Patents by Inventor Rudolph J. Juracko

Rudolph J. Juracko 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).

  • Prefabricated metal overcast having a crushable lower section
    Patent number: 6334738
    Abstract: A ventilation overcast comprises a frame member that defines a structure having a substantially inverted U-shape with first and second opposed side wall portions and a roof portion. A curtain member having a plurality of longitudinal corrugations therein is positioned adjacent the frame member so that a bottom portion of the curtain member contacts the floor of the mine. The longitudinal corrugations allow the curtain member to be crushed when subjected to floor heave.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: January 1, 2002
    Assignee: RAG American Coal Company
    Inventor: Rudolph J. Juracko
  • Prefabricated metal overcast having a crushable lower section
    Patent number: 6129483
    Abstract: A ventilation overcast may comprise a plurality of support columns, each of which has an upper end and a lower end. A plurality of cross beams are connected between the upper ends of each of the plurality of support columns so that the support columns and cross beams define a generally rectangular structure having two opposed side wall portions and a roof portion. A curtain member having a plurality of longitudinal corrugations therein is positioned between the lower ends of adjacent support columns located on the same side wall portion of the ventilation overcast so that a bottom portion of the curtain member contacts the floor of the mine. The longitudinal corrugations allow the curtain member to be crushed when subjected to floor heave.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: October 10, 2000
    Assignee: RAG American Coal Company
    Inventor: Rudolph J. Juracko