Patents by Inventor Leander O. Walen

Leander O. Walen 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).

  • Patent number: 4646553
    Abstract: The invention comprises a hydraulic press for attachment to one of a plurality of shanks of an earth working implement. The press has a lateral base with a pair of spaced notches which form channels for the shank to be positioned in when the press is attached to the shank. A hydraulic cylinder has one end pivotally mounted to the frame of the press and its other end hydraulically actuates a piston which upon actuation telescopes the piston toward the shank intermediately between the spaced notches to engage the shank between the spaced notches, with the notches restraining outer portions of the shank against movement with the piston as it moves, while the piston moves against the intermediate portion and moves the intermediate portion thereby bending the shank.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: March 3, 1987
    Inventors: Jerold W. Tufte, Leander O. Walen