Patents by Inventor Mathias Andersen

Mathias Andersen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotary earth crumbling implement
    Patent number: 4312410
    Abstract: In a rotary earth crumbler having a central shaft (1) with mounting discs (2) fast thereon and an annular series of U-shaped resilient stirrups (3), the leg portions of these stirrups are formed with an outwardly convex curved section (12) which extends into a fixing slot (11) in the mounting disc and is then locked therein by deformation of parts of the slot borders below the mid portion of the curved section, thereby narrowing said slot. The locking may easily be released when needed, viz. by bringing the slot borders back to the original shape.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: January 26, 1982
    Assignee: Kongskilde Koncernselskab A/S
    Inventors: Helge H. Andersen, Mathias Andersen, Finn Jensen