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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 0115012 B1 19860604 - THREADING METHOD AND DEVICE

Title (en)

THREADING METHOD AND DEVICE

Publication

EP 0115012 B1 19860604 (DE)

Application

EP 83112747 A 19831217

Priority

DE 3300029 A 19830103

Abstract (en)

[origin: US4592221A] An axial thread roll head is used for producing threads on workpieces, arranged on a rotary disk of a numerically controlled automatic lathe and has two threaded rolls which, after rolling of a thread, are withdrawn in the same direction transversely to a workpiece with constantly retained opposite distance from the workpiece tangentially relative thereto.

IPC 1-7

B21H 3/04

IPC 8 full level

B21H 3/04 (2006.01)

CPC (source: EP US)

B21H 3/044 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0115012 A1 19840808; EP 0115012 B1 19860604; AT E20200 T1 19860615; DE 3300029 A1 19840705; DE 3363970 D1 19860710; US 4592221 A 19860603

DOCDB simple family (application)

EP 83112747 A 19831217; AT 83112747 T 19831217; DE 3300029 A 19830103; DE 3363970 T 19831217; US 56778584 A 19840103