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DIFF Subgroup
B29C 48/09

Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Introduced: January 2019

Full Title

Full titles differ between systems:

IPC:

Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor > characterised by the shape of the extruded material at extrusion > Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

CPC:

Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C49/04) > characterised by the shape of the extruded material at extrusion > Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 2019.

Child Classifications

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  • B29C 48/10 flexible, e.g. blown foils since 2019 IPC+CPC Available in IPC and CPC
  • B29C 48/11 comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped since 2019 IPC+CPC Available in IPC and CPC