Patents by Inventor Lars H. M. J.ang.fs

Lars H. M. J.ang.fs 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: 5591248
    Abstract: The invention relates to a method and a device for melting or processing metal. The metal material is batched into a chamber (1) and circulated from one chamber to another (3, 5, 10, 11, 15, 18) with simultaneous melting under the effect of thermal radiation from the chamber lids. One or more pumps act on the pressure above the molten metal in one or more pump chambers (10, 11), connected with a melt chamber (5) and with a splash chamber (18, 15), from where the melt is discharged or recycled. The object of the invention is to upgrade melt quality by reducing turbulence in the melt chambers. This object has been achieved by transferring, at an increased pressure in the pump chamber, a substantially greater amount, approx. three to fifteen times more melt per time unit from each pump chamber (10, 11) to the splash chamber (18, 15) than from the same pump chamber to the splash chamber (5).
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: January 7, 1997
    Assignee: AB Jafs Export Oy Holimesy
    Inventors: Lars H. M. J.ang.fs, Daniel J.ang.fs