Rotationally adjustable fitting with extrusion resisting seal

Claim 1

A FITTING FOR USE WITH A CONVENTIONAL PORT MEANS HAVING AN ANNULAR OUTWARDLY WIDENING CAN SURFACE AND A THREADED BORE OPENING INTOP SAID CAM SURFACE, THE FITTING BEING ADAPTED TO BE SEALINGLY SECURED TO THE PORT MEANS IN ANY ONE OF A PLURALITY OF ROTATIONAL POSITIONS RELATIVE TO THE AXIS OF THE PORT MEANS, SAID FITTING COMPRISING: A BODY MEMBER HAVING AN INNER END, A BORE EXTENDING THROUGH SAID BODY MEMBER AND OPENING THROUGH SAID INNER END, AN EXTERIORLY THREADED INNER PORTION ADAPTED TO BE THREADEDLY SECURED TO SAID PORT MEANS IN THE THREADED BORE THEREOF, AN EXTERIORLY CYLINDRICAL INTERMEDIIATE PORTION EXTENDING COAXIALLY OUTWARDLY FORM SAID INNER PORTION AND HAVING AN OUTER DIAMETER NO GREATER THAN THE ROOT DIAMETER OF SAID THREADED INNER PORTION, AND AN OUTER PORTION EXTENDING COAXIALLY OUTWARDLY FROM SAID INTERMEDIATE PORTION AND EXTERIORLY THREADED SIMILAR TO SAID INNER PORTION; A NUT HAVING AN INTERIORLY THREADED OUTER PORTION THREADEDLY SECURED TO SAID OUTER PORTION OF THE BODY MEMBER, AND AN INNER ANNULAR DEFORMABLE PORTION EXTENDING COAXIALLY INWARDLY FROM SAID OUTER PORTION OF THE NUT AND CIRCUMJACENT SAID CYLINDRICAL INTERMEDIATE PORTION OF THE BODY MEMBER, SAID DEFORMABLE PORTION BEING FORCIBLY ENGAGEABLE WITH THE CAN SURFACE OF THE PORT MEANS TO EFFECT A HIGH PRESSURE SEAL OF THE NUT TO THE PORT MEANS, THE DEFORMABLE PORTION BEING DEFLECTED INWARDLY BY ITS ENGAGEMENT WITH THE CAM SURFACE, THE UNDEFLECTED INNER DIAMETER OF SAID DEFORMABLE PORTION BEING GREATER THAN SAID OUTER DIAMETER OF THE INTERMEDIATE PORTION OF THE BODY MEMBER TO DEFINE AN ANNULAR SPACE THEREBETWEEN, AND THE LONGITUDINAL EXTENT OF SAID DEFORMABLE PORTION BEING SUCH THAT WHEN SAID DEFORMABLE PORTION IS DEFLECTED INWARDLY BY SAID CAM SURFACE OF THE PORT, IT SUBSTANTIALLY ENCLOSES SAID ANNULAR SPACE; WHILE REMAINING SLIGHTLY SPACED THEREFROM AND A RESILIENT SEAL IN SAID SPACE HAVING AN UNCOMPRESSED VOLUME SUBSTANTIALLY GREATER THAN THE SPACE ENCLOSED BY SAID DEFORMABLE PORTION OF THE NUT WHEN IT IS SO DEFLECTED INWARDLY AND WHEREBY THE SEAL PROVIDES A HIGH PRESSURE SEAL OF THE NUT TO THE BODY MEMBER WHEN THE DEFORMABLE PORTION IS SO DEFLECTED, SAID SEAL BEING FORMED OF A SEAL MATERIAL HAVING EXTRUSION RESISTING PHYSICAL CHARACTERISTICS SUCH AS THOSE OF NYLON PRECLUDING SUBSTANTIAL EXTRUSION THEREOF TO BETWEEN THE THREADED OUTER PORTIONS OF THE BODY AND NUT.