Patents by Inventor Daniel E. Schmidt

Daniel E. Schmidt 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 and method for the application of a plastic liner to a flanged pipe elbow
    Patent number: 4765938
    Abstract: An injection molding apparatus is used to line flanged pipe elbows. The pipe elbow is clamped by the flanges to two pivotted platens, one of which has a curved mandrel to shape the inside of the elbow lining.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: August 23, 1988
    Assignee: The Dow Chemical Company
    Inventors: Daniel E. Schmidt, Robert P. Moeller