Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8167566 | Rotor dovetail hook-to-hook fit A male dovetail for a bucket mounted on a drum rotor for a steam turbine is provided by a tight hook-to-hook fit with the female dovetail of a retaining groove around the periphery of the drum rotor wheel. The tight hook-to-hook fit eliminates the use of loading pin... | 05/01/2012 |
| 8128372 | Ventilator wheel The present invention relates to a ventilator wheel comprised of a hollow-cylindrical hub with fastening flanges disposed at the circumference for the detachable mounting of ventilator blades. The hollow-cylindrical hub and fastening flanges are made of steel. The f... | 03/06/2012 |
| 8123487 | Rotor for a turbo engine A rotor for a turbo engine is disclosed including a rotor base body and a plurality of rotor blades distributed over the circumference of the rotor base body. The rotor base body is formed by at least one ring-shaped element made of a metal matrix composite material... | 02/28/2012 |
| 8079817 | Advanced firtree and broach slot forms for turbine stage 3 buckets and rotor wheels A turbine bucket and wheelpost assembly reduces the number of buckets in the third stage of the turbine from ninety-two to ninety while reducing stresses at the assembly points of the buckets and wheelposts. The buckets and wheelposts are formed with complementary f... | 12/20/2011 |
| 8070448 | Spacers and turbines Spacers and turbines are provided. In an embodiment, and by way of example only, a spacer includes a strip, a first retention flange, and a second retention flange. The strip has a first edge, a second edge, and an impingement surface, and the impingement surface ex... | 12/06/2011 |
| 8047797 | Steam turbine and rotating blade A blade is mountable to a disc. The blade comprises a blade platform and a blade root extending from the blade platform. The blade root comprises a first hook and a second hook, a first neck between the first hook and the blade platform, and a second neck between th... | 11/01/2011 |
| 8038404 | Steam turbine and rotating blade A blade mountable to a disc comprises a blade platform and a blade root extending from the blade platform. The blade root comprises first, second, and third hooks and first, second and third necks. Each hook comprises a contact surface and a non-contact surface, and... | 10/18/2011 |
| 8038405 | Spring seal for turbine dovetail A spring seal system for a turbine dovetail tab. The spring seal system may include a sealing slot positioned about the tab and a spring seal positioned within the sealing slot. The spring seal may include a substantial “U” shape. ... | 10/18/2011 |
| 8016565 | Methods and apparatus for assembling gas turbine engines A method of assembling a rotor assembly is provided. The method comprises forming at least one channel in a dovetail portion of at least one rotor blade assembly, wherein the rotor blade assembly includes an airfoil extending outwardly from the dovetail portion, ins... | 09/13/2011 |
| 8011894 | Sealing mechanism with pivot plate and rope seal A sealing system for sealing a gap between a dovetail tab of a bucket and a rotor. The sealing system may include a sealing slot positioned about the dovetail tab and a pivot plate positioned within the sealing slot. The sealing slot may include a pivot point and a ... | 09/06/2011 |
| 7918652 | Dovetail structure of fan The invention provides a dovetail structure of a fan which attaches a fan 20 having an inlet hub diameter smaller than an outlet hub diameter to a portion around a discoid disc rotationally driven by a turbine. The disc 10 has a plurality of dovetail g... | 04/05/2011 |
| 7905709 | Advanced firtree and broach slot forms for turbine stage 1 and 2 buckets and rotor wheels A turbine bucket and wheelpost assembly reduces the number of buckets in at least one of the stages of the turbine from 92 to 60 while reducing stresses at the assembly points of the buckets and wheelposts. The buckets and wheelposts being formed with complementary ... | 03/15/2011 |
| 7874806 | Turbomachine rotor blade and a turbomachine rotor A turbomachine rotor includes a plurality of turbomachine rotor blades. The turbomachine rotor has a plurality of firtree shaped slots in its radially outer periphery to form a plurality of rotor posts. The turbomachine rotor blades have correspondingly shaped firtr... | 01/25/2011 |
| 7841833 | Turbine rotor and turbine blade A turbine rotor improved in machinability, appropriately balanced in stress, and having rotor hooks and rotor necks constructed to form an attachment structure with respect to an inverted fir tree blade root that has blade hooks and blade necks. The turbine rotor ha... | 11/30/2010 |
| 7819630 | Steam turbine blade, steam turbine rotor, steam turbine with those blades and rotors, and power plant with the turbines A steam turbine blade in which the turbine blade has a blade root of the axially-inserted fir tree type and a larger number of turbine blades can be attached in a restricted outer peripheral region of a turbine rotor by arranging the blade root to be oriented in a d... | 10/26/2010 |
| 7794208 | Steam turbine rotor, inverted fir-tree turbine blade, low pressure steam turbine with those rotors and blades, and steam turbine power plant with those turbines In a turbine rotor, a rotor radial-direction hook length (Hri) of an i-th rotor hook counting from the outermost circumference of the rotor and a blade radial-direction hook length (Hbi) of an i-th blade hook counting from the outermost circumference of the blade ar... | 09/14/2010 |
| 7794207 | Disk of a disk rotor for a gas turbine Disk of a disk rotor for a gas turbine comprising a central portion (22), an intermediate portion (24), an outer portion (28), a series of axial pass-through holes (27) for a series of tie rods and a series of slots (50) for housin... | 09/14/2010 |
| 7713029 | Turbine blade with spar and shell construction A turbine blade with a spar and shell construction in which the spar includes a blade tip and a dove-tail on the root end of the spar. A pair of platform halves form a fir-tree attachment capable of sliding into an attachment slot formed within a rotor disk. The pla... | 05/11/2010 |
| 7690896 | Gas turbine disk slots and gas turbine engine using same A gas turbine engine comprises a compressor section, a combustion section disposed downstream from the compressor section, and a turbine section disposed downstream from the combustion section. The turbine section includes a turbine disk defining a plurality of turb... | 04/06/2010 |
| 7594799 | Undercut fillet radius for blade dovetails A turbine or compressor blade assembly includes a blade fixed to a dovetail section attachable to a wheel. The dovetail section has a dovetail shaped to fit in a correspondingly shaped slot in the wheel. A dovetail platform serves as an interface between the blade a... | 09/29/2009 |
| 7503751 | Apparatus and method for attaching a rotor blade to a rotor An apparatus and method for attaching a rotor blade to a rotor, particularly for a gas turbine, is disclosed. The rotor blade has a blade vane and a blade root, such that the blade vane can be attached to or anchored in the rotor by the blade root. The blade root is... | 03/17/2009 |
| 7476085 | Blade/disk dovetail backcut for blade/disk stress reduction (6FA+E, stage2) Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspon... | 01/13/2009 |
| 7476083 | Blade/disk dovetail backcut for blade/disk stress reduction (7FA+e, stage 1) Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspon... | 01/13/2009 |
| 7476084 | Blade/disk dovetail backcut for blade/disk stress reduction (6FA and 6FA+e, stage 1) Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspon... | 01/13/2009 |
| 7455505 | Device for the demounting of blades of a turbine or of a compressor A device (10) for the demounting of blades (12), which are pushed in with a blade root (20) on a wheel disk (14) of a blade wheel (16) of a turbine or of a compressor, is designed with a support (24) which is designed to be ... | 11/25/2008 |
| 7442007 | Angled blade firtree retaining system A blade root retaining system for attachment of a turbine blade to a turbine disc of a gas turbine engine comprises a blade root having at least one projection on each of opposite sides thereof, the projection extending from a leading edge to a trailing edge of the ... | 10/28/2008 |
| 7438532 | Blade/disk dovetail backcut for blade/disk stress reduction (9FA+e, stage 2) Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspon... | 10/21/2008 |
| 7431565 | Method of repairing a threaded generator rotor blower assembly A method of repairing a generator blower hub assembly (12) and rotor blade (10) removed from the generator blower hub assembly (12) where the rotor blade (10) has fatigued material in threads of a threaded blade root (14). The meth... | 10/07/2008 |
| 7419362 | Blade/disk dovetail backcut for blade/disk stress reduction (9FA+e, stage 1) Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspon... | 09/02/2008 |
| 7419361 | Blade/disk dovetail backcut for blade/disk stress reduction (7FA+e, stage 2) Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspon... | 09/02/2008 |
| 7416393 | Apparatus and method for joining a rotor blade to a rotor mount of a gas turbine rotor A gas turbine rotor and a method for manufacturing a gas turbine rotor having integral blading, is disclosed. A rotor blade has a blade pan and a blade footing connected to the blade pan. The blade footing is designed with a V-shaped cross section in at least some p... | 08/26/2008 |
| 7416389 | Methods and apparatus for assembling rotatable machines Methods and systems for ordering blades in a rotatable machine is provided. The method includes receiving at least one geometric parameter measurement of each blade in a row of blades, determining a root sum squared value of a difference of a selected one of the rec... | 08/26/2008 |
| 7399159 | Detachable leading edge for airfoils The airfoil of fan/compressor and turbine rotors is constructed to include a leading edge that is detachable. The leading edge includes an airfoil section and an attachment that is adapted to fit into a complementary groove formed in the rotor disk. The detachable l... | 07/15/2008 |
| 7351039 | Compressor rotor blade A compressor rotor blade (1) includes a rotor blade (2), a platform (3) that adjoins the rotor blade (2) and blade footing (4) that adjoins the platform (3). The rotor blade (4) is embodied so as to be massive, withou... | 04/01/2008 |
| 7334331 | Methods and apparatus for machining components A method of using a machining assembly to machine a plurality of different turbine components that include a dovetail having a contoured profile. The method includes removably coupling a first set of retainers into the machining assembly, the first set of retainers ... | 02/26/2008 |
| 7329101 | Ceramic composite with integrated compliance/wear layer The integral layer provides a ductile interface for attachment locations of a turbine engine component where a metallic surface is adjacent the attachment location. The ductile layer provides a favorable load distribution through the composite at the attachment loca... | 02/12/2008 |
| 7326035 | Device for attaching a moving blade to a turbine rotor disk in a turbomachine An attachment device for attaching a blade to a turbine rotor disk in a turbomachine, the blade root forming a male portion engaged and held radially in a cavity of complementary shape in the rotor disk, with means for preventing the blade root from moving axially i... | 02/05/2008 |
| 7322797 | Damper cooled turbine blade A turbine blade includes an airfoil, platform, shank, and dovetail integrally joined together. A cooling chamber is located under the platform and has a portal exposed outwardly from the shank. A damper seat surrounds the portal and is recessed under the platform fo... | 01/29/2008 |
| 7318704 | Gas turbine engine structure A turbine disk (20) has a sealing plate (28) fixed to it by bayonet fixing features (36) and (40) formed in sealing plate flange (30) and disk flange (38). Abutments (42) and (44) are formed on the bayonet fixi... | 01/15/2008 |
| 7312255 | Water-based coating mixture, method for application of corrosion protection layer with said mixture, substrates coated thus and use thereof The invention relates to a mixture for the application of a polymeric coating to a substrate. Said mixtures comprises water and optionally an organic solvent, at least one water-dispersible radically polymerizable compound, at least one water-dispersible polymerizab... | 12/25/2007 |
