Global Patent Index - EP 1237667 A1

EP 1237667 A1 2002-09-11 - PRECISE COLUMNAR MEMBER AND METHOD OF PRODUCING THE SAME

Title (en)

PRECISE COLUMNAR MEMBER AND METHOD OF PRODUCING THE SAME

Title (de)

PRÄZISES SÄULENFÖRMIGES BAUELEMENT UND VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

ELEMENT COLONNAIRE PRECIS ET SON PROCEDE DE FABRICATION

Publication

EP 1237667 A1 (EN)

Application

EP 00980001 A

Priority

  • JP 0008694 W
  • JP 35266399 A

Abstract (en)

[origin: US2002162372A1] The present invention relates to a metallic, precise columnar member having an outer diameter with high accuracy, wherein the columnar member comprises a plurality of flattened thread ridges having a predetermined outer diameter provided on the surface of a metallic columnar blank in an axial direction. The method of the present invention comprises the steps of using rolling to form a plurality of thread ridges on the surface thereof and using rolling or drawing to make the tops of the thread ridges flat.

IPC 1-7 (main, further and additional classification)

B21H 7/18

IPC 8 full level (invention and additional information)

B21H 3/00 (2006.01); B21H 3/02 (2006.01); B21H 7/18 (2006.01)

CPC (invention and additional information)

B21H 3/00 (2013.01); B21H 7/18 (2013.01)

Citation (search report)

See references of WO 0141952A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

US 2002162372 A1 20021107; EP 1237667 A1 20020911; JP 2001170732 A 20010626; WO 0141952 A1 20010614

INPADOC legal status


2004-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB

2004-03-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030916

2003-06-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030505

2002-09-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020705

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI