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Current content: 156 978 933 patent documents

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169 914 new documents added

2 331 667 documents amended

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EP 0330003 B1 19920102 - SCREW EXTRUDER

Title (en)

SCREW EXTRUDER

Publication

EP 0330003 B1 19920102 (DE)

Application

EP 89101988 A 19890204

Priority

DE 3806146 A 19880226

Abstract (en)

[origin: EP0330003A1] Screw extruder comprising a screw (1) consisting of two sections (11, 12), the connection of which is provided by a surface-bearing coupling which is held under prestress using a safety device. The second screw part (12) at the free screw end consists of wear- resistant material, in which the dimensions of the screw core, screw thread and of the screw end are in conformity with the requirements of the material to be extruded. <IMAGE>

IPC 1-7

B30B 11/24

IPC 8 full level

B30B 11/24 (2006.01)

CPC (source: EP)

B30B 11/246 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0330003 A1 19890830; EP 0330003 B1 19920102; EP 0330003 B2 19951108; AT E71018 T1 19920115; DE 3806146 A1 19890907; DE 58900644 D1 19920213

DOCDB simple family (application)

EP 89101988 A 19890204; AT 89101988 T 19890204; DE 3806146 A 19880226; DE 58900644 T 19890204