Patents by Inventor Mario Chyb

Mario Chyb 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).

  • Mine roof plate
    Patent number: 4652178
    Abstract: The plate has the plate material in-turned, about the central, roof bolt or friction rock stabilizer aperture, to form a tubular wall thereat. Accordingly, the rim of the aperture is made stronger and the plate, therefore, is capable of supporting a considerable loading.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: March 24, 1987
    Assignee: Ingersoll-Rand Company
    Inventors: Richard Kates, Mario Chyb