Patents by Inventor Juha Lauri Lumppio

Juha Lauri Lumppio 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: 5967219
    Abstract: The present invention relates to a method and apparatus for pouring molten material, such as molten metal, into a casting mold so that the amount of melt can be weighed in connection with the pouring. In order to keep the pouring height of the molten material low and its motion as smooth as possible during the pouring step, the bottom of the ladle containing molten material is designed to be essentially curved, with such a radius of curvature that the thickness of the molten layer located in the ladle is, even at its thickest, only a fraction of the length of the radius of curvature of the bottom. The casting method of the invention is advantageously realized by means of a cradle arrangement of the ladle according to the invention.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: October 19, 1999
    Assignee: Wenmec Systems OY
    Inventor: Juha Lauri Lumppio
  • Patent number: 5829907
    Abstract: The present invention relates to a knife ring joint, the purpose whereof is to reduce mechanical friction and to increase weighing accuracy in a scale which is used in the casting of molten material. The knife ring is designed to be pressed in a ring-like fashion against a cylinder surface serving as the countersurface, and any motion in the direction of the lengthwise axis of the cylinder surface is prevented by of a flexible element.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: November 3, 1998
    Assignee: Wenmec Systems OY
    Inventor: Juha Lauri Lumppio