Abstract: Various embodiments of an apparatus and method of multi-course infusion for brewing tea and other beverages are provided. In one aspect, a method of multi-course infusion for brewing tea and other beverages may receive, in an infusion chamber of an apparatus, an amount of beverage medium in dried state. The method may also provide steam into the infusion chamber to pre-condition the beverage medium. The method may further perform multi-course infusion of the beverage medium in hot water by repeating more than once a process that includes: showering hot water down onto the beverage medium in the infusion chamber, infusing the beverage medium in the hot water for some infusion time to form the beverage, providing steam into the infusion chamber while the beverage medium is infused in the hot water, drawing the beverage into one or more carafes after the infusion time has elapsed.

Abstract: A flow direction control mechanism is provided, which includes at least a rotatable means provided in a passage of an electronic system or apparatus. The rotatable means moves to an open position by means of a force generated from fluids flowing through the passage and returns to a close position in the absence of the force. Further, a restrictor is disposed adjacent to the rotatable means for restricting movement of the rotatable means between the open position and the close position.

Abstract: A flow direction control mechanism is provided, which includes at least a rotatable means provided in a passage of an electronic system or apparatus. The rotatable means moves to an open position by means of a force generated from fluids flowing through the passage and returns to a close position in the absence of the force. Further, a restrictor is disposed adjacent to the rotatable means for restricting movement of the rotatable means between the open position and the close position.

Abstract: A flow direction control mechanism is provided, which includes at least a rotatable means provided in a passage of an electronic system or apparatus. The rotatable means moves to an open position by means of a force generated from fluids flowing through the passage and returns to a close position in the absence of the force. Further, a restrictor is disposed adjacent to the rotatable means for restricting movement of the rotatable means between the open position and the close position.

Abstract: A magnetic bearing structure is used in a rotating device that includes a bearing base, a set of coils around a stator mounted on the bearing base, and a rotation shaft mounted on a rotor so that when the set of coils is excited with an electrical current, the rotor rotates. The magnetic bearing structure includes a magnetic shaft attachment in a concave or convex form and fixed on the rotation shaft; and a magnetic stator attachment in a concave or convex form and fixed to the magnetic shaft attachment; wherein the magnetic bearing structure is used to control the position of the rotor in both a radial direction and an axial direction by repulsive magnetic forces produced between the magnetic shaft attachment interacts with the magnetic stator attachment.