Patent ID: 6688423
Filing Date: 2004-02-10
Classification: B62D,F02M,Y10T

Abstract:
A method of making a fluid noise attenuation tuning cable assembly that comprises the steps of:(a) providing a length of tuning cable having metal wires spirally wrapped to form a hollow tube, (b) providing a restrictor having a hollow interior and an enlarged cylindrical end shell, (c) placing an end of said tuning cable into said cylindrical shell of said restrictor, and (d) directly magnetically deforming said shell of said restrictor radially inwardly around said end of said cable by interaction of opposing magnetic fields generated in said shell and in an encircling electric coil, such that an inner surface of said restrictor shell both grips and closely conforms to the juxtaposed outer surface of said cable without crushing or deforming said cable end to thereby both securely fasten said cable to said restrictor and also to greatly reduce fluid leakage at the joint as compared to conventional swaging or mechanical crimping techniques employed to secure the cable to the restrictor, and without requiring brazing material or any other sealant material interposed between said surfaces.