Patents by Inventor Raymond E. Ballew

Raymond E. Ballew 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).

  • Pipeline padding apparatus
    Patent number: 5493796
    Abstract: A backhoe operated bucket is provided with an opening containing a screen frame opposite its scraper blade equipped loading opening for separating coarse material contained by soil excavated from a pipeline ditch and depositing fine padding soil on a pipeline in the ditch. A motor driven eccentric supported by the screen frame vibrates the screen frame in several directions to achieve a separation of fine and coarse material, the latter being deposited in the ditch above the padding soil.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: February 27, 1996
    Inventors: Raymond E. Ballew, Houston T. Barnes