Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B29C 48/445

Coaxially arranged screws, i.e. one within the other

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 > Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die > using screws surrounded by a cooperating barrel, e.g. single screw extruders > Coaxially arranged screws, i.e. one within the other

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 > Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die > using screws surrounded by a cooperating barrel, e.g. single screw extruders > Coaxially arranged screws, i.e. one within the other

No child classifications to compare. This is a leaf node in both IPC and CPC.