EP 1008721 B1 20020821 - Cutting or crushing tool and cutting insert therefor
Title (en)
Cutting or crushing tool and cutting insert therefor
Title (de)
Schneid- oder Brechwerkzeug sowie Schneideinsatz für dieses
Title (fr)
Outil de coupe ou de creusement et plaquette de coupe associée
Publication
Application
Priority
DE 19857451 A 19981212
Abstract (en)
[origin: EP1008721A1] Clearing surfaces (5), spread round the crossover part of the cutter tip (1), adjoin one another to form clearing and cutting edges (6). The surfaces are concave and so angled as to form an acute angle (alpha) with the tool axis (7). The surfaces are radiused where they enter the foot (4). The head of the tool body also has surfaces (13) spread round it, also adjoining to form edges (14) and the clearing and cutting edges of the cutter tip are offset to those of the tool body.
IPC 1-7
IPC 8 full level
E21B 10/46 (2006.01); E21B 10/56 (2006.01); E21C 35/183 (2006.01); E21C 35/18 (2006.01)
CPC (source: EP US)
E21C 35/183 (2013.01 - EP US); E21C 35/1837 (2020.05 - EP); E21C 35/188 (2020.05 - EP); E21C 35/1837 (2020.05 - US); E21C 35/188 (2020.05 - US); Y10T 407/12 (2015.01 - EP US); Y10T 407/1962 (2015.01 - EP US); Y10T 407/235 (2015.01 - EP US)
Citation (examination)
US 3833264 A 19740903 - ELDERS G
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
EP 1008721 A1 20000614; EP 1008721 B1 20020821; DE 19857451 A1 20000615; DE 59902407 D1 20020926; ES 2182450 T3 20030301; JP 2000179275 A 20000627; US 2002164215 A1 20021107; US 6354771 B1 20020312; US 7455484 B2 20081125
DOCDB simple family (application)
EP 99124172 A 19991203; DE 19857451 A 19981212; DE 59902407 T 19991203; ES 99124172 T 19991203; JP 35206399 A 19991210; US 415401 A 20011030; US 45313299 A 19991202