Disconnect with minimum inclusion

Claim 1

A DISCONNECT FOR A FLUID SUPPLY LINE THAT MINIMIZES BOTH AIR ENTRAPMENT AND FLUID LOSS, WHICH COMPRISES IN COMBINATION, AN UPSTREAM BODY SECTION WITH A FLUID INLET THERETO AND A FLUID OUTLET PORT ENCOMPASSED BY A VALVE SEATING PORTION, A HOLLOW UPSTREAM VALVE MEMBER CONCENTRICALLY AND SLIDABLY POSITIONED WITHIN SAID BODY SECTION AND HAVING A DOWNSTREAM PLUG PORTION ADAPTED TO MOVE AGAINST THE SEATING PORTION OF SAID BODY SECTION, A DOWNSTREAM BODY SECTION WITH FLUID INLET PORT THERETO IN AXIAL ALIGNMENT WITH SAID UPSTREAM BODY SECTION AND ENCOMPASSED BY A VALVE SEATING PORTION, A DOWNSTREAM DISCHARGE END PORTION FROM SAID DOWNSTREAM BODY SECTION, A HOLLOW DOWNSTREAM VALVE MEMBER CONCENTRICALLY AND SLIDABLY POSITIONED WITHIN LAST SAID BODY SECTION AND HAVING AN UPSTREAM PLUG POSITION ADAPTED TO MOVE AGAINST THE SEATING PORTION OF SAID DOWNSTREAM BODY SECTION, SPRING MEANS BETWEEN LAST SAID BODY SECTION AND SAID DOWNSTREAM VALVE MEMBER AT THE DOWNSTREAM END OF THE LATTER BIASING SAID PLUG PORTION IN A NORMALLY CLOSED POSITION, SAID PLUG PORTIONS AND SAID BODY SECTIONS HAVING FLAT FACES TO MEET ONE ANOTHER AND EXCLUDE AIR UPON MAKING A COUPLING, MOVABLE BALL LOCK MEANS CARRIED IN ONE OF SAID DISCONNECT SECTIONS AND ADAPTED TO ENGAGE BALLGROOVE MEANS IN THE OTHER BODY SECTIONS, A LOCK SLEEVE SLIDABLY ENCOMPASSING AT LEAST A PORTION OF SAID UPSTREAM BODY SECTION AND IN ADDITION HAVING MEANS FOR CONTACTING SAID BALL LOCK MEANS WHEREBY THE LONGITUDINAL POSITIONING OF SAID LOCK SLEEVE WILL OPTIONALLY HOLD SAID DISCONNECT BODY SECTIONS IN ENGAGEMENT WITH EACH OTHER AS WELL AS OPTIONALLY PERMIT THE DISENGAGEMENT THEREOF, AND LEVER ARM MEANS EXTENDING FROM A RECESS IN THE WALL OF SAID UPSTREAM VALVE MEMBER THROUGH PIVOT SUPPORT MEANS IN SAID UPSTREAM BODY SECTION TO RECESS MEANS IN THE SIDE OF SAID LOCK SLEEVE MEMBER, WHEREBY MOVEMENT OF SAID LOCK SLEEVE WILL SLIDE SAID UPSTREAM VALVE MEMBER AND PROVIDE A SEATING OF THE PLUG PORTION THEREOF WITH SAID SEATING PORTION OF THE UPSTREAM BODY SECTION WHEN THE LATTER IS BEING DISENGAGED AND CONVERSELY SAID LOCK SLEEVE WILL OPEN THE PLUG PORTION FROM SUCH BODY SECTION AS THE LATTER COMES INTO CONTACT WITH THE DOWNSTREAM BODY SECTION AND IS LOCKED THEREWITH BY THE MOVABLE BALL LOCK MEANS.