EP 1362159 A4 20050713 - SHOE WITH EARTH FORMATION DISIPLACING STRUCTURE
Title (en)
SHOE WITH EARTH FORMATION DISIPLACING STRUCTURE
Title (de)
SCHUH MIT ERDREICHVERDRÄNGENDER STRUKTUR
Title (fr)
SABOT COMPRENANT UNE STRUCTURE DE DEPLACEMENT DE FORMATION DE TERRAIN
Publication
Application
Priority
US 0105464 W 20010221
Abstract (en)
[origin: WO02068790A1] A drive shoe (10) for penetrating soil is a larger size than a conductor pipe (11) and connected to the bottom section of the conductor pipe. An exterior band (40) is mounted on the outer diameter and proximate the lower end of the drive shoe. Teeth (28) are spaced at a predetermined interval and extending form and forming the bottom of the drive shoe to enhance penetration into earth formations. The teeth (28) are formed by cutting a beveled section such that the bevel is angled from the drive shoe outer surface towards the drive shoe inner surface. The drive shoe may also have an inner band (41) mounted on the inner surface to further compress the soil away form the interior surface of the drive shoe.
IPC 1-7
IPC 8 full level
E21B 7/20 (2006.01); E21B 17/14 (2006.01)
CPC (source: EP)
E21B 7/205 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 02068790A1
Designated contracting state (EPC)
AT BE CH DK GB LI NL
DOCDB simple family (publication)
WO 02068790 A1 20020906; DK 1362159 T3 20080102; EP 1362159 A1 20031119; EP 1362159 A4 20050713; EP 1362159 B1 20070425
DOCDB simple family (application)
US 0105464 W 20010221; DK 01911022 T 20010221; EP 01911022 A 20010221