Patents Assigned to Water Gremlin
  • Method of molding articles to minimize shrinkage and voids
    Patent number: 6123142
    Abstract: Molten material is elevated into a mold cavity and subsequently pressure is brought to bear on the molten material in the mold cavity substantially immediately to solidify the molten material under pressure. The molten material is tapped from a reservoir of molten material below the surface of the molten material to minimize exposure to air of the molten material and transferred to the mold cavity without a downward flow or a pouring of the tapped molten material.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: September 26, 2000
    Assignee: Water Gremlin
    Inventor: Leon J. Ratte