Abstract: A noise mitigation system for an aircraft comprises a cyclic pitch mechanism arranged to apply a cyclic pitch schedule to rotor blades of an unducted propulsive rotor (UPR) under control of a processor. The processor receives input data corresponding to the position and attitude of the UPR, the position of one or more ground points stored in a memory and the velocity of the aircraft. If the processor determines that a ground point will enter the plane of the UPR, a control signal is output to the cyclic pitch mechanism as necessary to adjust the phase of the cyclic pitch schedule such that the azimuthal position of the ground point on entry to the plane of the UPR lies within an azimuthal interval over which the blade pitch of the cyclic pitch schedule is below its average value, thus reducing noise in the direction of the ground point.

Abstract: A noise mitigation system for an aircraft comprises a cyclic pitch mechanism arranged to apply a cyclic pitch schedule to rotor blades of an unducted propulsive rotor (UPR) under control of a processor. The processor receives input data corresponding to the position and attitude of the UPR, the position of one or more ground points stored in a memory and the velocity of the aircraft. If the processor determines that a ground point will enter the plane of the UPR, a control signal is output to the cyclic pitch mechanism as necessary to adjust the phase of the cyclic pitch schedule such that the azimuthal position of the ground point on entry to the plane of the UPR lies within an azimuthal interval over which the blade pitch of the cyclic pitch schedule is below its average value, thus reducing noise in the direction of the ground point.

Abstract: The present invention is concerned with a fluid actuated fluid extraction system, and in particular an airflow actuated gas extraction system which in use is located in an airflow such as a natural flow of wind, and which airflow actuates the system in order to extract fluid such as a gas from a remote location such as the interior of a building, the system comprising a hollow body having at least a pair of concentric annular baffles longitudinally spaced from one another to define an annular flow channel circumscribing the body between the pair of baffles into which an actuating fluid can flow from an exterior of the body, the body further having an intake to permit an exhaust fluid to enter the body longitudinally, wherein one or more of the baffles are profiled to generate a vortex within an upstream portion of the flow channel and to effect propagation of the vortex circumferentially around the channel by means of the coanda effect

Abstract: The present invention is concerned with a wind turbine which is designed to start rotating in lower wind speeds than is conventionally possible, the wind turbine comprising a power take off shaft on which a first rotor is mounted, the first rotor having a first diameter, and on which shaft a rotatable augmentor in the form of a second rotor is mounted coaxially of the first rotor, the second rotor having a second diameter smaller than the first diameter.

Abstract: The present invention provides a pressure controlled wind turbine enhancement system and a method of enhancing the airflow past a wind turbine, the enhancement system including a two part conical nozzle to be located upwind or upstream of a turbine in order to augment the natural flow of air past blades of the turbine in a manner which produces increased power output from the turbine.

Abstract: A wind turbine system having a street light having an upright support or post on which is mounted a canopy housing any suitable lighting gear, and a wind turbine mounted above the canopy and operable to generate electrical energy with which to power the light, the canopy being adapted to augment the flow of air through the wind turbine.

Abstract: A wind turbine blade system having a main blade having a root and a tip, and at least one secondary blade secured to or formed integrally with the main blade about the tip, the at least one secondary blade being shaped and dimensioned to form, when the main blade is rotated, a shroud circumscribing a swept area of the main blade in order to improve the airflow past the main blade during operation of the wind turbine.

Abstract: A blade for use in rotary machines such as a wind turbine blade has a plurality of dimples distributed over an area of a low pressure or suction surface of the blade which preferably extends from immediately adjacent to a leading edge of the blade at least partially towards a rear or trailing edge of the blade.

Abstract: An air handling system comprising an air guide in the form of a convergent divergent shroud and/or diffuser defining a path along which air can flow, such as to generate one or more regions of reduced pressure and/or increased mass flow rate of air within the guide in response to the passage of air through the guide, and a manifold extending from the guide and having an inlet and an exhaust, the exhaust being in fluid communication with the one or more regions of reduced pressure and/or increased mass flow rate and the inlet being in fluid communication with an interior of an air handling unit such as a condenser or air conditioning unit.

Abstract: A knuckle for a railway coupler system is made without internal voids or cores. Instead, external pockets are formed on the front face and tail portion surface to reduce weight. The knuckle is formed by investment casting, which permits a pulling face to be provided without a draft angle or parting line typical of a cast part. As a result of these innovations, the knuckle according to the invention has an improved fatigue life.

Abstract: A knuckle for a railway coupler system is made without internal voids or cores. Instead, external pockets are formed on the front face and tail portion surface to reduce weight. The knuckle is formed by investment casting, which permits a pulling face to be provided without a draft angle or parting line typical of a cast part. As a result of these innovations, the knuckle according to the invention has an improved fatigue life.

Abstract: A knuckle for a railway coupler system is made without internal voids or cores. Instead, external pockets are formed on the front face and tail portion surface to reduce weight. The knuckle is formed by investment casting, which permits a pulling face to be provided without a draft angle or parting line typical of a cast part. As a result of these innovations, the knuckle according to the invention has an improved fatigue life.

Abstract: The present invention provides a pressure controlled wind turbine enhancement system which includes a two part conical shroud to be located directly upwind of a turbine in order to augment the natural flow of air past blades of the turbine in a manner which produces increased power output from the turbine.

Abstract: A knuckle for a railway coupler system is made without internal voids or cores. Instead, external pockets are formed on the front face and tail portion surface to reduce weight. The knuckle is formed by investment casting, which permits a pulling face to be provided without a draft angle or parting line typical of a cast part. As a result of these innovations, the knuckle according to the invention has an improved fatigue life.

Abstract: The present invention is concerned with a system and method for enhancing the performance of a wind turbine, which involves injecting air from an array of nozzles into the airflow upstream of the turbine in order to reduce the turbulence and/or increase the velocity and/or control the pressure of the airflow, thereby improving the performance of the turbine.

Abstract: The invention relates to a coating composition comprising (i) a supporting medium, and (ii) a plurality of cellulose particles, having an average dry particle size of less than 10 ?m, dispersed in the supporting medium, excluding aqueous coating compositions adapted for application to paper. The invention also relates to a coating composition comprising (i) a supporting medium, and (ii) a plurality of cellulose particles, having an average dry particle size of less than 10 ?m, dispersed in the supporting medium in an amount of less than about 5 g/L. The coating compositions of the invention form coatings which have useful thermal properties.

Abstract: The invention relates to a coating composition comprising (i) a supporting medium, and (ii) a plurality of cellulose particles, having an average dry particle size of less than 10 ?m, dispersed in the supporting medium, excluding aqueous coating compositions adapted for application to paper. The invention also relates to a coating composition comprising (i) a supporting medium, and (ii) a plurality of cellulose particles, having an average dry particle size of less than 10 ?m, dispersed in the supporting medium in an amount of less than about 5 g/L. The coating compositions of the invention form coatings which have useful thermal properties.

Abstract: Disclosed herein are exemplary techniques for and of marketing a loan product to a customer. The system and method establish communication with a customer regarding a current loan; access a customer service module; inputting loan information provided by the customer into the customer service module; displaying a plurality potential loan options.

Abstract: The invention relates to a coating composition comprising (i) a supporting medium, and (ii) a plurality of cellulose particles, having an average dry particle size of less than 10 &mgr;m, dispersed in the supporting medium, excluding aqueous coating compositions adapted for application to paper. The invention also relates to a coating composition comprising (i) a supporting medium, and (ii) a plurality of cellulose particles, having an average dry particle size of less than 10 &mgr;m, dispersed in the supporting medium in an amount of less than about 5 g/L. The coating compositions of the invention form coatings which have useful thermal properties.