EP 0133687 A3 19860917 - METHOD AND APPARATUS FOR EXPANDING HEAT EXCHANGER TUBES
Title (en)
METHOD AND APPARATUS FOR EXPANDING HEAT EXCHANGER TUBES
Publication
Application
Priority
JP 14399583 A 19830805
Abstract (en)
[origin: EP0133687A2] A heat exchanger tube is expanded externally, for instance for connecting it with a plate perimetrically of a hole in the plate through which it passes, by forcing through the bore of the tube a series of at least two expanders of progressively larger size. These expanders are secured on a tool steel rod so far apart from one another than before a trailing expander engages in the bore of the tube, the expander which led it has already emerged from the far end of the tube.
IPC 1-7
IPC 8 full level
B21D 39/08 (2006.01); B21D 53/08 (2006.01)
CPC (source: EP)
B21D 53/085 (2013.01)
Citation (search report)
- [X] GB 191110223 A 19121127 - BRITISH STILL TUBE COMPANY LTD, et al
- [A] GB 497318 A 19381216 - LOUVROIL MONTBARD AULNOYE SA
- [A] FR 1510577 A 19680119 - HUDSON ENGINEERING CORP
- [A] FR 2380088 A1 19780908 - THERMAL WAERME KAELTE KLIMA [DE]
- [A] GB 815096 A 19590617 - LICENCIA TALALMANYOKAT
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0133687 A2 19850306; EP 0133687 A3 19860917; JP S6033837 A 19850221
DOCDB simple family (application)
EP 84109179 A 19840802; JP 14399583 A 19830805