Abstract: An active headworn device that includes a position sensing device used to determine whether the headworn device is in an extended state upon a user's head or in a contracted state off of the user's head. The position sensing device may be coupled with a microcontroller adapted to power up or power down the active headworn device based on a signal from the position sensing device. The position sensing device may various devices such as a Hall-effect device used in combination with a magnet or a LED in combination with a detector. The movement of the headworn device between positions changes the distance between components of the position sensing device such that the device signals the microcontroller to power up or down the active headworn device. The microcontroller may mute a portion of circuitry prior to the powering up or down the active headworn device to prevent undesirable feedback.

Abstract: A firearm security device including a surface mountable frame to which a first plate and a second movable plate are attached. A grip pad is attached to each of the opposing inner sides of the fixed and movable plates. A trigger guard stud is attached to and projects from the inner face of the fixed plate. The movable second plate is movable with respect to the first plate from an open position wherein a firearm is positioned with the trigger guard stud projecting through the trigger guard of the firearm, to a closed position where the movable plate is positioned substantially parallel to the fixed plate and at least a portion of the receiver of the firearm is held in a compressive grip between the grip pads. A lock selectively restricts movement of the second movable plate.

Abstract: A tubing hanger for use in a wellhead. The wellhead includes a throughbore, a landing seat positioned in the throughbore, a landing groove positioned above the landing seat in the throughbore, and a locking groove in the throughbore. The tubing hanger comprises an expandable landing ring positioned on the tubing hanger for engaging the landing groove and a landing mechanism for expanding the landing ring radially outward from the tubing hanger. A locking ring for engaging the locking groove can be positioned on the tubing hanger. The tubing hanger can further include a locking mechanism for expanding the locking ring radially outward from the tubing hanger body and locking it into the locking groove.

Abstract: The application discloses a safety valve including a flapper valve and a packer assembly to be installed in a bore to isolate a first zone from a second zone. Preferably, the safety valve includes a hydraulic conduit bypassing the flapper valve to allow communication therethrough when the valve is closed. Furthermore, the safety valve preferably allows unobstructed passage of tools and fluids therethrough when the flapper valve is open. The application discloses a method to install a safety valve in an existing string of tubing by deploying a packer assembly having an integral safety valve.

Abstract: A railroad car may comprise a frame comprising a first side and a second side laterally opposing each other. The railroad car may further comprise a first elastomeric mat and a second elastomeric mat supported by a plurality of reinforcement cables, the first and second elastomeric mats forming a load-carrying receptacle. Each elastomeric mat may have an outer edge and an inner edge, the inner edge of the first elastomeric mat abutting the inner edge of the second elastomeric mat when the load-carrying receptacle is in a closed configuration. The railroad car may further comprise a first pulley connected to the first side of the frame and a second pulley connected to the second side of the frame, the first pulley and second pulley each having a respective axis of rotation parallel to a direction of travel of the railroad car.

Abstract: An automated method is provided for restoring software applications installed on a desktop computer. Information identifying an inventory of software applications resident on the computer is stored locally in a file on the computer. In response to a request to restore applications, the inventory is compared to a master library of known software applications, and those applications in the inventory that are found in the library are selected and downloaded onto the computer to complete the restoration process.

Abstract: A flight data service subscription system allows personnel to subscribe to flight data services using an electronic devices such as a multifunctional display (MFD) onboard an aircraft. The MFD is used to select regional areas of coverage and generate requests for subscriptions to flight data services. Flight data application software running on the MFD manages flight data and the subscription requests. A server operated by a flight data service provider receives the subscription requests from the MFD and dispatches flight data responsive to the requests for the selected region. A wireless local area network on the ground transfers flight data and subscription requests between the MFD and the flight data subscription server.

Abstract: The present disclosure is directed to a wellbore injection system. The wellbore injection system comprises a capillary fluid flow path positioned in a subsurface wellbore so as to allow fluid communication through the wellbore, the wellbore having a wellbore pressure. A receptacle is in fluid communication with a second fluid flow path that is positioned below the capillary fluid flow path in the wellbore. An injector is attached to a distal end of the capillary fluid flow path, the injector comprising an injector flow path. The injector is capable of being removably attached to the receptacle to provide fluid communication between the capillary fluid flow path and the second fluid flow path through the injector flow path. An isolation mechanism is capable of isolating the capillary fluid flow path from the wellbore pressure when the injector is not attached to the receptacle.

Abstract: A method for accessing an enhanced command set includes utilizing a generic command set to obtain identifying data from a data exchanger in communication with a router device. The generic command set is utilized to cause the data exchanger to establish a remote link between with a data service provider. A remote enhanced command set associated with the identifying data is obtained via the established remote link. The obtained enhanced command set is utilized to access a feature of the data exchanger not available utilizing the generic command set.

Abstract: A blade handling apparatus includes a mount frame; a stinger boom carried by the mount frame; and a lift block assembly including a lift block carried by the stinger boom; a pair of rod housings carried by the lift block; a pair of push rods slidably carried by the pair of rod housings, respectively; and a pair of blade lock pins carried by the pair of rod housings, respectively, and engaged by the pair of push rods, respectively.

Abstract: A solar energy harvesting apparatus is disclosed. An illustrative embodiment of the apparatus includes a generally elongated, rectangular body having a bottom portion and sidewalls extending from the bottom portion; at least one trough provided in the bottom portion and having a trough base and trough peaks; at least one mirror strip provided along at least one peak of the at least one trough; and a linear solar cell provided along the trough base of the at least one trough.

Abstract: An integrated floor for an aircraft fuselage includes a composite panel forming a floor surface and composite beams bonded to the floor panel. The beams extend longitudinally within the fuselage and support the floor.

Abstract: A variable buoyancy subsea running tool for use with subsea transportable devices, such as a tree cap. The buoyancy of the running tool may be varied through fluid or gas displacement in one or more containers. Alternatively, the running tool may be configured with a buoy that has static buoyancy, with the buoyancy of the running tool being varied through the addition of a counterweight. The running tool can be used to install or uninstall a tree cap on a subsea tree. Installation of a tree cap may be actuated by a remotely operated vehicle. Additionally, the running tool may be moved by a remotely operated vehicle and may have additional features such as a position locator device.

Abstract: The invention relates to the use of chalcogenide devices exhibiting negative differential resistance in integrated circuits as programmable variable resistor components. The present invention is a continuously variable integrated analog resistor made of a chalcogenide material, such as a GeSeAg alloy. Continuously variable resistor states are obtained in the material via application of an electrical pulse to it. The pulse sequence, duration and applied potential determine the value of the resistance state obtained.

Abstract: A formable RFID tag includes a tag inlay including a composite polymer material having a pliant and flexible pre-cured state and a hardened cured state, non-rigid RFID circuitry embedded in the tag inlay and a non-rigid RFID antenna embedded in the tag inlay and interfacing with the RFID circuitry.

Abstract: An internal tree cap having a running configuration and a latched configuration to be selectively secured to a tree spool. The tree cap may include an inner sleeve movable between upper and lower positions. The movement of the inner sleeve to the lower position may simultaneously engage a locking profile within the tree spool and energize a sealing element around the exterior of the tree cap. The tree cap may be a low profile tree cap that is flush with the top of the tree spool when installed. The tree cap may provide a collateral beneficial locking means to secure a tubing hanger within the tree spool. A lower housing may be attached to the tree cap to seal on the exterior of the upper neck of the tubing hanger. The tree cap may include a profile to accept a wireline plug.

Abstract: An electrically dimmable window (“EDW”) system comprising an EDW, a control switch, and a controller. The switch and controller control the light transmittance level of the EDW. State indicators indicate when the EDW is in transition from one light transmittance level to another level. When there is no transition in light transmittance level, the indicators may denote the current light transmittance level of the EDW.

Abstract: An illustrative embodiment of a temperature-activated voltage generator includes a generator housing having a housing interior; a flexible, temperature-sensitive bimetallic element disposed in the housing interior; and a piezoelectric element carried by the generator housing. The bimetallic element is positional between a first position wherein the bimetallic element disengages the piezoelectric element and a second position wherein the bimetallic element engages the piezoelectric element. Electrical voltage output leads are electrically connected to the piezoelectric element. A voltage-generating method is also disclosed.

Abstract: A method determines the concentration of a substance in a subject's blood. The method includes noninvasively irradiating an eye with a measurement light beam having a first wavelength and a first power and with a reference light beam having a second wavelength and a second power. The second wavelength is different from the first wavelength. The method further includes measuring at least one of a body temperature of the subject and an ambient temperature of the subject. The method further includes detecting a power of the measurement retro-reflected light beam and detecting a power of the reference retro-reflected light beam. The method further includes calculating a measurement ratio of the detected power of the measurement retro-reflected light beam and the first power and calculating a reference ratio of the detected power of the reference retro-reflected light beam and the second power.

Abstract: A bottom hole assembly connected to coiled tubing to create an acid tunnel in a wellbore formation. High pressure acid is pumped down the coiled tubing and out a nozzle located at the end of the bottom hole assembly. The bottom hole assembly includes a first reversible knuckle joint and a second reversible knuckle joint to properly position the nozzle against the wellbore and to allow the assembly to adjust its angle as it initiates and moves through the lateral tunnel. The two reversible knuckle joints increases the radius of curvature of the bottom hole assembly while providing a sufficient attack angle for the nozzle against the wellbore. The two knuckle joints may be adjusted in response to loads applied on the assembly as the assembly moves through the lateral tunnel.