Patents by Inventor Ronald John Vidergar

Ronald John Vidergar 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).

  • Patent number: 7854789
    Abstract: A system and method for controlling pollutant emissions in a cement manufacturing facility. The system comprises first and second particulate control devices in series and a sorbent supply provided downstream of the first particulate control device. Exhaust process gas from the pyroprocessing unit of the cement manufacturing facility is conveyed through the first particulate control device in order to remove at least a portion of the kiln dust within the exhaust process gas to form a de-dusted exhaust process gas. The kiln dust removed from the exhaust process gas may then be recycled back to the pyroprocessing unit for use in the kiln feed. The sorbent supply injects a sorbent for capturing pollutants into the de-dusted exhaust process gas upstream of the second particulate control device to form a treated gas. The spent sorbent containing the captured pollutants is removed from the treated gas within the second particulate control device to form a cleansed exhaust process gas.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: December 21, 2010
    Assignee: Ash Grove Cement Company
    Inventor: Ronald John Vidergar