Patents by Inventor David W. Painter

David W. Painter 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).

  • Particulate filter cleaning device
    Publication number: 20080006155
    Abstract: A method for cleaning a diesel particulate filter by loosening and removing ash from a filter passage in a diesel particulate filter. The steps include providing a diesel particulate filter containing ash within the filter passages, providing a particulate filter cleaning device, and inserting the particulate filter cleaning device into the filter passages. The steps also include moving the particulate filter cleaning device within the filter passage to loosen the ash particles, removing the particulate filter cleaning device from the filter passage, and removing the loosened ash particles from the filter.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 10, 2008
    Inventors: Cheryl L. Sellers, Jade M. Katinas, David W. Painter