Patents by Inventor David A. Skiven

David A. Skiven 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).

  • Side stream separator for boiler particulate emission control
    Patent number: 4314830
    Abstract: Device for controlling the particulate emission from coal-fired boilers including a cyclone type primary separator between the boiler and the stack and a bag filter coupled in side stream relation to the cyclone separator such as to shunt and departiculatize up to about 20% of the gas stream entering the cyclone. The shunted gas is drawn from below the tube sheet of the cyclone separator, filtered through the bags and returned to the stack. Means are provided to control the temperature of the shunted gas within defined limits corresponding to the acid dew point of the gas and the thermal degradation temperature of the filter media.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: February 9, 1982
    Assignee: General Motors Corporation
    Inventors: David A. Skiven, Charles J. Sortor, Raymond J. Tessier