Patents by Inventor David Roy Parsons

David Roy Parsons 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: 5951388
    Abstract: The invention relates to a dust retaining and filtering device which can be attached to a dust generating tool, for controlling the spread of dust and other particulate matter generated by grinding, sanding, polishing, burnishing and buffing devices. The device comprises a resilient skirt which curves outwardly along its bottom edge; a filter extending along the length of the skirt; means for mounting the filter along the length of the skirt and attachment means for securing the device to the dust generating tool.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: September 14, 1999
    Inventor: David Roy Parsons