Manual of U.S. Patent Classification
as of June 30, 2000

Class
102
AMMUNITION AND EXPLOSIVES

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> AMMUNITION AND EXPLOSIVES
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 discharge
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		. . Nonmetallic
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 gas
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 release
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 GUNS
282		PROPELLENT CHEMICAL CHARGE CONTAINER
283		POWDER FORM
284		. Spiral type
285		. Composite type
286		. . Having different burning rates
287