F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
WEAPONS; BLASTING
 F42
AMMUNITION; BLASTING
 F42

Note(s)

  1. Although simulators are generally in class G09, provision is included in class F42 for means for practice or training which may have aspects of simulation.
  2. In this class, the following terms are used with the meanings indicated:
    1. "Primer" effects the first explosive step in the sequence of explosion.
    2. "Percussion cap" — a primer which is struck to explode.
    3. "Igniter" effects the first spark-producing or heat-producing step but may not be explosive.
    4. "Firing-means", "initiator" (used respectively in the arts of weaponry and blasting) — the device acting directly on the primer, which device may or may not form part of the fuze.
    5. "Detonator charge" — a charge used to amplify the explosion of the primer.
    6. "Fuze" — an assembly which determines the moment of the explosion (instantaneous or delayed) and which incorporates firing-means for initiating the explosion spark.
    7. "Ammunition" covers expulsion charge and projectile whether or not forming a single body, unless otherwise made clear. [2]
 F42B
EXPLOSIVE CHARGES; AMMUNITION; MISSILES (fuzes F42C); FIREWORKS (chemical compositions therefor C06B)  [2]
 F42B

Note(s)

In order to avoid confusion with devices that are variously described as guided missiles, self-propelled missiles, or rockets, such devices, if self-propelled, are classified in group F42B 15/00 except that when such devices are fired from a gun they are classified in group F42B 13/28. If such devices are not self-propelled, they are classified in group F42B 25/00 when they fly by falling, and in group F42B 13/00 when they are fired from a gun.


 F42C
FUZES (chemical aspects C06C); ARMING OR SAFETY MEANS THEREFOR

 F42D
BLASTING