Patents by Inventor Laszlo Branyi

Laszlo Branyi 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).

  • Mining shield support apparatus
    Patent number: 4048803
    Abstract: The invention concerns an advanceable shield support assembly for longwall mining. The assembly has a pivotable main roof cap housing a retractable and extensible auxiliary roof cap. Normally the main roof cap supports the roof and the auxiliary one is retracted. However, before the assembly is advanced, the auxiliary roof cap is extended to support the roof section between the working face and the front edge of the main roof cap. The movement of the auxiliary roof cap, and the force with which it engages the roof section, are controlled by cooperating guide tracks and track-engaging elements capable of exerting a wedging action.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: September 20, 1977
    Assignee: Banyaszati Kutato Intezet
    Inventors: Karoly Bole, Kalman Nagy, Istvan Aufsatz, Jozsef Bohnert, Laszlo Branyi, Zoltan Ilyes, Jozsef Korbuly, Janos Nemeth