Abstract: This invention relates to an occlusion device for the closure of physical defects. The occlusion device is capable of self-centering itself in the defect. This allows the center of the occluder to remain properly positioned in the defect, while maintaining a low profile against the tissue.

Abstract: A variable rotor blade mechanism for use in a gas turbine engine comprises a blade rotor, a blade, a harmonic drive system, a stepper motor and a bracket. The blade rotor rotates absolutely about an axial engine centerline during operation of the gas turbine engine. The blade extends radially from the blade rotor and is configured to be adjustable by rotation about a radial axis. The harmonic drive system is mounted to the blade rotor and connected to the blade to rotate the blade about the radial axis. The stepper motor drives the harmonic drive with relative rotational input with respect to the absolute rotation of the blade rotor. The bracket is disposed about the engine centerline and supports the stepper motor stationary with respect to the rotation of blade rotor such that the relative rotational input to the stepper motor is generated.

Abstract: A variable vane mechanism comprises a variable vane, an inner diameter shroud and a synchronizing mechanism. The variable vane comprises a vane body, an inner diameter trunnion extending radially inwardly from the vane body, and a button connected to the inner diameter trunnion and displaced radially inwardly from the inner diameter trunnion. The shroud comprises a shroud body, a socket extending into the shroud body for receiving the inner diameter trunnion, a flange extending into the socket for engaging the button and inhibiting radial movement of the variable vane, and a synchronizing channel extending through the inner diameter shroud aft of the socket so as to be bounded by the shroud body and opening to the socket. The synchronizing mechanism is disposed inside the synchronizing channel and connects to the inner diameter trunnion.

Abstract: A coupling mechanism for a scroll compressor comprises an orbiting scroll disk, a retention bolt, a bearing shaft and a retention nut. The orbiting scroll disk includes a first face configured to engage a stationary scroll disk to compress a working fluid, and a second face having a hub. The retention bolt is inserted into the hub. The bearing shaft is fit onto the retention bolt and includes a bearing surface for engaging a drive bushing of a drive shaft. The retention nut is threaded onto the retention bolt to retain connection of the bearing shaft with the orbiting scroll disk.

Abstract: A wireless mesh network routes messages between a host computer and a plurality of field devices. The mesh network is synchronized to a global regular active schedule that defines active periods when messages can be transmitted or received by nodes of the network, and inactive periods when messages cannot be transmitted or received. Based upon messages to be sent by the host computer to selected field devices, the network is controlled to selectively maintain active those nodes required to route messages to the selected field devices. Those required nodes are maintained in an active state as long as communication with the selected field devices continues, while other nodes are allowed to return to a low power inactive state. When communication between the host computer and the selected field devices is no longer required, the entire network is allowed to enter the low power inactive state.

Abstract: In one embodiment, a manually operated internal Venetian blind for raising/lowering a plurality of slats is disclosed, and comprises a stationary bearing housing, a longitudinally displaceable bifurcated bearing block, a counterweight interconnected to the bearing block and housing at least one internal magnet, and a first linearly displaceable actuator disposed outwardly to one of two glass sheets and provided with at least one external magnet at a fixed distance from the internal magnet. The displacement of the first actuator is significantly less than the displacement of the longitudinally lowest slat due to the winding of central cords around a ball bearing housed within the bearing block.

Abstract: A head suspension assembly for carrying a slider assembly in a disc drive has a beam component having a front end and a rear end, a hinge component near the rear end of the beam component for connecting to an actuation means, and a gimbal component near the front end of the main beam section for carrying a transducing head. At least one of the hinge component and the gimbal component is made from a structural damping material having high stiffness and high damping capacity.

Abstract: Disclosed is a low dielectric constant plasma polymerized thin film using linear organic/inorganic precursors and a method of manufacturing the low dielectric constant plasma polymerized thin film through plasma enhanced chemical vapor deposition and annealing using an RTA apparatus. The low dielectric constant plasma polymerized thin film is effective for the preparation of multilayered metal thin films having a thin film structure with very high thermal stability, a low dielectric constant, and superior mechanical properties.

Abstract: Entertainment content is delivered in an encrypted digital format from a home base via satellite to individual lodging properties (sites) having an in-room entertainment system. Each digital file containing content (such as a movie) is accompanied by a sites file which identifies the name of the content file and the sites to which the content file is being transmitted. Each site includes a host computer, a digital content receiver, a digital content server guest terminals in the guest rooms, and a distribution network for distributing content from the digital content server to the guest terminals. The digital content receiver receives the transmitted digital content and sites files, and provides the files to the digital content server for storage and later use.

Abstract: An attaching system for mounting a device to a weapon is provided. The attaching system includes an attaching ring, a mounting rail and a threaded attaching member. The attaching ring includes a weapon attaching portion, a retaining portion and an extending portion. The weapon attaching portion is configured to attach to a weapon. The retaining portion is configured to receive and hold a mounting rail. The retaining portion includes a retaining aperture. The extended portion is coupled between the weapon attaching portion and the retaining portion. The extending portion has a select length to space the weapon attaching portion from the retaining portion a select distance. The mounting rail is configured to be received in the retaining portion. The mounting rail has a threaded recess. The threaded attaching member is configured to pass through the retaining aperture and to threadably engage the threaded recess of the mounting rail.

Abstract: A composition for deposition as a coating includes a matrix material having a molten fraction of between about 33% and about 90% by volume and a filler material interspersed within the matrix.

Abstract: A method of mounting an autonomous electronic device onto a crossbow including the steps of attaching a scope mount ring to a scope on the crossbow; attaching a device mount to the scope mount ring; and securing an autonomous electronic device selected from a video camera and a range finder to the device mount.

Abstract: A pressure compensating IV rate flow regulator having a housing with a metering port and an outlet. The flow rate is set by adjusting a flexible disk to vary the clearance between metering port and flow passageway. The controlled fluid passes to a land surrounding the outlet. A flexible control membrane having specific design and material characteristics extends across the land and will move or oscillate away or towards the outlet port in response to changes in head pressure, venous back pressure or patient movement. The resulting oscillation of the membrane serves to maintain the flow rate originally set by the clinician. The regulator is provided with safety and operational convenience features such as tactile indicators for “off” and KVO settings and has provision for use with accessory items such as a pole mount holder or anchoring device secured at the forearm or chest.

Abstract: A wireless mesh network is formed by nodes having a regular active schedule for transmitting and receiving messages, and a fast active schedule mode that is locally activated when a demand exists for transmission of a larger number of messages. As each node transmits a message to another node, the transmitting node includes a message buffer queue parameter that indicates the number of messages in the transmitting nodes, pending message queue. The receiving node determines, based upon the message buffer queue parameter received and its own capacity, whether to continue on the regular schedule, or to activate the fast active schedule. If the fast active schedule is activated, the receiving node sends a special acknowledge message back to the sending node, so that both nodes will transmit and receive messages over a fast active schedule link until the message buffer of the sending node has been reduced and the fast active schedule can be deactivated in favor of the regular active schedule.

Abstract: A coke removal system removes coke deposits from the walls of a high temperature passage in which hydrocarbon fuel is present. The system includes a carbon-steam gasification catalyst and a water source. The carbon-steam gasification catalyst is applied to the walls of the high temperature passage. The water reacts with the coke deposits on the walls of the high temperature passage to remove the coke deposits from the walls of the high temperature passage by carbon-steam gasification in the presence of the carbon-steam gasification catalyst.

Abstract: A method of forming high temperature heat treatable aluminum alloys that can be used at temperatures from about ?420° F. (?251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L12 intermetallic compound Al3X. These alloys comprise aluminum, copper, magnesium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium. Lithium is an optional alloying element.

Abstract: A generator control unit (GCU) provides active damping of a synchronous generator by monitoring the speed of the synchronous generator and detecting oscillations in the monitored speed. The oscillations are indicative of torsional oscillations within the mechanical drivetrain including the synchronous generator or generators. In response to detected oscillations in the monitored speed, the GCU generates a varying set-point value that is used to control the excitation voltage provided to the synchronous generator. Varying the excitation voltage provided to the synchronous generator causes a variation in synchronous generator torque. By selectively varying the torque in the synchronous generator, the GCU provides active damping in the synchronous generator that decreases or dampens the torsional oscillations.

Abstract: A cover and lifter for use with an outdoor device having at least one ventilation port, such as a calf hutch and the like, including a shaft having a hook on its outer end and a fastener on its inner end that holds a lift plate against the under side of the top of the outdoor device. Preferably the materials from which the cover and lifter are made are weather resistant, such as stainless steel.

Abstract: A flame-resistant fabric for shelters including a flame-resistant interior layer, an flame-resistant, insulating middle layer adjacent the interior layer, a flame-resistant exterior layer adjacent the insulating middle layer, and at least one threaded seam quilting the insulating middle layer between the interior layer and the exterior layer to form a flame-resistant fabric. The flame-resistant fabric is capable of being formed into a flame-resistant, insulated shelter for use in extreme weather.