Abstract: One wire woven stent, created around pins and grooved channels and laser welded at the ends, according to the patterns whereby said pattern can be started at any pins and continued, with improved performance and access to tortuous vessels.

Abstract: Fire- and electromagnetic interference (EMI)-resistant aircraft components and methods for manufacturing the same are provided. A fire-and EMI-resistant aircraft component includes an article comprised of a polymeric material. A fire-retardant material layer overlies the article. A thermally and electrically conductive coating material layer is disposed intermediate the article and the fire-retardant material layer. Optionally, at least one continuous electrically conductive element is integrated with the polymeric material of the article.

Abstract: Fire- and electromagnetic interference (EMI)-resistant aircraft components and methods for manufacturing the same are provided. A thermally and electrically conductive coating material layer is formed on at least a portion of an intermediate article comprised of a non-metallic material. The thermally and electrically conductive coating material layer is comprised of a metal. A fire-retardant material layer is cold sprayed on the thermally and electrically conductive coating material layer. At least one continuous electrically conductive element may be integrated with the non-metallic material of the intermediate article.

Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.

Abstract: Fire- and electromagnetic interference (EMI)-resistant aircraft components and methods for manufacturing the same are provided. A thermally and electrically conductive coating material layer is formed on at least a portion of an intermediate article comprised of a non-metallic material. The thermally and electrically conductive coating material layer is comprised of a metal. A fire-retardant material layer is cold sprayed on the thermally and electrically conductive coating material layer. At least one continuous electrically conductive element may be integrated with the non-metallic material of the intermediate article.

Abstract: Methods are provided for structurally repairing a component having a damaged internally threaded opening. The damaged internally threaded opening is machined to a predetermined diameter, thereby forming a machined opening. At least one notch is formed in the machined opening, thereby forming a notched opening. A selected amount of repair material is cold sprayed into the notched opening, including into the at least one notch. A plurality of internal threads is formed from the repair material to form a repaired internally threaded opening in the component. The repaired components are also provided.

Abstract: Methods are provided for structurally repairing a component having a damaged internally threaded opening. The damaged internally threaded opening is machined to a predetermined diameter, thereby forming a machined opening. At least one notch is formed in the machined opening, thereby forming a notched opening. A selected amount of repair material is cold sprayed into the notched opening, including into the at least one notch. A plurality of internal threads is formed from the repair material to form a repaired internally threaded opening in the component. The repaired components are also provided.

Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.

Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.

Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.

Abstract: Apparatus and methods are provided to detect and control a voltage potential applied in a plasma chamber for processing a semiconductor wafer. The plasma chamber includes circuitry for monitoring and adjusting a pulsed RF bias voltage signal to be applied to a chuck in the plasma chamber, where the chuck is configured to mount the wafer for processing. The circuitry includes an RF bias voltage detector for detecting individual pulses of the pulsed RF bias voltage signal applied to the chuck. A timing circuit is provided for determining a time for sampling each of the individual detected pulses and a sample and hold circuit.

Abstract: Apparatus and methods are provided to detect and control a voltage potential applied in a plasma chamber for processing a semiconductor wafer. The plasma chamber includes circuitry for monitoring and adjusting a pulsed RF bias voltage signal to be applied to a chuck in the plasma chamber, where the chuck is configured to mount the wafer for processing. The circuitry includes an RF bias voltage detector for detecting individual pulses of the pulsed RF bias voltage signal applied to the chuck. A timing circuit is provided for determining a time for sampling each of the individual detected pulses and a sample and hold circuit.

Abstract: A weld inspection device is disclosed. The weld inspection device comprises a first annular engagement portion surrounding a central axis and a second annular engagement portion. The first annular engagement portion has a first holed segment extending circumferentially around an outer edge of the first annular engagement portion and having a first hole adapted to receive a threaded member and a standoff segment extending in a first direction along the central axis from the first holed segment, the standoff segment having a concavity. The second annular engagement portion surrounds the central axis and has a second holed segment extending circumferentially around the central axis and having a second hole adapted to receive and threadedly engage a threaded member, and a retaining flange extending radially inward toward the central axis.

Abstract: A weld inspection device is disclosed. The weld inspection device comprises a first annular engagement portion surrounding a central axis and a second annular engagement portion. The first annular engagement portion has a first holed segment extending circumferentially around an outer edge of the first annular engagement portion and having a first hole adapted to receive a threaded member and a standoff segment extending in a first direction along the central axis from the first holed segment, the standoff segment having a concavity. The second annular engagement portion surrounds the central axis and has a second holed segment extending circumferentially around the central axis and having a second hole adapted to receive and threadedly engage a threaded member, and a retaining flange extending radially inward toward the central axis.

Abstract: A method is provided for forming a complexly-shaped tubular structure such as a tapered pillar or other structure for a vehicle body. A sheet metal blank having a longitudinal axis is rolled about the longitudinal axis to form a tubular shape and the side edges of the blank are then welded together to form a tube. The tube is then enclosed in a hydroforming die and pressurized to conform the tube to the shape of the die and thereby form the desired complex shape. The sheet metal blank may be formed by the end-to-end welding together of a plurality of separate sheet metal blanks that differ from one another in characteristic including material thickness, material alloy composition, and/or coating. One or more of the blanks can have side edges that are non-parallel so that the tube will taper in diameter along its length.

Abstract: A method is provided for forming a complexly-shaped tubular structure such as a tapered pillar or other structure for a vehicle body. A sheet metal blank having a longitudinal axis is rolled about the longitudinal axis to form a tubular shape and the side edges of the blank are then welded together to form a tube. The tube is then enclosed in a hydroforming die and pressurized to conform the tube to the shape of the die and thereby form the desired complex shape. The sheet metal blank may be formed by the end-to-end welding together of a plurality of separate sheet metal blanks that differ from one another in characteristic including material thickness, material alloy composition, and/or coating. One or more of the blanks can have side edges that are non-parallel so that the tube will taper in diameter along its length.

Abstract: A write head drive circuit for a magnetic data storage device is configured to drive a write head with a write head degaussing current that is applied at the end of a write cycle. The write head degaussing current is an alternating current waveform with a programmable number of current pulses with decreasing amplitude and a frequency controlled by a CMOS ring oscillator. The CMOS ring oscillator includes switchable feedback paths to control its frequency. A programmable timer terminates the write head degaussing current after an interval of time dependent on signals that indicate the programmable number of current pulses and the frequency of the CMOS oscillator.

Abstract: A system for injecting noise signals onto power generated by a power source comprising: a voltage source; a device under test having a power input in operable communication with the noise introduction apparatus; and a noise introduction apparatus interposed between the power source and device under test in operable communication with the voltage source, the noise introduction apparatus comprising, a switching device configured to provide a low impedance conductive path when commanded, and a current limiting device in series with the switching device, the current limiting device configured to provide a low impedance conductivity for a selected current and a selected duration. The switching device and current limiting device cooperate to shunt the voltage source to the power input.

Abstract: A preamplifier device (26) for a thin film transducer disk drive system having operation speeds up to and greater than 2 Gb/s. The device (26) includes a low power/high speed driver (203) having a cascaded Class AB buffer. In at least one embodiment the device (26) includes separated drive devices in the driver (203) and H-bridge circuit (205) realized in multiple smaller devices biased separately to reduce transistor self-heating effects and a further embodiment includes a reference (201) having a base cancellation scheme and a Class AB current source for improving accuracy and stability is such high speed devices.

Abstract: The present invention relates to power input housings and assemblies for power distribution panels. The power input assemblies provide separate cavities with a centerwall for the power input cables to be led into and a cover closing the cavities. The cavities allow power cables to enter through either a top open end or a bottom open end and the cover is adapted to close the other open end when installed. Alternatively, the housing can be oriented with the open ends of the cavities to the sides, permitting cables to enter through either side and the cover closing the other side.