Patents by Inventor Conrad Kulik

Conrad Kulik 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).

  • Flotation machine and process for removing impurities from coals
    Patent number: 5601703
    Abstract: The present invention is directed to a type of flotation machine that combines three separate operations in a single unit. The flotation machine is a hydraulic separator that is capable of reducing the pyrite and other mineral matter content of a coal. When the hydraulic separator is used with a flotation system, the pyrite and certain other minerals particles that may have been entrained by hydrodynamic forces associated with conventional flotation machines and/or by the attachment forces associated with the formation of microagglomerates are washed and separated from the coal.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: February 11, 1997
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Kazimierz Szymocha, Boleslaw Ignasiak, Wanda Pawlak, Conrad Kulik, Howard E. Lebowitz
  • Flotation machine and process for removing impurities from coals
    Patent number: 5472094
    Abstract: The present invention is directed to a type of flotation machine that combines three separate operations in a single unit. The flotation machine is a hydraulic separator that is capable of reducing the pyrite and other mineral matter content of a coal. When the hydraulic separator is used with a flotation system, the pyrite and certain other minerals particles that may have been entrained by hydrodynamic forces associated with conventional flotation machines and/or by the attachment forces associated with the formation of microagglomerates are washed and separated from the coal.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: December 5, 1995
    Assignee: Electric Power Research Institute
    Inventors: Kazimierz Szymocha, Boleslaw Ignasiak, Wanda Pawlak, Conrad Kulik, Howard E. Lebowitz