Tube coupling having sealing and anchoring means

Claim 1

A SEAL AND ANCHORING MEANS FOR USE WITH RELATIVELY THIN WALL TUBES AND HIGH PRESSURE TUBES COMPRISING A FIRST CHAMBER FORMING MEMBER, A SECOND CHAMBER FORMING MEMBER CONNECTIVELY INTERFITTING WITH SAID FIRST CHAMBER FORMING MEMBER TO ENCLOSE AN ANNULAR CHAMBER AROUND THE TUBE TO BE SEALED, SAID CHAMBER FORMING MEMBERS BEING RELATIVELY MOVABLE TO AXIALLY ADJUST THE VOLUME OF SAID CHAMBER, AN ANNULAR SEALING MASS POSITIONED AROUND THE TUBE IN SAID CHAMBER, A DEFORMABLE FRUSTO-CONICAL ANCHOR RING SLIDABLY MOUNTED ON THE TUBE WITH SAID CHAMBER, SAID ANCHOR RING HAVING ITS SMALLER, RADIALLY INNERMOST END DISPOSED ADJACENT ONE END OF THE SEALING MASS AND ITS LARGER, RADIALLY OUTERMOST END SPACED AXIALLY THEREFROM WHEREBY RELATIVE AXIAL MOVEMENT OF SAID CHAMBER FORMING MEMBERS TO REDUCE THE VOLUME OF SAID CHAMBER SERVES TO AXIALLY AND RADIALLY DEFORM BOTH SAID SEALING MASS AND ANCHOR RING, CAUSING THE LARGER END OF THE LATTER TO BE MOVED AXIALLY TOWARD SAID MASS AND THE SMALLER END THEREOF TO BITE RADIALLY INTO THE TUBE AT AN ANCHOR ZONE ADJACENT SAID ONE END OF SAID MASS WHILE COMPRESSING THE MASS INTO SEALING ENGAGEMENT WITH SAID TUBE; AND A SUBSTANTIALLY NON-DEFORMABLE ANNULAR RING POSITIONED ON THE TUBE BETWEEN SAID ANCHOR RING AND THE ONE END OF SAID MASS, SAID ANNULAR RING HAVNG A PORTION EXTENDING RADIALLY OUTWARDLY OF THE TUBE BETWEEN SAID ONE END OF SAID MASS AND SAID ANCHOR RING TO GUIDE AND SET THE SMALLER END OF THE LATTER INTO ANCHORING BITING ENGAGEMENT WITH THE TUBE AT SAID ANCHOR ZONE, SAID ANNULAR RING ALSO HAVING ANOTHER PORTION EXTENDING AXIALLY INWARDLY OF SAID ONE END OF SAID MASS TO EFFECTIVELY WITHHOLD A PORTION OF SAID MASS LYING OUTWARDLY THEREOF FROM SEALING ENGAGEMENT WITH AN UNDERLYING PORTION OF THE TUBE WHEREBY THE WALL OF SAID TUBE IS PREVENTED FROM DEFORMING RADIALLY INWARDLY ADJACENT SAID ANCHOR ZONE.