Throwaway filter arrangement

Claim 1

A FLUID FILTER FOR ATTACHMENT TO A DEVICE HAVING A THREADED FLUID PASSAGE STUD AND A SECOND FLUID PASSAGE OPENING ADJACENT THERETO AND A GASKET SEAT SURROUNDING BOTH OF SAID PASSAGES, SAID FILTER COMPRISING A CLOSED END CONTAINER HAVING AN END WALL PROVIDED WITH A THREADED FLUID PASSAGE BUSHING ADAPTED TO BE SCREWED TO SAID STUD, SAID CONTAINER BEING OF METAL OF SUCH THIN GAUGATE THAT IT DEFORMS WHEN COMPRESSED BY A CONVENTIONAL TIGHTENING OR LOOSELY TOOL AND HAVING A NUT-LIKE CONFIGURATION IN ITS PERIPHERY ADJACENT THE CLOSED END, SAID CONFIGURATION HAVING A MULTIPLICITY OF FLATS DISPOSED WITH A WIDE OBTRUSE ANGLE BETWEEN EACH ADJACENT PAIR OF FLATS, A ROUNDED JUNCTION PORTION EXTENDING LONGITUDINALLY BETWEEN AND BEING BLENDED INTO THE FLATS OF EACH ADJACENT PAIR THEREOF, THE JUNCTION PORTION BEING SUBSTANTIALLY CONVEX WITH RESPECT TO THE OUTER SURFACE OF THE CONTAINER, AND AN ADDITIONAL ROUNDED JUNCTION PORTION EXTENDING CIRCUMFERENTIALLY BETWEEN AND BEING BLENDED INTO THE FLATS AND THE CLOSED END, THE ADDITIONAL JUNCTION PORTION BEING SUBSTANTIALLY CONVEX WITH RESPECT TO THE OUTER SURFACE OF THE CONTAINER, SAID CONFIGURATION BEING ADAPTED TO RECEIVE A WRENCH EXTENDING OVER SAID CLOSED END AND HAVING FLATS MATCHING THOSE ON THE CONTAINER SO THAT TURNING TORQUE APPLIED BY THE WRENCH WILL BE DISTRIBUTED UNIFORMLY TO THE CONTAINER THROUGH THE FLATS WITHOUT DISTORTING THE CONTAINER ON TIGHTENING OR LOOSENING OF THE LATTER WITH RESPECT OF THE ENGINE, AND A RING GASKET ADAPTED TO FIT SAID SEAT AND SEAL THEREAGAINST WHEN THE BUSHING IS SCREWED TO SAID STUD, SAID END WALL HAVING AT LEAST ONE TONGUE MEMBER STRUCK OUT FROM AND FORMING A FLUID PORT THEREIN BETWEEN SAID GSKET AND BUSHING, SAID TONGUE MEMBER EXTENDING FROM SAID END WALL TO ENGAGE SAID GASKET WITH RESPECT THERETO.