|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

WEAPONS; BLASTING

|  | F42 |
AMMUNITION; BLASTING

|  | F42 |
Note(s) Although simulators are generally in class Fulltext... Hierarchy... Expanded...G09, provision is included in class Fulltext... Hierarchy... Expanded...F42 for means for practice or training which may have aspects of simulation. In this class, the following terms are used with the meanings indicated: "Primer" effects the first explosive step in the sequence of explosion. "Percussion cap" — a primer which is struck to explode. "Igniter" effects the first spark-producing or heat-producing step but may not be explosive. "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. "Detonator charge" — a charge used to amplify the explosion of the primer. "Fuze" — an assembly which determines the moment of the explosion (instantaneous or delayed) and which incorporates firing-means for initiating the explosion spark. "Ammunition" covers expulsion charge and projectile whether or not forming a single body, unless otherwise made clear. [2]

|  | F42C |
FUZES (chemical aspects Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...F42C 9/00)

|  | F42C 1/10 |
· | without firing-pin

|  | F42C 1/12 |
· · | with delayed action after ignition of fuze (time fuzes Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...F42C 13/00; electric igniters Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F42C 15/02-F42C 15/14 take precedence over groups Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...F42C 15/20 takes precedence)

|  | F42C 15/26 |
· · | using centrifugal force

|  | F42C 15/28 |
· | operated by flow of fluent material, e.g. shot, fluids (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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