Patents by Inventor Charles R. Echols

Charles R. Echols 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).

  • Tool for installing freeze plugs
    Patent number: 4459730
    Abstract: A centrally oriented circular land for engaging the cylindrical shroud of a freeze plug is disposed on one side of a disc. A partial spherical depression in the other side of the disc interconnects with a spherical member at one end of a driver which interconnection transmits a force applied by the driver through the disc to the freeze plug to seat the freeze plug irrespective of the angular orientation between the respective axis of the driver and the disc.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: July 17, 1984
    Inventor: Charles R. Echols
  • Tool for installing freeze plugs
    Patent number: 4341004
    Abstract: A centrally oriented circular land for engaging the cylindrical shroud of a freeze plug is disposed on one side of a disc. A partial spherical depression in the other side of the disc interconnects with a spherical member at one end of a driver which interconnection transmits a force applied by the driver through the disc to the freeze plug to seat the freeze plug irrespective of the angular orientation between the respective axis of the driver and the disc.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: July 27, 1982
    Inventor: Charles R. Echols