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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7459131 | Reduced temperature regernerating/calcining apparatus for hydrogen generation A method and apparatus are disclosed for regenerating calcium oxide used in the production of hydrogen gas. The method includes steps of: (a) streaming a solid reactant into an inlet port of a contactor vessel; (b) streaming a purge oxidant into an oxidant port of t... | 12/02/2008 |
| 7458780 | Hollow fan blade for gas turbine engine Hollow fan blades for turbo fan gas turbine engines are formed of two separate detail halves. Each detail half has a plurality of cavities machined out to reduce weight and form ribs. The ribs extend continuously and without intersecting one another in order to faci... | 12/02/2008 |
| 7458768 | Borescope inspection port device for gas turbine engine and gas turbine engine using same An adapter to permit borescope access inside a gas turbine engine including a compressor stator having a plurality of compressor stator segments comprises a body portion defining a bore extending longitudinally therethrough from a first end to be disposed adjacent t... | 12/02/2008 |
| 7458584 | Reverse flow tolerant brush seal In accordance with the present application, a fluid seal 30 and fluid sealing element 32, which are tolerant of fluid F direction reversals are provided. A sealing element 32 has at least two brush stages 50 to restrict leakage of the flu... | 12/02/2008 |
| 7455913 | Thermal barrier coating compositions, processes for applying same and articles coated with same A process of coating an article includes the steps of (1) applying upon at least one surface of an article at least one graded layer of at least one ceramic based compound comprising at least one metal selected from the group consisting of lanthanum, cerium, praseod... | 11/25/2008 |
| 7455498 | Slotted bleed deflector for a gas turbine engine The invention relates to a slotted bleed deflector for a gas turbine engine. The bleed deflector comprises an inlet portion for receiving bleed air from the engine and a body for distributing the bleed air into a fan bypass duct. The body includes a leading edge sec... | 11/25/2008 |
| 7455495 | Systems and methods for monitoring thermal growth and controlling clearances, and maintaining health of turbo machinery applications A system and method for determining thermal growth of motor or engine parts to thereupon control the clearance of motor or engine fan blades is disclosed herein. In addition, a system and method for monitoring the health of a turbine engine, its components and sub-c... | 11/25/2008 |
| 7454894 | Supplemental oil cooler airflow for gas turbine engine A gas turbine engine is provided with an oil cooler which receives cooling air from a turbo fan. At times when the turbo fan is operating at lower speeds, the volume of cooling air is also lowered. At such times, a supplemental airflow is provided over heat exchange... | 11/25/2008 |
| 7454822 | Method of making bristle arrangement for brush seal A method of making a bristle arrangement for a brush seal, which includes providing a bristle arrangement; severing the bristle arrangement, the bristle arrangement now having free ends; and joining the free ends. A method of reworking a bristle arrangement for a br... | 11/25/2008 |
| 7452189 | Ceramic matrix composite turbine engine vane A vane has an airfoil shell and a spar within the shell. The vane has an outboard shroud at an outboard end of the shell and an inboard platform at an inboard end of the shell. The spar has a first chamber essentially along the suction side and a second chamber alon... | 11/18/2008 |
| 7452186 | Turbine blade including revised trailing edge cooling The present invention provides an improved cooling circuit for a trailing edge of a turbine blade. The cooling circuit includes an inlet passage that receives a airflow and distributes the airflow through a feed passage. The feed passage primarily includes trip stri... | 11/18/2008 |
| 7448848 | Variable vane arm/unison ring attachment system An attachment system for use with a variable incidence vane is disclosed. The attachment system includes a vane arm for joining a unison ring to a vane spindle. The vane arm has an arm portion and a bushing connected to the arm portion. The attachment system further... | 11/11/2008 |
| 7448843 | Rotor for jet turbine engine having both insulation and abrasive material coatings A gas turbine engine is provided with a seal disk that rotates in a closely spaced relationship to a stationary vane. The stationary vane is provided with an abradable tip. The seal disk is provided with alternating portions of a relatively insulating material and a... | 11/11/2008 |
| 7448434 | Investment casting A wax or similar material may be molded to a base plate of an investment casting shelling fixture. The molding may provide for enhanced positioning of wax patterns or may provide a precise surface shape for the shell. ... | 11/11/2008 |
| 7448221 | Turbine engine rotor stack A turbine engine has a first disk and a second disk, each extending radially from an inner aperture to an outer periphery. A coupling, transmits a torque and a longitudinal compressive force between the first and second disks. The coupling has first means for transm... | 11/11/2008 |
| 7448200 | Pulse combustion device A pulse combustion device has a number of combustors with upstream bodies and downstream nozzles. Coupling conduits provide communication between the combustors. For each given combustor this includes a first communication between a first location upstream of the no... | 11/11/2008 |
| 7445432 | Enhanced serpentine cooling with U-shaped divider rib A cooling passageway for use in an airfoil prtrion of a turbine engine component having a pressure side wall and a suction side wall is provided. The cooling passsageway comprises a serpentine flow passageway through which a cooling fluid flows. The passageway has a... | 11/04/2008 |
| 7444820 | Method and system for rich-lean catalytic combustion A gas turbine engine using a rich-lean catalytic combustion system includes a rich catalytic burner and a lean catalytic burner. The rich catalytic burner includes a rich catalytic reactor and a heat exchanger. The rich catalytic reactor catalytically burns a fuel r... | 11/04/2008 |
| 7441585 | Apparatus and method for reducing operating stress in a turbine blade and the like A core for casting a metal part having a body with solid portions spaced apart by hollow portions. The body includes at least one support element extending between adjacent solid portions. The support element provides stiffness and strength for the casting core duri... | 10/28/2008 |
| 7441448 | Process for adapting measurement suite configuration for gas turbine performance diagnostics A method and system is described that estimates gas turbine engine module performance changes from gas path measurement data using a linear predictor-corrector estimation process. A measurement configuration matrix MC and a fault configuration FC | 10/28/2008 |
| 7441331 | Turbine engine component manufacture methods A cooled turbine engine component is made by providing first and second pieces respectively having first and second surfaces. At least one circuit is formed in at least one of the first and second surfaces. A first plurality of apertures is provided in the first pie... | 10/28/2008 |
| 7438527 | Airfoil trailing edge cooling A turbine airfoil includes a span wise extending cavity formed from a ceramic mold and a slot extending from the cooling air cavity to a trailing edge being formed by a refractory metal core. The refractory metal core facilitates the reduction in the size of the slo... | 10/21/2008 |
| 7438524 | Winged structural joint and articles employing the joint A structural joint includes inner preforms 20, 22 and outer preforms 24, 26 of material. The outer preform has legs 38, 40 that extend longitudinally and laterally from a fold 42. The inner preforms project longitudinally past the fold to... | 10/21/2008 |
| 7438118 | Investment casting pattern manufacture At least one feedcore and at least one wall cooling core are assembled with a number of elements of a die for forming a cooled turbine engine element investment casting pattern. A sacrificial material is molded in the die. The sacrificial material is removed from th... | 10/21/2008 |
| 7434405 | Bleed diffuser for gas turbine engine A gas turbine engine includes a compressor section, a combustion section communicating with and disposed downstream of the compressor section relative to a direction of airflow, and a gas turbine section communicating with and disposed downstream of the combustion s... | 10/14/2008 |
| 7435050 | Split flange V-groove and anti-rotation mating system There is provided a turbine engine component, such as a duct pipe, comprising an annular flange, at least one element, such as two duct pipe halfs, to be mated to the flange, and mating system for joining the at least one element to the flange. The mating system inc... | 10/14/2008 |
| 7435283 | Modular fuel stabilization system A fuel stabilization system includes a first deoxygenator and a second deoxygenator both for removing dissolved oxygen from a hydrocarbon fuel. The first and second deoxygenators are arranged in parallel or series to sequentially remove a portion of dissolved oxygen... | 10/14/2008 |
| 7434384 | Fluid mixer with an integral fluid capture ducts forming auxiliary secondary chutes at the discharge end of said ducts A fluid mixer for mixing two fluid streams 40, 42 includes a set of main lobes 26 defining alternating primary and secondary main chutes 30, 32, one or more auxiliary lobes 28 intermediate two of the main lobes, and an auxiliary fluid cap... | 10/14/2008 |
| 7430850 | Bifurcated oil scavenging bearing compartment within a gas turbine engine An oil scavenge system includes a tangential scavenge scoop and a settling area adjacent thereto which separately communicate with a duct which feeds oil into an oil flow path and back to an oil sump. A shield is mounted over the settling area to at least partially ... | 10/07/2008 |
| 7431559 | Dirt separation for impingement cooled turbine components A vane for use in a gas turbine engine has a leading edge facing an upstream combustor. The vane has hollow areas that receive an impingement tube for delivering impingement air. The impingement tube includes a radially outer portion and a radially inner portion. An... | 10/07/2008 |
| 7431818 | Electrochemical fuel deoxygenation system A fuel system for an energy conversion device includes a deoxygenator system with an electrochemical conversion system to remove oxygen from fuel through conversion of the oxygen to water. The electrochemical conversion system is located within a fuel flow. On the f... | 10/07/2008 |
| 7429174 | Clean atmosphere heat treat for coated turbine components A method for heat treating at least one workpiece, such as a coated turbine engine component, is provided. The method comprises the steps of cleaning a furnace to be used during the heat treating method, which cleaning method comprising injecting a gas at a workpiec... | 09/30/2008 |
| 7428724 | Interactive interface for engineering standard work A method and system for managing complex projects uses a framework having workflow maps containing activity blocks that provide detailed, easily accessible information within the framework about the project. The framework links functional groups, their associated ac... | 09/23/2008 |
| 7422771 | Methods for applying a hybrid thermal barrier coating A method for applying a hybrid thermal barrier coating, comprising masking at least a portion of a first surface of a component with a first maskant; applying a first coating material to at least a portion of a second surface of said component; removing said first m... | 09/09/2008 |
| 7422671 | Non-line-of-sight process for coating complexed shaped structures Non-line-of-sight process for coating complexed shaped structures of Si-based substrates with protective barrier layers. ... | 09/09/2008 |
| 7419556 | Method of repair for inlet caps of turbine engines A method for repairing a damaged inlet cap of a turbine engine includes removing a damaged portion of a structural fiber layer positioned beneath a first erosion-resistant layer. A structural replacement layer is applied to the inlet cap to replace the removed porti... | 09/02/2008 |
| 7419298 | Thermal imaging method and apparatus An inspection apparatus includes a light source positioned to direct light to a first surface of a workpiece. An infrared detector is positioned to receive radiation from the first surface. A data acquisition and processing computer is coupled to the light source an... | 09/02/2008 |
| 7415827 | Arrangement for controlling fluid jets injected into a fluid stream In an air mixing arrangement wherein a primary fluid is introduced through an opening in a wall to be mixed with a secondary fluid flowing along the wall surface, the opening is airfoil shaped with its leading edge being orientated at an attack angle with respect to... | 08/26/2008 |
| 7415328 | Hybrid model based fault detection and isolation system Method for detecting faults in a device comprising the steps of receiving a plurality of performance parameters, applying the plurality of performance parameters to a first model to produce a plurality of estimated performance parameters, applying the plurality of p... | 08/19/2008 |
| 7413621 | Aluminum base alloys High strength, high ductility aluminum base alloys containing from 3 to 18.5 atomic percent nickel and 3 to 14.0 atomic percent yttrium, said alloy being in the devitrified state and containing less than 40 percent intermetallic phases. ... | 08/19/2008 |
