EP 0548615 B1 19961016 - Knife having a spiral cutting edge
Title (en)
Knife having a spiral cutting edge
Title (de)
Messer mit einer spiralförmigen Schneidkante
Title (fr)
Couteau ayant une lame en forme de spirale
Publication
Application
Priority
DE 4142937 A 19911224
Abstract (en)
[origin: US5291815A] For dividing a chunk of material which comprises areas tending to deform as well as rigid areas, a cutter with a spiral cutting edge is provided. The cutting edge has two sections of which the first in the direction of rotation, is unserrated and undergoes a relatively rapid increase of radius. The second section in the direction of rotation is serrated and follows a minimal increase of radius. With a cutter thus designed, material can be cut smoothly in the region of its deformable portion and can be sawed just as smoothly in the region of its rigid portion.
IPC 1-7
IPC 8 full level
B26D 1/00 (2006.01)
CPC (source: EP US)
B26D 1/0006 (2013.01 - EP US); B26D 2001/0046 (2013.01 - EP US); B26D 2001/006 (2013.01 - EP US); Y10T 83/8796 (2015.04 - EP US); Y10T 83/9324 (2015.04 - EP US); Y10T 83/9372 (2015.04 - EP US)
Designated contracting state (EPC)
DE DK ES FR GB IT SE
DOCDB simple family (publication)
DE 4142937 C1 19921224; DE 59207379 D1 19961121; DK 0548615 T3 19970324; EP 0548615 A1 19930630; EP 0548615 B1 19961016; ES 2093167 T3 19961216; US 5291815 A 19940308
DOCDB simple family (application)
DE 4142937 A 19911224; DE 59207379 T 19921203; DK 92120614 T 19921203; EP 92120614 A 19921203; ES 92120614 T 19921203; US 99198792 A 19921217