Patents by Inventor Wallace J. DeVries, Sr.

Wallace J. DeVries, Sr. 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).

  • Demountable multi-row potato combine
    Patent number: 3931857
    Abstract: A conventional two row potato combine basic frame and conveyor structure having removably mounted thereon a four row potato digger apron supported by a removable outboard and inboard frame and support members and having removably mounted onto said frame structure a pair of spaced angularly disposed conveyors converging crop from said multi-row digger apron onto a single elevating conveyor of said basic frame structure.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: January 13, 1976
    Assignee: Dahlman, Inc.
    Inventors: Edward C. O'Hare, Wallace J. DeVries, Sr.