Patents by Inventor Michael A. Giefer

Michael A. Giefer 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).

  • Wrapped material, and method and apparatus for wrapping and unwrapping such material
    Patent number: 5848696
    Abstract: An elongate mass of material wrapped by a liner in which the liner is wrapped around the material with the liner inside surface facing the peripheral surface of the material, with first and second regions of the liner extending away from the material with the liner inside surface of the first region in unbonded contact with the liner inside surface of the second region so as to enclose the material with said liner. The material and the center region of the liner together form a core of the wrapped mass of material, and the first and second liner regions together form a tab of the wrapped mass of material. The wrapped mass of material includes a first portion and a second portion and is arranged such that the core of a second portion applies sufficient force to the tab of a first portion so as to maintain the mass of material enveloped by the liner at the first portion. Also presented are methods and apparatus for wrapping and unwrapping such material.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: December 15, 1998
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Dennis L. Christ, Timothy D. Bredahl, Michael A. Giefer, Robert D. Hamann, Donald R. Peacock, Timothy J. Walker