EP 0987090 A3 20011017 - Process and device for making a tubular article , in particular a fence
Title (en)
Process and device for making a tubular article , in particular a fence
Title (de)
Verfahren und Vorrichtung zur Herstellung eines rohrförmigen Körpers, insbesondere einer Palisade
Title (fr)
Procédé et dispositif pour la fabrication d'un article tubulaire , en particulier d'une palissade
Publication
Application
Priority
DE 19842970 A 19980919
Abstract (en)
[origin: DE19842970C1] The method of forming a fence post involves forming a hollow body by extrusion, into which a ceramic infill is pressed. Following forming of the base, the walls of the post body are formed, as the ceramic mass is fed into the base form piece and the base. During the operation fluid is fed into the interior of the body. The claims include a machine for forming the post.
IPC 1-7
IPC 8 full level
B28B 3/26 (2006.01)
CPC (source: EP)
B28B 3/2627 (2013.01)
Citation (search report)
- [XY] US 4256686 A 19810317 - FROSCHAUER LEONHARD E, et al
- [X] JP S6285906 A 19870420 - NGK INSULATORS LTD & DATABASE WPI Derwent World Patents Index; AN 1987-147604, XP002175376
- [X] EP 0331388 A1 19890906 - NGK INSULATORS LTD [JP]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 015, no. 443 (M - 1178) 12 November 1991 (1991-11-12)
- [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 323 (M - 0997) 11 July 1990 (1990-07-11)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19842970 C1 20000105; EP 0987090 A2 20000322; EP 0987090 A3 20011017
DOCDB simple family (application)
DE 19842970 A 19980919; EP 99117088 A 19990831