Global Patent Index - EP 0978332 A1

EP 0978332 A1 2000-02-09 - Multi-cylinder metal-extrusion press

Title (en)

Multi-cylinder metal-extrusion press

Title (de)

Mehrzylinder-Metallstrangpresse

Title (fr)

Presse d'extrusion de métaux à plusieurs cylindres

Publication

EP 0978332 A1 (DE)

Application

EP 98114856 A

Priority

  • EP 98114856 A
  • DE 19835717 A
  • US 40158299 A

Abstract (en)

Multicylinder metal rod press comprises a fixed cylinder string piece (1) formed as support of the pressing tool (11). The pressing pistons (31) arranged in the pressing cylinders (32) of the string piece (1) on the side opposite the acting surface are connected to filling bodies (40) spanning the free cylinder space (32R, 62R) up to one of the acting surfaces of the pressing pistons and the cylinder ends (36). The filling bodies (40) are bound between the pressing pistons and the cylinder ends.

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

B21C 23/21

IPC 8 full level (invention and additional information)

B21C 23/21 (2006.01)

CPC (invention and additional information)

B21C 23/21 (2013.01); B21C 23/211 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family

DE 19835717 A1 20000217; DE 59800379 D1 20010111; EP 0978332 A1 20000209; EP 0978332 B1 20001206; ES 2153228 T3 20010216; US 6082162 A 20000704