Patents by Inventor Randall P. Robarge

Randall P. Robarge 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).

  • Valve nut removal and replacement system
    Patent number: 7496999
    Abstract: A valve nut removal and replacement system including a plurality of associated tools and methods used for above ground access to, replacement of, and maintenance of worn, misshaped, abused or otherwise faulty valve nuts located at a subsurface location. A system is provided including tool components, many of which can be configured for multiple uses. The system provides for the cleaning and removal of a retainer nut, for the removal of a damaged valve nut, and for the installation and securing of a new valve nut from a remote above ground location.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: March 3, 2009
    Inventor: Randall P. Robarge
  • Valve nut removal and replacement system
    Publication number: 20080222867
    Abstract: A valve nut removal and replacement system including a plurality of associated tools and methods used for above ground access to, replacement of, and maintenance of worn, misshaped, abused or otherwise faulty valve nuts located at a subsurface location. A system is provided including tool components, many of which can be configured for multiple uses. The system provides for the cleaning and removal of a retainer nut, for the removal of a damaged valve nut, and for the installation and securing of a new valve nut from a remote above ground location.
    Type: Application
    Filed: April 5, 2007
    Publication date: September 18, 2008
    Inventor: Randall P. Robarge