Patents by Inventor Otto F. Ernst

Otto F. Ernst 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).

  • Apparatus for forming objects from a moldable material
    Patent number: 5056999
    Abstract: An apparatus for forming objects from a moldable material such as wax. The apparatus includes upper and lower mold pieces having upper and lower mold cavity halves attached thereto. A lever arm extends from the upper mold piece and is pivotally attached to a linear actuator. The upper and lower mold pieces are pivotably connected to one another. Movement of the linear actuator results in opening and closing of the upper and lower mold cavity halves about the pivotable connection of the upper and lower mold pieces.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: October 15, 1991
    Assignee: Howmet Corporation
    Inventors: Larry A. Lewis, David L. Kring, Otto F. Ernst