Rotating piston machine arrangement

Claim 1

A MACHINE COMPRISING A FIRST ELEMENT, A SECOND ELEMENT CONCENTRIC WITH THE FIRST ELEMENT AND SURROUNDING THE SAME, SAID SECOND ELEMENT BEING PROVIDED WITH INTERNAL RECESSES DEFINING A PLURALITY OF ADJACENT CHAMBERS, THE FIRST ELEMENT INCLUDING AT LEAST ONE EXTENRAL LOBE, MEANS INCLUDING A GEAR MECHANISM FOR DRIVING ONE OF THE ELEMENTS IN ROTATION ALONG A PATH IN WHICH SAID LOBE OF SAID FIRST ELEMENT IS INTRODUCED AND WITHDRAWN FROM THE CHAMBERS SUCCESSIVELY, SAID GEAR MECHANISM COMPRISING A SUN GEAR COUPLED WITH THE OTHER OF THE ELEMENTS, EXTERNALLY TOOTHED PLANET GEARS IN MESH WITH THE SUN GEAR, SAID PLANET GEARS HAVING INDIVIDUAL CENTERS, AND MEANS ECCENTRICALLY SUPPORTING EACH OF THE PLANET GEARS WITH RESPECT TO ITS OWN CENTER FROM SAID ONE ELEMENT IN REGULAR ANGULAR RELATIONSHIP WITH RESPECT TO SAID SUN GEAR SUCH THAT UPON RELATIVE ROTATION BETWEEN SAID GUN GEAR AND PLANET GEARS SAID ONE ELEMENT IS CAUSED TO UNDERGO RELATIVE ROTATION WITH RESPECT TO THE OTHER ELEMENT.