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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

EP 0336783 A2 19891011 (EN)

Application

EP 89303585 A 19890410

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

B21C 37/20; B21K 1/56

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