Filters or screens for the moulding material

Full Title

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 > Details of extruders > Filters or screens for the moulding material

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

Subclass:

SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

Child Classifications

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• B29C 48/691 Arrangements for replacing filters, e.g. with two parallel filters for alternate use
• B29C 48/692 in the form of webs displaceable for using adjacent areas consecutively
• B29C 48/693 Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis
• B29C 48/694 Cylindrical or conical filters