Patents by Inventor Clyde H. Dotson

Clyde H. Dotson 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 supporting ventilation curtains in coal mines
    Patent number: 5308280
    Abstract: A hanger for a coal mine ventilation curtain has a support that is compressed against the mine surface, trapping the edge of a sheet of ventilation curtain material between a curtain supporting portion of the support and the mine surface. The support can be held in its compressed position against the mine surface by a tension member, such as a chain, that is attached to the mine surface (most readily at a roof plate) and is then secured to the support. Alternatively, the support can be held in place from the side of the support opposite the mine surface by a compression member (such as an adjustable support pole).
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: May 3, 1994
    Assignee: Curtain Buddy Corp.
    Inventor: Clyde H. Dotson