Patents by Inventor David E. Vice

David E. Vice 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).

  • Method and apparatus for conditioning and using furnace off-gases in a scrap preheating apparatus
    Patent number: 5581574
    Abstract: A preheat system for a furnace comprising a preheat vessel on a rotating turret and a receiving chamber for conditioning furnace off-gases prior to use in preheating.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: December 3, 1996
    Assignee: Technology Holdings, Inc.
    Inventor: David E. Vice
  • Preheat system
    Patent number: 5416792
    Abstract: A furnace preheat system uses furnace off-gas to preheat material to be charged into the furnace. In a preferred embodiment of the invention, first and second angularly-spaced preheat vessels are mounted on a rotatable member which rotates them to a position over the furnace for charging the furnace and to a position for preheating the material in the preheat vessels. There is ductwork from the furnace to the first and second preheat vessels to selectively vent the off-gases to the first and second preheat vessels.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: May 16, 1995
    Assignees: Richard H. Logan, David E. Vice
    Inventor: David E. Vice