US 11,963,479 B2
Blades and knives for agricultural machines having a toothing being varied along a length
Wolfgang Lutz, Wieselburg (AT)
Assigned to Gebrüder Busatis Gesellschaft m.b.H., Purgstall an der Erlauf (AT)
Filed by Gebrueder Busatis Gesellschaft m.b.H., Purgstall an der Erlauf (AT)
Filed on Oct. 7, 2020, as Appl. No. 17/064,658.
Claims priority of application No. A 50852/2019 (AT), filed on Oct. 8, 2019.
Prior Publication US 2021/0100164 A1, Apr. 8, 2021
Int. Cl. A01D 34/73 (2006.01); A01D 41/14 (2006.01); A01F 12/40 (2006.01); A01F 29/02 (2006.01); A01F 29/09 (2010.01)
CPC A01D 34/736 (2013.01) [A01D 41/14 (2013.01); A01F 12/40 (2013.01); A01F 29/02 (2013.01); A01F 29/095 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A knife and blade for agricultural machines, the knife and blade comprising:
a blade surface having a mounting section; and
at least one toothed cutting edge extending from a cutting edge beginning to a cutting edge end on said blade surface, said at least one toothed cutting edge having a straight or curved configuration, said at least one toothed cutting edge having a toothing being varied along its length with regard to a tooth pitch and/or a tooth geometry, wherein:
the tooth pitch is configured to decrease continuously at a constant rate of change from said cutting edge beginning toward said cutting edge end; or
the tooth pitch is configured to increase continuously at a constant rate of change from said cutting edge beginning towards said cutting edge end.