Patents by Inventor A. Earl Smith

A. Earl Smith 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).

  • Patent number: 4869115
    Abstract: The present invention entails an automatic soil sampling machine that is pulled through the field by a prime mover. A disk is utilized and is power driven by an internal combustion engine or other power source. About the outer circumference of the disk there is provided structure that effectively engages the soil as the disk is powered therethrough and flings the soil upwardly out of the ground into a rooster tail airborne configuration. A catching basket or container is mounted on the soil sampling machine and catches the soil particles being flung from the ground.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: September 26, 1989
    Inventors: Robert D. Edwards, A. Earl Smith