EP 0940228 B1 20040218 - Screw extractor
Title (en)
Screw extractor
Title (de)
Schraubenausdreher
Title (fr)
Extracteur de goujons
Publication
Application
Priority
DE 19809252 A 19980305
Abstract (en)
[origin: EP0940228A2] The screw extractor (1) has a notch to increase the torque introduced into the screw stub. This notch has a clamp flank (14) as leading flank, which is formed by a number of closely neighbouring faces with the triangular cross sections of a multi-pitch triangular thread. The notch cuts across the threads (7) non-centrally and offset, so that the angle between the clamp flank and the tangent on the circumferential edge of the clamp flank is 90 degrees plus/minus 20 degrees .
IPC 1-7
IPC 8 full level
B25B 27/18 (2006.01)
CPC (source: EP)
B25B 27/18 (2013.01)
Designated contracting state (EPC)
AT CH DE DK ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0940228 A2 19990908; EP 0940228 A3 20030115; EP 0940228 B1 20040218; AT E259692 T1 20040315; DE 19809252 A1 19990916; DE 19809252 C2 20000406; DE 59908542 D1 20040325
DOCDB simple family (application)
EP 99104364 A 19990304; AT 99104364 T 19990304; DE 19809252 A 19980305; DE 59908542 T 19990304