Patents by Inventor Robin R. Dunnette

Robin R. Dunnette 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).

  • Method and apparatus of preheating a sootblower lance
    Patent number: 5320073
    Abstract: A retractable sootblower is provided with means for preheating the sootblower lance prior to introduction of blowing medium into the lance to prevent condensation of the blowing medium which would be subsequently discharged from the lance against internal boiler surfaces accelerating surface erosion. The sootblower of the present invention preheats the lance by only providing blowing medium to the lance after at least a portion of the lance has been extended into the boiler and heated by hot boiler gases to thereby prevent condensation of the blowing medium within a cooled lance.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: June 14, 1994
    Assignee: The Babcock and Wilcox Company
    Inventors: Edward O. Silcott, Robin R. Dunnette, Robert L. Irelan