Global Patent Index - EP 1407838 A3

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

EP 1407838 A3 20051012 (DE)

Application

EP 03014662 A 20030627

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

B21D 41/02; F15B 15/00

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)

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