Patents by Inventor Otto Bruentrup

Otto Bruentrup 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).

  • Coldforming machine
    Patent number: 7353679
    Abstract: There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: April 8, 2008
    Assignee: Ex-Cell-O GmbH
    Inventors: Bernd Kreissig, Lothar Ophey, Otto Bruentrup
  • Coldforming machine
    Publication number: 20060162409
    Abstract: There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed.
    Type: Application
    Filed: March 27, 2006
    Publication date: July 27, 2006
    Applicant: EX-CELL-O GmbH
    Inventors: Bernd Kreissig, Lothar Ophey, Otto Bruentrup
  • Cold forming machine
    Patent number: 7051565
    Abstract: There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: May 30, 2006
    Assignee: Ex-Cell-O GmbH
    Inventors: Bernd Kreissig, Lothar Ophey, Otto Bruentrup