Patents by Inventor Jakob S. Jafs

Jakob S. Jafs 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: 5164146
    Abstract: Foundry furnace particularly for light non-ferrous metal, such as zinc or aluminum, including a longitudinal chamber (4, 8, 11, 12) made of a heat-resistant material, including close to one end an inlet for scrap (18) and/or bars (5), a slag outlet (5,6), an outlet flow passage (13) including a dispensing opening (14) at the other end, and heating elements for melting the metal, including direct radiating resistance elements (3, 3') in the cover of the chamber (4, 12) and vertically free moving dip-elements (9) extending downwardly from the cover of the chamber (8) for flowing on and into the melt metal in the chamber (8). According to the invention the height of the outlet flow passage is around 1/3-2/3 of the height of the chamber (8, 12), and the active part (7) of the dip-elements in the vertical direction at most equals the distance of the bottom (16) of the outlet flow passage (13) from the bottom (17) of the chamber.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: November 17, 1992
    Assignee: AB Jafs Export Oy Holimesy
    Inventors: Daniel Jafs, Jakob S. Jafs