EP 1640507 A1 20060329 - Pile drilling apparatus
Title (en)
Pile drilling apparatus
Title (de)
Pfahlbohrwerkzeug
Title (fr)
Appareil de forage pour pieu
Publication
Application
Priority
EP 04022732 A 20040923
Abstract (en)
The pile boring tool (1) has two cutting edges formed upstream of cutting teeth (3) in the boring direction. The cutting edges are spaced apart from one another to form a central free space. An independent claim is also included for boring apparatus.
IPC 8 full level
CPC (source: EP US)
E02D 5/36 (2013.01 - EP US); E21B 7/006 (2013.01 - EP US)
Citation (applicant)
Citation (search report)
- [XY] GB 774353 A 19570508 - LEON EDMOND CRAPEZ
- [X] US 3529428 A 19700922 - BATTEN JOHN EARL
- [Y] FR 2832438 A1 20030523 - DURMEYER ENTRP TRAVAUX PUBLICS [FR]
- [YA] DE 19517414 A1 19960912 - BILFINGER BERGER BAU [DE]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 009, no. 176 (M - 398) 20 July 1985 (1985-07-20)
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 PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1640507 A1 20060329; JP 2006090120 A 20060406; JP 4031496 B2 20080109; RU 2005127655 A 20070310; RU 2327024 C2 20080620; SG 121098 A1 20060426; US 2006060386 A1 20060323
DOCDB simple family (application)
EP 04022732 A 20040923; JP 2005274895 A 20050922; RU 2005127655 A 20050829; SG 200505670 A 20050907; US 20607805 A 20050818