Patents by Inventor James E. De Long

James E. De Long 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).

  • Patent number: 4423513
    Abstract: A furnace panel for use in an arc furnace is disclosed having a cast iron block with first and second surfaces and with a cooling circuit located therebetween. The block has at least one anchoring member projecting outwards from its second surface for retaining the block to a wall of the furnace. The panel further includes steel studs embedded in the cast iron block which project outwards from the first surface and which have a profile which enhances containment of molten slag against the first surface to prolong the life of the block. As the molten slag is splashed onto the first surface of the block, the steel studs protrude outward similar to fingers on a hand, and catch the slag and retain it until it momentarily solidifies. Once the slag has solidified, it acts as an insulating layer to prevent erosion of the block by the further impingement of additional molten slag.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: December 27, 1983
    Assignee: Deere & Company
    Inventor: James E. De Long