Global Patent Index - EP 1016478 A1

EP 1016478 A1 2000-07-05 - Method for forming cavities in construction elements

Title (en)

Method for forming cavities in construction elements

Title (de)

Verfahren zur Ausbildung von Hohlräumen in Bauteilen

Title (fr)

Procédé de formation de cavités dans des éléments de construction

Publication

EP 1016478 A1 (DE)

Application

EP 98124867 A

Priority

EP 98124867 A

Abstract (en)

To form hollow zones in molded components, of metal alloys, the hollow is produced by the insertion of a hollow insert body. The insert is shaped by molding molten metal, or by forging. The insert is a near netting of a metal alloy, or a ceramic which can be melted, or it is a molded grid foam with closed or open pores. The insert can be produced by sand molds, gravity molds, thixo molding or forging, die casting, low pressure casting, counter-pressure casting, or vacuum casting.

Abstract (de)

Bei einem Verfahren zur Ausbildung von Hohlräumen in, insbesondere durch Gießen, herzustellenden Bauteilen, die vorzugsweise aus Metall-Legierungen geformt werden, wird derart vorgegangen, daß der im herzustellenden Bauteil jeweils vorzusehende Hohlraum als Hohlkörper in Form eines hohlen Einlagekörpers ausgebildet wird, der seinerseits durch eine Schmelze gegossen bzw. durch Schmieden geformt wird.

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

B22D 19/00

IPC 8 full level (invention and additional information)

B22D 19/00 (2006.01)

CPC (invention and additional information)

B22D 19/00 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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

EPO simple patent family

EP 1016478 A1 20000705

INPADOC legal status


2002-01-03 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2001-11-21 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010106

2001-03-14 [AKX] PAYMENT OF DESIGNATION FEES

2000-07-05 [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

2000-07-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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