Reusable swivel hose coupling

Claim 1

A REUSABLE SWIVEL HOSE COUPLING COMPRISING A BODY HAVING A BORE EXTENDING AXIALLY THERETHROUGH FROM ONE END TO THE OTHER, SAID BORE HAVING A LARGER DIAMETER PORTION PROVIDED WITH A PAIR OF AXIALLY SPACED, CIRCULAR CYLINDRICAL PORTIONS WITH AN OPENING THEREBETWEEEN, A FITTING MOUNTED ON SAID BODY AND HAVING A PASSAGEWAY THEREIN COMMUNICATING WITH SAID OPENING, SAID BORE HAVING A SMALLER DIAMETER PORTION AT ONE END CONNECTED WITH THE LARGER DIAMETER PORTION BY MEANS OF A RADIALLY EXTENDING SHOULDER, A STEM HAVING A LARGER DIAMETER PORTION DISPOSED WITHIN THE LARGER DIAMETER BORE PORTION OF THE BODY AND A REDUCED PORTION EXTENDING THROUGH THE SMALLER DIAMETER PORTION AND OUT THROUGH THE ADJACENT END OF THE BODY, SAID ONE PORTION OF THE STEM HAVING A PAIR OF AXIALLY SPACED CIRCULAR CYLINDRICAL PORTIONS REGISTERING AXIALLY WITH THE CIRCULAR CYLINDRICAL PORTIONS OF THE LARGER DIAMETER BORE, O-RINGS AT SAID CYLINDRICAL PORTIONS ROTATABLY SEALING SAID STEM IN SAID BORE, SAID STEM HAVING AN AXIAL BORE WHICH IS CLOSED AT THE END THEREOF WITHIN SAID LARGER DIAMETER BORE AND OPEN AT THE OTHER END OF THE REDUCED PORTION, SAID STEM HAVING A TRANSVERSE OPENING THEREIN BETWEEN SAID O-RINGS ESTABLISHING COMMUNICATION BETWEEN THE PASSAGEWAY IN THE FITTING AND THE BORE IN THE STEM, THE REDUCED PORTION OF THE STEM WHICH PROJECTS OUTWARDLY OF THE BODY BEING EXTERNALLY THREADED, A SLEEVE THREADED OVER THE THREADED PORTION OF THE STEM AND HAVING ONE END ENGAGING SHOULDER MEANS ON SAID STAM AND RADIALLY OVERLAPPING SAID SHOULDER MEANS TO LIMIT AXIAL MOVEMENT OF THE STEM IN OND DIRECTION ON SAID BODY, THE PORTION OF SAID STEM WITHIN THE LARGER DIAMETER BORE ENGAGING THE RADIALLY EXTENDING SHOULDER ON THE BODY TO LIMIT AXIAL MOVEMENT OF THE STEM IN THE OPPOSITE DIRECTION ON SAID BODY, THE OPPOSITE END OF SAID SLEEVE HAVING A BORE THEREIN WHICH IS SPACED RADIALLY OUTWARD FROM THE THREADED PORTION OF SAID STEM, AND A HOSE MEMBER FRICTIONALLY RETAINED IN A COMPRESSED STATE BETWEEN THE THREADED PORTION OF THE STEM AND THE SURFACE OF THE BORE IN SAID SLEEVE.