EP 0336783 A2 19891011 - Producing a thread on a tube.
Title (en)
Producing a thread on a tube.
Title (de)
Herstellung eines Gewindes auf einem Rohr.
Title (fr)
Fabrication d'un filet sur un tube.
Publication
Application
Priority
- GB 8808289 A 19880408
- GB 8808565 A 19880412
Abstract (en)
"A method of and apparatus for producing a formation such as a screw thread (27) on a tube (2) comprising the steps of forcing a surface of the tube such as by a mandrel (18) against a pattern member (4, 5) having a pattern thereon so as to displace the material of the tube (2) into the pattern to form the formation on the surface of the tube."
IPC 1-7
IPC 8 full level
B21C 37/20 (2006.01); B21K 1/56 (2006.01)
CPC (source: EP)
B21C 37/207 (2013.01); B21K 1/56 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0336783 A2 19891011; EP 0336783 A3 19901122; GB 2220160 A 19900104; GB 8908025 D0 19890524
DOCDB simple family (application)
EP 89303585 A 19890410; GB 8908025 A 19890410