Edge-serrating Patents (Class 76/89.1)
  • Blades and knives for agricultural machines having a toothing being varied along a length
    Patent number: 11963479
    Abstract: A knife and blade for agricultural machines, in particular mower knife blades, straw chopper knives, corn header knives, feed mixer knives, loader wagon knives and baler knives, has at least one toothed cutting edge extending from a cutting edge beginning to a cutting edge end on a blade surface. The cutting edge has a straight or curved configuration and the blade surface has a mounting section. The toothing of the cutting edge is varied along its length with regard to the tooth pitch and/or the tooth geometry.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: April 23, 2024
    Assignee: Gebrüder Busatis Gesellschaft m.b.H.
    Inventor: Wolfgang Lutz
  • METHOD FOR BIOPSY DEVICE NEEDLE TIP
    Publication number: 20080280540
    Abstract: A biopsy device having a cannula with a distal tip is disclosed. The distal tip includes a blade, and can be a unitary metal injection molded component including a base and a blade. The blade can have a hardness of at least 40 HRC. The blade can be hardened, polished, and then honed to provide a sharp leading edge.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 13, 2008
    Inventor: Michael E. JOHNSON