EP 3415250 A1 20181219 - CASTING CORE WITH CROSSOVER BRIDGE
Title (en)
CASTING CORE WITH CROSSOVER BRIDGE
Title (de)
GUSSKERN MIT ÜBERGANGSBRÜCKE
Title (fr)
NOYAU DE COULAGE AVEC PONT DE CROISEMENT
Publication
Application
Priority
EP 17176183 A 20170615
Abstract (en)
The present invention concerns a casting core (1) for use in investment casting comprising at least one gap (11) between two separate core material parts (12, 13) which define separate adjacent cavities in the finished product, wherein the two core material parts (12, 13) are connected by at least one crossover bridge (15) fixing the position of the two core material parts (12, 13) relative to each other, wherein the crossover bridge (15) has a cross section (20) whose wall contour (21) has at least one convex and at least one concave section (31, 32).
IPC 8 full level
CPC (source: EP US)
B22C 7/02 (2013.01 - EP US); B22C 9/10 (2013.01 - EP US); B22C 9/22 (2013.01 - EP US)
Citation (search report)
- [XA] EP 2469035 A2 20120627 - UNITED TECHNOLOGIES CORP [US]
- [X] US 2013280093 A1 20131024 - ZELESKY MARK F [US], et al
- [A] US 5296308 A 19940322 - CACCAVALE CHARLES F [US], et al
- [A] US 9566642 B2 20170214 - LEE CHING-PANG [US], et al
- [A] US 2010034662 A1 20100211 - JENDRIX RICHARD W [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 17176183 A 20170615; US 201816000945 A 20180606