Global Patent Index - EP 0908257 A3

EP 0908257 A3 20020703 - Process for preparing a toothed pinion with collar

Title (en)

Process for preparing a toothed pinion with collar

Title (de)

Verfahren zum Herstellen eines Ritzels mit Bund und Verzahnung

Title (fr)

Procédé de préparation d'un pignon avec collerette et denture

Publication

EP 0908257 A3 20020703 (DE)

Application

EP 98118716 A 19981002

Priority

DE 19744226 A 19971007

Abstract (en)

[origin: EP0908257A2] The pinion is produced as a sintered component with a basic bainitic structure. Subsequently, by surface hardening, a martensitic structure is produced at least in the hub zone.

IPC 1-7

B22F 5/08; B22F 3/24

IPC 8 full level

B22F 3/10 (2006.01); B22F 3/24 (2006.01); B22F 5/08 (2006.01); C22C 33/02 (2006.01)

CPC (source: EP)

B22F 3/1028 (2013.01); B22F 3/24 (2013.01); B22F 5/08 (2013.01); C22C 33/0264 (2013.01)

Citation (search report)

  • [Y] US 5628045 A 19970506 - LINDNER KARL-HEINZ DR ING [DE], et al
  • [X] EP 0295111 A2 19881214 - AICHI STEEL WORKS LTD [JP], et al
  • [A] EP 0722796 A1 19960724 - SUMITOMO ELECTRIC INDUSTRIES [JP]
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 017, no. 708 (C - 1147) 24 December 1993 (1993-12-24)
  • [A] G. E. TOTTEN; M.A.H. HOWES: "Steel Heat Treatment Handbook", 1997, MARCEL DEKKER, NEW YORK, XP002188374

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0908257 A2 19990414; EP 0908257 A3 20020703; DE 19744226 A1 19990729; HU 9802246 A2 19990528; HU 9802246 A3 20010928; HU 9802246 D0 19981130

DOCDB simple family (application)

EP 98118716 A 19981002; DE 19744226 A 19971007; HU 9802246 A 19981006