EP 1407838 A3 20051012 - Expanding tool for hollow bodies with an electrohydraulic drive
Title (en)
Expanding tool for hollow bodies with an electrohydraulic drive
Title (de)
Expansionswerkzeug für Hohlkörper mit einem elektrohydraulischen Antrieb
Title (fr)
Outil d' expansion de corps creux avec entraînement électro-hydraulique
Publication
Application
Priority
DE 10247549 A 20021011
Abstract (en)
[origin: EP1407838A2] An expansion tool for a hollow body, especially for tubes comprising an electric motor (2), hydraulic pump, work cylinder (10), piston(11) and rod (12) overpressure valve (27) and hydraulic fluid store (6) has a stay reversibly connected to the piston rod which can be changed to other geometries (14a,b) and an adjustable buffer (20).
IPC 1-7
IPC 8 full level
B21D 41/02 (2006.01); F15B 1/02 (2006.01); F15B 15/18 (2006.01)
CPC (source: EP)
B21D 41/02 (2013.01); F15B 1/024 (2013.01); F15B 15/18 (2013.01)
Citation (search report)
- [DY] US 5125324 A 19920630 - ARAKI MASAHARU [JP], et al
- [Y] US 3385087 A 19680528 - HUTH GERALD W
- [A] US 4010630 A 19770308 - DAVIS JR SAMUEL B, et al
- [A] US 3995703 A 19761207 - WANNER KARL
- [A] US 4494398 A 19850122 - SVOBODA EDWARD J [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1407838 A2 20040414; EP 1407838 A3 20051012; DE 10247549 B3 20040506
DOCDB simple family (application)
EP 03014662 A 20030627; DE 10247549 A 20021011