Patents by Inventor Carl Firestone

Carl Firestone 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).

  • Apparatus for repairing high temperature process vessels
    Patent number: 6034345
    Abstract: An apparatus for repairing high temperature process vessels while at or near their operating temperatures, which may be up to 3000.degree. F. The apparatus includes a lance, a welding apparatus at the distal end of the lance, and power supply and control cabling within the lance. The welding apparatus is contained within a protective housing and both the lance and the housing may be either air- or water-cooled.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: March 7, 2000
    Assignee: Hot Tech Inc.
    Inventor: Carl Firestone