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DETONATING OR PRIMING DEVICES; FUSES (ammunition fuzes F42C); CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
Definition statement
This subclass covers:

Fuses, e.g. fuse cords.

Non-electric detonators.

Blasting caps.

Primers.

Chemical contact igniters.

Chemical lighters.

Pyrophoric compositions.

Flints.

Relationship between large subject matter areas

This subclass does not cover chemical compounds or their preparation as such, which subject matter is covered by classes C01 (inorganic chemistry), C07 (organic chemistry) and C08 (organic macromolecular compounds).

References relevant to classification in this subclass

Examples of places where the subject matter of this class is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Ammunition fuzes

Initiators (non chemical aspects)

Filling fuzes

Containers for detonators or fuzes

Informative references
Attention is drawn to the following places, which may be of interest for search:

Explosives or thermic compositions; Manufacture thereof; use of single substances as explosives

Fire-lighters

Alloys in general

Ignition

Lighters containing fuel, e.g. for cigarettes, characterised by catalytic ignition of fuel

Non-chemical aspects of flints

Arrangement of catalytic igniters

Blasting cartridges, i.e. case and explosive

Arming or safety means for ammunition fuzes

Blasting

Glossary of terms
In this subclass, the following terms (or expressions) are used with the meaning indicated:

Pyrophoric

Pyrophoric (Greek, meaning fire-bearing) materials are finely divided chemical substances, mostly metals, which at room temperature vehemently react with the oxygen contained in air. The energy released in this oxidation process is sufficient to make substances glow or blaze. Therefore a pyrophoric material can spontaneously ignite in air.

Fuse igniting means; Fuse connectors
Definition statement
This subgroup covers:

Compositions of delay mixtures

Informative references
Attention is drawn to the following places, which may be of interest for search:

Blasting methods or apparatus, e.g. loading or tamping Arrangements for ignition

Ignition systems for methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells

Non-electric detonators; Blasting caps; Primers
Definition statement
This group covers:

Boosters

Pyrophoric compositions; Flints (chemical lighters C06C 9/00; alloys in general C22C)
Definition statement
This group covers:

Incendiary compositions.

Tracers, chemical light sources, illuminating compositions

Informative references
Attention is drawn to the following places, which may be of interest for search:

Napalm

Compositions for flashlights

Compositions for luminescence

Fireworks

Exothermal heat producing compositions

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013