Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Blasting methods or apparatus, e.g. for loading or tamping > Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor

CPC:

Blasting methods or apparatus, e.g. loading or tamping > Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

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F42D 1/10 Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure since 1990 IPC+CPC Available in IPC and CPC
F42D 1/12 Feeding tamping material by pneumatic or hydraulic pressure since 1990 IPC+CPC Available in IPC and CPC
F42D 1/14 Hand-operated tamping or loading since 1990 IPC+CPC Available in IPC and CPC
F42D 1/18 Plugs for boreholes since 1990 IPC+CPC Available in IPC and CPC
F42D 1/20 Tamping cartridges, i.e. cartridges containing tamping material (flexible or deformable blasting cartridges F42B3/087) since 1990 IPC+CPC Available in IPC and CPC
F42D 1/22 Methods for holding or positioning for blasting cartridges or tamping cartridges since 1990 IPC+CPC Available in IPC and CPC
F42D 1/24 characterised by the tamping material since 1990 IPC+CPC Available in IPC and CPC

Class F42,2013–2023, worldwide · Source: EPO PATSTAT

Class F42,2013–2023, worldwide · Source: EPO PATSTAT