Mortician's body cavity injector

Claim 1

A CAVITY INJECTOR HAVING A PISTOL-LIKE CONFIGURATION AND COMPRISING A HOUSING WITH A DEPENDING HANDLE AND A TRIGGER, A TROCAR SECURED TO SAID HOUSING AND EXTENDING FORWARDLY THEREFROM, AN EMBLAMING FLUID CONTAINER CARRIED BY SAID HOUSING, SAID CONTAINER BEING INVERTED AND MOUNTED ABOVE SAID HOUSING SO THAT FLUID FROM SAID CONTAINER WILL TEND TO FLOW INTO SAID HOUSING, A VENT TUBE UPSTANDING FROM SAID HOUSING AND EXTENDING INTO SAID CONTAINER, SAID TUBE VENTING TO THE AMBIENT ATMOSPHERE THROUGH SAID HOUSING, A FORWARDLY FACING STATIONARY PISTON MOUNTED IN SAID HOUSING, A MOVABLE PISTON WITH A REARWARDLY EXTENDING CYLINDRICAL SKIRT MOUNTED IN SAID HOUSING FORWARD OF SAID STATIONARY PISTON WITH SAID SKIRT SLEEVED ON THE LATTER, A TUBULAR STEM EXTENDING FROM SAID TROCAR THROUGH SAID MOVABLE PISTON AND FORMING A SEAL THEREWITH, SAID PISTONS DEFINING A CHAMBER THEREBETWEEN, AN INJECTOR PASSAGEWAY LEADING FROM SAID CHAMBER THROUGH SAID STEM AND TROCAR, A CHECK VALVE TO BLOCK REVERSE FLOW IN SAID EJECTOR PASSAGEWAY, A CHARGING PASSAGEWAY LEADING FROM SAID CONTAINER INTO SAID CHAMBER TO BRING FLUID FROM SAID CONTAINER THERETO, A CHECK VALVE TO PREVENT REVERSE FLOW IN SAID CHARGING PASSAGEWAY, AND SPRING MEANS TO URGE SAID MOVABLE PISTON AWAY FROM SAID STATIONARY PISTON SO AS TO DRAW A CHARGE FROM SAID CONTAINER, SAID TRIGGER BEING SECURED TO SAID MOVABLE PISTON AND DEPENDING THROUGH A LONGITUDINAL SLOT IN SAID HOUSING WHEREBY RETRACTION OF SAID TRIGGER IN OPPOSITION TO SAID SPRING MEANS EJECTS A CHARGE OF FLUID FROM SAID CHAMBER THROUGH SAID STEM AND TROCAR AND RELEASE OF SAID TRIGGER ALLOWS SAID SPRING MEANS TO MOVE SAID CYLINDER FORWARD SO AS TO DRAW IN A CHARGE OF FLUID FROM SAID CONTAINER.