EP 0324840 B1 19930120 - METHOD AND DEVICE FOR FABRICATING MOULDS FROM GRANULAR MATERIAL
Title (en)
METHOD AND DEVICE FOR FABRICATING MOULDS FROM GRANULAR MATERIAL
Publication
Application
Priority
FR 8710514 A 19870722
Abstract (en)
[origin: WO8900467A1] The present method provides for the making of blocks shaped on two faces by means of model plates (10, 11). After depression of the plates, the envelope (17) sealed at (40) containing the granular material (30) is, in its turn, subjected to depression through the tubes (23) and (24) of the armature. The plates are then removed, as shown on the drawing, while the internal depression is mantained. The blocks are juxtaposed, and two adjacents blocks will form a print and their free faces will enable the making of two more with two additional blocks. Thus, (n-1) prints will be obtained for n blocks.
IPC 1-7
IPC 8 full level
B22C 9/00 (2006.01); B22C 9/02 (2006.01); B22C 9/03 (2006.01); B22C 11/10 (2006.01); B22C 21/02 (2006.01)
CPC (source: EP US)
B22C 9/03 (2013.01 - EP US); B22C 11/10 (2013.01 - EP US); B22C 21/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8900467 A1 19890126; AT E84736 T1 19930215; AU 2121688 A 19890213; CA 1334782 C 19950321; DE 3877736 D1 19930304; DE 3877736 T2 19930819; EP 0324840 A1 19890726; EP 0324840 B1 19930120; FR 2618358 A1 19890127; FR 2618358 B1 19910118; JP H02500096 A 19900118; US 4940071 A 19900710
DOCDB simple family (application)
FR 8800377 W 19880720; AT 88907004 T 19880720; AU 2121688 A 19880720; CA 588173 A 19890113; DE 3877736 T 19880720; EP 88907004 A 19880720; FR 8710514 A 19870722; JP 50622188 A 19880720; US 35073489 A 19890306