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

Note(s)

  1. Although simulators are generally in G09, provision is included in class F42 for means for practice and training which may have aspects of simulation, e.g. in apparatus for so-called "military games"
  2. This class does not include construction of fireworks, as C06D provides not only for compositions but also for firework bodies.
  3. 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.
 F42C
FUZES (chemical aspects C06C); ARMING OR SAFETY MEANS THEREFOR
 F42C 1/00
Fuzes actuated only by impact, i.e. percussion fuzes
 F42C 1/02
·  with firing-pin structurally combined with fuze
 F42C 1/04
·  ·  operating by inertia of members on impact
 F42C 1/06
·  ·  ·  for any direction of impact
 F42C 1/08
·  ·  with delayed action after ignition of fuze (time fuzes F42C 9/00)
 F42C 1/10
·  without firing-pin
 F42C 1/12
·  ·  with delayed action after ignition of fuze (time fuzes F42C 9/00)
 F42C 1/14
·  operating at a predetermined distance from ground or target by means of a protruding member
 F42C 3/00
Fuzes actuated by exposure to a liquid, e.g. sea-water (time fuzes F42C 9/00)
 F42C 5/00
Fuzes actuated by exposure to a predetermined fluid pressure
 F42C 5/02
·  barometric pressure
 F42C 7/00
Fuzes actuated by application of a predetermined mechanical force, e.g. tension, torsion
 F42C 7/02
·  actuated by personnel or vehicle to detonate a land mine
 F42C 9/00
Time fuzes; Combined time- and percussion- or pressure-actuated fuzes; Fuzes for timed self-destruction of missile
 F42C 9/02
·  the timing being caused by mechanical means
 F42C 9/04
·  ·  by spring motor
 F42C 9/06
·  ·  by flow of fluent material, e.g. shot, fluids
 F42C 9/08
·  the timing being caused by chemical action, e.g. of acids
 F42C 9/10
·  the timing being caused by combustion
 F42C 9/12
·  ·  with ring combustion elements
 F42C 9/14
·  Double fuzes; Multiple fuzes
 F42C 9/16
·  ·  for self-destruction of missile
 F42C 11/00
Electric fuzes (proximity fuzes F42C 13/00; electric igniters F42C 19/12)
 F42C 11/02
·  with piezo-crystal
 F42C 11/04
·  with current induction
 F42C 11/06
·  with time delay by electric circuitry
 F42C 13/00
Proximity fuzes; Fuzes for remote detonation (detecting systems per se G01)
 F42C 13/02
·  operated by intensity of light or similar radiation
 F42C 13/04
·  operated by radio waves
 F42C 13/06
·  operated by sound waves
 F42C 13/08
·  operated by variations in magnetic field
 F42C 15/00
Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges (groups F42C 15/02-F42C 15/14 take precedence over groups F42C 15/16 onwards)
 F42C 15/02
·  Arrangements for use with hand grenades or rifle grenades
 F42C 15/04
·  Arrangements for use with gun missiles or mortar missiles
 F42C 15/06
·  Arrangements for use with rockets
 F42C 15/08
·  Arrangements for use with torpedoes
 F42C 15/10
·  Arrangements for use with marine mines or depth charges
 F42C 15/12
·  Arrangements for use with fall bombs
 F42C 15/14
·  Arrangements for use with land mines
 F42C 15/16
·  wherein the firing-pin or the like is displaced out of the action line for safety (F42C 15/40 takes precedence)
 F42C 15/18
·  ·  using a pivoted member; using a rotatable member
 F42C 15/20
·  wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin (F42C 15/40 takes precedence)
 F42C 15/22
·  ·  using centrifugal force
 F42C 15/24
·  wherein the safety or arming action is effected by inertia means (F42C 15/20 takes precedence)
 F42C 15/26
·  ·  using centrifugal force
 F42C 15/28
·  operated by flow of fluent material, e.g. shot, fluids (F42C 15/26 takes precedence)
 F42C 15/30
·  ·  of propellant gases
 F42C 15/32
·  operated by change of fluid pressure
 F42C 15/34
·  wherein the safety or arming action is effected by a blocking-member between primer and detonator charge (F42C 15/40 takes precedence)
 F42C 15/36
·  wherein arming is effected by combustion or fusion of an element
 F42C 15/38
·  wherein arming is effected by chemical action
 F42C 15/40
·  wherein the safety or arming action is effected electrically
 F42C 17/00
Fuze-setting apparatus
 F42C 17/02
·  Fuze-setting keys
 F42C 19/00
Details of fuzes (except F42C 15/00)
 F42C 19/02
·  Fuze bodies; Fuze housings
 F42C 19/04
·  Protective caps
 F42C 19/06
·  Electric contact parts specially adapted for use with electric fuzes
 F42C 19/08
·  Primers; Igniters
 F42C 19/10
·  ·  Percussion caps
 F42C 19/12
·  ·  electric
 F42C 21/00
Checking fuzes; Testing fuzes