Rotary gas motor and compressor with conical rotors

Claim 1

A ROTARY MOTOR FOR GASEOUS FLUIDS ADAPTED TO BE SELECTIVELY OPERATED AS A COMPRESSOR, COMPRISING, IN COMBINATION, A CASING HAVING AXIALLY ALIGNED INLET AND OUTLET FLOW PORTIONS PROVIDED AT OPPOSITE ENDS OF SAID CASING, AND TWO ROTORS JOURNALED IN SAID CASING FOR ROTATION IN OPPOSITE DIRECTIONS, SAID ROTORS HAVING SUBSTANTIALLY COPLANAR AND INTERSECTING AXIAL LINES, SUBSTANTIALLY IDENTICAL CONICAL PERIMETERS AND MESHING HELICAL THREADS, THE NUMBER OF THREADS IN ONE OF THE ROTORS EXCEEDING BY ONE THE NUMBER OF THREADS IN THE OTHER ROTOR, SAID ONE ROTOR HAVING FEMALE THREADS WITH A CONCAVE PROFILE AND A SECTION CORRESPONDING TO A SPHERICAL TROCHOID WHILE SAID OTHER ROTOR HAS MALE THREADS WITH A CONVEX PROFILE AND A SECTION CORRESPONDING TO A SPHERICAL CYCLOID, SAID PROFILES APPEARING ON BOTH SIDES OF THE RESPECTIVE THREADS AND FORMING PART OF SPHERICAL SURFACES OF WHICH THE CENTERS COINCIDE WITH THE INTERSECTING POINT OF SAID AXIAL LINES, THE BOTTOMS OF SAID THREADS FORMING CONES, THE HEIGHTS OF SAID THREADS DECREASING FROM ONE AXIAL END OF SAID ROTORS TO THE OTHER, THE THREADS OF SAID ROTORS FORMING RESPECTIVE ROTOR GROOVES THEREBETWEEN WHICH CONTACT EACH OTHER SO AS TO PROVIDE A CONTINUOUS SEALING LINE ALONG THE ENTIRE LENGTHS OF SAID ROTORS, WHEREBY THE GASEOUS FLUID CONFINED IN ONE GROOVE IS PREVENTED FROM MINGLING WITH THE FLUID CONTAINED IN NEIGHBORING GROOVES, AND THE FLUID IS EXPANDED AND SELECTIVELY COMPRESSED BETWEEN SAID GROOVES OF THE TWO ROTORS DEPENDING UPON THE MODE OF OPERATION AND THE SENSE OF ROTATION OF SAID ROTORS.