Patents by Inventor Laszlo Belley

Laszlo Belley 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).

  • Apparatus for loosening and/or breaking coal deposits, rocks, granular or lumpy material, or scrap
    Patent number: 4626031
    Abstract: An apparatus for breaking coal or other mineral matter from a bed thereof which comprises a string filling a bore hole which can rise steeply in this bed. The string consists of alternating breaking units and connecting pipes each braking unit having a differential piston displaced solely by the action of air pressure so that breaking slots are unblocked to discharge compressed air built up in the string. The pistons are provided with check valves to permit filling of the string.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: December 2, 1986
    Assignees: Gepipari Technologiai Intezet, Mecseki Szenbanyak
    Inventors: Jozsef Nemeth, Laszlo Belley, Gyorgy Gergo, Bela Sebestyen, Zoltan Vida