Patents by Inventor Clarence L. Stepp

Clarence L. Stepp 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).

  • Apparatus for cutting hard earth formations
    Patent number: 4244625
    Abstract: The chain link conveyor assembly of an earth cutting machine is provided with means for mounting the conical cutting bits at a penetration angle on the range of 47.degree. to 53.degree. and a sideward angle in the range of 3.degree. to 12.degree.. Even bit wear is best promoted at penetration and sideward angles of 50.degree. and 71/2.degree., respectively.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: January 13, 1981
    Assignee: Boring & Tunneling Company of America, Inc.
    Inventors: Gilbert M. Turner, Clarence L. Stepp
  • Chain link conveyor apparatus for cutting hard earth formations
    Patent number: 3954301
    Abstract: A mechanism for cutting hard earth formations such as rock comprises a prime mover vehicle such as a crawler tractor having a back plate fixed thereto. An elongated cutter bar framework is secured to the back plate in pivotal manner by means of a tool bar structure that is pivoted directly to the back plate. A motor mechanism such as a linear fluid motor is interconnected between the tool bar and the vehicle structure and is controllably operative for establishing particular angular relationships of the cutter bar framework relative to the formation to be cut and having the effect of controlling the depth of the cut being made.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: May 4, 1976
    Assignee: Boring & Tunneling Co. of America, Inc.
    Inventor: Clarence L. Stepp