Patents by Inventor Gerald W. Criswell, II

Gerald W. Criswell, II 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).

  • Pipe preparation device for soldering or brazing
    Patent number: 4862549
    Abstract: A device for cleaning pipe or tubing and fittings is disclosed consisting of an internal brush for cleaning of fittings and an external brush for cleaning of tube or pipe prior to soldering or brazing. Both brushes are provided in a single tool so that either tube or fitting can be cleaned without changing or reversing the tool. A drive socket is provided on the brush holder shell to permit ready interchangeability of tools and ready selection of drive means between manual and motor driven operation. A selection of drive adaptors is provided.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: September 5, 1989
    Inventors: Gerald W. Criswell, Gerald W. Criswell, II