Urinometer

Claim 1

IN A URINOMETER, THE COMBINATION OF: (A) AN UPRIGHT CONTAINER HAVING A SUBSTANTIALLY VERTICAL AXIS; (B) PARTITIONS IN SAID CONTAINER AND DIVIDING SAME INTO COMPARTMENTS OF EQUAL ANGULAR EXTENTS ANGULARLY SPACED ABOUT SAID AXIS; (C) A URINE RECEPTACLE ABOVE SAID COMPARTMENTS; (D) SAID RECEPTACLE HAVING A BOTTOM WALL SLOPING DOWNWARDLY TO CIRCUMFERENTIALLY-NARROW DRAINAGE OPENING SPACED FROM SAID AXIS; (E) MEANS FOR RELATIVELY ROTATING SAID RECEPTACLE AND SAID CONTAINER ABOUT SAID AXIS SO AS TO SEQUENTIALLY POSITION SAID DRAINAGE OPENING ABOVE AND IN GRAVITY COMMUNICATION WITH SAID COMPARTMENTS TO DISCHARGE URINE FROM SAID RECEPTACLE INTO SAID COMPARTMENTS IN SEQUENCE; (F) SAID PARTITIONS HAVING KNIFE EDGES AT THEIR UPPER ENDS TO PROVIDE A SHARP CUTOFF OF GRAVITY FLOW OF URINE FROM SAID DRAINAGE OPENING INTO EACH OF SAID COMPARTMENTS IN RESPONSE TO RELATIVE ROTATION OF SAID RECEPTACLE AND SAID CONTAINER; (G) SAID MEANS FOR RELATIVELY ROTATING SAID RECEPTACLE AND SAID CONTAINER OPERATING AT A CONSTANT, PREDETERMINED SPEED SO AS TO MAINTAIN SAID DRAINAGE OPENING ABOVE AND IN COMMUNICATION WITH SAID COMPARTMENTS IN SEQUENCE THROUGHOUT EQUAL, PREDETERMINED TIME INTERVALS; AND (H) MEANS FOR DELIVERING URINE FROM A PATIENT TO SAID RECEPTACLE.