Patents by Inventor Winfreid Scheid

Winfreid Scheid 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).

  • Drilling machine with changeable drive unit
    Patent number: 6263985
    Abstract: A double-head drilling machine is disclosed, which by changing over or converting small component units can cooperate with drill or drill pipes of different diameters. To this end, drive carriages (16) operating on drills or drill pipes, for example, comprise a carriage base element (32), to which a drive unit (42) is releasably fitted. The drive unit (42) can thus be replaced by a different drive unit having essentially the same geometry, which is designed for operating with a drill or drill pipe having a different diameter.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: July 24, 2001
    Assignee: Delmag Maschinenfabrik Reinhold Dornfeld GmbH & Co.
    Inventors: Winfreid Scheid, Nikodemus Heinz