Patents by Inventor Peter Kr/o/ ninger

Peter Kr/o/ ninger 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).

  • Travelling bracket
    Patent number: 4487531
    Abstract: A trough-shaped travelling bracket of a retracting and guiding arrangement of a mine roof support has fixing elements at its mine-face end for releasably coupling with an abutment, wherein the fixing elements are exchangeable, but fixedly connectable with a web of the travelling bracket.
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: December 11, 1984
    Assignee: Bochumer Eisenh/u/ tte Heintzmann GmbH & Co. KG
    Inventors: Ernst-G/u/ nter Nerlich, Hans-Ferdinand Bemmerl, Peter Kr/o/ ninger