Patents by Inventor W. Sean Gallagher

W. Sean Gallagher 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).

  • Filter cartridge with integral bactericide
    Patent number: 5656159
    Abstract: A filter cartridge has an inner filter element and an outer filter element concentric therewith. The filter elements define a water flow space between them and a container of sanitizing granules is positioned in the space. The granules kill waterborne bacteria that come into contact therewith. In a more specific embodiment, the container is in a riser tube positioned in the water flow space. In another embodiment, the cartridge includes two riser tubes, each holding a container of sanitizing granules. In the alternative, one riser tube holds a container of an oxidizer such as chlorine or bromine pellets.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: August 12, 1997
    Assignee: Sta-Rite Industries, Inc.
    Inventors: Terrel F. Spencer, W. Sean Gallagher