Patents Represented by Attorney Mario J. Donata, Jr.
  • Patent number: 5879553
    Abstract: The present invention is directed towards an apparatus for filtering particulate matter from a fluid. The apparatus is adapted to be placed within a bore of a housing, and in the preferred embodiment comprises a body member having a first end portion, a second end portion, and a middle portion disposed between the first and second end portions. A first flange and a second flange are connected to the first end portion. A third flange and a fourth flange are connected to the second end portion. A first fluid passing groove and a second fluid passing groove extend from the first end portion toward the second end portion. The first and second fluid passing grooves define a first web portion. A third fluid passing groove and a fourth fluid passing groove extend from the second end portion toward the first end portion. The third and fourth fluid passing grooves define a second web portion.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: March 9, 1999
    Assignee: Caterpillar Inc.
    Inventor: Mark G. Fulford