Global Patent Index - EP 0731252 B1

EP 0731252 B1 20030625 - Boring ram for the destructive replacement of a buried pipe

Title (en)

Boring ram for the destructive replacement of a buried pipe

Title (de)

Rammbohrgerät zum zerstörenden Ersetzen erdverlegter Rohrleitungen

Title (fr)

Mouton de forage pour le remplacement par destruction d'une conduite enterrée

Publication

EP 0731252 B1 20030625 (DE)

Application

EP 96103364 A 19960305

Priority

DE 19508450 A 19950309

Abstract (en)

[origin: EP0731252A2] The drill has a conical point, a breaker head (6) fitted on the point, a pull cable engaging with the point, and a cable cover in the form of an elastic sleeve. The point has an axial opening (3) for a pull cable adaptor (11-13) and a transverse opening for the fastening pin (5) of the adaptor. The adaptor consists of a pull rod (11) with an eye (12) for the fastening pin and a lug on the rod free end protruding out of the head.

IPC 1-7

E21B 29/00; E21B 7/30

IPC 8 full level

E21B 7/30 (2006.01); E21B 29/00 (2006.01); E21D 9/06 (2006.01); F16L 1/024 (2006.01)

CPC (source: EP US)

E21B 7/30 (2013.01 - EP US)

Designated contracting state (EPC)

CH DE FR GB LI

DOCDB simple family (publication)

EP 0731252 A2 19960911; EP 0731252 A3 19971119; EP 0731252 B1 20030625; DE 19508450 A1 19960912; DE 19508450 C2 19970313; DE 59610547 D1 20030731; JP 2727314 B2 19980311; JP H09184579 A 19970715; US 5876152 A 19990302

DOCDB simple family (application)

EP 96103364 A 19960305; DE 19508450 A 19950309; DE 59610547 T 19960305; JP 8198796 A 19960311; US 61255996 A 19960308