US PATENT SUBCLASS 102 / 202.5
.~ Electrical primer or ignitor

Current as of: June, 1999
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102 /   HD   AMMUNITION AND EXPLOSIVES

200  DF  IGNITING DEVICES AND SYSTEMS {15}
202.5.~ Electrical primer or ignitor {8}
202.6  DF  .~.~> Having an additional ignitor or water destructible fuse
202.7  DF  .~.~> Having an exploding bridgewire
202.8  DF  .~.~> Having a spark gap or conductive composition or charge
202.9  DF  .~.~> With electric terminals
202.11  DF  .~.~> Having an electric matchhead
202.12  DF  .~.~> Assemblies (e.g., packaging)
202.13  DF  .~.~> Having a powder train time delay
202.14  DF  .~.~> With housing

DEFINITION

Classification: 102/202.5

Electric primer or ignitor:

(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.

206+, for electrical ignition or detonation circuits.

275.9, for in name only electrical primers claiming a housing with an explosive therein.

305+, for detonation wave modifying.

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.

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,

1, for methods of making fuses.

181, Acoustics,

116+, for seismic wave generation explosive devices. 219, Electric Heating,

260+, for resistive ignitors.

361, Electricity: Electrical Systems and Devices,

248+, for igniting systems for explosives.

367, Communications, Electrical: Acoustic Wave System and Devices,

145, for underwater explosive type transmitter signal transducers.

431, Combustion,

258+, for a burner having an electrical heater or igniter.