Patents by Inventor Virgil E. Hedgepeth

Virgil E. Hedgepeth 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: 4878786
    Abstract: A drill bit is provided which has a central tine and first and second cutting tines, provided one on each side of the central tine. The lowermost end of each of the cutting tines is sharpened for cutting the stock. Thus the drill bit cores the material to form a hole thereby reducing the amount of material that must be cutaway. Further, the cutting tines are formed so as to have an enlarged distal head so that the main body portion of each of the tines has a slightly smaller cross-section than the cutting head. In this manner, friction can be reduced between the edges of the tines and the edges of the material being worked. Even further, the tine bit includes cutting blades between the central tine and the cutting tines in the event the stock is thicker than the length of the cutting tines.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: November 7, 1989
    Inventor: Virgil E. Hedgepeth
  • Patent number: 4819736
    Abstract: A tool for removing roots and plants from the earth while only minimally disturbing the surrounding area. The tool includes a first, proximal end for attachment to a device for rotating the tool and a second end including a three-tined head. One tine or prong of the three-tined head is longer than the remaining tines and serves to anchor and stabilize the tool in a working position while preventing a vibration or wandering of the tool during rotation. Adjacent prongs or blades rotate about the elongated prong as the body of the tool is rotated and thus disrupt the soil and root system of the undesired plant enabling the plant to be easily removed from the ground.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: April 11, 1989
    Inventor: Virgil E. Hedgepeth