Patents Represented by Attorney Christopher H. Hunt
  • Patent number: 7771595
    Abstract: A filter element includes a ring of filtration media circumscribing a central axis, and first and second end caps. The first end cap includes i) an annular body portion defining a central opening around the central axis, sealingly bonded to the first end of the media ring, ii) an annular sealing ring having an annular, peripheral resilient sealing portion; and iii) axial support stanchions around the periphery of the body portion. The stanchions support the sealing ring at a location spaced apart from the body portion, and define radial flow openings between adjacent stanchions. One or more non-radial flow members extend from each stanchion along the outer surface of the annular body portion to direct flow in a spiral or helical manner, where the flow then passes through the flow openings and downwardly along the outer surface of the media in a swirling manner.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 10, 2010
    Assignee: Parker-Hannifin Corporation
    Inventors: Anita L. Reynolds, Albert F. Cella, Bruce E. Shane