CPC Subgroup
B30B 11/22 Extrusion presses; Dies therefor (extruding by the use of roller-and-ring machines B30B11/20)
Full Title
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)
9 direct subcodes
Child Classifications
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- B30B 11/24 using screws or worms
- B30B 11/26 using press rams
- B30B 11/28 using perforated rollers or discs
- B30B 11/30 using directly-acting fluid pressure