Patents by Inventor Ronald Barthel

Ronald Barthel 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).

  • Crop conditioner
    Patent number: 5269124
    Abstract: A crop conditioner has a frame adapted to travel along the ground, an upstream pair of vertically spaced ribbed rollers to which is supplied a stream of crop to be conditioned, and a downstream pair of ribbed rollers downstream of the upstream pair. A drive counterrotates the upstream rollers at a predetermined speed and thereby takes in the crop stream, conditions it, and puts it out toward the downstream rollers. A drive also counterrotates the downstream rollers at a predetermined speed which is different from the predetermined speed of the upstream rollers and thereby takes in the crop stream from the upstream pair, conditions it, and outputs it, normally laying it back on the ground.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: December 14, 1993
    Assignee: Fortschritt Erntemaschinen GmbH
    Inventors: Ronald Barthel, Karl-Heinz Kretschmer, Martin Schubert, Volker Hanel
  • Cavity mining minerals from subsurface deposit
    Patent number: 4140346
    Abstract: Cavity mining minerals from a subsurface deposit by hydraulically jetting and disintegrating a mineral deposit locally, and transporting lumps and particles to the surface via a borehole.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: February 20, 1979
    Assignee: Shell Oil Company
    Inventor: Ronald Barthel