Conduit coupling having identical halves

Claim 1

A COUPLING ASSEMBLY FOR FLUID LINES COMPRISING, COMPLEMENTARY COUPLING UNITS EACH INCLUDING A TUBULAR SHAPED BODY MEMBER AND SLEEVE SURROUNDING AND SLIDABLE AXIALLY ON SAID BODY MEMBER AND DETENT MEANS CARRIED BY SAID TABULAR MEMBER, EACH SLEEVE BEING SLIDABLE ON ITS TUBULAR MEMBER TO A PROJECTED POSITION WITH ITS FREE END POSITIONED BEYOND THE FREE END OF THE ASSOCIATED BODY MEMBER, EACH SLEEVE HAVING AXIALLY SPACED INNER AND OUTER GROOVES IN THE SAME WALL OF THE SLEEVE, EACH DETENT MEANS INCLUDING MEANS ENGAGING THE ASSOCIATED SLEEVE IN ITS INNER GROOVE WHEN ENGAGING THE ASSOCIATED SLEEVE IN POSITION RELEASABLY LOCKING THE SLEEVE WITH RESPECT TO ITS BODY MEMBER, THE CENTER OF THE OUTER GROOVE IN EACH SLEEVE WHEN IN THE PROJECTED POSITION BEING SPACED BEYOND THE FREE END OF ITS BODY MEMBER A DISTANCE AT LEAST AS GREAT AT THE SPACING OF THE FREE END OF THE OTHER BODY MEMBER FROM THE CENTER OF THE GROOVE ENGAGING MEANS THEREON, EACH SLEEVE BEING RETRACTABLE RELATIVE TO ITS BODY MEMBER TO A POSITION WITH ITS FREE END AXIALLY SPACED FROM THE GROOVE ENGAGING MEANS THEREON A DISTANCE AS GREAT AS THE AXIAL SPACING OF THE OUTER GROOVE FROM THE FREE END OF EACH SLEEVE, AND EACH OF SAID GROOVE ENGAGING MEANS BEING SPACED FROM THE FREE END OF ITS BODY MEMBER WHEREBY THE GROOVE ENGAGING MEANS ON ONE UNIT MAY ENGAGE THE ASSOCIATED SLEEVE IN ITS INNER GROOVE WITH THE GROOVE ENGAGING MEANS ON THE OTHER UNIT ENGAGING THE SAME SLEEVE IN THE OUTER GROOVE THEREOF.