http://www.freshpatents.com/Fluid-reaction-surfaces--i-e--impellers--dtnewntc416.php USPTO Class 416 - Fluid reaction surfaces (i.e., impellers) en-us Fri, 19 Dec 2008 00:12:53 -0800 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Driving-device-for-raising-or-lowering-an-airfoil-dt20081211ptan20080304962.php Fri, 19 Dec 2008 00:12:53 -0800 A wind turbine assembly with a driving device for raising and lowering a wind turbine between a lower end and an upper end of a wind turbine tower comprises a guide member extending longitudinally along the outer surface of the tower, a sleeve member coupled to the wind turbine, and... http://www.freshpatents.com/Tilting-flaps-to-drive-wind-power-generators-or-gearboxes-dt20081211ptan20080304963.php Fri, 19 Dec 2008 00:12:53 -0800 In order to use wind energy to drive a wind power generator or gearbox we usually use a certain sort of propeller rotates in a plane perpendicular to the wind direction. The “Tilting flap” is a new means to be used to achieve the same task but in more efficient... http://www.freshpatents.com/Method-of-manufacturing-a-fibre-reinforced-part-for-a-wind-power-plant-dt20081211ptan20080304971.php Fri, 19 Dec 2008 00:12:53 -0800 The invention relates to a method of manufacturing fibre-reinforced parts for a wind power plant such as eg a blade, wherein the method comprises laying out a first, outermost layer of film in the interior surface of an open mould; following which different layers are arranged on top of the... http://www.freshpatents.com/Horizontal-axis-wind-turbine-dt20081211ptan20080304964.php Fri, 19 Dec 2008 00:12:53 -0800 To provide a horizontal axis wind turbine capable of reducing flutter, and by extension, reducing the load on the wind turbine, without controlling the yaw, regardless of the direction of the wind relative to the nacelle. When the wind speed is above a specific value, the yaw angle of the... http://www.freshpatents.com/Oscillating-windmill-dt20081211ptan20080304965.php Fri, 19 Dec 2008 00:12:53 -0800 In a preferred embodiment, pairs of oscillating wind paddles are mounted in the lee of a wind turbine of the lift type. An oscillating wind paddle assembly has an upper pair of paddles moving between a first position at substantially right angles to the direction of wind and a second... http://www.freshpatents.com/Concealed-rotary-fan-dt20081211ptan20080304966.php Fri, 19 Dec 2008 00:12:53 -0800 The concealed rotary fan includes a rotary vane, a drive motor and a base. The drive motor is assembled into the base. The first end of the drive motor with the revolving shaft can be assembled onto a front support in a rotary state. The second end of the drive... http://www.freshpatents.com/Actuation-system-helicopter-using-the-same-and-controlling-method-therefor-dt20081211ptan20080304967.php Fri, 19 Dec 2008 00:12:53 -0800 An actuation system includes a pump assembly configured to form a pump chamber; an actuator having first and second chambers and a movable member and configured to convert pressures applied to the first and second chambers into a movement of the movable member; and a valve section. A controller controls... http://www.freshpatents.com/Vertical-axis-turbine-for-capturing-the-force-of-moving-gases-or-liquids-and-a-method-for-its-use-dt20081211ptan20080304968.php Fri, 19 Dec 2008 00:12:53 -0800 A vertical-axis turbine is provided, which comprises two or more arc-shaped blades which can pivot so as to decrease drag and maximize the force collected by each blade from moving gas or liquid. These arc-shaped blades can also be capable of directing moving gas or liquid from one blade to... http://www.freshpatents.com/Built-in-swing-mechanism-of-rotary-fan-dt20081211ptan20080304969.php Fri, 19 Dec 2008 00:12:53 -0800 The present invention provides an improved built-in swing mechanism of a rotary fan. The mechanism includes a ball-and-socket support frame, arranged onto front wall of the main casing corresponding to the axle center of a drive motor and provided with a spherical supporting surface and a through-hole. A spherical abut... http://www.freshpatents.com/Pump-with-rotating-inlet-dt20081211ptan20080304970.php Fri, 19 Dec 2008 00:12:53 -0800 A device for use in a molten metal pump helps alleviate jams between a rotating rotor and stationary inlet. The device includes an inlet structure including one or more openings and a displacement structure that preferably includes one or more rotor blades. The inlet structure and displacement structure are connected... http://www.freshpatents.com/Rotary-body-for-turbo-machinery-with-mistuned-blades-dt20081211ptan20080304972.php Fri, 19 Dec 2008 00:12:53 -0800 A rotary body for use in a turbo machine includes a hub having an outer edge and a plurality of slots formed in the outer edge, the slots having first and second spaced-apart opposing inner surfaces extending from the outer edge to a depth within the hub, and a plurality... http://www.freshpatents.com/Propeller-blade-retention-system-with-tapered-roller-bearing-cartridge-assemblies-dt20081211ptan20080304973.php Fri, 19 Dec 2008 00:12:53 -0800 A propeller blade mounted with a preload adjacent a propeller blade root retention which increases the moment capacity of the retention for a given pitch diameter, yet permits pitching of the propeller blade about a blade axis in response to a propeller pitch change actuation system. The propeller blade retention... http://www.freshpatents.com/First-stage-dual-alloy-turbine-wheel-dt20081211ptan20080304974.php Fri, 19 Dec 2008 00:12:53 -0800 A first-stage turbine that is adapted for receiving high energy air directly from a combustion chamber in a gas turbine engine auxiliary power unit includes a disk formed from a first alloy and having an outer surface, and a unitary blade wheel formed from a second alloy that is different... http://www.freshpatents.com/Method-for-producing-abrasive-tips-for-gas-turbine-blades-dt20081211ptan20080304975.php Fri, 19 Dec 2008 00:12:53 -0800 A method of attaching particles to a substrate, comprising the steps: providing a substrate having a surface providing an interlayer on the surface which conforms to the surface of the substrate, forming a melt pool in the interlayer, depositing a material within the melt pool, allowing the material to solidify,...