Patents by Inventor John Alton Laughlin

John Alton Laughlin 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: 6013179
    Abstract: A filter assembly is disclosed which includes a downwardly sloping skirt portion, a gasket, filter media, and a supply suction tube. The gasket is integral with a top section of the skirt portion. The filter media, which may be pleated for increased filtering capabilities, is positioned at the bottom of the skirt portion such that unfiltered fluid will be gravity biased to pass through the filter media. The suction tube is integral with the skirt and has a first end and a second end. The first end is adapted to be connected to a pump, while the second end extends through the skirt such that the filtered fluid can be drawn through the suction tube when the pump is activated.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: January 11, 2000
    Assignee: Dana Corporation
    Inventors: John Alton Laughlin, Joseph Stephen Williamson, Brian Thomas Lee