Patents by Inventor Eric Sjodahl

Eric Sjodahl 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: 6419003
    Abstract: Disclosed is a method for increasing production efficiency of mold lines where molten metal or other material requiring a cooling period is poured sequentially into moving molds. The invention particularly comprehends the tracking of individual molds and the individualized control of the cooling time of the molds from beginning to end of the line in the presence of random line stoppages and variant mold size.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: July 16, 2002
    Assignee: LMI Technologies Inc.
    Inventors: Soren Nilsson, Eric Sjodahl
  • Patent number: 6148898
    Abstract: A pouring method and a pouring plant are described. Mould sections (15) are produced piecewise with cavities at two opposite ends thereof. The mold sections are combined in a line (15A-15D), wherein the cavities define a mold cavity (15a) having an exposed pour cup (30). The line of mold sections is advanced incrementally by drive means (16, 162) through an increment length that corresponds to the length of the mold sections (15), to and through a molding station (50). The true lengths of the produced sections (15) are measured and registered. The difference in length between the first mold section (15D) in the line (15A-15D) that lies immediately upstream of a pour cup (30), where a pouring operation was last carried out, and the last mold section (15A) in the line is calculated.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: November 21, 2000
    Assignee: Selcom AB
    Inventors: Eric Sjodahl, Soren Nilsson