Extrusion presses; Dies therefor (extruding by the use of roller-and-ring machines B30B11/20)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Extrusion presses; Dies therefor

CPC: Extrusion presses; Dies therefor (extruding by the use of roller-and-ring machines B30B11/20)

Full Title

Full titles differ between systems:

IPC:

Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses > Extrusion presses; Dies therefor

CPC:

Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses (for clay or mixtures containing cement B28B; for plastics materials B29) > Extrusion presses; Dies therefor (extruding by the use of roller-and-ring machines B30B11/20)

CPC subdivides this area 2x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

Child Classifications

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B30B 11/221 CPC only CPC only
B30B 11/222 CPC only CPC only
B30B 11/224 +1 CPC CPC only CPC only
B30B 11/227 CPC only CPC only
B30B 11/228 CPC only CPC only
B30B 11/24 using screws or worms +5 CPC IPC+CPC Available in IPC and CPC
B30B 11/26 using press rams +1 CPC IPC+CPC Available in IPC and CPC
B30B 11/28 using perforated rollers or discs IPC+CPC Available in IPC and CPC
B30B 11/30 using directly-acting fluid pressure IPC+CPC Available in IPC and CPC