Patents by Inventor Brian David Havens

Brian David Havens 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: 7472435
    Abstract: A P-trap drainage device having a tubular body and a plurality of internal angled vanes which direct water flow in a circular or whirlpool pattern has a short coupling portion having a coupling thereon, and an extension portion dimensioned and configured to fit within standard sizes of plumbing pipes. In use, the device causes vertically flowing water coming from the drain to the P-trap to “swirl”, increasing the efficiency of flow. The shortness of the coupling portion allows easier use of the device in typically cramped conditions.
    Type: Grant
    Filed: May 7, 2006
    Date of Patent: January 6, 2009
    Inventor: Brian David Havens
  • Patent number: 7131150
    Abstract: The device is a molded, chemically-resistant-plastic cylinder consisting of a top rail, a bottom rail, four equally spaced quadrant side bars and four tapered helicoidally twisted directional vanes. Vanes are tapered from top to bottom so as not to collect debris.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: November 7, 2006
    Inventor: Brian David Havens