Patents by Inventor Dorwin J. Sheathelm

Dorwin J. Sheathelm 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: 4129186
    Abstract: A bean puller or harvester of the front end carriage mountable type and including driven cutting discs, the cutting discs running in a substantially horizontal plane and running slightly beneath the ground surface. The drive units run the discs in opposite adjacent rotational directions to urge the severed plants toward a windrow intermediate a pair of adjacent rows. The preferred drive is hydraulic for the discs and the preferred disc form is a scalloped type. Variances in adjustment and interval are available and gage wheels maintain a constancy or running depth for each of the discs. Drive units are supported in selected intervals on a horizontal mounting bar which may be raised and lowered independent of adjustments for running depth and tilt angle.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: December 12, 1978
    Inventor: Dorwin J. Sheathelm