Abstract: A method and a HIP can structure for hot isostatically pressed (HIP) production of flat sheet metal matrix composites having a dimension greater than about 4.times.5 inches. The HIP can is constructed so that most of the expensive components are reusable for further processing of other composites. The side walls of the HIP can have reduced thickness relative to the top and bottom walls and the can has a reinforced centerpiece between the two composites used in the example. Molybdenum foils are utilized to separate the composites from the stiffening structure so that when the HIP can is opened by breaking the weld at one of its wings, the components of the can and the composites come apart so that the most expensive structural members of the HIP can be reused.

Abstract: A method for vibration damping cylindrical members is described which comprises applying constrained damping treatment, in the form of narrow strips of damping tape, to the surface of the member in a helical (barberpole) configuration at a selected pitch angle to a generator line of the member, the tape being either continuous (unsegmented) or segmented at selected optimal length.

Abstract: A lure including a connector member to be attached to a fishing line, and a fish-luring member provided on the connector member. The connector member has a portion made of a shape memory alloy which may exhibit superelasticity.

Abstract: This invention is a support spring made of a material, such as aluminum, that is damped by friction forces to directly support a sapphire dielectric resonator operating from a cold finger at cryogenic temperatures in a spring-mounted enclosure to reduce a phase-noise vibration sensitivity of the sapphire dielectric resonator. The support spring provides vibration isolation in al three directions, along with good thermal conductivity to aid in resonator cool-down. A damper clamp and damper clips provide the friction forces necessary for damping which prevents large vibration transmission peaks in a hostile, low-temperature, high-vacuum environment.

Abstract: The scroll saw disclosed herein includes a frame with a worktable for supporting workpieces, first and second blade clamps for clamping a blade therebetween, an oscillating mechanism disposed within the frame, the oscillating mechanism moving the first and second blade clamps in a direction along a substantially vertical axis, wherein one of the first and second blade clamps is selectively shiftable so that the blade is shifted to a selected angle from the vertical axis. Preferably, a cam is used to move one of the blade clamps.

Abstract: A method of and apparatus for controlling the potential of a plasma including a metal-walled chamber and a conductive coil which carries a radio-frequency current and is wrapped around the metal-walled chamber to produce a plasma within the chamber. A filament made of refractory metal has two ends, and a central portion formed in the shape of a probe. The central portion of the filament extends into the interior of the chamber and the two ends of the filament pass through a wall of the chamber to the exterior of the chamber. A heating power supply is connected to the two ends to the filament and to the chamber wall for heating the filament to a predetermined temperature above that of the plasma. The heated filament produces thermionic emissions from the filament to the plasma in order to control the plasma potential and eliminate unipolar arcing at the chamber wall.

Abstract: Today's engines are pushed to operate at higher temperatures, higher peak cylinder pressures, in more corrosive environments and with highly variable fuel types and qualities. A solution to guttering is an oxidation and corrosion-resistant coating with a general turn MCrAlY applied to the face of the engine valve train components by thermal spray coating.

Abstract: A tire wheel, is described, which comprises a tire shell having bead parts, a rim on which the tire shell is supported with the bead parts being pressed against the rim, and a filling material with which the ring-form inner space surrounded by the rim and the tire shell is filled, said filling material having an apparent specific gravity of from 0.08 to 0.3 and an impact resilience of from 50 to 80 (as determined by JIS K-6301) in a free state, consisting of an elastic foam containing butyl rubber or a halogenated butyl rubber and having a closed-cell structure with a water absorption as determined by the water absorption test prescribed in ASTM D1056 of 5% or lower, and being in a compressed state.

Abstract: A curable rubber compound having enhanced tack and rubber articles and components, such as tires and treads, made therefrom. Compounds of the invention do not contain wax in an amount that is in excess of the wax's solubility in the rubber. Treads made from compounds of the invention generally do not require cement to secure their splices. Compounds of the invention typically include a formulated fatty acid or alkylated aromatic or phenolic resin, carbon black, natural and/or synthetic rubber, paraffinic or naphthenic oils, and a curing agent. Compounds of the invention have a tack of at least about 3 Newtons. Rubber compounds of the invention, and rubber components made therefrom, can be protected from ozone attack and oxidation by coating an outer surface of the compound and/or component with wax. Treads protected using these methods should have the wax applied to their outer surface subsequent to securing any tread splice.

Abstract: A method for fabricating a fiber reinforced composite bridge module is described which in one preferred embodiment includes the steps of selecting a cross-sectional shape for the bridge module defined by an outer substantially tubular shell having a top side and a bottom side, and a floor deck near the bottom side and at least one keel beam beneath the floor deck and extending lengthwise of the outer shell, the outer shell, floor deck and keel beams defining a plurality of passageways along the length of the module, winding fiber and impregnating material on mandrels in a plurality tubular sections defining the plurality of passageways, joining the plurality of tubular sections in side-by-side relationship in an assembly substantially defining in cross section the cross-sectional shape of the module, winding fiber and impregnating material around the assembly to a preselected thickness for the outer shell; and curing the fiber and impregnating material.

Abstract: An optoelectronic device comprises a detector, an emitter and a modulator corporated into a single semiconductor chip. The optoelectronic device provides electrical isolation and optical interconnection (via waveguides) of the components of the semiconductor chip. Contacts for providing forward and reverse bias voltages are included in the device. The optoelectronic device is fabricated by growing a strained-layer quantum diode structure to produce a piezoelectric field in a quantum well, electrically isolating portions of the structure, and optically interconnecting portions of the structure. The fabrication is carried out by using an implant process or an etching process, and without having to use either regrowth techniques or packaging together of multiple optical elements.

Abstract: A chair is provided that is specifically designed for use in a clean room environment by limiting the emission of particles by the chair as clean room personnel alternately sit down and stand up. The chair includes a base and a seat member operably mounted upon the base. The seat member, in turn, includes a cushion and a shell encapsulating the cushion. The shell is comprised of polytetrafluoroethylene (PTFE). By encapsulating the cushion, such as a foam rubber cushion, in a PTFE shell, the chair limits emission of particles by the cushion.

Abstract: An electroacoustic transducer comprises a pair of active piezo electric membranes and a sleeve closed at its ends by the membranes to a form an enclosed rear volume of air. A case accomodates the assembly of sleeve and membranes and provides an enclosed front volume of air between its inner wall and the assembly. An opening in the case to the outside forms a sound pressure output. Each membrane comprises a sandwich of two active piezo layers on a substrate material. Very small thicknesses of the substrate and active piezo layers provides for a correct impedance match to the acoustic load in the ear when used in hearing aids.

Abstract: Light sources include an electrodeless bulb having an interior, a fill contained within the interior of the bulb, an excitation structure that transmits electromagnetic energy to the fill in the bulb, and cooling fins extending radically outward from the bulb. The fill is excited by the electromagnetic energy to a plasma state that causes light emission and generates heat energy. The cooling fins, when rotated, draw air toward the bulb to cool the bulb. Alternatively, cooling may be provided by a rotatable squirrel cage about an electrodeless bulb. The light sources can be used in display systems, such as field sequential color systems.

Abstract: A multi-octave bandwidth antenna is disclosed which radiates with variable polarizations using: a metal ground plane, first and second blade antenna elements, first and second coaxial transmission line feeds, and a 180.degree. hybrid coupler. The two blade antenna elements are fixed above the metal ground plane in proximity with each other, and fed respectively by the central conductors of the first and second coaxial transmission line feeds. The 180.degree. hybrid coupler has a sum and difference port to control the polarization of waveforms of the antenna.

Abstract: The automated charting system of the present invention comprises a computer program for inputting current position from the Global Positioning Syst accessing the Digital Nautical Chart database (DNC), selecting the best available nautical chart data for the current position, and displaying the current position on the selected nautical chart.

Abstract: A cable television system (100) includes a head end section (105) for generating a cable signal; a communication medium (110, 117), such as fiber optic cable and coaxial cable, coupled to the head end section (105) for routing the cable signal through the cable television system (100), and cable taps (200) coupled to the communication medium (110, 117) for receiving the cable signal and providing subscriber drops to subscribers of the cable television system (100). As the cable signal is routed through the system (100), the signal levels of the signal decrease, and higher frequencies are attenuated more rapidly than are lower frequencies of the signal. Therefore, taps (200) of the cable television system (100) include equalizer circuits (212) for attenuating lower frequencies of the cable signal to provide relatively flat signal levels at the subscriber drops.

Abstract: A system for processing data is provided. The system includes a data type detector that determines whether a data frame is a speech/voice data frame or a data/fax data frame. The system further includes a transcoder and rate adapter system that is connected to the data type detector. The data type detector transfers the data frame to the transcoder and rate adapter system if the data frame is a voice data frame. An interworking function system is also connected to the data type detector. The data type detector transfers the data frame to the interworking function system if the data frame is a data/fax data frame.

Abstract: A system and method for forming circuit connections within a telecommunications switching platform that uses tables of logical identifiers for resources and information channels being handled by the platform to allow dynamic addressing of components and provide significant flexibility over prior-art systems.

Abstract: A system, and associated methods, for transferring data to redundant components of a telecommunications system is provided. The system includes a synchronization client operating on a component. The system also includes a synchronization server operating on another component. The synchronization client is operable to transfer predetermined data to the synchronization server upon the occurrence of a predetermined condition.

Abstract: A continuous-time multiplier-integrator-multiplier circuit in which the integrator is a transconductance-C circuit. This permits the integrators to have long time constants despite being tightly fabricated on an integrated semiconductor chip. The multipliers can preferably be Gilbert multipliers, to improve circuit frequency response.

Abstract: A system for transferring echo cancellation data is provided. The system includes an echo cancellation element, which has echo cancellation algorithm data that has been determined for a predetermined telecommunications channel. The system also includes another echo cancellation element. An echo cancellation controller module is connected to the echo cancellation element and the other echo cancellation element. The echo cancellation controller module retrieves the echo cancellation algorithm data from the echo cancellation element, and transfers the echo cancellation algorithm data to the other echo cancellation element when a telecommunications channel is transferred from a cell to another cell.

Abstract: An apparatus for processing wireless telecommunications is provided. The apparatus includes an echo canceller module. An echo canceller module controller is connected to the echo canceller module. The echo canceller module controller can receive echo canceller data, and can turn the echo canceller module on when the echo canceller data indicates that echo cancellation is required, such that echo cancellation may be controllably turned on only when it is needed.

Abstract: A transducer is deposited on each fiber of an optical fiber scene projector to convert portions of electromagnetic radiation to emitted radiation, h as IR. The transducer, is adaptable to large arrays of optical fibers and can be fabricated using mature conventional processes, such as vapor deposition, for example. The components of the transducer can be tailored to handle different incident radiation and produce desired emitted radiation. Dielectric layers having thicknesses equal to odd-numbered multiples of quarter wavelengths of the electromagnetic radiation receive the electromagnetic radiation and a reflector adjacent to the layers reflects unabsorbed portions of radiation back through the layers. An absorber layer interposed between adjacent dielectric layers absorbs the received and the reflected radiation so as to convert the absorbed radiation into heat energy.

Abstract: A drill guide for combination lock mounting and method for fabricating and sing the drill guide is provided. The drill guide is fabricated using several interior mounting plates bonded together to form a sufficient thickness to maintain a true level bore hole. The fabrication guide plate is attached to a secure door using a threaded clamping device extending through a lock spindle hole. Thereafter, the smaller interior holes are drilled completely through the door. Larger exterior holes are then drilled partway through the door from the outside. The door is then ready to accept an exterior combination lock plate having female studs extending into the door.

Abstract: A process is provided for coating a given surface of a heat sensitive metal article (e.g., thermally massive aluminum) with a high-cure-temperatureating-forming-powder. A first oven heating step elevates the metal article's temperature to a predetermined preheat cycle high-limit-of-heat-load-temperature. After a first predetermined period of time, the metal alloy article is withdrawn from the oven. A high-cure-temperature-coating-forming-powder is then sprayed onto the given surface of the metal article. The spraying, comprising first and second spray sequences, is initiated essentially immediately after withdrawal of the metal article from the oven. The first spray sequence is a single group of spray passes that applies a coating layer to fill the pores in the given surface with heat melted high-cure-temperature-coating-forming-powder. The second spray sequence builds up the total thickness of coating.

Abstract: A toner comprised of resin, colorant, grinding compound, and wax.

Abstract: This invention involves an improved technique for the modulation of waste an actively controlled compact waste incinerator afterburner. This improved technique utilizes acoustic driving to affect indirect modulation of waste flow velocities. The waste surrogate gases are modulated indirectly by periodic entrainment created by the roll-up of the main air vortex as well as indirect acoustic excitation of secondary air injection. One of the main advantages of this new configuration is the acoustic drivers used to phase inject the waste into the vortex for proper combustion are not in direct contact with the hot waste and therefore can be less expensive and more durable over the long term.

Abstract: A new apparatus for displaying and recording an image viewed by a marksman or shooter through a weapon sight is described. A beam splitter is mounted at the eye end of the weapon sight and bends part of the image intended for the shooter 900.degree. to a righting prism which bends the image another 900.degree., for a total of 180.degree.. The image from the righting prism is directed to the input of a miniature video camera mounted over and parallel with the weapon sight. The video camera transmits the image to a remote miniature video display and to a remote video recorder. By bending the image a total of 180.degree., the video camera can be mounted in a low profile position over the weapon sight such that the overall balance of the weapon is minimally upset.

Abstract: This invention describes how to make and use several effective high volume screens for the discovery of inhibitors of specific protein:protein interactions, using aspects of the yeast two-hybrid system.

Abstract: An enzymatic reduction method, particularly a stereoselective enzymatic reduction method, for the preparation of halohydrins from haloketones. The halohydrin products are particularly useful in the preparation of epoxides, which may be employed as intermediates in the preparation of protease inhibitors such as retroviral protease inhibitors.

Abstract: A flexible architecture for a telecommunications system is disclosed herein. Such architecture provides for different software layers, which include one or more software entities, based on a logical grouping of like or similar functions. For example, a call processing software layer, a resource software layer and a network management software layer may be provided to carry out particular operations. Further, the network management software layer may be divided into a client layer, which presents operations, administration and maintenance related information to a user for adaptation by the user, and a server layer, which stores and accesses operations, administration and maintenance related information. Object request broker technology is utilized to allow a software entity of one software layer to invoke operations associated with another software entity provided by another software layer.

Abstract: In one aspect of the present invention, an application provider, such as a mobile application part provider (52), is provided that includes a table (210), a router (200) and a message converter (220). The table (210) stores information corresponding to a sub-system, such as a visitor location register (46) or a home location register (44), of a first node, such as an integrated wireless telecommunications switch (14). The router (200) analyzes an application part message, such as a mobile application part message, that originated from the first node and compares the information stored in the table to the destination of the application part message to determine if the application part message is destined for the sub-system of the first node. The router (200) communicates the application part message to the first node if the application part message is destined for the sub-system of the first node.