 491 .Shrapnel 492 ..Focused fragmentation 493 ..Structurally weakened casing 494 ..Multiple fragments 495 ...Casing 496 ...Embedded 497 ....With explosive 498 .Practice 499 .With igniting means 500 ..Axially movable impacting means 501 PROJECTILES 502 .Nonlethal or deterrent 503 .Tubular 504 .Line carrying or filamentary material distributing 505 ..Chaff dispensing 506 .Fragmenting 507 .Dumdum or mushrooming 508 ..With cavity 509 ...Hollow 510 ....With expanding member 511 .Lubricating 512 .Narcotizing 513 .Target marking 514 .Having jacket 515 ..Nonmetallic 516 ..Composite 517 .Composite 518 ..Hardened core within a chamber 519 ..With separate hardened nose 520 ..Sabot or carrier 521 ...Subcaliber 522 ....Base enclosed 523 .....With projectile exposed to propellent gass 524 ..Rifling or driving means (e.g., band) 525 ...Wedge expanded 526 ...Including annular member 527 ....Nonmetallic 528 ...Band protector 529 .Practice or cleaning 530 JACKETED OR CARTRIDGE GAS GENERATOR 531 .For gas-powered tools or means 532 WADS 200 IGNITING DEVICES AND SYSTEMS 201 .Laser or light initiated 202 .Propellant ignitors 202.1 .Accidental fuse ignition prevention means 202.2 ..Having electromagnetic field effects diminishing or elimination means 202.3 ..Fuse device resistive shunt 202.4 ...Voltage responsive variable resistance shunt (e.g., semiconductor shunts) 202.5 .Electrical primer or ignitor 202.6 ..Having an additional ignitor or water destructible fuse 202.7 ..Having an exploding bridgewire 202.8 ..Having a spark gap or conductive composition or charge 202.9 ..With electric terminals 202.11 ..Having an electric matchhead 202.12 ..Assemblies (e.g., packaging) 202.13 ..Having a powder train time delay 202.14 ..With housing 204 .Percussion primers or ignitors 205 .Heat, friction, or chemical primers or ignitors 206 .Ignition or detonation circuit 207 ..Including activated generator 208 ...Turbine 209 ...Magnetic 210 ...Piezoelectric crystal 211 ..Proximity fuze 212 ...Magnetic 213 ...Light or infrared 214 ...Radio wave 215 ..Including logic means 216 ..Including impact or inertia switch 217 ..Plural sequentially fired ignitors or detonators 218 ..Electronic switch discharges capacitor 219 ...Ionized gas, i.e., glow tube or thyratron 220 ...Silicon controlled rectifier 221 .Arming devices 222 ..Blocking or interrupting type 223 ...Fluid pressure operated 224 ....Fluidic device 225 ....Rotating vane 226 .....Rotor or slide release 227 .....Impacting device release 228 ....With or including a timing device 229 ....Rotor or slide 230 ....Impacting device release 231 ...Centrifugal and setback operated 232 ....With or including a timing device 233 .....With setback latch 234 ....Impacting device releasee 235 ....Rotor or slide with setback release 236 .....Firing pin is latch 237 ...Centrifugal operated 238 ....With or including a timing device 239 ....Latch for impacting device 240 .....Spiral band 241 .....Pivoted weight 242 .....Spring biased piston 243 .....Expanding weight 244 ....Rotor or slide 245 .....Centrifugally released latch 246 .....Deceleration released latch 247 ...Inertia operated 248 ....With or including a timing device 249 .....With setback latch 250 .....Fluent material 251 ....Rotor or slide with setback release 252 ....Impacting device latch 253 .....Ball and detent 254 ...Slide or rotor 255 ....Timing device operated 256 ....Spring operated 257 ...Timer operated impacting device latch 258 ...Externally released latch 259 ....Bore riding pin 260 ....Manually released 261 .....To actuate impacting means 262 ..Switch 263 ...Vane or fluid pressure operated 264 ...Timing device operated 265 .Multiple mode fuzes 266 ..Impact and time delay 267 ...Spin decay 268 ...Mechanical time delay 269 ...Power train delay 270 ..Mode selecting means 271 ...Delay or impact 272 .Impacting devices 273 ..Graze or multiangle 274 ..Spring driven with latch 275 ..With frangible restraint 275.1 .Fuse cord (e.g., blasting cord) 275.2 ..With one-way connector or arrangement 275.3 ..With combustible time-delay cord connection means 275.4 ..To or from connector having booster charge 275.5 ..With explosive charge 275.6 ..With igniting means 275.7 ..With cord holding device to couple cords 275.8 ..Detonator cord 275.9 .Fuse 275.11 .Initiating devices 275.12 .Holders for fuse or fuse cord to blasting cartridge, igniting device, or detonator 276 .Time controlled 277 ..With fluent material 277.1 ..Munition powder train 277.2 ...Train length selection means 281 EXPLOSIVE CAPS FOR TOY GUNSS 282 PROPELLENT CHEMICAL CHARGE CONTAINER 283 POWDER FORM 284 .Spiral type 285 .Composite type 286 ..Having different burning rates 287 ...Rocket motor type 288 ..Powder grain shape formed of fixed shape segments 289 .Having embedded reinforcing or burning control means 290 .Having burning inhibiting means 291 .Rocket propellent grain 292 .Powder grain 293 MISCELLANEOUS * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 700 COMBUSTILBE CARTRIDGE 701 CHARGE WAVE FORMING 702 COMPRESSION IGNITION 703 FLECHETTE 704 COOLANTS 705 SEPARATED EXPLOSIVE CONSTITUENTS