Patents by Inventor J. Spencer Hardern

J. Spencer Hardern 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: 6148466
    Abstract: A pool brush for cleaning all narrow areas of a pool such as corners, stairs, seats, and where walls intersect as well as the intersection of where all floor areas meet the walls. The brush has a head with a substantially cylindrical body and semi-spherical rounded ends. All the brush bristles are perpendicular to and uniformly mounted approximately 1/4 inch center to center from one another across all rounded surfaces of the brush head. Each of the adjacent bristles on the rounded surfaces is angled approximately 10 degrees from one another. A side cross-sectional view of the cylindrical body shows the bristles expanding outward at approximately 280 degrees.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: November 21, 2000
    Inventors: Joseph J. Smitelli, III, J. Spencer Hardern