Patents by Inventor Ronald J. Wujnovich

Ronald J. Wujnovich 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: 4263140
    Abstract: An in-line fluid filter of the multi-piece type having a pair of body sections coaxially secured to each other. A filter element is fixedly disposed transversely across a filter chamber defined by the body sections intermediate a fluid filter inlet and outlet. This filter element includes an annular mounting flange interposed between mating annular body section end faces. A generally cup-shaped filter element support is fixedly located on at least the outlet side of the filter element and is dimensioned so that the filter element is at least partially received in the cup-shaped area thereof. This support includes an annular mounting rim which is also interposed between the body section end faces. The support allows the filter to experience greatly increased fluid pressure differentials across the filter element. The filter element mounting flange and the support mounting rim are dimensioned to at least extend to the outside diameter of the mating body section annular end faces.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: April 21, 1981
    Assignee: Nupro Company
    Inventors: Ronald J. Wujnovich, Earl D. Shufflebarger, William C. Steiss