Patents by Inventor Dan R. Field

Dan R. Field 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).

  • Grass seed cleaner
    Patent number: 4911827
    Abstract: Fluffy grass seed with accompanying coarse trash and fine trash are placed upon the top of a vibrating screen. The fluffy grass seed are enmeshed in the meshes of the screen while the fine trash falls through the screen and the coarse trash is loose upon the top of the screen. The coarse trash is dumped from the screen by inverting the screen. Thereafter the fluffy seed are doffed from the screen by brushes.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: March 27, 1990
    Assignees: Danny L. Ryan, Dan R. Field, Mike T. Field
    Inventors: Danny L. Ryan, Dan R. Field