Global Patent Index - EP 1083297 A2

EP 1083297 A2 2001-03-14 - Apparatus for freeing an object underground, and the application of such apparatus

Title (en)

Apparatus for freeing an object underground, and the application of such apparatus

Title (de)

Gerät zum Lösen eines sich im Erdreich befindenden Gegenstandes und die Verwendung dieses Geräts

Title (fr)

Appareil de dégagement d'un objet enterré et l'application d'un tel appareil

Publication

EP 1083297 A2 (EN)

Application

EP 00203119 A

Priority

NL 1013025 A

Abstract (en)

The invention relates to a method for freeing an object underground, such as a pipe or a drilling rod used for horizontal drilling. The apparatus according to the invention comprises a body (1) having an opening for receiving the object (A) to be freed. The body is provided in the circumferential direction of object (A) with soil material-loosening means (3). These soil material-loosening means (3) are for example nozzles through which an aqueous solution is spurted. <IMAGE>

IPC 1-7 (main, further and additional classification)

E21B 31/03

IPC 8 full level (invention and additional information)

E21B 31/00 (2006.01); E21B 31/03 (2006.01)

CPC (invention and additional information)

E21B 31/00 (2013.01); E21B 31/03 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1083297 A2 20010314; EP 1083297 A3 20030326; NL 1013025 C2 20010313

INPADOC legal status


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2003-03-26 [RIC1] CLASSIFICATION (CORRECTION)

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