Patents by Inventor Harold L. Brewer

Harold L. Brewer 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).

  • Seedling detector and ferret
    Patent number: 4607452
    Abstract: A device for detecting a seedling. A row of detectors determine the presence or absence of a seedling at positions in a two dimensional grid, one row at a time. A comb has teeth spaced to fit between rows of the seedlings. Each tooth carries a light source on one side and a light detector on the other. Each light detector receives light from the light source on the adjacent tooth. When a seedling is present, the light is interrupted. A memory stores the position of the present seedlings so that cells having no seedlings may be removed.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: August 26, 1986
    Assignee: The University of Georgia Research Foundation, Inc.
    Inventors: Bryan W. Maw, Harold L. Brewer