Tube fitting

Claim 1

A TUBE FITTING COMPRISING: A BODY HAVING A BORE OPENING OUTWARDLY THROUGH ONE PORTION THEREOF; A NUT HAVING A BORE THERETHROUGH AND AN INTURNED, SUBSTANTIALLY RIGID FLANGES AT AN OUTER END OF THE NUT, SAID FLANGE DEFINING A LONGITUDINALLY INNER ANNULAR SURFACE HAVING A RADIAL, ANNULAR RADIALLY OUTER PORTION AND A LONGITUDINALLY INWARDLY NARROWING, FRUSTO-CONICAL, ANNULAR RADIALLY INNER PORTION ACCURATELY COAXIAL OF SAID NUT BORE; MEANS FOR CONNECTING THE NUT TO THE BODY WITH THE BORE OF THE NUT COAXIALLY ALIGNED WITH THE BORE OF THE BODY AT SAID PORTION; AN ANNULAR SPRINGY RETAINER COAXIALLY BETWEEN SAID BODY PORTION AND SAID FLANGE AND HAVING A RADIAL, ANNULAR RADIALLY OUTER PORTION AND A LONGITUDINALLY INWARDLY NARROWING, FRUSTO-CONICAL, ANNULAR RADIALLY INNER PORTION COMPLEMENTARY TO AND CIRCUMFERENTIALLY CONTINUOUSLY FACIALLY ENGAGING SAID OUTER AND INNER PORTIONS RESPECTIVELY OF SAID FLANGE SURFACE TO BE POSITIVELY RIGIDLY SUPPORTED THEREBY AT ALL TIMES IN ACCURATE CENTERED RELATIONSHIP TO SAID NUT BORE, THE INNER DIAMETER OF SAID INNER PORTION OF THE NUT FLANGE BEING SLIGHTLY LARGER THAN THE INNER DIAMETER OF SAID INNER PORTION OF THE RETAINER WHEREBY THE RADIALLY INNER EDGE OF THE INNER PORTION OF THE RETAINER IS LIMITEDLY DEFLECTABLE FOR BITING INTO A TUBE EXTENDING COAXIALLY THROUGH SAID NUT BORE THEREBY PREVENTING AXIALLY OUTWARD MOVEENT OF THE TUBE; AND ANNULAR MEANS FOR SEALING THE TUBE TO SAID BODY AND URGING SAID RETAINER AGAINST EACH OF SAID PORTIONS OF SAID FLANGE SURFACE AND SAID INNER PORTION OF THE RETAINER AGAINST SAID TUBE.