Abstract: The object of the present patent is characterized by being a brand-new device which was developed to control the esophageal flow; it is made of biosynthetic material based on the natural latex extracted from the rubber tree Hevea brasiliensis, to be applied in the esophagus in order to control or limit the speed and amount of food intake and, thus, to provide weight loss. It preserves all digestive system functions, decreases food intake with the reduction of the esophagus lumen and, in turn, decreases the organ emptying, thus controlling the speed and amount of food intake.

Abstract: A propulsion motor for rockets and spaceships comprising two cylindrical rings (17) linked by means of a bar (18) forming the motor external structure (17,18) and an exhaust (13,14,15) linked to a third cylindrical ring (17A) and to a reactor room (16) where nuclear fuel (3) explodes and generates a beam (8) directed to another nuclear fuel (10) inside the exhaust (13,14,15) which produces a thrust to a reflector magnetic field (12) and the hot plasma avoids touching the exhaust wall (13). To initiate reactions in the reactor vessel (6) and in the exhaust (13,14,15) an injection system (19) and a production system (20) the fuel (3,10) are needed.