Patents by Inventor Dennis C. McCourtney

Dennis C. McCourtney 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).

  • Method and apparatus for drilling holes
    Patent number: 5203650
    Abstract: A method and apparatus is disclosed for drilling holes, each having a substantially similar and desired depth. Apparatus 10 includes a limit switch 42 which deactivates motors 20 and 33 and light 34 when the drill motor's travel has reached a predetermined point and correspondingly the drill bit has reached a desired depth.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: April 20, 1993
    Assignee: Everett D. Hougen
    Inventor: Dennis C. McCourtney
  • Rail drill
    Patent number: D365581
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: December 26, 1995
    Assignee: Everett D. Hougen
    Inventor: Dennis C. McCourtney