Patents by Inventor Friedhelm Schafer

Friedhelm Schafer 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).

  • Method and apparatus for manufacturing a wrap-around tube
    Patent number: 8236120
    Abstract: In a method for manufacturing a wrap-around tube from at lest one strip-shaped material, the wrapping is brought about by at least one rotating wrapping element which is indirectly or directly in engagement with the wrap-around tube, and the strip-shaped material is wrapped onto a stationary wrapping core. An apparatus for manufacturing a wrap-around tube from at least one strip-shaped material is distinguished by the fact that it has a rotating wrapping element, which is indirectly or directly in engagement with the wrap-around tube, and a stationary wrapping core, onto which the at least one strip-shaped material is wrapped.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: August 7, 2012
    Assignee: Novelis Deutschland GmbH
    Inventors: Christian Muller, Friedhelm Schafer
  • METHOD AND APPARATUS FOR MANUFACTURING A WRAP-AROUND TUBE
    Publication number: 20090301646
    Abstract: In a method for manufacturing a wrap-around tube from at lest one strip-shaped material, the wrapping is brought about by at least one rotating wrapping element which is indirectly or directly in engagement with the wrap-around tube, and the strip-shaped material is wrapped onto a stationary wrapping core. An apparatus for manufacturing a wrap-around tube from at least one strip-shaped material is distinguished by the fact that it has a rotating wrapping element, which is indirectly or directly in engagement with the wrap-around tube, and a stationary wrapping core, onto which the at least one strip-shaped material is wrapped.
    Type: Application
    Filed: October 10, 2006
    Publication date: December 10, 2009
    Inventors: Christian Muller, Friedhelm Schafer
  • Winding tube and method for the production thereof
    Publication number: 20040075016
    Abstract: The invention relates to a winding tube for winding up bands, films, sheets of metal or similar made of a spiral shaped wound metal strip whose adjacent strip windings overlap at least partially. The metal strip has a corrugated or ribbed profile in the cross-section thereof, whose external corrugated heads (1) are disposed on the outer wall of the winding tube after winding and are wider than the internal corrugated heads (2) disposed on the inner wall of the winding tube after winding.
    Type: Application
    Filed: December 1, 2003
    Publication date: April 22, 2004
    Inventors: Friedhelm Schafer, Friedrich Werner