Patents by Inventor Dan Krayenhagen

Dan Krayenhagen 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).

  • Flexible roll
    Patent number: 5547449
    Abstract: A flexible roll for applying pressure to a substrate comprising a center rod extending between two end journals, and a wound helical coil attached to such journals with a diametric spacing from the center rod so that the coil will assume a convex bowed configuration and contact the center rod at the middle portion thereof.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: August 20, 1996
    Inventor: Dan Krayenhagen