Abstract: A device that propels a swimmer to move above or below the water surface allowing it to ascend, dive or turn on its axis is disclosed. It allows great capability of movement in water, due to its control fins. This allows it to be used as a sport, recreational, water use item, such as diving or to equip lifeguards or water rescue teams that need to move at higher speeds.

Abstract: A device that propels a swimmer to move above or below the water surface allowing it to ascend, dive or turns on its axis is disclosed. It allows great capability of movement in water, due to its control fins. This allows it to be used as a sport, recreational, water use item, such as diving or to equip lifeguards or water rescue teams that need to move at higher speeds.

Abstract: The object of this disclosure is to cool the brakes of the landing gear of an aircraft. For this, it uses the air of the same air conditioning system of the airplane. The supply to the air conditioning system of the airplane can receive pre-conditioned air from outside by an air inlet in the lower part of the fuselage of the airplane to which an external equipment is connected. This air inlet has a non-return valve inside, which prevents the air from going outside. In order to extract the air from the air conditioning system of the airplane while it is on the ground, it is necessary to overpass the air valve. For this purpose, a tool that overpasses that valve from outside has been designed, and in this way, extracting and directing the air through connectors and tubes to the brakes, cooling them for a new takeoff.

Abstract: The object of this disclosure is to cool the brakes of the landing gear of an aircraft. For this, it uses the air of the same air conditioning system of the airplane. The supply to the air conditioning system of the airplane can receive pre-conditioned air from outside by an air inlet in the lower part of the fuselage of the airplane to which an external equipment is connected. This air inlet has a non-return valve inside, which prevents the air from going outside. In order to extract the air from the air conditioning system of the airplane while it is on the ground, it is necessary to overpass the air valve. For this purpose, a tool that overpasses that valve from outside has been designed, and in this way, extracting and directing the air through connectors and tubes to the brakes, cooling them for a new takeoff.