EP 0029133 B1 19840208 - PROCESS AND APPARATUS FOR THE PRODUCTION OF A FOUNDRY MOULD
Title (en)
PROCESS AND APPARATUS FOR THE PRODUCTION OF A FOUNDRY MOULD
Publication
Application
Priority
CH 979779 A 19791101
Abstract (en)
[origin: US4357984A] A mold filling and compacting method includes forming a compact body of mold substance such as sand in an intermediate container and then abruptly opening the bottom closure of the container while releasing the sand, as a compact mass, so that it drops as a packet into the mold box, compacting itself effectively around a pattern arrangement. Specific techniques for releasing, including sudden lifting, sudden dropping and separating the container parts are disclosed as well as apparatus for performing the method.
IPC 1-7
IPC 8 full level
B22C 5/00 (2006.01); B22C 5/12 (2006.01); B22C 15/24 (2006.01)
CPC (source: EP US)
B22C 5/12 (2013.01 - EP US)
Citation (examination)
"LITJNDE PROIZVODSTVO in Deutsch" Jahrgang 1962, S. 38/39
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0029133 A1 19810527; EP 0029133 B1 19840208; AT E6133 T1 19840215; CA 1175631 A 19841009; CH 646351 A5 19841130; DE 3066515 D1 19840315; JP S56128644 A 19811008; US 4357984 A 19821109
DOCDB simple family (application)
EP 80106552 A 19801025; AT 80106552 T 19801025; CA 363789 A 19801031; CH 979779 A 19791101; DE 3066515 T 19801025; JP 15238580 A 19801031; US 20274980 A 19801031