Mass-flow determining devices

Claim 1

A COMBINED PUMP AND MASS-FLOW METER, COMPRISING A POWER-DRIVEN BLADED ROTOR MEMBER HAVING AN INLET AND OUTLET, AND A BLADED TORQUE-ASCERTAINING REACTOR MEMBER RESILIENTLY RESTRAINED FROM ROTATION AND ALSO HAVING AN INLET AND AN OUTLET, AND MEANS FOR GUIDING A FLOW OF FLUID THROUGH SAID ROTOR MEMBER FROM THE INLET TO THE OUTLET THEREOF AND THENCE THROUGH THE REACTOR MEMBER FROM THE INLET TO THE OUTLET THEREOF, WHEREIN THE OUTLET ENDS OF THE BLADES OF THE REACTOR MEMBER ARE SET AT AN ANGLE WITH REFERENCE TO THE FLOW AXIS DIFFERNT FROM THE ANGLE OF THE INLET ENDS, THE RESPECTIVE INLET AND OUTLET ANGLES OF THE BLADES OF THE ROTOR AND REACTOR MEMBERS BEING SO DETERMINED THAT WHEN THE ROTOR MEMBER IS DRIVEN AND FLUID IS ALLOWED TO FLOW THROUGH THE ROTOR AND REACTOR MEMBERS, THE SAID ANGLES OF THE BLADES OF THE REACTOR MEMBER AS WELL AS THEIR CURVATURE CAUSE A SUBSTANTIAL PORTION OF THE DRIVING POWER APPLIED TO THE ROTOR MEMBER TO BE EMPLOYED TO INCREASE THE TOTAL PRESSURE OF THE FLUID LEAVING THE REACTOR MEMBER OVER THE TOTAL PRESSURE OF THE FLUID ENTERING THE ROTOR MEMBER, THE INLET ANGLES OF THE RESPECTIVE BLADES OF THE ROTOR MEMBER AND REACTOR MEMBER BEING SO RELATED THAT WHEN FLUID IS PASSED THROUGH THE ROTOR AND REACTOR MEMBER WITH THE ROTOR HELD STATIONARY, THE FLOW OF FLUID WILL EXERT NO TORQUE UPON THE REACTOR MEMBER.