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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 1230071 A1 20020814 - CHISEL

Title (en)

CHISEL

Title (de)

MEISSEL

Title (fr)

TREPAN

Publication

EP 1230071 A1 20020814 (DE)

Application

EP 00987129 A 20001116

Priority

DE 0003989 W 20001116
DE 19955141 A 19991117
DE 19958490 A 19991204

Abstract (en)

[origin: WO0136163A1] The invention relates to a chisel (1) comprising a chisel head (4), a chisel shank (3) and a clamping shank (2), especially to a flat chisel or pointed chisel that is preferably used in a hammer drill. The inventive chisel shank (3) and/or the chisel head (4) comprise(s) axially extending recesses (7) and/or ribs (6) or webs (6).

IPC 1-7

B25D 17/02; E21B 10/42; E21B 10/36

IPC 8 full level

B25D 17/02 (2006.01); E21B 10/36 (2006.01)

CPC (source: EP)

B25D 17/02 (2013.01); E21B 10/36 (2013.01)

Citation (search report)

See references of WO 0136163A1

Designated contracting state (EPC)

AT BE CH CY DE GB IT LI

DOCDB simple family (publication)

WO 0136163 A1 20010525; DE 10057124 A1 20010523; EP 1230071 A1 20020814

DOCDB simple family (application)

DE 0003989 W 20001116; DE 10057124 A 20001116; EP 00987129 A 20001116