Patents by Inventor Reinhard Wittkopf

Reinhard Wittkopf 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).

  • Patent number: 7381301
    Abstract: A roll changing carriage can be displaced transversely with respect to the strip rolling stand and a removal crossbar is provided for the removal of the set of backup rolls. In order to shorten the roll changing times and to automate the changing of the rolls, the removal crossbar can be positioned on the roll changing carriage and is provided with wheels on which the removal crossbar can be moved out of the roll changing carriage on guide rails running parallel to the rolls into the strip rolling stand on the intermediate roll rails, and can be pulled out of the strip rolling stand together with the set of backup rolls.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: June 3, 2008
    Assignee: SMS Demag AG
    Inventor: Reinhard Wittkopf
  • Publication number: 20050000263
    Abstract: The invention relates to a method and a device for changing the work rolls and the back-up rolls (8, 9) of a strip mill, by means of a roll-changing carriage (2) which can be transversally displaced in relation to the roll stand (1). Said roll-changing carriage receives the old sets of rolls removed, enabling them to be exchanged for new sets of rolls.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 6, 2005
    Inventor: Reinhard Wittkopf
  • Publication number: 20040231389
    Abstract: The invention relates to a device and a working method for automatically changing the sets of rolls comprising work rolls, backup rolls and intermediate rolls of a single-stand or multi-stand strip rolling mill, by means of a roll changing carriage (2) which can be displaced transversely with respect to the strip rolling stand (1) and a removal crossbar (3) provided for the removal of the set of backup rolls (10/11). In order to shorten the roll changing times and to automate the changing of the rolls, it is proposed that the removal crossbar (3) can be positioned on the roll changing carriage (2) and is provided with wheels (4) on which the removal crossbar (3) can be moved in working steps according to the invention out of the roll changing carriage (2) on guide rails (5) running parallel to the rolls (10/11) into the strip rolling stand (1) on the intermediate roll rails (8), and can be pulled out of the strip rolling stand (1) together with the set of backup rolls (10/11).
    Type: Application
    Filed: January 30, 2004
    Publication date: November 25, 2004
    Inventor: Reinhard Wittkopf