U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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Classification Index
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(definitions have been obtained from the
Patents ASSIST CD-ROM which
is produced by the U.S. Patent and Trademark Office
Electronic Products Branch)
Class 102
AMMUNITION AND EXPLOSIVES
Class Definition:
This is the residual class for ammunition propelled by
explosives and explosives methods or means which includes:
Missile, blasting means, payload, pyrotechnic, gun ammunition
and/or miscellaneous explosive means.
Gun barrel cleaning means which are propelled through the
barrel by explosive or fluid under high pressure.
Fluid under high pressure, other then chemical reaction,
which escape very rapidly.
Material which burns or combusts which is intended to be
projected, dropped, thrown, or propelled is proper for the
class. (1) By releasing a combustion material to the
atmosphere, e.g., gas, incendiary shell, grenade, etc. (2) By
generating heat to damage an object, e.g., thermite means.
Subcombinations peculiar to the class which are not
classified in other classes, e.g., cartridge case, primer
ignitor, fuse, sabot, rifling band, wad, propellant form,
etc.
Dummy, practice, drill, training ammunition, etc., is
classified with the conventional ammunition.
Patents issued prior to 1950 have not in all instance been
classified by their claimed disclosure but by their total
disclosure so that placement of these older patents does not
necessarily indicate lines of classification.
The Search Notes below also contain classification lines.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
29, Metal Working, subclass 421.2 for shaping by direct
application of explosive pressure.
42, Firearms, for guns and gun ammunition combinations.
72, Metal Deforming, subclass 53 for shaping metal by
shot-blasting; and subclass 56 for shaping metal by an
explosive.
86, Ammunition and Explosive-Charge Making, for the processes
of making explosive charges or ammunition for firearms,
ordnance, pyrotechnic, blasting charges, etc.
89, Ordnance, for guns of the class type and subclass 1.14
for explosive-operated apparatus, e.g, explosive and door
hinge, tool explosively actuated, band release, expansion of
tube, cable cutter, etc.
109, Safe, Bank Protection, or a Related Device, subclasses
36+ for safe, bank protection and related devices combined
with explsive means.
114, Ships, subclass 20.1 for marine torpedoes having
self-propulsion; and subclass 221 for chain cutting.
116, Signals and Indicators, subclass 11, 15, 17, 23, 78, 83,
87+, and 105 for detonating alarms adapted to be fired by
intruders or by the occurrence of some event.
122, Liquid Heaters and Vaporizers, subclass 24 for
explosive-type fluid boilers.
123, Internal-Combustion Engines, subclass 24 and 183 for
internal-combustion engines and engines starters employing
gun-powder charges.
149, Explosive and Thermic Compositions or Changes, for
explosive and thermic composition.
166, Wells, subclass 299 for well processes using
explosives; subclass 55.1 for well-tubing perforators
operated by explosives combined with a disparate feature and
perforator which do not act inherently to penetrate the
formation; and subclass 63 for well apparatus with an
explosive means.
169, Fire Extinguishers, subclass 28 and 58 for explosive
fire extinguisher.
175, Boring or Penetrating the Earth, subclass 1 and 2+ for
process or apparatus for boring a hole into the earth
including a below-ground explosion or for subject matter
relating to a gun or shape charge device for penetrating an
earth formation or perforating a casing or other wall member
in an inaccessible hole in the earth, see the class
definition of Class 175 for the line between classes (102)
and 175.
181, Acoustics, subclass 116 for geophysical or subsurface
exploration using an explosive.
206, Special Receptacle or Package, subclass 524.1 for
ammunition receptacles.
224, Package and Article Carriers, subclasses 191+ for
cartridge belts.
228, Metal Fusion Bonding, subclass 2.5 for explosive
welding means; and subclass 107 for the process of using
explosive energy for bonding.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 2.1
and 14.1 for rain producing methods and apparatus.
244, Aeronautic, subclass 3.1 for trajectory control or
stabilizing means for propelled or thrown explosive weapons
or for missiles; and subclass 14 for air-sustained,
self-propelled aerial torpedoes; and subclass 117 for heat
shields.
246, Railway Switches and Signals, subclasses 210+ and 487
for railway torpedoes.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclass 3 for processes of shaping or treating
explosive or propellent articles.
280, Land Vehicles, subclasses 728+ for air bag type
passenger safety guard attachments.
299, Mining or In Situ Disintegration of Hard Material,
subclass 13 for process of disintegrating by explosives; and
subclass 20 for expansible breaking-down devices.
361, Electricity: Electrical Systems and Devices, subclasses
627+ for distribution or control panel boards with fuses.
362, Illumination, subclass 34 for chemilluminescent
lighting.
367, Communications, Electrical: Acoustic Wave Systems and
Devices, subclass 145 for means to cause underwater shock
wave by an explosion.
431, Combustion, subclasses 357+ for a flashing charge type
illuminating burner; subclasses 288+ for a candle or candle
apparatus; and appropriate subclass for a residual process or
structure specialized to combustion or combustion starting
and not specifically provided for in Class 110 or in some
other class.
GLOSSARY:
EXPLOSIVE
The term is used to include a detonating, deflagrating, or
thermic composition of the type defined in the class
definition of Class 149, Explosive and Thermic Compositions
or Charges.
MISSILE
Any object thrown, dropped, projected, or propelled for the
purpose of making it damage a target.
PAYLOAD
A container for holding explosive, research, reconnaissance,
or counter measure equipment, animal life, parachute, etc.,
which is propelled into the air by an explosive means.
SUBCLASSES
Subclass:
200
IGNITING DEVICES AND SYSTEMS:
This subclass is indented under the class definition. Subject
matter for initiating the combustion or detonation of
explosive or thermic compositions or charges.
(1) Note. The explosive or thermic compositions or charges
of this subclass type are the same as those defined in the
class definition of Class 149, Explosive and Thermic
Compositions or Charges.
(2) Note. Illustrative of the devices and systems of this
subclass type are missile and ordnance fuzes, both mechanical
and electrical, and priming and igniting devices and systems
not specifically provided for elsewhere in this class.
(3) Note. Systems, as used in this subclass and the
subclasses indented hereunder, refer to a plurality of
electrical, mechanical and/or explosive elements all acting
in a pattern or sequence to cause detonation or combustion of
a main explosive such as a war head or propellant. Typical of
such systems is the type commonly referred to as a firing
train.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7 for fuses and ignitors, per se, for marine type drop
bombs, specially designed for operation in water, e.g., those
operated by water flow or by hydrostatic pressure.
7.4 for drop bombs having a target contact anticipator for
controlling or operating an ignitor.
subclasses 16+ for igniting devices for marine-type mines.
19.2 for igniting devices for mines other than the marine
type involving the use of electricity, magnetic wave, or
radiant energy.
subclasses 27+ for igniting devices for blasting cartridges
and devices.
subclasses 45+ for primers for gun cartridges.
49.7 for ignitors for missile rocket motors.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclasses 143+ for
ignition systems in internal-combustion engines.
149, Explosive and Thermic Compositions or Charges, for
explosive compositions, per se, which may be used for
igniting other explosives.
361, Electricity: Electrical Systems and Devices, subclasses
247+ for circuits, per se, for igniting explosives.
431, Combustion, appropriate subclasses for igniting devices
used in combustion.
Subclass:
201
Laser or light initiated:
This subclass is indented under subclass 200. Subject matter
in which the explosive is ignited by visible radiant energy.
(1) Note. Not included herein are devices which detect light
(i.e., photocell circuits) and then cause ignition of an
explosive.
Subclass:
202
Propellant ignitors:
This subclass is indented under subclass 200. Subject matter
for initiating the combustion of a charge for driving
missiles in which the driving charge travels with the
missile.
(1) Note. For devices such as impact or friction primers for
igniting propelling charges of the type that do not travel
with the missile, e.g., for propelling gun cartridges, search
this class, subclass 204 or 205.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49.7 for ignitors in combination with a missile rocket
motor.
SEE OR SEARCH CLASS:
60, Power Plants, subclass 39.821 for ignition devices in
combination with power plants; and subclass 256 for ignitors
in combination with rocket motors.
89, Ordnance, subclass 1.813 for ignition devices for
rockets in launching devices.
Subclass:
202.1
Accidental fuse ignition prevention means:
This subclass is indented under subclass 200. Subject matter
which includes a device, to set off an explosive or thermic
composition or charge, which includes means to prevent an
unwanted energization of the device.
(1) Note. Electrical and nonelectrical primers and igniters
are included in the term "device".
Subclass:
202.11
Having an electric matchhead:
This subclass is indented under subclass 202.5. Subject
matter wherein the composition or charge burns to produce a
flame when ignited by the electrical igniting device and the
composition or charge is integral with the electrical
igniting device.
(1) Note. There may or may not be a housing to encompass the
matchhead.
SEE OR SEARCH CLASS:
44, Fuel and Related Compositions, subclasses 507+ or
matches.
Subclass:
202.12
Assemblies (e.g., packaging):
This subclass is indented under subclass 202.5. Subject
matter wherein the recited elements form an electric blasting
cap having leads to supply power to the igniting or
detonating device and there is a support member to (a)
support the blasting cap within or on the support member or
(b) permit the coiling of the lead wires about, within, or on
the support member to form a compact unit when not in use or
(c) there is an electric blasting cap with leads long enough
to coil the lead wires into a wire bundle with the cap
inserted within the bundle, in either case, to form a
packaged item before use.
(1) Note. The support member may also be designed to hold a
explosive charge as a stick of dynamite as well as the
blasting cap.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, subclasses 701+ for a
special receptacle or package for an electrical component.
Subclass:
202.13
Having a powder train time delay:
This subclass is indented under subclass 202.5. Subject
matter which additionally includes in a common unit a
combustible chemical composition which is ignited or
detonated by the explosive or thermic material when it is
ignited or detonated to cause a delay in the time a further
explosive or thermic composition will be ignited in the same
unit as a result of the detonated or ignited composition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275.3 for a fuse cord with a connector having a combustible
time delay.
275.9 for nonelectric fuses having a combustible time
delay.
277.1 for munition type combustible time delays.
Subclass:
202.14
With housing:
This subclass is indented under subclass 202.5. Subject
matter wherein the explosive or thermic composition or charge
and the electrical igniting or detonating device are within a
common container.
(1) Note. Blasting caps having an electric bridgewire
igniting device and an explosive charge in a common container
are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.7 for a detonator having an exploding bridgewire and an
explosive or thermic charge within a container.
202.8 for a spark gap and an explosive or thermic charge or
a conductive explosive ignitor or detonator within a
container.
202.11 for an electric matchhead and an explosive or thermic
charge within a container.
202.13 for an electric igniting or detonating device, a
combustible time delay, and an explosive or thermic charge
within a container.
322 for contained blasting charges with a primer or ignitor
having an explosive or thermic charge with an electric
detonating or igniting device in a common container.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
264+ for igniting systems for explosive devices having
incandescent ignition.
Subclass:
202.2
Having electromagnetic field effects diminishing or
elimination means:
This subclass is indented under subclass 202.1. Subject
matter wherein the device has lead wires connected thereto
and means forming part of the device to attenuate or
eliminate (a) the effects of electromagnetic radiation on all
or part of the device, (b) the passage of unwanted
frequencies of alternating currents or voltages through the
lead wires or the device, (c) the passage of unwanted current
or voltage through the lead wires or the device.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclasses 32+
for anti-inductive structures.
439, Electrical Connectors, subclasses 607+ for quick make
and break connectors having a screen to reduce or eliminate
the self-inductance of a connector or external magnetic
fields on a connector.
Subclass:
202.3
Fuse device resistive shunt:
This subclass is indented under subclass 202.1. Subject
matter wherein the device includes bare lead wires and a
resistive shunt connected between the wires or between a wire
and a casing of the device so that the bulk of the current
caused by accidental abnormal voltages is diverted through
the shunt to prevent the ignition of the device.
(1) Note. The shunt may or may not be removed when the
device is energized.
(2) Note. The shunt, per se, is here.
(3) Note. The term "lead wires" include terminals.
(4) Note. Here the resistance of the shunt is fixed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.5 for resistances which change due to high voltage
breakdown.
202.1 for devices to short circuit the bare leads of the
device.
Subclass:
202.4
Voltage responsive variable resistance shunt (e.g.,
semiconductor shunts):
This subclass is indented under subclass 202.3. Subject
matter wherein the resistive shunt has a high resistance to
normal operating voltage and a lower resistance to higher
than normal voltage present between the wires or a wire and
the casing to pass most of the currents caused by the higher
voltage through the shunt.
(1) Note. The shunt may be a gas which conducts when the
higher voltage ionizes the gas or a semiconductive material
that breaks down and passes current.
(2) Note. Here are spark gaps.
SEE OR SEARCH CLASS:
252, Compositions, subclasses 63+ for dielectric or
electrically insulating compositions.
313, Electric Lamp and Discharge Devices, subclass 325 for
miscellaneous discharge devices.
Subclass:
202.5
Electric primer or ignitor:
This subclass is indented under subclass 200. Subject matter
which includes an explosive or thermic composition or charge
and an electrical igniting or detonating device to cause the
composition or charge to attain its combustion or detonation
point.
(1) Note. In this group of subclasses are electrically
energized ignitors or detonators not contained in a
container. If there are components in addition to the
detonating or igniting device forming an electric circuit
within the container common unit and wires or terminals
leading outside the unit to some continuation of the circuit,
the claim will be classified within this group of subclasses.
If electrical components are claimed in addition to the lead
wires outside of common unit, the claim will be classified
under subclasses 206+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.1 for accidental fuse ignition prevention means.
subclasses 206+ for electrical ignition or detonation
circuits.
275.9 for in name only electrical primers claiming a housing
with an explosive therein.
subclasses 305+ for detonation wave modifying.
subclasses 311+ for patterned blasting.
313 for borehole loading.
322 for a contained blasting charge with an electric primer
or ignitor.
332 for a blasting charge with an electrical primer or
ignitor.
380 for a reaction motor having a propellent charge
ignitor.
subclasses 419+ for electrically fired mines.
472 for electric primer means with breech end cartridge case
structure.
SEE OR SEARCH CLASS:
86, Ammunition and Explosive-Charge Making, subclass 1 for
methods of making fuses.
181, Acoustics, subclasses 116+ for seismic wave generation
explosive devices.
219, Electric Heating, subclasses 260+ for resistive
ignitors.
361, Electricity: Electrical Systems and Devices, subclasses
248+ for igniting systems for explosives.
367, Communications, Electrical: Acoustic Wave System and
Devices, subclass 145 for underwater explosive type
transmitter signal transducers.
431, Combustion, subclasses 258+ for a burner having an
electrical heater or igniter.
Subclass:
202.6
Having an additional ignitor or water destructible fuse:
This subclass is indented under subclass 202.5. Subject
matter wherein there is (a) a second igniting or detonating
device to cause the composition or charge to burn or
detonate, or (b) means, including a housing for enclosing the
composition or charge and the igniting or detonating device,
affected by water to cause the igniting or the detonating
device from energizing or the composition or charge from
igniting or detonating.
(1) Note. The term "burn" includes deflagrating charges or
compositions.
(2) Note. Here the composition or charge and the two means
to ignite or detonate the composition or charge are in a
common housing.
(3) Note. Munition and blasting fuses are in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 265+ for multiple mode fuses.
426 for automatic deactivation or self-destructing mines.
Subclass:
202.7
Having an exploding bridgewire:
This subclass is indented under subclass 202.5. Subject
matter wherein the electrical device is an electrically
conductive wire or semiconductor which vaporizes when
electrically energized and produces a shock wave of high
pressure or high temperature which causes the composition or
charge to detonate, deflagrate or burn.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 61.08
for destructible circuit makers or breakers.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 227+ for electrothermal fusible
elements having a fuse link carrier or holder; and subclasses
290+ for electrothermal fusible links or element structure or
material.
Subclass:
202.8
Having a spark gap or conductive composition or charge:
This subclass is indented under subclass 202.5. Subject
matter wherein the device produces an electric arc to ignite
or detonate the composition or charge or the composition or
charge is electrically conductive so that in an electric
energized circuit the charge or composition is
self-detonating or igniting.
SEE OR SEARCH CLASS:
149, Explosive and Thermic Compositions or Charges.
219, Electric Heating, subclasses 383+ for nonmetal arc
heating devices; and subclasses 552+ for heating element
structure.
252, Compositions, subclasses 500+ for electrically
conductive compositions.
313, Electric Lamp and Discharge Devices, subclasses 306+
for discharge devices having three or more electrodes;
subclass 309 for discharge devices having a multi-pointed or
serrated edge electrode; and subclass 325 for miscellaneous
discharge devices.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, generally.
315, Electric Lamp and Discharge Devices: Systems, subclasses
326+ for discharge device loads.
431, Combustion, subclasses 264+ for a burner with a spark
electrode.
Subclass:
202.9
With electric terminals:
This subclass is indented under subclass 202.5. Subject
matter wherein the electric igniting or detonating device has
an electric power connection of the quick make or break type
to connect the device with an appropriate source of power.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.14 for an igniting or primer device with a housing
having wires to connect the device with an energizing
electrical source.
SEE OR SEARCH CLASS:
439, Electrical Connectors, subclasses 775+ for a metallic
connector having a movable or resilient securing part.
Subclass:
204
Percussion primers or ignitors:
This subclass is indented under subclass 200. Subject matter
comprising means to ignite an explosive by mechanical force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 for percussive actuated explosives to initiate blasting
explosives.
45 for percussive actuated explosives to initiate gun
cartridges.
Subclass:
205
Heat, friction, or chemical primers or ignitors:
This subclass is indented under subclass 200. Subject matter
comprising heating, friction, or chemical means to ignite an
explosive.
Subclass:
206
Ignition or detonation circuit:
This subclass is indented under subclass 200. Subject matter
comprising an electrical circuit, or components of an
electrical circuit to supply electrical energy to an igniting
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11 for circuits for selectively firing units of mines in
fields or groups.
16 for marine mine firing circuits.
19.2 for nonmarine mine firing circuits.
subclasses 20+ for circuits for firing well explosives.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
247+ for similar circuits.
Subclass:
207
Including activated generator:
This subclass is indented under subclass 206. Subject matter
including means to selectively convert nonelectrical energy
into electrical energy.
(1) Note. Subject matter for supplying electrical energy
which is excluded from this subclass includes, for example,
storage batteries and capacitors merely switched into a
circuit. Subject matter included in this subclass includes,
for example, tribo-electric generators and thermal and
deferred-action batteries.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, appropriate
subclasses for electrical generators, per se.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, subclasses 110+ for deferred-action
batteries, per se.
Subclass:
208
Turbine:
This subclass is indented under subclass 207. Subject matter
wherein the electrical generator comprises a rotating member
driven by fluid flow.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 10+
for dynamoelectric generators, per se.
Subclass:
209
Magnetic:
This subclass is indented under subclass 207. Subject matter
wherein electricity is generated by relative movement between
a coil and magnetic material.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 10+
for dynamoelectric generators, per se.
Subclass:
210
Piezoelectric crystal:
This subclass is indented under subclass 207. Subject matter
wherein the electrical generator comprises a piezoelectric
crystal.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 311
for piezoelectric generators, per se.
Subclass:
211
Proximity fuze:
This subclass is indented under subclass 206. Subject matter
which comprises a means for sensing the distance or proximity
of a target, such sensing means causing ignition of an
explosive.
Subclass:
212
Magnetic:
This subclass is indented under subclass 211. Subject matter
wherein the sensing means is a device for sensing the
magnetic properties of a target.
SEE OR SEARCH THIS CLASS, SUBCLASS:
18 for magnetic sensing devices in marine mines.
19.2 for magnetic sensing devices in non-marine mines.
Subclass:
213
Light or infrared:
This subclass is indented under subclass 211. Subject matter
wherein the sensing means includes an optical or infrared
detecting means.
SEE OR SEARCH CLASS:
356, Optics: Measuring and Testing, subclasses 3+ for
optical range-finding devices.
Subclass:
214
Radio wave:
This subclass is indented under subclass 211. Subject matter
wherein target proximity is determined by the use of radio
waves.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and Devices
(e.g., Radar Radio Navigation), subclass 68 and 166 for
similar proximity fuzes and appropriate subclasses for
distance measuring devices.
Subclass:
215
Including logic means:
This subclass is indented under subclass 206. Subject matter
including a computer or logic device (e.g., AND gate, OR
gate, etc.).
Subclass:
216
Including impact or inertia switch:
This subclass is indented under subclass 206. Subject matter
including a switch activated by inertia or target impact.
Subclass:
217
Plural sequentially fired ignitors or detonators:
This subclass is indented under subclass 206. Subject matter
including a plurality of igniting devices activated one after
another.
Subclass:
218
Electronic switch discharges capacitor:
This subclass is indented under subclass 206. Subject matter
in which a switching means discharges a capacitor through the
igniting device.
Subclass:
219
Ionized gas, i.e., glow tube or thyratron:
This subclass is indented under subclass 218. Subject matter
in which the switching means includes a gas to be ionized,
such as the gas in a glow tube or thyratron.
Subclass:
220
Silicon controlled rectifier:
This subclass is indented under subclass 218. Subject matter
in which the switching means includes a silicon controlled
rectifier.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous circuits which employ silicon controlled
rectifiers.
Subclass:
221
Arming devices:
This subclass is indented under subclass 200. Subject matter
which includes means selectively rendering the igniting
device or system capable of igniting an explosive.
(1) Note. The means of this subclass type, for example,
renders an igniting device or system incapable of igniting an
explosive until the means is either activated or withdrawn.
(2) Note. Restrained impacting devices which are released
upon striking a target or similar object are not considered
arming devices of this subclass type and are classifiable in
subclass 272 below.
(3) Note. Arming devices combined with art provided for
elsewhere in this class are classified with such art.
Subclass:
222
Blocking or interrupting type:
This subclass is indented under subclass 221. Subject matter
wherein ignition requires the cooperation of at least two
elements, and wherein the arming means includes movable means
which selectively either prevents or permits cooperation of
the two elements.
Subclass:
223
Fluid pressure operated:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means is activated or
rendered operative by fluid pressure.
Subclass:
224
Fluidic device:
This subclass is indented under subclass 223. Subject matter
including a fluidic device, i.e., a fluid amplifier or fluid
oscillator.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclasses 803+ for fluidic devices in
general.
Subclass:
225
Rotating vane:
This subclass is indented under subclass 223. Subject matter
including a member rotated about an axis by the fluid
pressure to move or permit movement of the blocking or
interrupting means.
SEE OR SEARCH CLASS:
416, Fluid Reaction Surfaces (i.e., Impellers), for vane
structures per se.
Subclass:
226
Rotor or slide release:
This subclass is indented under subclass 225. Subject matter
in which the blocking or interrupting means is slidable or
rotatable.
(1) Note. Subject matter of this subclass type includes, for
example, an element either carrying an explosive or having an
aperture initially out of alignment in a firing train which
subsequently moves the explosive or aperture into alignment
with the firing train.
Subclass:
227
Impacting device release:
This subclass is indented under subclass 225. Subject matter
in which the rotating vane releases means for creating an
impulse of mechanical force, e.g., firing pin, inertial
weight, etc.
Subclass:
228
With or including a timing device:
This subclass is indented under subclass 223. Subject matter
including means activated or operated by the fluid pressure
to delay the functioning of some element of the igniting
device or system.
(1) Note. The timing device of this subclass type, although
included in the igniting device or system, need not
necessarily be included in the blocking or interrupting
means.
Subclass:
229
Rotor or slide:
This subclass is indented under subclass 223. Subject matter
in which the blocking or interrupting means is slidable or
rotatable.
Subclass:
230
Impacting device release:
This subclass is indented under subclass 223. Subject matter
in which a means for creating an impulse of mechanical force
is released by the fluid pressure.
Subclass:
231
Centrifugal and setback operated:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means arms the igniting
device or system by a combination of centrifugal force and an
inertial force due to linear acceleration.
(1) Note. The term "setback" as used in the art generally
refers to accelerating force acting on an inertial mass
caused by the launching of a missile.
(2) Note. The acceleration of this subclass type always
increases velocity. Acceleration of the type which decreases
velocity is referred to as deceleration (see for example
subclass 246 below) and does not form a basis for
classification in this subclass.
Subclass:
232
With or including a timing device:
This subclass is indented under subclass 231. Subject matter
including means to delay the functioning of some element in
the igniting device or system.
(1) Note. The timing device of this subclass type, although
included in the igniting device or system, need not
necessarily be included in the blocking or interrupting
means.
Subclass:
233
With setback latch:
This subclass is indented under subclass 232. Subject matter
having means to hold the timing means inoperative until
released by setback force.
Subclass:
234
Impacting device release:
This subclass is indented under subclass 231. Subject matter
in which a means for creating an impulse of mechanical force
is caused to be released by the centrifugal and/or setback
force.
Subclass:
235
Rotor or slide with setback latch:
This subclass is indented under subclass 231. Subject matter
in which the blocking or interrupting means is rotatable or
slidable and which has means to prevent the blocking or
interrupting means from rotating or sliding until released by
a setback force.
Subclass:
236
Firing pin is latch:
This subclass is indented under subclass 235. Subject matter
in which the rotor or slide setback release is also an
impacting device which imparts an impulse of mechanical force
to an explosive charge.
Subclass:
237
Centrifugal operated:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means arms the igniting
device or system by centrifugal force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
231 for blocking and interrupting-type arming devices
operated by both centrifugal and setback forces.
Subclass:
238
With or including a timing device:
This subclass is indented under subclass 237. Subject matter
including means to delay the functioning of some element of
the igniting device or system.
(1) Note. The timing device of this subclass type, although
included in the igniting device or system, need not
necessarily be included in the blocking or interrupting
means.
Subclass:
239
Latch for impacting device:
This subclass is indented under subclass 237. Subject matter
which includes means for holding inoperative a means for
creating an impulse of mechanical force until released by
centrifugal force.
Subclass:
240
Spiral band:
This subclass is indented under subclass 239. Subject matter
in which the latching device is a spirally wrapped flexible
band.
Subclass:
241
Pivoted weight:
This subclass is indented under subclass 239. Subject matter
in which the latch includes a weight or inertia responsive
member attached at and pivotable about a point and acted on
by the centrifugal force to release the impacting device.
Subclass:
242
Spring biased piston:
This subclass is indented under subclass 239. Subject matter
in which the latch includes a plurality of members movable by
centrifugal force and each acted on by a separate resilient
means tending to counteract the centrifugal force.
Subclass:
243
Expanding weight:
This subclass is indented under subclass 239. Subject matter
in which the latch includes weighted or inertia responsive
members which move outwardly relative to one another under
the influence of centrifugal force and which are
interconnected circumferentially by resilient means which
tends to counteract the centrifugal force.
Subclass:
244
Rotor or slide:
This subclass is indented under subclass 237. Subject matter
in which the blocking or interrupting means includes a
rotatable or slidable means actuated or operated by
centrifugal force.
Subclass:
245
Centrifugally released latch:
This subclass is indented under subclass 244. Subject matter
in which the rotor or slide is restrained by a means which
releases the rotor or slide in response to centrifugal
force.
Subclass:
246
Deceleration released latch:
This subclass is indented under subclass 244. Subject matter
in which the rotor or slide is released in response to a
decelerating force.
Subclass:
247
Inertia operated:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means is activated or
operated by the reaction of a mass to an accelerating or
decelerating force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
231 for blocking and interrupting-type arming means operated
by both centrifugal and setback forces.
Subclass:
248
With or including a timing device:
This subclass is indented under subclass 247. Subject matter
including means to delay the functioning of some element of
the igniting device or system.
(1) Note. The timing device of this subclass type, although
included in the igniting device or system, need not
necessarily be included in the blocking or interrupting
means.
Subclass:
249
With setback latch:
This subclass is indented under subclass 248. Subject matter
having means to hold the timing device inoperative until
released by a setback force.
(1) Note. The term "setback" as used in this subclass is
defined in subclass 231 above.
Subclass:
250
Fluent material:
This subclass is indented under subclass 248. Subject matter
in which the timing device includes a fluid-like material,
i.e., a liquid or granular material.
(1) Note. Subject matter of this subclass type includes, for
example, sand, small balls, etc.
Subclass:
251
Rotor or slide with setback release:
This subclass is indented under subclass 247. Subject matter
in which the blocking or interrupting means is rotatable or
slidable and is held inoperative by means which releases the
blocking or interrupting means in response to a setback
force.
(1) Note. The term "setback" as used in this subclass is
defined in subclass 231 above.
Subclass:
252
Impacting device latch:
This subclass is indented under subclass 247. Subject matter
in which a first means (i.e., latch) holds inoperative a
second means (i.e., impacting device) for creating an impulse
of mechanical force until the first means is caused to
release the second means by a setback force.
(1) Note. The term "setback" as used in this subclass is
defined in subclass 231 above.
Subclass:
253
Ball and detent:
This subclass is indented under subclass 252. Subject matter
in which the latching means includes a cooperating ball and
detent.
Subclass:
254
Slide and rotor:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means is rotatable or
slidable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
226 (1) Note, for examples of rotors or slides of this
subclass (254) type.
Subclass:
255
Timing device operated:
This subclass is indented under subclass 254. Subject matter
in which the rotor or slide is actuated or operated by a
delay causing means.
Subclass:
256
Spring operated:
This subclass is indented under subclass 254. Subject matter
in which the rotor or slide is operated by a spring means.
Subclass:
257
Timer operated impacting device latch:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means is a timing
device which operates or releases a means for creating an
impulse of mechanical force.
Subclass:
258
Externally released latch:
This subclass is indented under subclass 222. Subject matter
in which the blocking or interrupting means includes a means
either physically removable from the device to be armed or
actuated from outside the device to be armed.
Subclass:
259
Bore riding pin:
This subclass is indented under subclass 258. Subject matter
in which the device to be armed is a missile launched by a
device having a missile guiding bore and in which the
blocking or interrupting means includes a latch which is held
in its restraining position by the bore of the launching
device and which moves to its release position after the
missile leaves the bore of the launching device.
Subclass:
260
Manually released:
This subclass is indented under subclass 258. Subject matter
in which the latch is released by hand.
Subclass:
261
To actuate impacting means:
This subclass is indented under subclass 260. Subject matter
in which the release of the latch actuates a means for
creating an impulse of mechanical force.
Subclass:
262
Switch:
This subclass is indented under subclass 221. Subject matter
which includes an electrical switching means which opens or
closes an arming circuit.
Subclass:
263
Vane or fluid pressure operated:
This subclass is indented under subclass 262. Subject matter
in which the switching means is caused to be opened or closed
by a rotating vane or by fluid pressure.
Subclass:
264
Timing device operated:
This subclass is indented under subclass 262. Subject matter
wherein the switching means is opened or closed by a timing
device.
Subclass:
265
Multiple mode fuzes:
This subclass is indented under subclass 200. Subject matter
which includes a plurality of igniting devices or systems
which may operate independently of one another.
Subclass:
266
Impact and time delay:
This subclass is indented under subclass 265. Subject matter
in which one of the igniting devices or systems is actuated
upon impact with a target and another one of the igniting
devices or systems detonates the main charge after a
predetermined time delay.
(1) Note. Subject matter of this subclass type includes, for
example, self-destruct type fuzes.
Subclass:
267
Spin decay:
This subclass is indented under subclass 266. Subject matter
in which the armed device is carried by a missile and in
which the delay mode actuation is caused by the slowing down
of the spinning of the missile carrying the armed device.
Subclass:
268
Mechanical time delay:
This subclass is indented under subclass 266. Subject matter
in which the time delay is caused by a mechanical timing
means.
Subclass:
269
Powder train delay:
This subclass is indented under subclass 266. Subject matter
in which the time delay is caused by the burning of a
predetermined length of explosive.
Subclass:
270
Mode selecting means:
This subclass is indented under subclass 265. Subject matter
in which the armed device is carried by a missile and which
includes a means for selecting the igniting device or system
before the missile is launched.
Subclass:
271
Delay or impact:
This subclass is indented under subclass 270. Subject matter
in which the choice of modes is between an igniting device or
system which detonates the main explosive on target impact
and one which detonates the main explosive after a
predetermined delay from launch.
Subclass:
272
Impacting devices:
This subclass is indented under subclass 200. Subject matter
including a device to impart an impulse of mechanical force
to a percussion sensitive explosive.
Subclass:
273
Graze or multiangle:
This subclass is indented under subclass 272. Subject matter
in which the impacting device is actuated by a sliding (i.e.,
grazing) hit or a hit other than head on.
(1) Note. Subject matter of this subclass type may be
referred to in the art as "all-way fuzes" and "multiangle
fuzes".
Subclass:
274
Spring driven with latch:
This subclass is indented under subclass 272. Subject matter
in which the impacting device is urged toward ignition, but
is held back by a releasable means.
Subclass:
275
With frangible restraint:
This subclass is indented under subclass 272. Subject matter
in which the impacting device is held by a restraint which
fractures or gives way to release the impacting device when
subjected to a predetermined force.
Subclass:
275.1
Fuse cord (e.g., blasting cord):
This subclass is indented under subclass 200. Subject matter
for setting off explosive or thermic charges which includes
an indefinite length of flexible material including a
combustible substance along the length of the material which
substance when ignited or detonated causes the ignition or
detonation to travel the length of the combustible substance
to transfer the ignition or detonation to an explosive or
thermic charge.
(1) Note. The term "indefinite length" includes cords,
ropes, tapes, and tubes.
(2) Note. The term "combustible" includes burning,
deflagrating, and detonating.
(3) Note. Included are safety fuses, igniter cords, timing
fuses, and detonator cords.
(4) Note. Included are connectors, per se, which join fuse
cords together to form an explosive circuit to fire a main
charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 for protective covers for a blasting cap joined to a
fuse.
277.1 for powder trains, fixed or variable.
SEE OR SEARCH CLASS:
86, Ammunition and Explosive-Charge Making, subclass 1 for
methods and apparatus for making fuse cords.
149, Explosive and Thermic Compositions or Charges,
subclasses 71+ for a composition having a nitrogen and
oxygen containing salt, carbon, and sulfur.
Subclass:
275.11
Initiating devices:
This subclass is indented under subclass 200. Subject matter
which includes nonelectric devices, per se, used to ignite
and explosive or thermic composition or charge of the primer
or ignitor type.
(1) Note. Here are manually operated initiators.
SEE OR SEARCH THIS CLASS, SUBCLASS:
204 for percussive primers or ignitors.
205 for heat, friction, or chemical primers or ignitors.
275.6 for a fuse cord with an igniting device.
SEE OR SEARCH CLASS:
44, Fuel and Related Compositions, subclasses 506+ for a
solid fuel having a friction igniting mass or surface and
subclass 519 for a solid fuel composition or product having a
wick or fuse.
431, Combustion, subclasses 267+ for frictional, chemical,
or percussive type ignitors; and subclasses 288+ for
candles.
Subclass:
275.12
Holders for fuse or fuse cord to blasting cartridge, igniting
device or detonator:
This subclass is indented under subclass 200. Subject matter
which includes devices, per se, to secure a fuse cord to a
detonating or igniting device or a fuse cord with or without
a detonating or igniting device to a blasting cartridge or
other explosive charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 for protective covers for detonators.
202.12 for electric primer or ignition assemblies.
275.7 for a fuse cord with a cord coupling device.
Subclass:
275.2
With one-way connector or arrangement:
This subclass is indented under subclass 275.1. Subject
matter which include (a) a connector joining the combustible
substance of the indefinite length of fuse material to
another indefinite length of fuse material by means to permit
a one-way transfer of the detonation or burning proceeding
along one indefinite length to the other indefinite length,
or (b) the joining of the combustible substance of the
indefinite length to a second combustible length of fuse
material to permit only the passage of the burning or
detonation one-way.
Subclass:
275.3
With combustible time-delay cord connection means:
This subclass is indented under subclass 275.1. Subject
matter which includes a connector containing a combustible
time delay joining an end of the indefinite length of
material including the combustible substance to an end of a
second indefinite length of material including a combustible
substance in a series arrangement.
(1) Note. The connector, per se, with the contained
combustible time delay is placed as an original in this
subclass.
(2) Note. To have a detonator or safety fuse cord ignite the
combustible time delay, an explosive with or without other
thermic materials may be necessary in the connector, and they
may or may not be claimed.
(3) Note. The first and the second cord or only one of these
cords may be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
277.1 for time controlled munition powder trains.
Subclass:
275.4
To or from connector having booster charge:
This subclass is indented under subclass 275.1. Subject
matter which includes a booster explosive charge containing
connector to join the combustible substance of the indefinite
length material to the charge to (a) detonate the charge, or
(b) to have the charge detonate the combustible substance of
the indefinite length material.
(1) Note. Here are the connectors per se.
(2) Note. The combination of a fuse cord to a booster charge
containing connector to one or more fuse cords is here.
(3) Note. The detonator fuse cord and the charge containing
connector may set off a main charge not claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311 for a fuse cord and a booster to set off a blasting
charge at each of several locations.
313 for a fuse cord and a booster charge to set off a
blasting charge placed or inserted in a borehole.
318 for a fuse cord and a booster charge to set off a
blasting charge.
322 for a fuse cord and a booster charge to set off a
blasting charge.
Subclass:
275.5
With explosive charge:
This subclass is indented under subclass 275.1. Subject
matter which includes an explosive charge connected to the
combustible substance of the indefinite length material so
that the ignited or detonated combustible substance will
ignite or detonate the explosive charge or vice versa.
(1) Note. Explosive charge includes deflagrating material.
(2) Note. No main charge is claimed in this subclass.
(3) Note. A fuse cord with a integral booster charge, a
blasting cap, or other detonator is here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 305+ for detonation wave modifying and shaped
charges ignited or detonated by a fuse cord and a detonator.
311 for patterned blasting involving plural locations set
off by a fuse cord and a detonator.
313 for an inserted or placed blasting charge in a borehole
set off by a fuse cord and a detonator.
322 for a contained blasting charge set off by a fuse and
detonator.
332 for a blasting charge set off by a fuse and a
detonator.
Subclass:
275.6
With igniting means:
This subclass is indented under subclass 275.1. Subject
matter which includes combustible material attached to or
part of the indefinite length material so that the
combustible material when ignited will cause the ignition of
the combustible substance of the indefinite length material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.5 for electric ignition of a fuse cord.
204 for percussion primers or ignitors.
205 for heat, friction, or chemical primers or ignitors.
275.11 for nonelectric initiating devices to ignite or
detonate an explosive or thermic composition.
322 for a contained blasting charge with a primer or
ignitor.
332 for a blasting charge with a primer or ignitor.
subclasses 499+ for shells with ignition means.
subclasses 530+ for jacketed or cartridge gas generators
sources with igniting means.
SEE OR SEARCH CLASS:
44, Fuel and Related Compositions, subclasses 506+ for a
solid fuel having a friction igniting mass or surface and
subclass 519 for a solid fuel composition or product having a
wick or fuse.
431, Combustion, subclasses 267+ for frictional, chemical,
or percussive type ignitors; subclass 287 for a combustion
starting assistant; and subclasses 288+ for candles.
Subclass:
275.7
With cord holding device to couple cords:
This subclass is indented under subclass 275.1. Subject
matter wherein the indefinite length of material with a
combustible substance is a detonator cord and there is a
holder to place the detonator cord in relation to another
detonator cord so that the shock wave traveling in one cord
and induce a shock wave in the other cord.
(1) Note. The second detonator cord may or may not be
claimed.
(2) Note. The holder, per se, is here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275.3 for a connector with a booster and a combustible time
delay between detonator cords.
275.4 for a connector with a booster explosive to join two
cords.
Subclass:
275.8
Detonator cord:
This subclass is indented under subclass 275.1. Subject
matter wherein the combustible substance is one which
detonates to produce a shock wave which is used to detonate a
shock sensitive explosive charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.5 for electrically detonated detonator cords.
275.5 for a detonator cord detonated blasting cap.
305 for detonation wave modifying including shaped charges
with a detonator cord primer.
311 for patterned blasting at plural locations using a
detonator cord primer.
313 for placing or inserting a blasting charge in a borehole
to be set off by a detonator cord.
322 for a contained blasting charge set off by a detonator
cord.
332 for a blasting charge set off by a detonator cord.
SEE OR SEARCH CLASS:
149, Explosive and Thermic Compositions or Charges,
subclasses 105+ for detonator cord compositions.
Subclass:
275.9
Fuse:
This subclass is indented under subclass 200. Subject matter
which includes methods and apparatus involving nonelectric
devices for setting off a larger explosive or thermic charge
not classified elsewhere in the class.
(1) Note. Here are casings containing an ignitor or a primer
charge with no means to ignite or detonate the ignitor or
detonator charge.
(2) Note. Here are electric blasting caps with a casing,
bridge plug, and an explosive or thermic charge with no
electrical features or ignitor claimed.
(3) Note. Casings, per se, for a fuse are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.1 for accidental fuse ignition prevention means.
202.5 for electric primers or ignitors.
204 for percussive primers or ignitors.
205 for heat, friction, or chemical primers or ignitors.
275.1 for igniting, detonating, or safety fuses.
Subclass:
276
Time controlled:
This subclass is indented under subclass 200. Subject matter
which includes a timing or delay causing means.
Subclass:
277
With fluent material:
This subclass is indented under subclass 276. Subject matter
in which the timing or delay causing means includes a fluid,
fluid-like or granular material.
Subclass:
277.1
Munition powder train:
This subclass is indented under subclass 276. Subject matter
wherein the timing or delay causing means includes a path of
powder having ends so that the powder, when ignited, burns
along the path to an end where the burning can be transferred
to an explosive or thermic charge.
(1) Note. Here are mainly shell munition fuses.
(2) Note. The means to ignite the powder may or may not be
claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.13 for an electric primer or ignitor with a powder train
time delay.
269 for a multiple mode fuse including a powder train time
delay.
275.1 for detonator, ignition, and safety fuse cords,
particularly subclass 275.3 for a fuse cord with a
combustible time delay cord connector means.
Subclass:
277.2
Train length selection means:
This subclass is indented under subclass 277.1. Subject
matter wherein there is included means to adjust the length
of powder path between its ends to be ignited so as to create
a variable combustible time fuse.
Subclass:
281
EXPLOSIVE CAPS FOR TOY GUNS:
This subclass is indented under the class definition. Subject
matter which comprises explosive packets or containers
commonly referred to as "caps" for merely producing a noise
when used with a toy gun or other impacting means.
Subclass:
282
PROPELLENT CHEMICAL CHARGE CONTAINER:
This subclass is indented under the class definition. Subject
matter which includes apparatus and corresponding methods
involving a container to hold a propellent charge.
(1) Note. Consumable and partly consumable powder bags are
here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 314+ for a contained blasting charge,
particularly subclass 323 for a charge with a rupturable or
expansible casing.
324 for a charge having a flexible tube or bag container.
331 for blasting charge cases.
subclasses 464+ for cartridge cases.
subclasses 530+ for jacketed or cartridge gas generator
sources for blank shells or cartridges, and gas-powered tools
or means.
SEE OR SEARCH CLASS:
383, Flexible Bags, appropriate subclasses for a flexible
bag.
Subclass:
283
POWDER FORM:
This subclass is indented under the class definition. Subject
matter which includes method and apparatus including a
chemically reactive combustible composition having more than
a nominal solid propellent form for the purpose of changing
the burning rate or the manner of burning when ignited.
(1) Note. The "solid propellent form" is defined here as
being a unitary mass of solid propellent composition or a
plurality of individual propellent forms united to define a
unitary or composite form which includes: (a) an external or
internal surface of specific configuration; (b) a burning
rate modifier structure which directs a flame front through
the form (the "flame front" is intended to be the actual
burning surface of the solid propellent form at any
particular instant in the total burning period); or (c)
reinforcing or form support means attached to or imbedded
within or in immediate contact with the propellent form, or
forming a portion of the unitary structure.
The solid propellent composition includes all detonating and
deflagrating compositions, including immediately adjacent
oxidizer and fuel compositions (see "(1) Note", Class 60,
Power Plants, subclass 205), which react under combustion to
detonate or deflagrate. It further includes a solid fuel or
solid oxidizer composition which is adapted to be brought in
immediate contact with a solid or fluid oxidizer or fuel,
respectively, when combustion is desired. For example, the
solid propellent form used in reaction motors of the type
classified in Class 60, Power Plants, subclass 251 would be
included under this definition. The solid propellent
composition referred to above excludes manufactured fuel of
general utility, such as fuel briquets which are provided for
elsewhere, see the search notes below.
(2) Note. A "granule" of propellent is defined here as
synonymous with finely divided particulate or powdered
material, and further includes an individual propellent form
which is disclosed as used in combination with other
unconnected granules of an identical or similar shape, size,
or composition which produce a combined gas producing result
upon combustion. Each granule burns individually with its own
individual characteristics depending upon its shape, size,
and composition. The individual characteristics of each
granule are combined with the characteristics of other
unconnected granules to produce a total desired result upon
combustion.
(3) Note. A "solid propellent form" claimed with only a
nominal shape is provided for elsewhere, see the search notes
below. However if the "solid propellent form" is
characterized by structure or size such that there is
imparted to the form the capacity to function as an
individual unit to produce or alter a particular detonation
or deflagrating effect the form is not regarded as nominal
and is classified under this definition.
The following examples have been considered to be significant
inclusion of structure and if included would cause
classification in this class (102): (a) a generally
perforated propellent mass combined with a specific density;
(b) a broadly configured mass (i.e., a sheet) with at least
one specific dimension; and (c) a porous propellent mass
claimed in combination with a capillary perforation extending
therethrough.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or systems with an
explosive, deflagrating, or igniting composition.
305 for a detonation wave modifying explosive.
subclasses 314+ for a contained blasting charge.
332 for a blasting charge having a definite structural form
used for blasting purposes.
subclasses 335+ for pyrotechnics including flares in
subclasses 336+.
subclasses 372+ for a radially directed propelling means.
subclasses 374+ for a reaction motor with a payload.
subclasses 401+ for mines.
subclasses 430+ for cartridges which include a casing with
gun powder.
subclasses 464+ for cartridge cases.
subclasses 473+ for shells having an explosive within.
subclasses 530+ for a jacketed or cartridge gas generator
source with or without an ignitor.
SEE OR SEARCH CLASS:
44, Fuel and Related Compositions, subclasses 530+ for a
fuel product having a defined shape or structure.
60, Power Plants, subclass 39.47 for a solid propellent form
in combination with nominal reaction motor casing structure
with no nozzle claimed; subclass 251 for a reaction motor
with a specific form of an oxidizer or fuel charge within a
reaction motor and which charge is adapted to be brought in
contact with a fluid fuel or oxidizer, respectively, upon
ignition; subclass 252 for a reaction motor with a specific
form of a gel propellant within a reaction motor; and
subclasses 253+ for a reaction motor having a solid
propellant.
86, Ammunition and Explosive-Charge Making, subclass 1 and
20 for methods and apparatus of making a propellent form by
other than molding.
149, Explosive and Thermic Compositions or Charges,
subclasses 2+ for structure or arrangement of component or
product.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 3+ for explosive or propellant
article shaping or treating.
Subclass:
284
Spiral type:
This subclass is indented under subclass 283. Subject matter
wherein the form is wound circularly to make a curve that
constantly increases in size or the form has a portion that
circles about a point in a curve that constantly increases in
size.
SEE OR SEARCH THIS CLASS, SUBCLASS:
285 for layer-type powder forms.
332 for sheet-type blasting charges.
SEE OR SEARCH CLASS:
149, Explosive and Thermic Compositions or Charges, subclass
3 for a coating and a base or a support; and subclasses 14+
for superimposed or contiguous layers of different
compositions or different properties.
Subclass:
285
Composite type:
This subclass is indented under subclass 283. Subject matter
which includes a unitary solid propellent form composed of a
plurality of members.
(1) Note. Here are single grain composite gas generator
sources for (a) rocket motors, (b) weapons, and (c)
gas-powered tools where the grain is not in a housing.
(2) Note. The oxidizer and the reducing chemicals may be in
each of the members or one member may contain the oxidizer
and the other member may contain the reducing chemical.
(3) Note. Generally, the propellent form has a solid
oxidizer and reducing agent, but one of the two can be a
liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
374 for reaction motors with a payload.
subclasses 430+ for cartridges which have a contained
powder charge.
472 for spiral-type powder forms.
subclasses 530+ for jacketed or cartridge gas generator
sources.
SEE OR SEARCH CLASS:
60, Power Plants, subclass 39.01 for methods and apparatus
for using combustion products as a motive fluid; subclass 219
for methods using solid material in reaction zone of reaction
motor; subclasses 253+ for reaction motors using a solid
propellent; and subclasses 632+ for one shot explosion
actuated expansible chamber-type motors.
149, Explosive and Thermic Compositions or Charges,
subclasses 3+ for coated component of a structure or
arrangement of component or product; and subclasses 14+ for
contiguous layers or zones of a structure or arrangement of
component or product.
244, Aeronautics, subclass 74 for explosive jet aircraft
propulsion; and subclass 172 for spacecraft with propulsion.
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or
Locked-Threaded Fastener, subclasses 440+ for fasteners
having means to facilitate the explosive driving of the
fastener.
Subclass:
286
Having different burning rates:
This subclass is indented under subclass 285. Subject matter
wherein the propellent form includes members having different
speeds of combustion.
Subclass:
287
Rocket motor type:
This subclass is indented under subclass 296. Subject matter
wherein the propellent form is a rocket propellent grain.
Subclass:
288
Powder grain shape formed of fixed shape segments:
This subclass is indented under subclass 285. Subject matter
wherein each of the plurality of members are of fixed shape
and when only the members are place together, form a single
unitary configuration whose overall solid propellent form is
different than any of the parts.
(1) Note. The overall form may be cylindrical, hexagonal,
star shaped, cruciform, etc.
Subclass:
289
Having embedded reinforcing or burning control means:
This subclass is indented under subclass 283. Subject matter
including structural means within the form to (a) strengthen
the form, (b) change the surface burning area of the form, or
(c) change the burning rate of the form.
(1) Note. The form material can be heated to the ignition
temperature where it contacts the structural means heated by
conduction from the burning propellent or heated by the
ignited structural means ignited by the burning form. This
heating changes the burning surface area of the form and the
burning rate of the form.
(2) Note. The "structural means" excludes flakes, powders,
chips, or particles of metal used as a burning rate additive
in the propellent composition.
(3) Note. The "structural means" includes metallic wires,
fiber glass strands, sheets of corrugated metal, wire screen,
hardware cloth, or the like.
(4) Note. The "structural means" includes form supporting
means which inherently reinforces the form or it may be a
burning front guide means which functions to direct the flame
front through a preselected path in the propellent form.
SEE OR SEARCH THIS CLASS, SUBCLASS:
286 for a fixed shape propellent form composed of fixed
segments having different burning rates.
290 for powder forms having burning inhibiting means having
a different rate than the propellent form placed on the
surface of the form.
SEE OR SEARCH CLASS:
149, Explosive and Thermic Compositions or Charge, subclass
89 for compositions or charges having a fuel component
having a metal, metalloid, metal hydride, metalloid with a
hydrocarbon or halogenated hydrocarbon.
Subclass:
290
Having burning inhibiting means:
This subclass is indented under subclass 283. Subject matter
wherein the propellent form has surfaces limiting the
physical extent of the form and includes a medium, to control
the burning area of the form, selectively placed on one or
more of the surfaces to control the amount of the surface and
the shape of the surface that can be burned at any instant of
time.
(1) Note. The medium to inhibit may be combustible but it
burns at a slower rate than the propellent form.
SEE OR SEARCH THIS CLASS, SUBCLASS:
286 for composite propellent forms having different burning
rates.
289 for burning control means within the propellent form.
SEE OR SEARCH CLASS:
60, Power Plants, subclass 253 for reaction motors of the
solid type having inhibiting means to produce a particular
burning.
Subclass:
291
Rocket propellent grain:
This subclass is indented under subclass 283. Subject matter
wherein the solid propellent form is a powder charge which,
when ignited, will create a hot gas which is the moving force
of a reaction motor.
(1) Note. Here are the propellent grains, per se, used to
propel missiles, rockets, aircraft, and spacecraft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202 for propellent ignitors with a propellent rocket grain
which travels with a missile.
202.5 for an electrically ignited powder form.
subclasses 347+ for pyrotechnic rockets of the fireworks
type.
subclasses 374+ for reaction motors, particularly subclass
380 for a reaction motor with an ignitor means having a
payload.
531 for jacketed or cased rocket propellent grains.
SEE OR SEARCH CLASS:
60, Power Plants, subclass 200.1 for reaction motors,
particularly subclass 219 for methods of operating a reaction
motor by using solid material in the reaction zone.
244, Aeronautics, subclasses 73+ for devices relative to
and combined with an aircraft using jets of air or other
fluid for propelling aircraft; and subclass 172 for
spacecraft with propulsion.
Subclass:
292
Powder grain:
This subclass is indented under subclass 283. Subject matter
wherein the solid propellent form is a powder granule.
(1) Note. A granule here is a singularly shaped chemical
powder having shape or structure for the purpose of modifying
the rate of manner of burning or exploding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 314+ for blasting cartridges which contain a
plurality of propellent grains forming the blasting charge.
subclasses 335+ for pyrotechnics including flares and
fireworks made up of a plurality of granules to form a
charge.
subclasses 430+ for cartridges including shotgun shells
having a charge made of a plurality of grains.
473 for shells containing a charge having a plurality of
grains.
SEE OR SEARCH CLASS:
86, Ammunition and Explosive-Charge Making, subclasses 10+
for making caps and cartridges; and subclasses 20+ for
loading bursting charges; and subclasses 23+ for ammunition
loading having a charge of a plurality of grains.
149, Explosive and Thermic Compositions or Charges,
subclasses 2+ for compositions or products having a
particular shape or structure of one ingredient of the
composition or product or the nominal shape and/or the
physical characteristic of the composition or product. See
the notes to this subclass, subclass 3, and the general notes
to this class.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 3+ for methods for molding or
treating a propellent form.
Subclass:
293
MISCELLANEOUS:
This subclass is indented under the class definition. Subject
matter which is not provided for under any of the preceding
subclass.
Subclass:
301
BLASTING:
This subclass is indented under the class definition.
Apparatus and corresponding methods involving the breaking up
or the destruction of natural or man-made objects or material
by the use of a fluid under high pressure including means for
(a) the sudden release of the fluid under high pressure
resulting from a chemical reaction, or (b) a very rapid
escape or release of the fluid under high pressure.
(1) Note. This and the indented subclasses include
accessories, e.g., mats, plugs, etc., or subcombinations
specialized in blasting.
(2) Note. This group of subclasses does not include
ammunition for weapons. See "SEARCH THIS CLASS, SUBCLASS",
for notes to subclasses.
(3) Note. The objects or material broken up or destroyed may
be above or below the ground or underwater.
(4) Note. The blasting may be for mining, excavation, or
demolition purposes. See "SEARCH CLASS" notes for classes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 283+ for powder forms.
subclasses 363+ for fuel air explosives.
subclasses 382+ for drop bombs.
subclasses 401+ for mines.
subclasses 530+ for jacketed or cartridge gas generator
sources.
SEE OR SEARCH CLASS:
37, Excavating, subclass 201 for railway snow excavators of
the blasting type.
72, Metal Deforming, subclass 56 for metal deforming by an
explosive force.
86, Ammunition and Explosive-Charge Making, subclass 20 for
methods and apparatus for placing of explosive compositions
and devices to transport the composition into a blast hole
without detonation of the composition; and subclass 22 for
tools for cutting, capping, and placing fuses in a blasting
charge.
89, Ordnance, subclass 1.14 for explosively operated
apparatus including explosively operated splitting wedges.
109, Safes, Bank Protection, or a Related Device, subclass 1
for bomb exploding or removing devices.
149, Explosive and Thermic Compositions or Charges,
particularly subclasses 2+ for structure or arrangement of
component or product.
166, Wells, subclass 299 for a process involving an
explosion; and subclass 63 for apparatus for causing an
explosion in a well.
175, Boring or Penetrating the Earth, subclasses 2+ for
boring with an explosion in an inaccessible hole.
250, Radiant Energy, subclasses 302+ for the testing for
radiation tracing material in blasting charges.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 3+ for explosive or propellent
article shaping or treating.
299, Mining or In Situ Disintegration of Hard Material,
subclass 13 for processes involving explosives.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, subclass 914 for nuclear explosives.
Subclass:
302
Terrain clearance:
This subclass is indented under subclass 301. Subject matter
wherein the means for sudden release of the fluid is used to
remove foliage.
(1) Note. The blasting means may act on another device to
cause detonation or removal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
403 for explosive mine clearing means.
Subclass:
303
Mat or deflector:
This subclass is indented under subclass 301. Subject matter
which includes a covering, for placement over an explosive
device, which catches or deflects solid material propelled by
the detonation of an explosive device to prevent damage to
people or property by the propelled material.
(1) Note. Mats for bombs are in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for stemming material.
333 for blasting plugs.
SEE OR SEARCH CLASS:
109, Safes, Bank Protection, or a Related Device, subclass 1
for bomb disposal safes, and subclass 49.5 for shields and
protectors.
Subclass:
304
Blasting plug including an opening for a fuse, fuse ignitor,
or explosive:
This subclass is indented under subclass 301. Subject matter
which includes means to seal the opening of a blast hole
having a passageway for (a) a fuse cord or fuse ignitor, or
(b) supplying or holding an explosive in the plug or blast
hole.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for stemming used to seal blast holes or combined with a
charge not provided for elsewhere.
333 for blasting plugs.
Subclass:
305
Detonation wave modifying:
This subclass is indented under subclass 301. Subject matter
wherein the means is an explosive charge and there is means
to change the shape or direction of the detonation wave
resulting from the detonation of the charge.
(1) Note. The means to change the shape or direction of the
detonation wave may be integral with the explosive or
separate therefrom.
(2) Note. The means to ignite or detonate the explosive
charge may or may not be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 475+ for a shell having focussed or directed
detonation.
Subclass:
306
Shaped charge or charge with detonation wave cavity
modifier:
This subclass is indented under subclass 305. Subject matter
wherein the explosive charge (a) has a cavity in its external
surface, or (b) has a material next to the charge with a
cavity in its external surface, the charge upon detonation
produces a detonation wave front determined by the shape of
the cavity.
(1) Note. Included in this group of subclasses, per se, or
combined with the cavity is a liner conforming to the shape
of the cavity. The cavity upon detonation of the charge
produces a wave front, dependent on the cavity shape which
acts on the liner to propel the liner and shape the liner
into a jet stream of high energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
331 for a container for a blasting charge. 476, for a shell
having a shaped charge.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 1.15 for well perforators of the
shaped charge type.
175, Boring or Penetrating the Earth, subclass 4.6 for a
shaped charge to attack the formation or wall member in a
hole.
Subclass:
307
Linear or curvilinear cavity:
This subclass is indented under subclass 306. Subject matter
wherein the cavity has two sides which taper outward from a
line intersection of the two sides to form a through like
linear or curvilinear cavity.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 1.14 for explosively operated
apparatus including material cutting devices using linear or
curvilinear charges.
Subclass:
308
Tandem charge:
This subclass is indented under subclass 306. Subject matter
wherein there are plural explosive charges, axially aligned,
one next to the other, at least one being a shaped charge,
the detonation of the one charge reinforces the other charge
to produce a additive detonating effect at the same
location.
(1) Note. One of the charges may be a booster.
(2) Note. The charges may be ignited simultaneously or
sequentially.
SEE OR SEARCH THIS CLASS, SUBCLASS:
310 for plural shaped charges.
317 for axially aligned contained charges with structure to
join the charges end to end.
320 for plural contained charges.
Subclass:
309
Having a barrier:
This subclass is indented under subclass 306. Subject matter
which includes a member to direct and alter the detonation
wave through the charge, when detonated, to the cavity.
Subclass:
310
Plural charges:
This subclass is indented under subclass 306. Subject matter
having more than one shaped charge.
(1) Note. Here are well perforators having a support, with a
plurality of shaped charges each aimed in different
directions, adapted to be lowered into a well. The perforator
is also called a gun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
307 for a linear or curvilinear-shaped charge cavity which
may have plural explosive charges.
308 for plural charges axially aligned, at least one charge
being a shaped charge.
317 for similar contained charges joined end to end.
318 for a booster charge and a main charge.
320 for plural contained charges.
SEE OR SEARCH CLASS:
175, Boring or Penetrating the Earth, subclass 4.6 for a
shaped charge in an inaccessible hole.
Subclass:
311
Pattern blasting:
This subclass is indented under subclass 301. Subject matter
wherein there is a blasting charge at each of several
locations.
(1) Note. The blasting charge includes (a) an explosive, or
(b) a fluid under high pressure capable of escaping or being
released rapidly for the purposes of breaking up material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 206+ for charge ignition or detonating
circuits.
subclasses 305+ for detonation wave modifying including
subclass 310 for plural shaped charges.
313 for placing or inserting charges in a borehole.
317 for similar contained charges joined end to end in a
borehole.
319 for a contained charge with well-anchoring means,
wall-contacting guides, or buffers.
320 for plural charges at least one a contained charge.
332 for plural charges in a borehole.
Subclass:
312
Borehole arrangement:
This subclass is indented under subclass 311. Subject matter
wherein a blasting charge is in each of several boreholes.
Subclass:
313
Borehole loading:
This subclass is indented under subclass 301. Subject matter
including means for placing or inserting (a) an explosive, or
(b) a fluid under high pressure capable of rapid expansion to
break up material in a hollowed-out place.
(1) Note. The "hollowed out place" can be in or on the
earth, under the water, or within some object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 305+ for borehole loading involving the shaping
or the directing of a detonation wave.
subclasses 311+ for loading boreholes or patterned blasting
arrangements.
321 for a contained blasting charge having a support means
including bails.
SEE OR SEARCH CLASS:
86, Ammunition and Explosive-Charge Making, subclass 20 for
loading an explosive charge into a blast hole when making the
charge or when not detonated.
166, Wells, subclass 299 for a process involving an
explosion; and subclass 63 for apparatus for causing an
explosion in a well.
175, Boring or Penetrating the Earth, subclasses 2+ for
boring a hole with an explosive in an inaccessible place.
181, Acoustics, subclass 101 for seismic exploration using
an explosive compressional wave source placed in a hole.
212, Traversing Hoists, subclasses 312+ for traveling
cranes, subclasses 223+ for rotary cranes, and subclasses 71+
for overhead hoists.
242, Winding, Tensioning, or Guiding, subclasses 370+ for a
reeling device of general use.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclasses 2+ for hoisting trucks; and subclasses
264+ for cable-hauling apparatus.
294, Handling: Hand and Hoist-Line Implements, subclasses 19+
for poles; and subclass 78 for cable and hook tackle.
299, Mining or In Situ Disintegration of Hard Material,
subclass 13 for processes using explosives.
414, Material or Article Handling, subclasses 680+ for
vertically swinging load supports.
Subclass:
314
Contained blasting charge:
This subclass is indented under subclass 301. Subject matter
which includes a container and an explosive within the
container, the contained explosive being capable of being
detonated for blasting purposes.
(1) Note. Included in this group are contained materials
which are components which make up the blasting charge but
lack some necessary ingredient which is added at a later
time.
(2) Note. Commercial and military demolition blasting
charges are in this section.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 283+ for explosive or deflagrating powder
forms.
subclasses 305+ for a contained charge and means to vary or
alter the direction of the detonation waveform when the
charge is detonated.
subclasses 311+ for patterned blasting where plural charges
are located at separate locations, including borehole
arrangements.
313 for means to place or insert a contained explosive or a
blasting fluid capable of rapid expansion in a hollowed-out
place.
subclasses 325+ for contained pressurized nondetonating
blasting charges.
331 for blasting charge cases, per se.
332 for blasting charges having an overallshape.
subclasses 530+ for a jacketed or cartridge gas generator
power sources for blank cartridges and gas powered tools.
SEE OR SEARCH CLASS:
149, Explosive and Thermic Compositions or Charges,
subclasses 2+ for structure or arrangement of component or
product.
Subclass:
315
Having or receiving separated explosive constituents:
This subclass is indented under subclass 314. Subject matter
wherein there are first and second containers each having a
component necessary to form a blasting charge and means to
allow the components to come together to form the blasting
charge.
(1) Note. The first and second containers may be in a third
container, the first or second container may enclose the
other container, or the first and second container may be
separate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
313 for borehole loading of an explosive whose components
are mixed in or out of the boreholes.
SEE OR SEARCH CLASS:
86, Ammunition and Explosive-Charge Making, subclass 20 for
the loading of bursting charges where the charge is not
detonated.
206, Special Receptacle or Package, subclasses 219+ for
mixing of materials in a container.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 3+ for explosive or propellent
article shaping or treating.
Subclass:
316
With flame or heat suppressant:
This subclass is indented under subclass 314. Subject matter
which includes a substance which, upon the detonation of the
explosive and the release of heat or flame as a result of the
explosion, prevents or minimizes the chances of the
surroundings from catching fire or causing an explosion by
putting out the flame or absorbing some of the heat of the
explosion.
(1) Note. The substance will (a) absorb some of the heat of
the explosion, or (b) volatilizes, (c) liquifies, (d)
releases water of crystallization and absorbs some of the
heat resulting from the explosion, or (e) forms a gas which
will not support combustion.
(2) Note. The substance may be in the form of a sheath about
the container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for tamping materials in a blast hole which will cool
the blast area or smother the flames of the blast.
313 for borehole loading of a blasting charge having means
to cool the reacting blasting charge or the surrounding
medium blasted or to quench the flames of the blast.
326 for contained pressurized blasting fluids which are
generated by chemical reaction and may include a cooling
medium or a flame quenching material for the generated
blasting fluid.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 18.11 for
compositions having fire-proofing agents.
252, Compositions subclasses 2+ for fire-extinguishing
compositions and the processes for making the compositions
including chemicals decomposed by heat to form a
noncombustible gas; and subclass 67 for compositions
involving vaporization, heat, or energy exchange.
Subclass:
317
Similar contained charges joined end to end:
This subclass is indented under subclass 314. Subject matter
which includes a plurality of like type contained charges,
each having ends and means at each end of every contained
charge to hold one end of another contained charge in a
series arrangement.
(1) Note. The individual contained charges themselves may
(a) incorporate the means to hold the plurality of contained
charges in series, or (b) the means may be entirely separate
from the contained cartridges, or (c) structure on each of
the contained charges may cooperate with additional structure
separate from the contained charges to hold the charges end
to end.
(2) Note. In name only, contained charges or the container,
per se, claiming only the details to hold the contained
charges end to end are in this subclass rather than subclass
331.
(3) Note. A claimed single blasting charge container
designed to join end to end similar charged container is in
this subclass.
(4) Note. A booster charge in one of the charged containers
joined at its end to an end of a similar charged container
having a main charge is in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311 for pattern blasting at plural locations.
313 for borehole loading at one location of a string of
explosives.
318 for a booster and a main charge, at least one being
contained.
320 for plural charges, at least one being contained.
332 for charges not contained.
SEE OR SEARCH CLASS:
181, Acoustics, subclass 116 for explosive type seismic wave
generation.
403, Joints and Connections, subclass 24 for coupling parts
installed in an art device.
Subclass:
318
Booster or charge with booster detonator:
This subclass is indented under subclass 314. Subject matter
wherein (a) the contained charge is one used to detonate
another blasting explosive which is incapable of detonation
by the usual means, or (b) a first explosive charge is
combined with a second explosive charge used to detonate the
first charge where the first or the second charge is within a
container.
(1) Note. A fuse, detonator cap, or detonator cord is not
considered a booster charge for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275.4 for fuse cords interconnected with a booster charge
containing connector.
275.5 for a fuse cord and an explosive charge.
283 for powder forms having more than an in name structure.
317 for similar contained charges joined end to end where a
booster may be one of the charges.
320 for plural explosives.
322 for a blasting charge with a primer or an igniter to set
off the charge.
332 for booster or other charges which are not contained and
have overall structural shape or form.
Subclass:
319
With well-anchoring means, wall-contacting guides, or
buffers:
This subclass is indented under subclass 314. Subject matter
which includes means to (a) support the explosive in a fixed
location along the wall of a well, (b) to cushion the contact
between the explosive and the wall in its movement, or (c)
center the explosive in the borehole.
(1) Note. The anchor, buffer, or centering subcombination is
placed here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
313 for placing or inserting an explosive in a borehole.
Subclass:
320
Having plural charges:
This subclass is indented under subclass 314. Subject matter
wherein there are more than one contained blasting charge.
(1) Note. Here are plural explosive charges separately
contained in a common unit and plural contained blasting
charges joined together, but not similar contained charges
joined end to end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
310 for plural charges, at least one being a shaped charge.
311 for explosive means at plural locations including plural
boreholes.
313 for the placing or inserting of explosives in a
hollowed-out place.
317 for similar contained charges joined end to end.
318 for a booster and a main explosive charge.
332 for plural charges not contained.
Subclass:
321
With support means:
This subclass is indented under subclass 314. Subject matter
which includes some structure to hold the blasting cartridge
against the force of gravity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
313 for means to place or insert a charge in a wellbore.
317 for supports to join similar contained charges end to
end.
319 for charge-anchoring means in a wellbore.
SEE OR SEARCH CLASS:
220, Receptacles, subclasses 752+ for a container handle.
248, Supports, subclasses 683+ for article-carried
supports.
Subclass:
322
With primer or ignitor:
This subclass is indented under subclass 314. Subject matter
wherein the contained blasting charge has means coupled to
ignite or detonate the contained explosive.
(1) Note. A primer detonates to set off an explosive charge
and in ignitor burns but does not detonate to set off a
charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.1 for accidental fuse ignition prevention means.
202.5 for electric primers or ignitors to set off a blasting
charge.
204 for percussion primers or ignitors.
275.1 for fuse cords, per se, or with igniting means or with
a primer.
275.9 for fuses.
subclasses 305+ for detonation wave modifying for a
contained charge and a primer or ignitor to set off the
charge.
subclasses 311+ for a blasting charge and a primer or
ignitor at each of several locations.
313 for means to insert or place an explosive and a primer
or ignitor for the charge in a hollowed-out place.
332 for a blasting charge and a primer or ignitor for the
charge.
SEE OR SEARCH CLASS:
44, Fuel and Related Compositions, subclasses 507+ for
matches.
86, Ammunition and Explosive-Charge Making, subclass 20 for
placing, tamping, and priming charges into a blast hole.
361, Electricity: Electrical Systems and Devices, subclasses
248+ for electrical igniting systems for explosives.
Subclass:
323
Having a rupturable or expandable casing:
This subclass is indented under subclass 314. Subject matter
wherein (a) the container is designed to change its volume,
or (b) the container is serrated to cause the container to
rupture at the serrations when the container is tamped in a
shot hole.
SEE OR SEARCH THIS CLASS, SUBCLASS:
324 for a flexible tube or bag container. 331, for a
blasting charge case.
SEE OR SEARCH CLASS:
383, Flexible Bags, appropriate subclasses for a flexible
bag.
428, Stock Material or Miscellaneous Articles, subclass 34.1
for a hollow or container-type article.
Subclass:
324
Having a flexible tube or bag container:
This subclass is indented under subclass 314. Subject matter
wherein the container comprises a pliable hollow
cylinder-like body having one or more open ends and means to
close the open one or both ends to hold the explosive within
the container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for propellent powder containers.
323 for a contained charge having a flexible rupturable or
expansible tube or bag-type casing.
331 for blasting charge cases.
530 for jacketed or cartridge gas generator power sources
for blank cartridges, shells, and gas-powered tools or
devices.
SEE OR SEARCH CLASS:
138, Pipes and Tubular Conduits, subclass 118 for flexible
hollow cylinders.
383, Flexible Bags, appropriate subclasses for a flexible
bag.
428, Stock Material or Miscellaneous Articles, subclass 34.1
for hollow or container-type articles.
Subclass:
325
Contained pressurized fluid blasting charge:
This subclass is indented under subclass 301. Subject matter
which includes a high pressure resistant container and a
contained high pressure nondetonatable fluid which when
suddenly released from the container, acts as a physical
force to break up material.
(1) Note. Subcombinations of a nondetonating fluid blast
cartridges are placed with the combination.
(2) Note. An inlet to the chamber is necessary to charge the
chamber in order to have the gas or liquid within the
chamber, but generally this inlet is not claimed.
(3) Note. Here are patents wherein a gas or liquid under
pressure bursts the container to release the high pressure
gas or liquid to a shot hole in which it is placed.
(4) Note. The term "fluid" includes gas and liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 311+ for patterned blasting involving plural
separate locations including plural borehole arrangements.
313 for placing or inserting a contained pressurized fluid
blasting charge in a borehole.
SEE OR SEARCH CLASS:
220, Receptacles, subclasses 581+ for a high-pressure-gas
tank.
Subclass:
326
Fluid generated within container:
This subclass is indented under subclass 325. Subject matter
wherein the container has within it a reactable chemical or
chemicals which form the blasting fluid as a result of a
chemical reaction.
(1) Note. Means to cause heat necessary to start the
chemical reaction to form the blasting medium may or may not
be claimed.
(2) Note. The "reactable chemical" can be a heat
decomposable substance.
(3) Note. See subclass 327 where heat is utilized to cause
fluid to increase the pressure of the gas to allow the escape
of the pressurized blasting medium suddenly from the
container.
SEE OR SEARCH CLASS:
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 166 for
chemical reaction apparatus for solid reactants.
Subclass:
327
Fluid heated within container:
This subclass is indented under subclass 325. Subject matter
wherein there is some means to cause the fluid within the
chamber to raise the temperature of the contained blasting
fluid.
(1) Note. Since the volume of the container is fixed, as the
temperature of the blasting medium increases, the pressure of
the blasting medium increases.
SEE OR SEARCH CLASS:
219, Electric Heating, subclasses 280+ for fluid heaters.
Subclass:
328
Contained fluid exit seal controlled by fluid pressure:
This subclass is indented under subclass 325. Subject matter
wherein the container has an outlet for the fluid in the
container and a closure to seal the outlet to keep the fluid
in the container and to open the seal as a result of the
fluid pressure itself reaching a predetermined pressure to
allow the fluid to exit suddenly from the container through
the outlet.
(1) Note. An inlet into the container to charge the
container with fluid may or may not be claimed. Also the
means to charge the container with high pressure fluid
through the inlet may or may not be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
326 for fluid generated chemically within the container and
having an exit seal.
327 for fluid heated within the container and having an exit
seal.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 797 for frangible seals.
Subclass:
329
Valve-type seal:
This subclass is indented under subclass 328. Subject matter
wherein the closure for the outlet of the container is a
valve.
(1) Note. Here are outlet valves operated by a difference
between the pressure of the blasting fluid within the
container and atmospheric pressure when the container is
vented to the atmosphere by some type of manually operated
value.
SEE OR SEARCH CLASS:
251, Valves and Valve Actuation, subclasses 12+ for fluid
actuated valves.
Subclass:
330
Automatically operated:
This subclass is indented under subclass 329. Subject matter
wherein the valve is operated without human intervention as a
result of the pressure in the container reaching a preset
valve.
SEE OR SEARCH CLASS:
251, Valves and Valve Actuation, subclasses 12+ for fluid
actuated valves.
Subclass:
331
Blasting charge case:
This subclass is indented under subclass 301. Subject matter
which includes a container or casing, per se, for an
explosive chemical charge.
(1) Note. Casings for rifle, revolver, pistol, artillery
field piece ammunition, or rocket missiles are not in this
subclass.
(2) Note. Here are casings for explosive demolition work
whether military or commercial.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for containers to hold gun powder for firing shells.
subclasses 325+ for cases with a pressurized nondetonatable
blasting fluid.
subclasses 431+ for combustible or destructible cartridge
cases.
subclasses 449+ for shot-type cartridge containers.
subclasses 464+ for cartridge cases.
subclasses 530+ for jacketed or cartridge-type gas
generator sources, particularly subclass 530 for blank gun
cartridges.
SEE OR SEARCH CLASS:
73, Measuring and Testing, subclass 35.17 for a safety
feature or a containment structure detail for use while
testing an explosive.
220, Receptacles, appropriate subclasses.
383, Flexible Bags, appropriate subclasses for a flexible
bag.
428, Stock Material or Miscellaneous Articles, subclass 542.8
and 577+ for an article of intermediate shape.
Subclass:
332
Blasting charge:
This subclass is indented under subclass 301. Subject matter
which includes blasting chemical compounds or elements which
have some unitary overall structural shape or form.
(1) Note. Here are chemicals forming explosives having a
definite form and have a coating around them.
(2) Note. Booster or main charges are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
317 for contained blasting charges joined end to end.
318 for a contained booster charge or a blasting charge with
a booster charge detonator, one being contained.
320 for plural blasting explosives, one being contained.
322 for a contained blasting charge with an ignitor or
primer to set off the charge.
SEE OR SEARCH CLASS:
149, Explosive and Thermic Compositions or Charges,
subclasses 2+ for structure or arrangement of a component
or product which is an explosive or thermic chemical. See the
general notes and subclasses 2+ notes of Class 149.
Subclass:
333
Plug:
This subclass is indented under subclass 301. Subject matter
which includes means to seal a blast hole opening to confine
an explosion or the rapid escape of a fluid under high
pressure in a blast hole.
SEE OR SEARCH THIS CLASS, SUBCLASS:
313 for inserting or placing an explosive in a hollowed-out
place which includes plugs.
319 for well-anchoring means with or without an explosive.
SEE OR SEARCH CLASS:
166, Wells, subclasses 192+ for well plugs generally.
Subclass:
334
SMOKE GENERATING:
This subclass is indented under the class definition.
Apparatus and corresponding methods for causing vapor, cloud,
etc., to be formed by a burning.
(1) Note. The smoke is used for signaling, cover, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 for pyrotechnics means.
363 for fuel air explosive means.
subclasses 364+ for incendiary means.
subclasses 367+ for gas or mist dispersing means.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 1+ for continuous gas or vapor phase
colloid system (e.g., smoke, fog, aerosol, cloud, mist) or
agents for such systems or making or stabilizing such systems
or agents, when generically claimed or when there is no
hierarchically superior provision in the USPC for the
specifically claimed art.
Subclass:
335
PYROTECHNICS:
This subclass is indented under the class definition.
Apparatus and corresponding methods having a mixture of
oxidant and reluctant designed to produce light, heat and/or
noise, e.g., fireworks display, amusement, flash photo,
signal, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for smoke generating means.
363 for fuel air explosive means.
subclasses 364+ for incendiary means.
subclasses 367+ for gas or mist dispersing means.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 487 for railway
signaling torpedos.
431, Combustion, subclass 1 for combustion bursts or
flare-ups on nonthermic fuel in pulses or serial pattern.
Subclass:
336
Flare:
This subclass is indented under subclass 335. Subject matter
having means to burn for an appreciable time, e.g., for
signaling or to illuminate an area.
(1) Note. Flares which also produce infrared rays or heat
are included in this and indented subclasses.
(2) Note. Means which just make a flash of light for display
or sound are not included, but a flash using powder for
taking a picture is included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for a smoke generating means with a flare.
513 for target marking by tracing a light on a projectile.
SEE OR SEARCH CLASS:
431, Combustion, subclasses 357+ for a rechargable
illuminating flash-type burner or a fuel-type photos:graphic
flash bulb.
Subclass:
337
With parachute:
This subclass is indented under subclass 336. Subject matter
including an umbrella of such area that its resistance to
motion through the air will cause an object attached to it to
be lowered slowly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354 for a pyrotechnic means with a parachute, and see the
search notes.
Subclass:
338
Multiple flares:
This subclass is indented under subclass 337. Subject matter
having more than one flare.
SEE OR SEARCH THIS CLASS, SUBCLASS:
345 for plural successively ignited flares, and see the
search notes.
Subclass:
339
Plural or vane-type parachutes or means to restrain complete
initial parachute opening:
This subclass is indented under subclass 337. Subject matter
having more than one umbrella means and/or a vane-type
umbrella means and/or means to prevent an umbrella means from
forming its complete shape for a period of time.
Subclass:
340
With means to eject parachute or flare from casing:
This subclass is indented under subclass 337. Subject matter
including means to drive out a parachute and/or flare from a
container without destroying the container.
(1) Note. The parachute and flare may remain connected to
the casing or be completely separated from it.
(2) Note. For means which burst the casing, release casing
sections so that they separate to expose the parachute and/or
flare, or which pull the parts from a casing, (as
distinguished from ejecting same) see subclass 337 or other
appropriate indented subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
357 for pyrotechnic means including means to eject an object
from a casing, and see the search notes.
Subclass:
341
Marine type:
This subclass is indented under subclass 336. Subject matter
wherein the flare is constructed so it will float on water or
can be ignited under water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
390 for a marine-type drop bomb, and see the search notes.
SEE OR SEARCH CLASS:
441, Buoys, Rafts, and Aquatic Devices, subclasses 13+ for
illuminating means with a floating support.
Subclass:
342
With means to eject flare from casing:
This subclass is indented under subclass 336. Subject matter
including means to drive out the flare from a container
without destroying the container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
357 for means to eject an object from a casing, and see the
search notes.
Subclass:
343
With support means:
This subclass is indented under subclass 336. Subject matter
including means to carry or bear the weight of, to keep from
falling, to hold up, etc., a container for holding the
flare.
SEE OR SEARCH THIS CLASS, SUBCLASS:
358 for a pyrotechnic support means.
Subclass:
344
Spike form:
This subclass is indented under subclass 343. Subject matter
wherein the support is a long rodlike means with a pointed
end for penetrating the ground, wood, etc.
Subclass:
345
With plural, successively ignited flares:
This subclass is indented under subclass 336. Subject matter
having more than one flare and means for igniting them one
after another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
360 for other plural pyrotechnic means successively ignited
charges, and see the search notes.
Subclass:
346
Gun-type cartridge:
This subclass is indented under subclass 335. Subject matter
having means, e.g., case, container, etc, for containing
pyrotechnic means and ignition means and adapted to be fired
in a gun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
430 for cartridges with a projectile.
Subclass:
347
Rocket:
This subclass is indented under subclass 335. Subject matter
having a combustible propellent reaction motor and a payload
or a combustible propellent reaction motor including a
supporting stick or launcher secured to a casing for
initially positioning the rocket when it is fired.
(1) Note. The payload is limited to (a) a pyrotechnic means,
(b) a toy novelty, e.g., toy figure and parachute, (c) a
parachute to aid in the lowering of a skyrocket or payload to
the earth, (d) a substantially cone-shaped surface for (1)
providing the skyrocket with a forward streamlined
aerodynamic surface, or (2) providing a container for the
other payload set forth above, or (e) payload such as chaff.
(2) Note. The supporting stick or launcher must be launched
and remain with the skyrocket for at least a substantial
portion of the flight of the rocket.
SEE OR SEARCH THIS CLASS, SUBCLASS:
373 for a missile including an external propellent charge.
374 for a missile having a reaction motor and a payload.
504 for a projectile carrying a line or filamentary
material, e.g., chaff.
SEE OR SEARCH CLASS:
60, Power Plants, subclasses 253+ for solid propellent
reaction motors.
89, Ordnance, subclass 1.8 for the combination of a
skyrocket and a launcher which remains at the launching area
or is separated at substantially the same time the rocket is
launched.
446, Amusement Devices: Toys, subclass 52 for a parachute
release from a nonpyrotechnical rocket.
Subclass:
348
With vane, wings, parachute, or balloon:
This subclass is indented under subclass 347. Subject matter
including means for sustaining flight of the rocket or means
to lower the rocket slowly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354 for other pyrotechnic means with a parachute or a
balloon.
SEE OR SEARCH CLASS:
244, Aeronautics, subclass 3.23 and 3.24+ for a missile
stabilized by rotation or an externally mounted stabilizing
fin.
446, Amusement Devices: Toys, subclass 52 for a parachute
released from a nonpyrotechnical rocket.
Subclass:
349
With support means:
This subclass is indented under subclass 347. Subject matter
including means to carry or bear the weight of, to keep from
falling, to hold up, etc., a container for holding the rocket
before flight.
(1) Note. The support can be carried with the rocket in
flight and is sometimes disclosed as stabilizing the flight
thereof or effecting its trajectory.
SEE OR SEARCH THIS CLASS, SUBCLASS:
358 for other pyrotechnic support means.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 1.8 for rocket launching support
usable repeatedly for launching warfare or pyrotechnic
rockets.
Subclass:
350
With means to rotate by gas discharge:
This subclass is indented under subclass 347. Subject matter
including means which cause the rocket to turn about an axis
during flight by the gas which comes from the interior of the
rocket.
SEE OR SEARCH THIS CLASS, SUBCLASS:
348 for vanes which cause a rocket to rotate.
SEE OR SEARCH CLASS:
60, Power Plants, subclass 201 for a reaction motor arranged
to turn continuously about an axis for stabilization in
flight.
244, Aeronautics, subclass 3.23 for a missile stabilized by
rotation.
Subclass:
351
With means to eject object from casing:
This subclass is indented under subclass 347. Subject matter
including means to drive out an article, charge, etc., from a
container without destroying the container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
357 for other pyrotechnic means or object ejected from a
casing, and see the search notes.
Subclass:
352
Including plural, successively ignited charges:
This subclass is indented under subclass 347. Subject matter
having more than one charge and means for igniting them one
after another.
(1) Note. The rocket fuel may be one of the charges.
SEE OR SEARCH THIS CLASS, SUBCLASS:
360 for other plural pyrotechnic means successively ignited,
and see the search notes.
Subclass:
353
Toy torpedoe:
This subclass is indented under subclass 335. Subject matter
having means adapted to be thrown by hand and explode upon
impact or to explode when pressure is applied for
noise-making.
SEE OR SEARCH THIS CLASS, SUBCLASS:
441 for a projectile and explosive cap.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 487 for signal
torpedoes.
Subclass:
354
With parachute or balloon:
This subclass is indented under subclass 335. Subject matter
having an umbrella or inflatable bag of such area that their
resistance to motion through the air will cause an object
attached to it to be lowered slowly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
387 for a drop bomb with a parachute, and see notes for
other areas of search.
Subclass:
355
Simulation:
This subclass is indented under subclass 335. Subject matter
having a shape other than a firecracker.
(1) Note. For example, a device that simulates a pine cone,
a house that is destroyed, tent, figure toy, etc.
SEE OR SEARCH CLASS:
446, Amusement Devices: Toys, appropriate subclasses for a
toy made in simulation of another thing.
Subclass:
356
Combined:
This subclass is indented under subclass 335. Subject matter
to which has been added other devices or structures having an
added purpose or independent utility other than to perfect a
pyrotechnic means.
Subclass:
357
With means to eject an object from a casing:
This subclass is indented under subclass 335. Subject matter
including means to drive out an article, charge, etc., from a
container without destroying the container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for smoke means ejected from a casing.
subclasses 337+ for parachute ejected from a casing.
342 for flare means ejected from a casing.
351 for an object ejected from a casing including rocket
means.
404 for a pop-up type mine.
Subclass:
358
With support means:
This subclass is indented under subclass 335. Subject matter
including means to carry or bear the weight of, to keep from
falling, to hold up, etc., a container for holding the
pyrotechnic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 343+ for a flare with support means.
486 for grenades with throwing handle, handgrip, or strand.
Subclass:
359
Wheel, rotor, or whirler:
This subclass is indented under subclass 358. Subject matter
wherein the support has means to allow the pyrotechnic means
to turn or spin.
SEE OR SEARCH CLASS:
446, Amusement Devices: Toys, subclasses 236+ for a
nonpyrotechnical spinning or whirling toys.
Subclass:
360
With plural, successively ignited charges:
This subclass is indented under subclass 335. Subject matter
having more than one charge which are ignited one after
another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 314+ for well torpedoes involving plural
explosive charges.
338 for multiple parachute flares.
345 for flares with plural successively ignited charges.
352 for pyrotechnic rockets with plural successively ignited
charges.
355 for successively ignited charges associated with
simulations.
357 for plural successively ignited charges, one of which
functions to eject an article or material from a casing, and
see the notes thereto for other art of this type.
subclasses 358+ for successively ignited charges associated
with a holder or support.
393 for cluster-type drop bombs.
394 for rebounding or multiple bursting charges.
subclasses 409+ for fields or groups of marine type mines.
subclasses 431+ for combustible, destructible, or caseless
cartridges.
443 for cartridges with divided propelling charge.
478 for shells with divided bursting charge.
Subclass:
361
Firecracker:
This subclass is indented under subclass 335. Subject matter
having means for making a sharp noise and/or a flash of
light, e.g., for signal purpose, amusement, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
530 for a blank cartridge.
Subclass:
362
HAVING GROUND PROPULSION MEANS:
This subclass is indented under the class definition.
Apparatus and corresponding methods for moving an explosive
along or under the surface of the soil of the earth.
SEE OR SEARCH CLASS:
114, Ships, subclass 20 for self-propelled explosive devices
for traveling on or under the surface of water.
244, Aeronautics, subclass 3.1 for air-sustained,
self-propelled aerial missiles; and subclass 14 for aerial
torpedoes.
Subclass:
363
FUEL AIR EXPLOSIVE:
This subclass is indented under the class definition.
Apparatus and corresponding methods to produce an explosive
gas or vapor cloud that is subsequently ignited.
Subclass:
364
INCENDIARY:
This subclass is indented under the class definition.
Apparatus and corresponding methods having material that will
ignite to cause a fire.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for smoke generating means.
subclasses 335+ for pyrotechnics means.
363 for fuel air explosive means.
367 for antipersonnel gas means.
Subclass:
365
Liquid or jelly:
This subclass is indented under subclass 364. Subject matter
wherein the incendiary means is a liquid or is in a semisolid
state.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 98+ for colloid systems of
continuous or semicontinuous solid phase with discontinuous
liquid phase (gels, pastes, flocs, coagulates) or agents for
such systems or making or stabilizing such systems or agents,
when generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art
Subclass:
366
OIL DISTRIBUTING:
This subclass is indented under the class definition.
Apparatus and corresponding methods to contain oil and
release it by an explosion on the surface of water or just
below the water surface.
(1) Note. The purpose is usually for calming of waves.
SEE OR SEARCH THIS CLASS, SUBCLASS:
367 for means containing gas which may be in a liquid form
to be distributed and see notes for other place of
distributing liquids.
Subclass:
367
GAS OR MIST DISPERSING:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein an explosion
causes a liquid, solid, or gas to be scattered or spread
about in the form of a vapor, particles, or gas.
(1) Note. The gas or mist can be dispersed in air or water.
(2) Note. Gas or mist dispersing by an explosion are
antipersonnel, e.g., noxious or incapacitating, plant,
insect, animal, foliage, BW/CW, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for smoke generating and dispersing means.
363 for fuel air explosive means.
subclasses 364+ for incendiary dispersing means.
366 for oil distributing means on water.
subclasses 530+ for a cartridge gas generator means.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 1+ for continuous gas or vapor phase
colloid system (e.g., smoke, fog, aerosol, cloud, mist) or
agents for such systems or making or stabilizing such systems
or agents, when generically claimed or when there is no
hierarchically superior provision in the USPC for the
specifically claimed art.
Subclass:
368
Grenade:
This subclass is indented under subclass 367. Subject matter
wherein the gas or mist is contained in a case or container
which has an explosion means to cause the gas or mist to be
dispersed from it and the case or container is to be thrown
by hand or by a mechanical throwing means or projected from
the end of a gun barrel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for grenades of the shell type.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 1+ for continuous gas or vapor phase
colloid system (e.g., smoke, fog, aerosol, cloud, mist) or
agents for such systems or making or stabilizing such systems
or agents, when generically claimed or when there is no
hierarchically superior provision in the USPC for the
specifically claimed art.
Subclass:
369
Drop bomb:
This subclass is indented under subclass 367. Subject matter
wherein the gas or mist is contained in a case or container
with an explosive means to cause the gas or mist to be
dispersed from it and in use the case or container falls
without the use of force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 382+ for drop bombs of general use.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 1+ for continuous gas or vapor phase
colloid system (e.g., smoke, fog, aerosol, cloud, mist) or
agents for such systems or making or stabilizing such systems
or agents, when generically claimed or when there is no
hierarchically superior provision in the USPC for the
specifically claimed art.
Subclass:
370
Cartridge or projectile:
This subclass is indented under subclass 367. Subject matter
wherein the gas or mist is contained in a case or container
which has a charge and a primer for forcing the gas or mist
out of the case or container or a missile which contains the
gas or mist within it, e.g., shell, bullet, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 430+ for a cartridge of the ordnance type.
subclasses 501+ for a projectile of the ordnance type.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 1+ for continuous gas or vapor phase
colloid system (e.g., smoke, fog, aerosol, cloud, mist) or
agents for such systems or making or stabilizing such systems
or agents, when generically claimed or when there is no
hierarchically superior provision in the USPC for the
specifically claimed art.
Subclass:
371
BOMB LANCE:
This subclass is indented under the class definition.
Apparatus or corresponding methods wherein a missile, e.g.,
harpoon or spear, with a sharp spearhead carries an explosive
propelling charge to be exploded upon contact with an object
or carries an explosive charge to be exploded within an
object.
(1) Note. The lances are usually employed in fishing
operation.
SEE OR SEARCH CLASS:
43, Fishing, Trapping, and Vermin Destroying, subclass 6 for
harpoons or spears without explosive features.
Subclass:
372
HAVING RADIALLY DIRECTED PROPELLING HOLES:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein an aerial missile
or payload carrying or containing a propelling charge which
charge when ignited generates gases which are directed
radially and axially or omni-directionally from the
longitudinal axis of the missile.
(1) Note. The subject matter is peculiarly adapted for use
with a relatively stationary launching structure, such as a
gun barrel or cartridge case, to sufficiently enclose the
propelling charge to provide an axial propulsion force
between the missile and the relatively stationary launching
structure.
Subclass:
373
Including external propellent charge:
This subclass is indented under subclass 372. Subject matter
wherein at least a portion of the propelling charge is
outside the missile or payload structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
431 for a projectile attached to or embedded within a solid
propellent form or a projectile attached to a combustible
cartridge.
Subclass:
374
HAVING REACTION MOTOR:
This subclass is indented under the class definition.
Apparatus and corresponding methods having a missile and/or
payload and an attached reaction motor for propelling the
missile and/or payload through the atmosphere.
(1) Note. While the nominal recitation of the subject matter
of this class does not ordinarily cause classification in
this subclass, for example, a "missile" plus a reaction
motor, the inclusion of any missile structure, such as a
warhead, is considered basic subject matter of this class and
classified in this subclass. (See (5) Note, Class 60, Power
Plants, subclass 200.)
(2) Note. This subclass includes "missiles" under the
subclass definition with a nominally recited stabilization
means (i.e., fins). For subject matter under this definition
claimed in combination with specific trajectory or
stabilization means, see Class 244, Aeronautics, subclass 3.1
for unmanned payloads; and subclasses 75+ for manned
payloads.
(3) Note. This subclass includes an orbiting vehicle (called
a satellite or space vehicle) when claimed in combination
with a reaction motor for propelling the orbiting vehicle
through the atmosphere on its initial launch from the earth
into space, but excludes subject matter directed exclusively
to the orbiting vehicle or an orbiting vehicle claimed in
combination with a nominal reaction motor. For such orbiting
or space vehicles, see Class 244, Aeronautics, subclass 1.
(4) Note. This subclass excludes all aircraft, which are
sustained by the air. For such subject matter, see Class 244,
Aeronautics, appropriate subclasses.
(5) Note. This subclass excludes a missile disclosed for
ultimate operation in the water (i.e., a torpedo). For such
subject matter, see Class 114, Ships, subclasses 20+.
Conversely, where the missile is designed for aerial flight,
but merely launched from the water, it is included in this
subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 283+ for the particular shape or form of a solid
propellent charge.
subclasses 347+ for a pyrotechnic rocket.
SEE OR SEARCH CLASS:
60, Power Plants, subclass 200.1 and the subclasses there
noted for a reaction motor. The distinction between Class 60
and this class, subclass 374 is set forth in (2) Note above.
Subclass:
375
Pneumatically self-propelled type:
This subclass is indented under subclass 374. Subject matter
having a chamber which releases a compressed gas or means to
create a vapor under pressure and release it to propel a
projectile.
SEE OR SEARCH CLASS:
124, Mechanical Guns and Projectors, subclass 57 for a
combination of gun projector and a self-contained fluid
pressure driven projectile.
273, Amusement Devices: Games, subclasses 317+ for a toy
bullet-type projectile.
Subclass:
376
With cartridge means:
This subclass is indented under subclass 374. Subject matter
including a case for containing a propellant or charge and a
projectile containing the reaction motor.
Subclass:
377
Having separation means:
This subclass is indented under subclass 374. Subject matter
including means in or on the missile or payload to cause a
separation of one or more parts of the missile or payload
after a launch.
(1) Note. This subclass includes the means for: (a)
separating a booster motor from a sustainer motor; (b)
separating or projecting a means enclosed within the missile
from the missile; (c) severing the missile to lose
aerodynamic stability for range safety considerations, and
the like. Specially excluded as a separation means is the
explosion of the warhead. Such subject matter is classified
in this class, subclass 374.
(2) Note. This subclass includes a specific releasable joint
or connecting means, used to temporarily secure two stages of
a missile together, claimed in combination with structure of
a missile which is unique to a missile. For example, a joint
or connecting means joining two stages of a missile claimed
as having a fin, rocket motor, propellent charge,
aerodynamically shaped surface, etc., is classified in this
subclass. However, a releasable joint or connecting means
claimed in combination with a nominal missile or a joint or
connecting means claimed in combination with conventional
elements of the missile nominally recited (i.e., launcher,
booster, sustainer, nose cone, warhead, etc.) is excluded
from this class and is classified in either Class 285, Pipe
Joints or Couplings, or Class 403, Joints and Connections,
appropriate subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
340 for a parachute flare ejecting means.
351 for means to separate or eject a firework or toy from
the combustible reaction motor casing.
357 for miscellaneous firework ejecting means.
489 for separation of nested shells.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 98 for
means to sever a frangible missile casing.
60, Power Plants, subclass 225 for the separation of plural
reaction motors.
244, Aeronautics, subclass 54 for the separation of a power
plant from an aircraft; and subclasses 138+ for the
separation of a safety lowering means from an aircraft.
285, Pipe Joints or Couplings, appropriate subclasses for
releasable connections between tubular members, in general,
which may be connections between stages of a missile.
403, Joints and Connections, appropriate subclasses for
releasable connections between stages of a missile;
particularly subclasses 11+ for means facilitating
disconnection of the members.
Subclass:
378
Explosive:
This subclass is indented under subclass 377. Subject matter
wherein the separation is caused by a separate explosive
change.
(1) Note. This subclass includes an explosive charge for
severing a unitary missile casing claimed in combination with
unique missile structure. However, where no unique missile
structure is claimed this subject matter is excluded from
this subclass and classified in Class 52, Static Structures
(e.g., Buildings), subclass 98.
(2) Note. If the separation is completely caused by the
propelling charge of the missile or by such charge in
combination with other nonexplosive release means, it is
excluded from this subclass and classified in this class,
subclass 377.
Subclass:
379
Having warhead fuse or arming means:
This subclass is indented under subclass 374. Subject matter
including (a) a fuse to initiate the explosion or other
actuation of the payload of the missile, or (b) arming means
for the fuse of the missile which conditions the fuse for
operation at a predetermined time, position, or condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting device or systems.
Subclass:
380
Having propellent charge ignitor means:
This subclass is indented under subclass 374. Subject matter
including means for initiating the combustion or detonation
of the propellent charge of the reaction motor.
(1) Note. A specific ignitor claimed in combination with a
nominal missile, payload, or solid propellent form is
provided for elsewhere, see the search notes below.
(2) Note. A specific ignitor claimed in combination with a
specific propellent form and nominal missile structure is
provided for elsewhere, see the search notes below.
(3) Note. A specific ignitor claimed in combination with a
reaction motor having no significant missile or vehicle
structure is provided for elsewhere, see the search notes
below. (See (5) Note, Class 60, Power Plants, subclass 200
for examples of "significant" missile or vehicle structure.)
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or systems.
SEE OR SEARCH CLASS:
60, Power Plants, for the combination of a reaction motor
having ignition means or such combination with nominal
missile or vehicle structure. See in particular subclass 212
and 256 for a solid propellant having an ignitor means.
Subclass:
381
Having pressurization or variable control means for the
propellant:
This subclass is indented under subclass 374. Subject matter
including means for (a) the pressurization of a fluid
propelling means of the reaction motor, or (b) the variable
control or regulation of the propellent charge of the
reaction motor during the flight of the missile so that the
degree of combustion of the motor propellant or the time of
combustion of such propellant may be regulated.
(1) Note. The phrase "means for the variable control or
regulation of the propelling charge" in the definition
includes controlling or regulating: (a) the flow of a fluent
propelling charge to the combustion chamber of the reaction
motor, or (b) the feeding of a solid propellent form to the
combustion chamber of the reaction motor, or (c) the burning
surface of a solid propellent charge.
(2) Note. See (2) Note of this class, subclass 374 for the
statement of the line between this subclass and Class 60,
Power Plants.
SEE OR SEARCH CLASS:
60, Power Plants, for motors for the production of power. See
in particular subclasses 233+ for fuel flow control;
subclass 254 for solid fuel regulation or termination; and
subclass 259 for oxidizer pressurizing means.
Subclass:
382
DROP BOMBS:
This subclass is indented under the class definition.
Apparatus and corresponding methods having an explosive means
to cause damage or destroy an objective or payload and when
in use falls without the use of force.
(1) Note. The bombs are usually hurled or dropped from an
aircraft or watercraft and are detonated by a timing
mechanism or impact.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or systems which may
include only enough bomb structure for supporting them or
necessary for their operation.
subclasses 301+ for blasting means which may be dropped
into a hole.
369 for drop bomb with a gas or mist.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, subclasses 229+ for a sighting
device used in aerial bomb dropping.
89, Ordnance, subclass 1.51 for bomb, flare, and signal
dropping devices.
244, Aeronautics, subclass 3.1 for missile control or
stabilizing means; and subclass 14 for air-sustained,
self-propelled aerial torpedoes.
Subclass:
383
With laterally directed barrels:
This subclass is indented under subclass 382. Subject matter
including tubes arranged generally transversely to the axis
of the bomb and from which missiles are projected after a
predetermined period or upon impact of the bomb with its
objective.
SEE OR SEARCH THIS CLASS, SUBCLASS:
480 for a shell with laterally directed barrels.
Subclass:
384
With direction controlling means:
This subclass is indented under subclass 382. Subject matter
including means to regulate the course of descent.
(1) Note. For means, in general, for controlling steering,
see particularly Class 114, Ships, subclasses 21, 23, and 24;
and Class 244, Aeronautics.
SEE OR SEARCH CLASS:
114, Ships, subclass 21, 23, and 24 for means to control a
steering in general.
244, Aeronautics, appropriate subclasses for control means
for steering a bomb.
318, Electricity: Motive Power Systems, appropriate
subclasses for electric motor systems which can be used to
steer a drop bomb.
Subclass:
385
Fin stabilizer only:
This subclass is indented under subclass 382. Subject matter
having structure of an airfoil whose primary function is to
increase stability.
Subclass:
386
With drop-retarding means:
This subclass is indented under subclass 382. Subject matter
having means to slow the rate of descent of the bomb.
SEE OR SEARCH THIS CLASS, SUBCLASS:
348 for pyrotechnic rockets with retarding means.
354 for miscellaneous pyrotechnic means with retarding
means.
SEE OR SEARCH CLASS:
244, Aeronautics, subclasses 138+ for safety lowering
devices.
Subclass:
387
Parachute:
This subclass is indented under subclass 386. Subject matter
having an umbrella-like canopy of such area that its
resistance to motion through the air will cause an object
attached to it to be lowered slowly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 for pyrotechnics with a parachute.
subclasses 337+ for parachute flares.
405 for mines with parachutes.
SEE OR SEARCH CLASS:
244, Aeronautics, subclasses 142+ for parachute generally.
Subclass:
388
Vane or rotor:
This subclass is indented under subclass 386. Subject matter
having a fixed structure as a fin, blade, etc., or a movable
surface which causes the bomb to slow down.
Subclass:
389
Fragmentation:
This subclass is indented under subclass 382. Subject matter
wherein the bomb has a number of small missiles or fragments
which are scattered by an explosion charge of the bomb or the
bomb has scorings or other formations to render the bomb
readily fragmentable by an explosive charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 482+ for grenades which are usually of shrapnel
type.
subclasses 491+ for shrapnel shells.
Subclass:
390
Marine type:
This subclass is indented under subclass 382. Subject matter
wherein the bomb is constructed so it can be detonated
underwater.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 336+ for flare lights which float on water.
384 for marine-type drop bomb with direction control.
386 for marine-type drop bomb with drop-retarding means.
398 for nonrecocheting type of projectile.
399 for marine-type projectile.
subclasses 406+ for marine mines.
Subclass:
391
Depth regulation:
This subclass is indented under subclass 390. Subject matter
having means to control the distance a bomb goes below the
surface of the water before it explodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
396 for bomb firing means.
subclasses 412+ for mine depth regulation means.
Subclass:
392
Hydrostatic:
This subclass is indented under subclass 391. Subject matter
wherein the bomb is ignited by means responsive to the
pressure of the water at a certain depth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
414 for mine depth regulation by hydro-static pressure.
Subclass:
393
Cluster type:
This subclass is indented under subclass 382. Subject matter
wherein there are plural bombs contained within a container
or supported by structure and means to separate them while in
the air so as to cover a large area.
SEE OR SEARCH THIS CLASS, SUBCLASS:
357 for pyrotechnic means with means to eject articles or
charger.
394 for a bomb with plural bursting charges separately
encased in different parts of the bomb.
Subclass:
394
Rebounding or multiple bursting charges:
This subclass is indented under subclass 382. Subject matter
wherein a bomb has means, to cause at least a portion of it,
when it comes into contact with an object to return to the
air before exploding or more than one explosive charges.
SEE OR SEARCH THIS CLASS, SUBCLASS:
342 for a flare with means to eject flare from casing.
383 for bombs with laterally directed barrels.
404 for a pop-up mine.
Subclass:
395
Practice:
This subclass is indented under subclass 382. Subject matter
wherein the bomb is constructed for use in practice, e.g.,
has no explosive charge, a very small explosive charge, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for practice bombs with smoke signal means.
444 for a cartridge with a practice projectile, and see the
search notes.
Subclass:
396
Igniting means:
This subclass is indented under subclass 382. Subject matter
having means for initiating the combustion or detonation of
explosive or thermic composition or change.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or system for other
types of explosive means.
subclasses 416+ for marine-type igniting means.
subclasses 424+ for mine igniting means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, appropriate
subclasses for electrical igniting means.
Subclass:
397
With target contact anticipator:
This subclass is indented under subclass 396. Subject matter
including means which projects a distance for the bomb so
that when it contacts a target the firing means will actuate
before the bomb comes into contact with the target.
SEE OR SEARCH THIS CLASS, SUBCLASS:
383 for drop bombs having laterally directed barrels with
target contact anticipator.
394 for bombs which on contact project a section upward so
that it may explode above the target.
Subclass:
398
NONRICOCHETING PROJECTILE:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein a missile
hasstructure to prevent oblique rebound or skipping after
striking a surface at an angle.
SEE OR SEARCH CLASS:
244, Aeronautics, subclass 3.1 for control or stabilizing
means for propelled or thrown explosive weapons or missiles.
Subclass:
399
MARINE-TYPE PROJECTILE:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein a missile is
adapted to be projected upon or through bodies of water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 390+ for marine-type drop bomb.
398 for missiles having means to prevent ricochet from the
surface of water.
SEE OR SEARCH CLASS:
114, Ships, subclasses 20+ for self- propelled marine
torpedoes.
Subclass:
400
WITH EXTENDABLE ARMS:
This subclass is indented under the class definition.
Apparatus and corresponding methods having elements which
move outward from a missile after it has left a gun barrel.
(1) Note. The arms are for tearing out barbed wire,
detonator actuator, limit penetration, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
504 for line-carrying projectiles.
Subclass:
401
MINES:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein the explosive
means is positioned relative to the earth's surface to be
actuated by contact or proximity of a person or object.
(1) Note. Contact actuated includes pressure, impact, remote
control, etc.
(2) Note. Subcombinations specialized to mines, not provided
for elsewhere, are in this or indented subclasses.
SEE OR SEARCH CLASS:
109, Safes, Bank Protection, or a Related Device, subclasses
36+ for a mine-like explosive in combination with a safe,
bank protection means, or related means.
114, Ships, subclasses 20+ for marine torpedoes having
self-propulsion means.
169, Fire Extinguishers, subclass 28 for an explosive-type
fire extinguishing receptacle.
246, Railway Switches and Signals, subclass 487 for railway
torpedoes.
Subclass:
402
Counter measure:
This subclass is indented under subclass 401. Subject matter
having means to permit passage of an object without
detonation of the mine or means to explode a mine before an
object, e.g., ship, tank, etc., is damaged by the mine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
293 for a mine arming means.
Subclass:
403
By explosion:
This subclass is indented under subclass 402. Subject matter
wherein the means to explode the mine is chemical reaction
producing a violent expansion of the substance involved which
is exterior of the mine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 301+ for blasting means.
Subclass:
404
Pop-up type:
This subclass is indented under subclass 401. Subject matter
wherein the mine is below a surface and has means to cause it
to raise above the surface when actuated by an object or
person.
Subclass:
405
Aerial type:
This subclass is indented under subclass 401. Subject matter
having means to sustain the mine in the air, e.g., balloon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354 for pyrotechnic with a parachute or balloon, and see the
search notes.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 36.16 for balloon barrages having no
explosive means.
244, Aeronautics, subclass 14 for air-sustained,
self-propelled aerial torpedoes.
Subclass:
406
Marine type:
This subclass is indented under subclass 401. Subject matter
wherein the mine is constructed so it can be used in water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 390+ for marine-type drop bomb, and see the
search notes.
SEE OR SEARCH CLASS:
114, Ships, subclasses 20+ for marine torpedoes with
self-propulsion means.
Subclass:
407
Practice (e.g., drill):
This subclass is indented under subclass 406. Subject matter
wherein the mine is constructed for use in practice, e.g.,
has no explosive charge, a very small explosive charge,
reusable, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
444 for a cartridge with a practice projectile, and see the
search notes.
Subclass:
408
Flooder means:
This subclass is indented under subclass 406. Subject matter
which has means that will allow water to enter the mine to
deactivate it.
(1) Note. A plug for allowing flooding is proper for this
subclass.
Subclass:
409
Field or group:
This subclass is indented under subclass 406. Subject matter
wherein mines are placed in a certain area either randomly or
a set pattern and/or means for selectively firing them.
Subclass:
410
With manipulating means:
This subclass is indented under subclass 409. Subject matter
including means to control the movement or orientation of the
mines.
SEE OR SEARCH THIS CLASS, SUBCLASS:
411 for means to manipulate a single mine.
Subclass:
411
Laying, anchoring, or manipulating:
This subclass is indented under subclass 406. Subject matter
having means for placing or putting the mine in a particular
place and/or means for holding or keeping the mine in a
particular place and/or means to control the movement or
orientation of the mine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
410 for means to manipulate a field or group of mines.
Subclass:
412
Depth regulation:
This subclass is indented under subclass 411. Subject matter
having means to hold or keep the mine at a certain distance
below the surface of the water or above the bottom surface of
the water.
SEE OR SEARCH CLASS:
114, Ships, subclass 25 for marine torpedoes having depth
regulating means.
Subclass:
413
Anchor cable length:
This subclass is indented under subclass 412. Subject matter
wherein the depth of the mine is controlled by adjusting the
length of a rope, chain, etc., between the mine and an
anchoring means.
Subclass:
414
Hydrostatic pressure:
This subclass is indented under subclass 412. Subject matter
wherein the depth of the mine is controlled by means
responsive to the pressure of the water at a certain depth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
392 for drop marine bomb with hydrostatic ignition means.
Subclass:
415
Antisweep anchorage:
This subclass is indented under subclass 411. Subject matter
having means for resisting or preventing the mine from moving
from a position where it is placed.
Subclass:
416
Igniting means:
This subclass is indented under subclass 406. Subject matter
having means for initiating the combustion or detonation of
explosive or thermic composition or charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or systems for other
types of explosive means.
subclasses 396+ for drop bomb igniting means.
subclasses 424+ for mine igniting means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, appropriate
subclasses for electrical igniting means.
Subclass:
417
Magnetic:
This subclass is indented under subclass 416. Subject matter
wherein a firing means is actuated by varying a magnetic
field or magnetic properties.
Subclass:
418
Wave responsive:
This subclass is indented under subclass 416. Subject matter
wherein an ignition means is actuated by a vibrational
disturbance propagated in a medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 211+ for ignition means actuated by wave for
general use.
Subclass:
419
Electrical:
This subclass is indented under subclass 416. Subject matter
comprising an electrical circuit or component (s) of an
electrical circuit to supply electrical energy to the
igniting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 206+ for ignition for detonation circuit of
general use.
Subclass:
420
Including arming means:
This subclass is indented under subclass 419. Subject matter
having means selectively rendering the igniting means or
system capable of igniting an explosive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 221+ for arming devices of general use.
Subclass:
421
Contact type:
This subclass is indented under subclass 419. Subject matter
wherein the igniting means is actuated by means touching or
meeting a portion of a mine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
422 for nonelectric contact type actuating means.
Subclass:
422
Contact type:
This subclass is indented under subclass 416. Subject matter
wherein the igniting means is actuated by means touching or
meeting a portion of a mine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
421 for an electrical contact-type actuator.
Subclass:
423
Extending firing means:
This subclass is indented under subclass 422. Subject matter
including means protruding from a mine surface which when
contacted actuate the igniting means.
Subclass:
424
Igniting means:
This subclass is indented under subclass 401. Subject matter
for initiating the combustion or detonation of explosive or
thermic compositions or charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or systems for other
types of explosive means.
subclasses 396+ for drop bomb igniting means.
subclasses 416+ for marine-type igniting means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, appropriate
subclasses for electrical igniting means.
Subclass:
425
With position sensing means:
This subclass is indented under subclass 424. Subject matter
including means which senses the position of the mine and
arms the igniting means when the mine is placed in an area
where it is to be exploded.
Subclass:
426
Automatic deactivation or self-destruction:
This subclass is indented under subclass 424. Subject matter
wherein the mine igniting means is rendered inactive after a
period of time or the mine is activated causing it to be
demolished, breakup, etc.
Subclass:
427
Electrical, magnetic, wave, or radiant energy actuated:
This subclass is indented under subclass 424. Subject matter
wherein an electrical circuit or current, a magnetic field, a
wave force, or radiant energy will cause ignition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 419+ for marine-type electric igniting means.
Subclass:
428
Pressure actuated:
This subclass is indented under subclass 424. Subject matter
wherein a compression, squeezing, etc., force acting downward
on the ignitor will cause ignitions.
Subclass:
429
Spring biased:
This subclass is indented under subclass 428. Subject matter
wherein the pressure causes a spring which is held under
compression to be released and actuate an ignitor.
Subclass:
430
CARTRIDGE:
This subclass is indented under the class definition.
Apparatus and corresponding methods having means, e.g., case,
for containing a propellant or charge, a primer and a
projectile or payload.
(1) Note. This and indented subclasses includes
subcombinations specialized to cartridges not provided for
elsewhere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 283+ for explosive or deflagrating chemically
reactive powder forms.
subclasses 314+ for contained blasting charges.
370 for noxious gas cartridges.
subclasses 530+ for gas generator cartridges.
Subclass:
431
Combustible, destructible, or caseless:
This subclass is indented under subclass 430. Subject matter
wherein the cartridge is formed by molding a propellant to a
projectile in such a way that it has sufficient strength to
be handled or a material used to hold a propellant is easily
burned or destroyed.
Subclass:
432
Expendable cartridge:
This subclass is indented under subclass 431. Subject matter
wherein the cartridge is so constructed that it can be
propelled through a gun barrel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
449 for a shot container which can be propelled through a
gun barrel.
Subclass:
433
Telescoping powder charge:
This subclass is indented under subclass 431. Subject matter
wherein the means to propel a projectile covers the side (s)
of the projectile but the top is left open.
SEE OR SEARCH THIS CLASS, SUBCLASS:
434 for a telescoping power charge in a cartridge.
Subclass:
434
Telescoping powder charge:
This subclass is indented under subclass 430. Subject matter
wherein the means to propel a projectile covers the sides (s)
of the projectile but the top is left open.
SEE OR SEARCH THIS CLASS, SUBCLASS:
433 for a telescoping powder charge with a combustible,
destructible, or caseless cartridge.
Subclass:
435
Wear reducing additive for barrel:
This subclass is indented under subclass 430. Subject matter
wherein means are added to the explosive material to prevent
a barrel from becoming oversized when a projectile passes
through it, e.g., reduce erosion.
Subclass:
436
Noncircular projectile or cartridge:
This subclass is indented under subclass 430. Subject matter
wherein the shape of a projectile is such that when an
imaginary cut is taken through a plane perpendicular to the
longitudinal axis of the projectile, the outer surface does
not form a continuous curved path.
Subclass:
437
Recoilless:
This subclass is indented under subclass 430. Subject matter
wherein the cartridge is constructed to be used in a
recoilless gun.
Subclass:
438
Multiple projectiles:
This subclass is indented under subclass 430. Subject matter
wherein the cartridge is constructed so it will fire a group
of missiles.
(1) Note. The missiles are larger than pellets or shot for a
shot-shell.
SEE OR SEARCH THIS CLASS, SUBCLASS:
448 for pellets shot from a shotgun cartridge.
Subclass:
439
Projectile structure:
This subclass is indented under subclass 430. Subject matter
having details of a projectile.
SEE OR SEARCH THIS CLASS, SUBCLASS:
436 for projectile noncircular in shape.
Subclass:
440
Having liquid/gas propellent means:
This subclass is indented under subclass 430. Subject matter
wherein the force that causes a projectile to move is a
combination of a liquid and gas.
Subclass:
441
With projectile and explosive cap:
This subclass is indented under subclass 430. Subject matter
including a missile to be propelled through the air and the
missile has an explosive packet or container within it to
produce a noise.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281 for explosive caps for toy guns. 353, for a toy
torpedo.
Subclass:
442
With bore cleaning means:
This subclass is indented under subclass 430. Subject matter
including means to remove dirt, impurities, etc., from the
bore of a gun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
511 for a projectile with lubricating means for lubricating
the bore of a gun.
529 for a projectile with cleaning means for cleaning the
bore of a gun.
Subclass:
443
Having divided propelling charge:
This subclass is indented under subclass 430. Subject matter
wherein the propelling charge is separated into compartments
or portions so that the rate of propagation of the explosion
is regulated.
(1) Note. The compartments or portions are usually for the
purpose of controlling the rate of acceleration of the
projectile.
SEE OR SEARCH THIS CLASS, SUBCLASS:
478 for shells having divided explosive charges.
Subclass:
444
Practice projectile type:
This subclass is indented under subclass 430. Subject matter
wherein the projectile is constructed for use in practice,
e.g., short range target work, etc.
(1) Note. Included here are means to allow a projectile to
move but not to leave the cartridge or barrel of a gun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
498 for a shell projectile used in practice.
502 for cartridges with practice projectile.
529 for a projectile used in practice.
Subclass:
445
Mortar:
This subclass is indented under subclass 444. Subject matter
wherein the projectile has fin-stabilizing means on it and is
for use in a smooth bore gun.
Subclass:
446
Cartridge adapter:
This subclass is indented under subclass 444. Subject matter
having means to make a projectile fit a cartridge in which
the opening is larger than the projectile.
Subclass:
447
Reduced charged:
This subclass is indented under subclass 444. Subject matter
wherein a charge smaller than what would be use to propel a
projectile in a normal cartridge is used, e.g., primer charge
only, etc.
Subclass:
448
Shot:
This subclass is indented under subclass 430. Subject matter
wherein the cartridge is constructed so it will fire a group
of pellets, e.g., shotgun cartridges.
(1) Note. The indented subclasses include subcombination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
432 for pellets in an expandable casing.
438 for multiple projectile other than pellet type.
Subclass:
449
Shot container:
This subclass is indented under subclass 448. Subject matter
having means for holding a group of pellets within a shot
cartridge.
(1) Note. The shot container leaves the shot cartridge where
fired and allows the pellets to leave the shot container
after it leaves the barrel of a gun.
(2) Note. This subclass and indents include a shot cartridge
case plus additional protecting means for a shot cartridge
case, per se, see subclasses 464+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
432 for an expendable cartridge which may contain pellets.
subclasses 464+ for shot cartridge case, per se.
Subclass:
450
Collapsible wad:
This subclass is indented under subclass 449. Subject matter
wherein a plug, packing, etc., is used as a spacer, seal,
cushion, etc., in a shot container and is so constructed that
it will cave-in, breakdown, etc., when the cartridge is
fired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
461 for a collapsible wad used in a shot cartridge.
532 for wads not provided for here.
Subclass:
451
Integral wad:
This subclass is indented under subclass 450. Subject matter
wherein the wad is formed as part of the shot container.
Subclass:
452
Having integral closure means:
This subclass is indented under subclass 449. Subject matter
wherein the open end of the shot container is closed by
deforming part of the shot container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
463 for a shot cartridge with integral closure means.
Subclass:
453
Having integral wad:
This subclass is indented under subclass 449. Subject matter
wherein a wad is formed as part of the shot container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
451 for a shot container having an integral collapsible
wad.
Subclass:
454
Including divided shot charge:
This subclass is indented under subclass 449. Subject matter
having means to separate the pellets into individual groups.
Subclass:
455
Including filler means in the shot area:
This subclass is indented under subclass 449. Subject matter
having means to occupy the space between the pellets.
Subclass:
456
With additional means to keep container closed:
This subclass is indented under subclass 449. Subject matter
including means not integral with the container for holding
the container from opening until it has left a gun barrel
e.g., wire, cord, etc.
Subclass:
457
With control of shot spread:
This subclass is indented under subclass 448. Subject matter
including means to cause the shot to spread as the shot
leaves a gun barrel or to keep the shot together for a
certain distance after leaving the gun barrel before allowing
it to spread.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 449+ for a container that holds shot together as
it leaves a gun barrel.
Subclass:
458
With tracer means:
This subclass is indented under subclass 448. Subject matter
including means to indicate a flight path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for smoke generating means.
subclasses 335+ for pyrotechnic or flare means used for
general purposes, e.g., light, signal, etc.
364 for incendiary means.
513 for target or tracer means.
Subclass:
459
Including coated shot:
This subclass is indented under subclass 448. Subject matter
wherein each shot pellet is covered with a material, e.g.,
plastic, oil, etc.
Subclass:
460
Having shot of different size or shape:
This subclass is indented under subclass 448. Subject matter
wherein the shot pellets vary in dimension and/or the outline
or external surface varies.
Subclass:
461
Collapsible wad:
This subclass is indented under subclass 448. Subject matter
wherein a plug, packing, etc., is used as a spacer, seal,
cushion, etc., in a shot cartridge and is so constructed that
it will cave-in breakdown, etc., when the cartridge is
fired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 450+ for collapsible wad used in a shot
container.
532 for wads not provided for here or the above search
subclass.
Subclass:
462
Closure means:
This subclass is indented under subclass 448. Subject matter
wherein a plug, packing, etc., is used to cover the end of
the shot cartridge where the pellets leave when fired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
532 for wads not provided for here.
Subclass:
463
Integral:
This subclass is indented under subclass 462. Subject matter
wherein the end where the pellets leave is closed by
deforming part of the shot cartridge.
Subclass:
464
Case:
This subclass is indented under subclass 430. Subject matter
having structure relating to that part of a cartridge which
is for holding a projectile, charge, and primer.
Subclass:
465
Nonmetallic:
This subclass is indented under subclass 464. Subject matter
wherein the case is made of a material that lacks the
characteristics or a metal.
Subclass:
466
Plastic cases:
This subclass is indented under subclass 465. Subject matter
wherein the case is made of, at least in part, plastic
material.
(1) Note. Paper is not a plastic material for this or
indented subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
464 for a paper case.
Subclass:
467
With metal base or reinforcement:
This subclass is indented under subclass 466. Subject matter
wherein the end of the cartridge that holds a primer is made
of metal and/or the tubular part of the cartridge is
laminated, strengthened by ribs, added material, etc.
Subclass:
468
Iron case:
This subclass is indented under subclass 464. Subject matter
wherein the tubular portion of a cartridge is made of iron or
alloys of iron.
SEE OR SEARCH THIS CLASS, SUBCLASS:
465 for nonmetallic case with metal base or reinforcement.
Subclass:
469
Breech end structure:
This subclass is indented under subclass 464. Subject matter
relating to the bottom part of a case which holds the
primer.
Subclass:
470
With primer means:
This subclass is indented under subclass 469. Subject matter
including means to ignite a charge in the cartridge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
204 for procession primers or ignitors, per se.
Subclass:
471
Rim fired:
This subclass is indented under subclass 470. Subject matter
wherein the igniting means is in the breech end edge of the
cartridge case or a lever extends from the breech end edge
for the purpose of igniting the primer.
Subclass:
472
Electric:
This subclass is indented under subclass 470. Subject matter
wherein the charge is ignited by electrical means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.5 for electric fuses, per se.
Subclass:
473
SHELLS:
This subclass is indented under the class definition.
Apparatus and corresponding methods having a missile
containing a high explosive.
(1) Note. The projectile can be of the type to be projected
from a gun or otherwise projected.
(2) Note. Search the appropriate subclasses above for
combination with a shell.
(3) Note. Subcombination specialized to shells not provided
for elsewhere are in this or indented subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for ignition devices or systems, per se.
370 for gas or mist dispensing shells.
Subclass:
474
Continuous rod warhead:
This subclass is indented under subclass 473. Subject matter
wherein the shell is made of shafts, bars, etc., connected
together to form a continuous, usually annular, structure
upon detonation.
Subclass:
475
Focused or directed detonation:
This subclass is indented under subclass 473. Subject matter
wherein a wave generated by the explosive force is controlled
so that the wave is concentrated at a common place for
directing the shell or wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
305 for detonation wave modifying means for blasting
devices.
480 for laterally directed barrels for guiding projectiles.
Subclass:
476
Shaped charge:
This subclass is indented under subclass 475. Subject matter
wherein the explosive force is focused into a very sharp beam
of high gain.
(1) Note. The explosive charge usually has a cavity to
direct or shape the force of the explosive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 306+ for a shape charge for blasting devices.
Subclass:
477
With means to form bursting charge after projection:
This subclass is indented under subclass 473. Subject matter
having normally inactive or isolated components which are
admixed or otherwise rendered active during flight of the
shell to produce an explosive bursting charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
478 for divided bursting charges to reduce compression as a
shell leaves a gun.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, subclass 524.1 for a
receptacle with specified material for the container or
content.
Subclass:
478
Having divided bursting charge:
This subclass is indented under subclass 473. Subject matter
wherein the bursting charge is separated into portions by
separators or baffles.
(1) Note. The separation is usually to reduce the
compression of the charge produced by acceleration of the
shell when leaving a gun barrel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
443 for a cartridge having divided propelling charges.
477 for a shell wherein the active ingredients for producing
a bursting charge are divided prior to firing of the shell.
490 for a shell having plural propelling charges.
Subclass:
479
With bursting charge cushioning means:
This subclass is indented under subclass 473. Subject matter
including means to absorb shock of the explosive bursting
charge during handling or the acceleration produced when the
shell leaves a gun barrel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
478 for a shell wherein the explosive charge is divided by
separators or baffles to reduce the compression caused by
acceleration.
481 for a shell with other type safety means.
Subclass:
480
With laterally directed barrels:
This subclass is indented under subclass 473. Subject matter
including tubed, cylinders, etc., for guiding missiles which
extend generally laterally from the flight axis and from
which missiles are projected.
SEE OR SEARCH THIS CLASS, SUBCLASS:
383 for drop bombs with laterally directed barrels.
475 for wave focus or direction.
subclasses 491+ for shells which indiscriminately disperse
missiles or particles.
Subclass:
481
With safety means:
This subclass is indented under subclass 473. Subject matter
including means for preventing an accident.
Subclass:
482
Grenade:
This subclass is indented under subclass 473. Subject matter
wherein the explosive device is adapted to be thrown by hand,
by a mechanical throwing means or projected from the end of a
gun barrel.
(1) Note. The grenade does not pass bodily through a gun
barrel in the manner of a bullet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
353 for toy torpedoes.
368 for a gas or mist dispersing grenade.
SEE OR SEARCH CLASS:
169, Fire Extinguishers, subclass 36 for fire extinguishing
grenades.
Subclass:
483
With gun or other projector engaging or cooperating means:
This subclass is indented under subclass 482. Subject matter
including means for mounting or attaching the grenade to a
gun barrel or other projector.
(1) Note. Subcombination of means to actuate the grenade in
cooperation with the projection means are included here,
e.g., shafts or rods to enter a gun barrel.
SEE OR SEARCH CLASS:
42, Firearms, subclass 1 for firearm with a grenade
launcher.
124, Mechanical Guns and Projectors, subclass 5 for
hand-operated centrifugal throwing devices.
Subclass:
484
With bullet passage through grenade:
This subclass is indented under subclass 483. Subject matter
wherein the grenade has a hole extending axially so that a
bullet can pass through it.
Subclass:
485
With bullet stopping means:
This subclass is indented under subclass 483. Subject matter
including means to prevent a bullet from passing through the
grenade.
Subclass:
486
With throwing handle, handgrip, or strand:
This subclass is indented under subclass 482. Subject matter
including means so that the grenade can be held to assist in
throwing it.
SEE OR SEARCH THIS CLASS, SUBCLASS:
358 for pyrotechnic devices having handle, handgrip, or
other forms of support, and see the search notes.
Subclass:
487
With igniting means:
This subclass is indented under subclass 482. Subject matter
including means for initiating the combustion or detonation
of explosive or thermic compositions or charges.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for ignition devices and systems.
subclasses 260+ for manually released latch.
Subclass:
488
Impact-operated:
This subclass is indented under subclass 487. Subject matter
wherein the initiating is caused by imparting an impulse or
mechanical force to a percussion sensitive explosive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for impacting igniting devices.
Subclass:
489
With secondary shells:
This subclass is indented under subclass 473. Subject matter
wherein a main shell has plural shells held within it and
these shells are projected from the main shell.
(1) Note. The secondary shells have explosive means in them
so that they will explode.
Subclass:
490
With range increasing means.
This subclass is indented under subclass 473. Subject matter
having means successively fired while a shell is in flight to
impart thrust to the shell for adding distance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 377+ for a reaction motor for propelling a
missile.
Subclass:
491
Shrapnel:
This subclass is indented under subclass 473. Subject matter
wherein the shell has a number of small missiles or fragments
which are scattered by the explosive charge of the shell or
the shell has scorings or other formations to render the
shell readily fragmentable by the explosive charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
389 for fragmentation drop bombs.
subclasses 482+ for grenades which are usually of shrapnel
type.
Subclass:
492
Focused fragmentation:
This subclass is indented under subclass 491. Subject matter
having means to direct fragments in a particular direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
480 for a shell with laterally directed barrels.
Subclass:
493
Structurally weakened casing:
This subclass is indented under subclass 491. Subject matter
wherein the shell casing has scores, grooves, etc., to
enhance fragmentation.
Subclass:
494
Multiple fragments:
This subclass is indented under subclass 491. Subject matter
wherein the shell contains or is composed of plural separate
elements.
(1) Note. The multiple elements are not formed by
fragmentation upon detonation of the shell.
SEE OR SEARCH THIS CLASS, SUBCLASS:
493 for fragmenting of a shell.
Subclass:
495
Casing:
This subclass is indented under subclass 494. Subject matter
wherein a shell outer surface is made up of a plurality of
elements.
Subclass:
496
Embedded:
This subclass is indented under subclass 494. Subject matter
wherein the fragments are set or fixed in the shells surface
and/or inside of the shell.
Subclass:
497
With explosive:
This subclass is indented under subclass 496. Subject matter
wherein the embedded fragments are placed in the explosive of
the shell.
Subclass:
498
Practice:
This subclass is indented under subclass 473. Subject matter
wherein the shell is constructed for use in practice.
SEE OR SEARCH THIS CLASS, SUBCLASS:
444 for a cartridge with a practice projectile, and see the
search notes.
Subclass:
499
With igniting means:
This subclass is indented under subclass 473. Subject matter
including means for initiating the detonation of the
explosive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for igniting devices or systems.
Subclass:
500
Axially movable impacting means:
This subclass is indented under subclass 499. Subject matter
including means movable along an axis to impart an impulse of
mechanical force to a percussion sensitive explosive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 272+ for impacting igniting devices.
Subclass:
501
PROJECTILES:
This subclass is indented under the class definition.
Apparatus and corresponding methods having a projectile or
payload which is to be propelled through air or water.
(1) Note. Subcombination specialized to projectiles not
provided for elsewhere are in this or indented subclasses.
(2) Note. Where the disclosure is silent to the type of
propelling means for the projectile and the projectile
structure is not unique to explosive propulsion, the device
is classified with the nonexplosively propelled aerial
devices in Class 273, Amusement Devices: Games.
(3) Note. Where the projectile is claimed with no
significant projectile structure but merely in terms of the
composition or material of which it is composed, it will be
classified in the appropriate composition or material class.
(4) Note. A projectile is a missile or payload for these
subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 430+ for a missile in combination with a
cartridge case.
subclasses 473+ for a missile enclosing an explosive
charge.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, note particularly the
class definition for the type of composition within the scope
of Class 106.
148, Metal Treatment, particularly subclasses 400+ for
materials which are products of processes of treating metals
classifiable in Class 148, or for products distinguished only
by the internal structure or characteristics of the metals,
metallic compositions, or alloys comprising such structures.
260, Chemistry of Carbon Compounds, subclass 2.01 for
compositions containing a synthetic resin; and subclasses
709+ for compositions containing a natural rubber.
273, Amusement Devices: Games, subclasses 317+ for aerial
devices nonexplosively propelled.
420, Alloys or Metallic Compositions for articles defined
solely by their metal or alloy composition.
428, Stock Material or Miscellaneous Articles, subclass 542.8
and 577+ for an article of intermediate shape.
Subclass:
502
Nonlethal or deterrent:
This subclass is indented under subclass 501. Subject matter
wherein the projectile is designed so that it will only stun,
mark, shock, etc., a person or animal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
512 for narcotizing projectiles.
Subclass:
503
Tubular:
This subclass is indented under subclass 501. Subject matter
wherein the projectile has a hole passing through it in the
direction of travel.
Subclass:
504
Line carrying or filamentary material distributing:
This subclass is indented under subclass 501. Subject matter
including strands, filamentary, or solid material carried by
or in the projectile.
(1) Note. The projectile may have an explosive charge within
it to force a line, chaff, etc., out that is carried within
the projectile.
(2) Note. The line may be (a) for lifesaving (b) for
destructive purposes such as to entangle troops, aircraft,
etc., or (c) for distributing material such as barbed wire,
rope, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
371 for line-carrying bomb lances.
Subclass:
505
Chaff dispensing:
This subclass is indented under subclass 504. Subject matter
wherein the material released from the projectile are strips,
blanks, short pieces, etc., which are comparatively light so
as to float in air.
SEE OR SEARCH THIS CLASS, SUBCLASS:
400 for line-carrying projectile with anchor means.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and Devices
(e.g., Radar, Radio Navigation), subclass 12 for chaff radar
reflectors, per se.
Subclass:
506
Fragmenting:
This subclass is indented under subclass 501. Subject matter
wherein the projectile is formed of disconnectable or
severable parts which separate and scatter during flight.
SEE OR SEARCH THIS CLASS, SUBCLASS:
473 for shells with a bursting charge to cause
fragmentation.
Subclass:
507
Dumdum or mushrooming:
This subclass is indented under subclass 501. Subject matter
wherein the projectile nose is made of a soft material or
specially constructed for lateral expansion upon impact.
Subclass:
508
With cavity:
This subclass is indented under subclass 507. Subject matter
including a hole in the projectile to facilitate lateral
expansion upon impact.
Subclass:
509
Hollow:
This subclass is indented under subclass 508. Subject matter
wherein the cavity has a bottom.
Subclass:
510
With expanding member:
This subclass is indented under subclass 509. Subject matter
including means to partially fill the cavity to cause
expansion upon impact.
Subclass:
511
Lubricating:
This subclass is indented under subclass 501. Subject matter
wherein the projectile has means to lubricate the bore of a
gun.
(1) Note. The lubricating is for minimizing the effect of
drag.
SEE OR SEARCH THIS CLASS, SUBCLASS:
366 for means to distribute oil for quieting waves.
SEE OR SEARCH CLASS:
508, Solid Antifriction Devices, Materials Therefor,
Lubricant or Separant Compositions for Moving Solid Surfaces,
and Miscellaneous Mineral Oil Compositions, for lubricant
compositions or for projectiles claimed by name only but
which are recited solely in terms of the lubricating
composition of which it is composed even if there is no claim
to the composition, per se.
Subclass:
512
Narcotizing:
This subclass is indented under subclass 501. Subject matter
wherein the projectile includes means to lull or dull the
senses of a human or animal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
502 for nonlethal missile.
SEE OR SEARCH CLASS:
604, Surgery, subclass 130 for projectile hypodermic dosing
devices not of the bullet type.
Subclass:
513
Target marking:
This subclass is indented under subclass 501. Subject matter
including means to indicate a flight path or an impact with
an objective.
(1) Note. Projectiles containing radioactive material are
included here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for smoke generating used for general purpose.
subclasses 335+ for pyrotechnic or flare means use for
general purposes, e.g., light, signal, etc.
subclasses 364+ for incendiary means.
458 for tracer means within a short cartridge.
Subclass:
514
Having jacket:
This subclass is indented under subclass 501. Subject matter
including a layer or coating of material enclosing the
projectile.
(1) Note. The jacket may not completely enclose the
projectile.
Subclass:
515
Nonmetallic:
This subclass is indented under subclass 514. Subject matter
wherein the jacket is composed of elements other than metal.
Subclass:
516
Composite:
This subclass is indented under subclass 514. Subject matter
wherein the means within the jacket is made of a plurality of
individual elements.
Subclass:
517
Composite:
This subclass is indented under subclass 501. Subject matter
wherein the projectile is made of a plurality of individual
elements connected together to form a unitary body.
(1) Note. The indented subclasses have subcombination of the
projectile, e.g., rifling or driving means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
430 for a composite projectile in combination with a
cartridge case.
473 for a composite projectile having an enclosed explosive
charge.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 1.23 for means to make a
composite projectiles.
Subclass:
518
Hardened core within a chamber:
This subclass is indented under subclass 517. Subject matter
wherein the projectile has an element made of firm,
unyielding, etc., material enclosed within it.
SEE OR SEARCH THIS CLASS, SUBCLASS:
519 for a separate hardened nose of a projectile.
Subclass:
519
With separate hardened nose:
This subclass is indented under subclass 517. Subject matter
including an element made of firm, unyielding, etc., material
which is secured to the front of the projectile.
Subclass:
520
Sabot or carrier:
This subclass is indented under subclass 517. Subject matter
wherein the projectile has means which enclose or cover a
substantial portion of it or supports it when engaged with a
bore or rifling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
524 for rifling or driving means, e.g., band.
Subclass:
521
Subcaliber:
This subclass is indented under subclass 520. Subject matter
having means to enlarge a portion of the projectile so that
it will fit a bore of a larger size.
Subclass:
522
Base enclosed:
This subclass is indented under subclass 521. Subject matter
wherein the bottom or lowest part of the projectile is
surrounded or enclosed by the sabot or carrier.
Subclass:
523
With projectile exposed to propellent gas:
This subclass is indented under subclass 522. Subject matter
wherein the base enclosed means has an aperture to allow
gases to contact the projectile.
Subclass:
524
Rifling or driving means (e.g., band):
This subclass is indented under subclass 517. Subject matter
wherein the projectile includes rings, disks, flanges,
grooves, etc., which form part of it or are attached to it.
(1) Note. The rifling or driving means of a projectile
engage the bore or rifling of a gun to prevent windage.
Subclass:
525
Wedge expanded:
This subclass is indented under subclass 524. Subject matter
wherein a tapering element is movable to cause the sabot or
rifling band to be expanded or the sabot or rifling band are
adapted to slide upon a tapering or conical shaped part.
Subclass:
526
Including annular member:
This subclass is indented under subclass 524. Subject matter
wherein the band is a separate element and forms a ring
around the projectile.
Subclass:
527
Nonmetallic:
This subclass is indented under subclass 526. Subject matter
wherein the member is composed of elements other than metal.
Subclass:
528
Band protector:
This subclass is indented under subclass 524. Subject matter
having means to shield from damage the rifling or driving
band, e.g., during storage.
Subclass:
529
Practice or cleaning:
This subclass is indented under subclass 501. Subject matter
wherein the projectile is constructed for use in practice,
e.g., short range target work or to remove dirt, impurities,
etc., from the bore of a gun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
442 for cartridges with bore cleaning means.
444 for cartridges with practice projectiles.
498 for a shell projectile used in practice.
502 for nonlethal or deterrent projectile.
Subclass:
530
JACKETED OR CARTRIDGE GAS GENERATOR:
This subclass is indented under the class definition. Subject
matter which includes method and apparatus having a casing or
covering and a combustible charge within the casing or
covering, such charge when ignited produces a gas under
pressure to perform some task or to simulate the noise of
genuine ammunition.
(1) Note. Here are blank cartridges and shells.
(2) Note. The primer to ignite the charge may or may not be
claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
314 for blasting cartridges.
370 for noxious gas container.
374 for a reaction motor and a payload.
430 for cartridges including a projectile.
498 for practice shells.
SEE OR SEARCH CLASS:
273, Amusement Devices: Games, subclasses 317+ for a toy
bullet or bomb.
Subclass:
531
For gas-powered tools or means:
This subclass is indented under subclass 530. Subject matter
wherein the charge and the casing or covering is used as a
motive source for instruments designed to perform some task.
SEE OR SEARCH CLASS:
43, Fishing, Trapping, and Vermin Destroying, subclass 84
for explosively actuated traps.
55, Gas Separation, subclasses 432+ for two or more
filters; and subclasses 460+ for means securing or retaining
separating media.
60, Power Plants, subclass 39.01, particularly subclass 39.02
for processes; subclass 39.47 for solid fuel containing
oxygen used as a motive fluid; subclasses 39.821+ or a
combustion products generator having an ignitor device;
subclasses 200+ for rocket motors; and subclass 632 for one
shot explosion actuated expansible chamber motors.
72, Metal Deforming, subclasses 5+ for metal deforming by
application of fluid medium or energy field; and subclass 362
for processes of metal deforming.
89, Ordnance, subclass 1.14 and 1.16 for explosively
operated apparatus and engine starters using explosively
generated gas under pressure.
169, Fire Extinguishers, subclass 84 for portable
extinguishers operated by gas produced by combustion.
227, Elongated-Member-Driving Apparatus, subclasses 9+ for
explosively operated driving means.
244, Aeronautics, subclass 146 for parachutes having
inflated bracing.
280, Land Vehicles, subclass 728.1 for inflatable passengers
restraints or confinements and attachments thereto.
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or
Locked-Threaded Fastener, subclasses 440+ for fasteners
having means to facilitate the explosive driving of the
fastener.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 164 for
solid reactant-type gas generators with or without ignition
and cooling means.
441, Buoys, Rafts, and Aquatic Devices, subclasses 40+ for
inflatable life rafts; and subclasses 98+ with expanding
means by chemical operation for a personal flotation device.
Subclass:
532
WADS:
This subclass is indented under the class definition. Subject
matter wherein a plug, packing, stuffing, etc., is used as a
spacer, seal, cushion, etc., for a gun or cartridge.
(1) Note. Where the wad is claimed with no significant wad
structure but merely in terms of the composition or material
of which it is composed, it will be classified in the
appropriate composition or material class, even though there
is no claim to the composition, per se.
SEE OR SEARCH THIS CLASS, SUBCLASS:
333 for plugs for blasting means.
subclasses 448+ for a wad provided for with or without a
shot cartridge.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing; and 57, Textiles: Spinning,
Twisting, and Twining, for products which are mere admixtures
of textile fibers of which have textile structure within the
scope of these classes.
106, Compositions: Coating or Plastic, note particularly the
class definition for the type of composition within the scope
of Class 106, and for compositions elsewhere classified.
162, Paper Making and Fiber Liberation, for paper stock.
260, Chemistry of Carbon Compounds, subclass 2.01 for
compositions containing a synthetic resin; and subclasses
709+ for compositions containing a natural rubber.
277, Seal for a Joint or Juncture, for a generic sealing
means or process.
428, Stock Material or Miscellaneous Articles, appropriate
subclasses for a stock material product in the form of a
single or plural layer web or sheet; and particularly
subclass 292.1 for such product when including a component
containing structurally defined fibers.
CROSS-REFERENCE ART COLLECTIONS
Subclass:
700
COMBUSTIBLE CARTRIDGE:
A cartridge is formed by molding a propellant to a projectile
in such a way that it has sufficient strength to be handled.
Subclass:
701
CHARGE WAVE FORMING:
A charge is shaped and/or has material added so that upon
detonation the resulting wave will be formed according to the
shape or its direction of travel will be changed because of
the addition of material.
Subclass:
702
COMPRESSION IGNITION:
The ignition is a high pressured air or gas, heat generating
material, spring, etc., for propelling a projectile.
Subclass:
703
FLECHETTE:
A rodlike dart with vanes or fluted shaft, small lightweight
elongated projectile, etc.
Subclass:
704
COOLANTS:
Material or a fluid is added to an explosive or projectile to
lower the temperature of combustion or of the projectile.
Subclass:
705
SEPARATED EXPLOSIVE CONSTITUENTS:
The materials which form an explosive are not in contact with
each other until an explosion is desired.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000