EP 0073298 A3 19830824 - LOWER MOULD FOR AN EXTRUSION APPARATUS FOR MAKING CONCRETE ROOFING TILES
Title (en)
LOWER MOULD FOR AN EXTRUSION APPARATUS FOR MAKING CONCRETE ROOFING TILES
Publication
Application
Priority
DE 3133290 A 19810822
Abstract (en)
[origin: EP0073298A2] 1. A pallet for making concrete roofing tiles in an extrusion process, consisting of an upper shell (10) and a lower shell (20), which are made of pressed sheet steel and welded together, the upper shell (10) having a central bulge (30) extending in longitudinal direction, characterized in that the upper shell (10) has on each of its two longitudinal sides an edge bulge (37 or 39 respectively) and that the lower shell (20) has at least two transverse grooves (40) which extend in their height up to the upper shell (10) and which are connected with the upper shell (10) at flat parts (31) located between the central bulge (30) and the edge bulges (37, 39) by spot welding.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B28B 7/0055 (2013.01); B28B 7/34 (2013.01)
Citation (search report)
- AT 180886 B 19550125 - CZETTEL RUDOLF
- GB 663310 A 19511219 - MARLEY TILE CO LTD, et al
- DE 2912080 A1 19801016 - UPJOHN CO
Designated contracting state (EPC)
AT BE DE FR IT LU NL SE
DOCDB simple family (publication)
EP 0073298 A2 19830309; EP 0073298 A3 19830824; EP 0073298 B1 19860806; AT E21225 T1 19860815; DE 3133290 A1 19830303; DE 3272444 D1 19860911; DK 154995 B 19890123; DK 154995 C 19890529; DK 243382 A 19830223; NO 156321 B 19870525; NO 156321 C 19870902; NO 821770 L 19830223
DOCDB simple family (application)
EP 82104498 A 19820522; AT 82104498 T 19820522; DE 3133290 A 19810822; DE 3272444 T 19820522; DK 243382 A 19820528; NO 821770 A 19820527