Device for bleeding off a fluid under pressure

Claim 1

IN A QUICK-DISCONNECT TUBULAR FITTING OF THE TYPE HAVING A PAIR OF SEALING LEVERS PIVOTALLY ATTACHED TO THE SIDE OF THE FITTING AND FUNCTIONING TO BIAS AN ADAPTOR INTO SEALING CONTACT WITH A SEAT INSIDE THE FITTING, THE IMPROVEMENT WHICH COMPRISES A WALL PORTION OF SAID FITTING HAVING A CAPILLARY ORIFICE COMMUNICATING WITH THE INTERIOR OF SAID FITTING, AND FURTHER HAVING A CYLINDRICAL COUNTERBORE OF LARGER DIAMETER THAN SAID ORIFICE COMMUNICATING AT ITS INNER END WITH SAID ORIFICE AND AT ITS OUTER END WITH THE ATMOSPHERE AROUND SAID FITTING; A VALVE BODY MOVABLY MOUNTED IN SAID COUNTERBORE AND ADAPTED TO SEAL SAID ORIFICE, SAID VALVE BODY DEFINING WITH THE WALL OF SAID COUNTERBORE A PASSAGEWAY BYPASSING SAID VALVE BODY; MEANS SECURED TO THE OUTER SURFACE OF SAID WALL PORTION FOR BIASING SAID VALVE BODY INTO SEALING POSITION OVER SAID ORIFICE; LATCHING MEANS FOR RETAINING SAID BIASING MEANS IN ITS VALVE CLOSING POSITION, SAID MEANS FOR BIASING SAID VALVE BODY INTO SEALING CONTACT WITH SAID VALVE SEAT COMPRISING A LATCHING LEVER PIVOTALLY SECURED AT ONE OF ITS ENDS TO SAID WALL PORTION AND HAVING A CAMMED SURFACE THEREON COOPERATING WITH THE UPPER END OF SAID VALVE BODY TO URGE