Patents by Inventor Andrew D. Lewis

Andrew D. Lewis 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).

  • Fuel filter assembly and cartridge
    Patent number: 4372847
    Abstract: A fuel filter assembly and cartridge for filtering, coalescing and separating solids, liquids, and gases from a fluid flow including a housing adapted to a removable cartridge. The cartridge is in the form of an annular member having an outer annular filtering section to remove solids an an inner annular coalescing section to cause emulsified liquids to form readily removable droplets in the flow. A separator is situated within the inner periphery of the coalescing section to deflect coalesced liquid for separation while permitting passage of the purified fluid.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: February 8, 1983
    Assignee: Chicago Rawhide Manufacturing Company
    Inventor: Andrew D. Lewis