Patents by Inventor Gerald L. Douglas

Gerald L. Douglas 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).

  • Robotic sod stacker
    Patent number: 7070004
    Abstract: A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: July 4, 2006
    Assignee: Steiner Turf Equipment, Inc.
    Inventors: Emanuel A. Hendriks, Mathias M. Hendriks, Johannes G. Hendriks, Wilhelmus J. Hendriks, David S. Johnsen, Gerald L. Douglas, Frank R. Pohlman, Jr.
  • Robotic sod stacker
    Patent number: 7066277
    Abstract: A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: June 27, 2006
    Assignee: Steiner Turf Equipment, Inc.
    Inventors: Emanuel A. Hendriks, Mathias M. Hendriks, Johannes G. Hendriks, Wilhelmus J. Hendriks, David S. Johnsen, Gerald L. Douglas
  • Robotic sod stacker
    Publication number: 20040188107
    Abstract: A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.
    Type: Application
    Filed: July 15, 2003
    Publication date: September 30, 2004
    Inventors: Emanuel A. Hendriks, Mathias M. Hendriks, Johannes G. Hendriks, Wilhelmus J. Hendriks, David S. Johnsen, Gerald l. Douglas