Patents by Inventor Erwin D. Kanne

Erwin D. Kanne 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).

  • Vertical alignment tool for underground installation
    Patent number: 5799405
    Abstract: An aligning tool, involving plumb bob usage, for a fully assembled underground elevator ram system is provided and makes it possible to align the elevator ram into a required vertical position. Further this allows the fully assembled elevator to be vertically installed at site in a hole which often is flooded by groundwater.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 1, 1998
    Assignee: C.M.F. Corporation
    Inventors: Jack V. Christensen, Erwin D. Kanne