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DIFF Subgroup
B29C 48/335

Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles

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 > Component parts, details or accessories; Auxiliary operations > Extrusion nozzles or dies > with annular openings, e.g. for forming tubular articles > Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles

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) > Component parts, details or accessories; Auxiliary operations > Extrusion nozzles or dies (extrusion characterised by the shape or cross-section of the extruded article B29C48/03) > with annular openings, e.g. for forming tubular articles > Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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