Global Patent Index - EP 0988142 A1

EP 0988142 A1 2000-03-29 - IMPACTING METHOD AND MACHINE FOR FORMING COMPACTS

Title (en)

IMPACTING METHOD AND MACHINE FOR FORMING COMPACTS

Title (de)

SCHLAGVERFAHREN UND VORRICHTUNG ZUM HERSTELLEN VON PRESSLINGEN

Title (fr)

MACHINE A PERCUSSION ET SON PROCEDE POUR LA FABRICATION DE PASTILLES

Publication

EP 0988142 A1 (EN)

Application

EP 99911435 A

Priority

  • US 9905756 W
  • US 5681998 A

Abstract (en)

[origin: WO9951426A1] A process and apparatus for producing solid articles from loose particulate materials that are particularly useful in the production of green compacts used in sintering processes. A charge (30) is formed by charging a mass of loose particulate material into the cavity (34) of a die between opposed first (28) and second die (128) punches, operably disposed to slide within the cavity (34), and limited to reciprocating motion in a linear direction. The first (28) and second die (128) punches are preloaded against the charge (30) and then first and second cyclically reciprocating impacting forces are applied to the first (28) and second (128) die punches, respectively, along the linear direction while holding the die (26) fixed so as to prevent damping of the impacting forces. The first and second cyclical reciprocating impacting forces may be substantially equal and may be substantially asynchronous or synchronous.

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

B30B 11/02; B22F 3/03; B22F 3/093; B23B 27/14; B24D 7/02

IPC 8 full level (invention and additional information)

B22F 3/03 (2006.01); B22F 3/093 (2006.01); B23B 27/14 (2006.01); B23P 15/28 (2006.01); B24D 7/02 (2006.01); B24D 18/00 (2006.01); B30B 11/02 (2006.01)

CPC (invention and additional information)

B23B 27/143 (2013.01); B22F 3/093 (2013.01); B24D 7/02 (2013.01); B24D 18/0009 (2013.01); B30B 11/02 (2013.01); B30B 11/022 (2013.01)

Citation (search report)

See references of WO 9951426A1

Designated contracting state (EPC)

AT DE GB SE

EPO simple patent family

WO 9951426 A1 19991014; CA 2291091 A1 19991014; CN 1263497 A 20000816; EP 0988142 A1 20000329; IL 133033 D0 20010319; JP 2002514270 A 20020514

INPADOC legal status


2002-12-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020605

2002-03-13 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020125

2000-03-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991119

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE GB SE