Sampling device

Claim 1

A SAMPLING DEVICE COMPRISING (1) A SHAFT HAVING THREADED ENDS, (2) A DISC MOUNTED CONCENTRICALLY AND ROTATABLY ON SAID SHAFT, SAID DISC HAVING DEFINED THEREIN AT LEAST ONE FLOW PASSAGEWAY OFFSET RADIALLY FROM THE SHAFT AXIS, AND SUBSTANTIALLY PARALLEL TO SAID AXIS, (3) A PAIR OF SEAL PLATES MOUNTED CONCENTRICALLY ON SAID SHAFT ONE ON EITHER SIDE OF SAID DISC WITH THE SURFACE PORTIONS OF SAID PLATES IMMEDIATELY ADJACENT THOSE OF SAID DISC IN SEALING ENGAGEMENT THEREWITH, EACH OF SAID SEAL PLATES HAVING DEFINED THEREIN A PAIR OF PASSAGEWAYS EACH SUBSTANTIALLY PARALLEL TO THE AXIS OF SAID SHAFT AND EACH OFFSET RADIALLY FROM SAID AXIS AT A DISTANCE EQUAL TO THAT AT WHICH THE PASSAGEWAY THROUGH SAID DISC IS OFFSET THEREFROM, AND THE PAIRS OF PASSAGEWAYS IN SAID SEAL PLATES BEING IN ALIGNMENT FROM PLATE TO PLATE, (4) A PAIR OF RIMMED RECEIVERS MOUNTED CONCENTRICALLY ON SAID SHAFT ONE ON EITHER SIDE OF SAID PAIR OF SEAL PLATES, EACH ONE OF SAID RIMMED RECEIVERS AT LEAST PARTIALLY ENCLOSING THE SEAL PLATE IMMEDIATELY ADJACENT THERETO BUT NOT ENCLOSING THE SURFACE PORTION OF THAT SEAL PLATE IN SEALING ENGAGEMENT WITH SAID DISC, AND EACH ONE OF SAID RIMMED RECEIVERS HAVING DEFINED THEREIN A PAIR OF PASSAGEWAYS EACH SUBSTANTIALLY PARALLEL TO THE AXIS OF SAID SHAFT AND OFFSET RADIALLY FROM SAID AXIS AT A DISTANCE EQUAL TO THAT AT WHICH THE PASSAGEWAY THROUGH SAID DISC IS OFFSET THEREFROM AND EACH PASSAGEWAY THROUGH EACH RIMMED RECEIVER BEING IN ALIGNMENT WITH A PASSAGEWAY THROUGH THE SEAL PLATE WHICH THAT RIMMED RECEIVER AT LEAST PARTIALLY ENCLOSES, (5) A CONDUIT MEMBER FITTED IN AND EXTENDING THROUGH EACH PASSAGEWAY IN EACH OF SAID RIMMED RECEIVERS AND LIKEWISE FITTED IN AND EXTENDING AT LEAST PART WAY THROUGH THE ALIGNED PASSAGEWAY IN THE IMMEDIATELY ADJACENT SEAL PLATE BUT NOT EXTENDING BEYOND THE SURFACE PORTION OF THAT SEAL PLATE IMMEDIATELY ADJACENT SAID DISC, EACH CONDUIT MEMBER SERVING TO PREVENT RELATIVE ROTARY MOTION ABOUT SAID SHAFT BETWEEN THE RIMMED RECEIVER AND THE SEAL PLATE WHEREIN IT IS FITTED, (6) A COMPRESSION SPRING ELEMENT ON SAID SHAFT BEYOND A FIRST ONE OF THE RIMMED RECEIVERS, (7) A FIRST NUT THREADED ONTO ONE END OF SAID SHAFT AND IN SOLID CONTACT WITH THE EXPOSED SURFACE OF A SECOND ONE OF SAID RIMMED RECEIVERS, (8) A SECOND NUT THREADED ONTO THE OTHER END OF SAID SHAFT TO BEAR AGAINST SAID SPRING ELEMENT AND COMPRESS THE SAME AGAINST SAID FIRST ONE OF THE RIMMED RECEIVERS, AND SO COMPRESS THE AXIAL ARRAY OF SAID RIMMED RECEIVERS, SAID SEAL PLATES, AND SAID DISC AGAINST SAID FIRST NUT AND THE MEMBERS OF SAID ARRAY ONE AGAINST ANOTHER, AND (9) MEANS FOR ROTATING SAID DISC ON SAID SHAFT WITH RESPECT TO SAID SEAL PLATES.