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| Number | Title | Issue Date |
| 8142163 | Turbine blade with spar and shell A turbine blade for use in a gas turbine engine, the turbine blade being made from a spar and shell construction in which the spar extends from the root and forms a cavity in which cooling air is supplied to the blade. The shell is held between the tip cap and the p... | 03/27/2012 |
| 7891947 | Turbine blade and method of fabricating the same A turbine blade includes at least two blade segments. Each blade segment includes first and second shells joined together, a base region, at least one joint region including a mating face. Each of the first and second shells includes an outer skin, a base spar cap a... | 02/22/2011 |
| 7866950 | Turbine blade with spar and shell A turbine blade for use in a gas turbine engine, where the turbine blade is made from a spar and shell construction in which a thin walled shell is held in place between the blade tip and the platform by only a mechanical fastener without using any bonding, welding ... | 01/11/2011 |
| 7393184 | Modular blades and methods for making same A method for making a blade includes stacking a plurality of modular segments having formed conduits, threading and tensioning cables through the conduits of the stacked segments, and clamping the cables to hold the modular segments together. ... | 07/01/2008 |
| 7377750 | Lightning protection system for a wind turbine In a wind turbine (104, 500, 704) having a plurality of blades (132, 404, 516, 744) and a blade rotor hub (120, 712), a lightning protection system (100, 504, 700) for conducting lightning strikes to any one of the blades and the region s... | 05/27/2008 |
| 7320582 | Encapsulating fibrous inserts with molding material Disclosed is a molding system. According to an aspect, the molding system includes molding-system elements configured to process a molding material. The molding system includes a mold surface configured to cooperate with the molding-system elements. The molding syst... | 01/22/2008 |
| 7273349 | Fabric fan blade and fan body trim The conventional fan blade is replaced by a frame over which any of a wide range of decorative fabrics or other similar materials is drawn and secured by a clamping method to form a lightweight fan blade of any surface design desired by the user. The decorative fabr... | 09/25/2007 |
| 7229253 | Fatigue-resistant components and method therefor A metallic component is by at least one peripheral edge. The component includes at least one elongated treated zone having a length substantially greater than its width. This treated zone is spaced away from and disposed generally parallel to the peripheral edge of ... | 06/12/2007 |
| 7186086 | Separable blade for wind turbine A separable blade for a wind turbine, the separable blade being divided at a center part thereof in a longitudinal direction into an inner blade portion corresponding to a blade root side and an outer blade portion corresponding to a blade end portion, wherein the s... | 03/06/2007 |
| 7163378 | Embedding element to be embedded in the end part of a windmill blade, a method producing such an embedding element as well as embedding of such embedding elements in a windmill blade An embedding element (11) for embedment in the root of a wind turbine rotor blade (15) of a fibre composite material, said embedding element being elongated and having a first end portion (1) and a second end portion (2) and provided with... | 01/16/2007 |
| 7011497 | Shaft/hub unit for wind turbine rotor A rotor shaft/hub unit for a wind energy plant with a rotor shaft provided with a rotor bearing seat which is connected to a rotor hub provided with a blade or blade bearing connection, the rotor hub and rotor shaft are manufactured in one piece from bonded fiber fa... | 03/14/2006 |
| 6942461 | Rotor blade hub The present invention concerns a rotor blade hub for a wind power installation. Such a hub represents a mechanical connection between the (horizontal) rotor shaft (rotor spindle) and the rotor blades. This means that all forces which occur at the rotor blades, insof... | 09/13/2005 |
| 6802474 | Advanced high turning compressor airfoils In a high turning airfoil capable of being suitably applied to each of blades constituting a blade row of an axial flow-type compressor, both of an intrados generating a positive pressure and an extrados generating a negative pressure exist on one side of a chord li... | 10/12/2004 |
| 6146097 | Fan blade assembly for use with a ceiling fan drive unit A fan blade assembly for a ceiling fan has lightweight, oversized blades formed by a support frame with a blade covering material stretched over the frame. A lighting fixture attached to the support frame rotates with the fan blades. The fan blades are co... | 11/14/2000 |
| 5499904 | Vertical axis wind turbine with pultruded blades A pultruded composite blade for a Darrieus-type vertical axis wind turbine is disclosed, along with a method for fabricating such a blade. The blade is a composite structure with a uniform cross-section with reinforcing fibers at least some of which exten... | 03/19/1996 |
| 4915590 | Wind turbine blade attachment methods A rotor blade for a horizontal axis wind turbine wherein a multiplicity of sucker rods are utilized internally of the blade root for securing the blade to the rotating hub of the turbine including the method of attaching the blade root to the hub and the ... | 04/10/1990 |
| 4773824 | Rotor of a wind power installation The journals of two vanes of the wind turbine are connected with one another by a connecting rod 26 for absorption of the centrifugal forces of the vanes. Bearings with spherical faces are arranged between the ends of the connecting rod and the journals. ... | 09/27/1988 |
| 4563128 | Ceramic turbine blade having a metal support core A hot gas impinged turbine blade suitable for use under super-heated gas operating conditions has a hollow ceramic blade member and an inner metal support core extending substantially radially through the hollow blade member and having a radially outer wi... | 01/07/1986 |
| 4473336 | Turbine blades The present invention relates to turbine blades and in particular to turbine blades for use in gas turbine engines. Tensile stresses are introduced into turbine blades when they rotate at high speeds on a turbine rotor. In order to minimize the stresses i... | 09/25/1984 |
| 4389162 | Rotor blade comprising a plurality of individual sections A rotor blade, for example for a windmill, comprises a plurality of blade ctions between a blade root and a tip. The sections are interconnected by tensioning members such as steel cables or the like, preferably extending through the blade sections. Thus,... | 06/21/1983 |
| 4314794 | Transpiration cooled blade for a gas turbine engine A transpiration cooled blade for a gas turbine engine is assembled from a plurality of individual airfoil-shaped hollow ceramic washers stacked upon a ceramic platform which in turn is seated on a metal root portion. The airfoil portion so formed is enclo... | 02/09/1982 |
| 4150906 | Cable loop connector A connector, by which a pair of loops at the ends of a pair of cables are connected together releasably, include a body having therethrough a longitudinal opening which is of uniform width of a first longitudinal plane and tapered in width in the second l... | 04/24/1979 |
| 4029434 | Variable pitch mounting for airfoil blades of a windmill or propeller A blade mounting having journal and thrust bearings locating the blades in a hub to relieve load and therefore friction by a torsionally flexible tension member secured within each blade so that centrifugal forces of the blade are transmitted directly to ... | 06/14/1977 |
