Patents by Inventor Stuart A. Connell

Stuart A. Connell 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).

  • Self positioning dust seal holder
    Patent number: 5269386
    Abstract: A drilling apparatus, having a drilling tower, tiltable for angle drilling, on a drilling platform with an aperture for a drill string, includes a dust seal holder that extends into the aperture in the platform, the dust seal holder being connected to the tower, so as to move up and down in the aperture in an arcuate path along with the drilling tower, as the tower is tilted for angle drilling, the dust seal holder being disconnected from the tower, so as to be not movable, as the tower is moved between a horizontal and vertical position.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: December 14, 1993
    Assignee: Ingersoll-Rand Company
    Inventors: George P. Schivley, Jr., Stuart A. Connell