(19)
(11) EP 0 353 231 A1

(12)

(43) Date of publication:
07.02.1990 Bulletin 1990/06

(21) Application number: 88902665.0

(22) Date of filing: 22.02.1988
(51) International Patent Classification (IPC): 
B21D 31/ 00( . )
B21J 13/ 02( . )
B21K 23/ 04( . )
B21J 5/ 02( . )
B21K 1/ 28( . )
(86) International application number:
PCT/US1988/000484
(87) International publication number:
WO 1988/006931 (22.09.1988 Gazette 1988/21)
(84) Designated Contracting States:
BE DE FR GB IT

(30) Priority: 13.03.1987 FR 19870003438

(71) Applicant: CATERPILLAR INC.
Peoria Illinois 61629-6490 (US)

(72) Inventor:
  • GARCIA, René, Vincent, Hyacinthe
    F-38660 Le Touvet (FR)

(74) Representative: Wagner, Karl H. 
WAGNER & GEYER Patentanwälte Gewürzmühlstrasse 5
D-80538 München
D-80538 München (DE)

   


(54) PROCESS AND APPARATUS FOR FORGING ONE PIECE TRACK ROLLER RIM