Gastight gasket joint

Claim 1

A METAL GASKET SEAL AND TWO CONDUIT END MEMBERS COOPERATING WITH SAID SEAL TO PROVIDE A TIGHT JOINT BETWEEN CONDUITS WHICH ARE TO BE CONNECTED TOGETHER, SAID GASKET SEAL COMPRISING A UNITARY ANNULAR RING OF METALLIC SHEET MATERIAL, THE BODY PORTION OF SAID RING BEING CORRUGATED ALONG THE LONGUTIDINAL AXIS OF THE RING AND HAVING THE SHAPE OF A CONTINUOUS WAVE FORM, AXIAL END PORTIONS OF THE RING LYING PARALLEL TO SAID AXIS, EXTENDING IN OPPOSITE DIRECTIONS AND DISPOSED AT A RADIALLY INWARDLY PORTION OF THE BODY OF THE RING, SAID CORRUGATIONS COMPRISING AT LEAST TWO RIDGES EXTENDING RADIALLY OUTWARDLY BEYOND THE END PORTIONS THEREOF AND AT LEAST ONE GROOVE SEPARATING THE RIDGES AND LYING RADIALLY INWARDLY OF THEM BUT RADIALLY OUTWARDLY OF A CYLINDRICAL PLANE CONTAINING SAID END PORTIONS, SAID GROOVE HAVING A BOTTOM AND TWO SIDE PORTIONS WHICH GENERALLY FORM A V WHEN SEEN IN CROSS-SECTION BEGINNING AT THE BOTTOM OF THE GROOVE, SAID END MEMBERS EACH HAVING THREE SPACED WALLS DEFINING SLOTS EXTENDING CIRCUMFERENTIALLY INTO SAID END MEMBERS PARALLEL TO SAID LONGITUDINAL AXIS, SAID GASKET SEAL END PORTIONS HAVING A TAPERED WEDGE SEALING ENGAGEMENT WITH TWO OF THE WALLS DEFINING SAID SLOTS AND BEING IMMOVABLE THEREIN, THERE BEING OUTER LEG PORTIONS OF THE BODY OF THE GASKET WHICH EXTEND FROM THE EDGES TO THE RIDGES AND REST TIGHTLY AGAINST THE END MEMBERS, THE RIDGES OF THE GASKET SEAL BEING SUPPORTED AGAINST RADIALLY OUTWARD MOVEMENT BY AT LEAST ONE OF SAID END MEMBERS.