Disposable oil filter for automobile engines

Claim 1

IN A SCREW TYPE FILTER COMPRISING A CYLINDRICAL HOUSING AND A FLAT CIRCULAR END CAP CLOSING ONE END OF SAID HOUSING AND HAVING AN INNER SURFACE FACING INWARDLY OF SAID HOUSING AND AN OUTER SURFACE, SAID END CAP HAVING A CENTRAL INWARDLY THREADED FLANGED ORIFICE AND A PLURALITY OF SPACED APART PORTS LOCATED AROUND SAID CENTRAL ORIFICE, SAID END CAP HAVING AT ITS OUTER SURFACE AN ANNULAR TROUGH SURROUNDING SAID CENTRAL ORIFICE AND SAID PORTS, AN O RING LOCATED WITHIN SAID TROUGH, SAID END CAP HAVING AT THE PERIPHERAL EDGE THEREOF A FLANGE EXTENDING OUTWARDLY THEREFROM, SAID CYLINDRICAL HOUSING HAVING, AT THE PERIPHERAL EDGE OF ITS OPEN END, A LIP PROTRUDING RADIALLY INWARDLY OF SAID HOUSING, HAVING AN ARCUATE CROSS-SECTION AND SURROUNDING SAID FLANGE AND HAVING A LIP EXTENSION DISPOSED ADJACENT A ZONE OF SAID OUTER SURFACE OF SAID END CAP SPACED RADIALLY INWARDLY FROM SAID FLANGE TO DEFINE A TROUGH-LIKE SPACE BETWEEN SAID FLANGE AND LIP EXTENSION IN WHICH AN ANNULAR PORTION OF SAID OUTER SURFACE IS EXPOSED, A SEALANT IN SAID SPACE IN SEALING CONTACT WITH SAID ANNULAR PORTION OF THE OUTER SURFACE OF SAID END CAP AND THE INNER SURFACE OF SAID LIP EXTENSION, AND WHEREIN SAID FLANGE HAS AN OUTER PERIPHERAL SURFACE PROTRUDING RADIALLY OUTWARDLY FROM THE INSIDE CYLINDRICAL SURFACE OF SAID HOUSING, AND SAID LIP FORMS AN AXIALLY INCLINED INNER SURFACE AGAINST WHICH SEATS SAID OUTER PERIPHERAL SURFACE OF SAID END CAP FLANGE.