Patents by Inventor Robert C. Hays

Robert C. Hays 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).

  • Soil pulverizing mill
    Patent number: 4592515
    Abstract: A compact, portable pulverizing apparatus having a plurality of beater-bars (14) rotatably mounted to a plurality of support rods (16). The support rods (16) are eccentrically disposed about the periphery of two support disks (17). The support disks (17) are driven by a drive shaft (19) that connects to a power unit (13). The beater-bars (14) are supported about a sole plate (22) having an opening (23) disposed therethrough to allow the beater-bars (14) to contact the material to be pulverized. Handles (24) are connected to the sole plate (22) to allow it to be moved about as desired.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: June 3, 1986
    Assignee: The United States of American as represented by the Secretary of the Interior
    Inventor: Robert C. Hays