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298results about How to "Robust design" patented technology

Interferometric sensor for characterizing materials

An integrated optical sensor, using low coherence interferometry, is capable of determining analyte concentration in a material sample based on absorption, scattering and polarization. The sensor includes one or more light collectors, with each collector having a separation distance from the region where the sample is illuminated by the source. The light backscattered from the sample is combined with reference arm light at the same optical path length for each light collector. The intensity of interference may be correlated with the concentration of an analyte in the material, for example the glucose concentration in a turbid medium like skin. The sensor operation can be based on fiber optics technology, integrated optics, or a combination of these. The operation is such that the spectrally resolved scattering and absorption coefficients can be measured simultaneously. In addition, the operation of the sensor can be synchronized with other sensors, for example temperature, pressure, or heartrate.
Owner:UNIV OF CENT FLORIDA

Wide-area wireless network topology

A wireless communications network topology and its implementation enable the wireless network implementing the topology to be sufficiently robust to avoid or mitigate the consequences of various node failures. The inventive network topology includes a triangular ring mesh, preferably constituting a flower topology in its entirety. For each node in a given layer of stations, at least two links are provided, one to each of two selected nodes in an adjacent layer of stations.
Owner:CHAN MICHAEL TIN YAU

Light efficient packaging configurations for LED lamps using high refractive index encapsulants

Light efficient packaging configurations for LED lamps using high refractive index encapsulants. The packaging configurations including dome (bullet) shaped LED's, SMD (surface mount device) LED's and a hybrid LED type, including a dome mounted within a SMD package. In another embodiment used with SMD LED devices a relatively small semi-hemispherical “blob” of HRI encapsulant surrounds the LED chip with the remainder of the SMD cavity filled with conventional encapsulant. The packaging configurations increase the LED's light emission efficiency at a reasonable cost and in a commercially viable manner, by maximizing the light efficiency while minimizing the amount of high refractive index encapsulant used.
Owner:TASKAR NIKHIL R +3

Array Antenna for Measurement-While-Drilling

An electromagnetic antenna for Measurement-While-Drilling (MWD) applications is disclosed. The antenna can include several array elements that can act alone or together in various measurement modes. The antenna elements can be disposed in tool body recesses to be protected from damage. The antenna elements can include a ferrite plate crossed or looped by independent current carrying conductors in two or more directions forming a bi-directional or crossed magnetic dipole. Although disclosed as a MWD system conveyed by a drill string, basic concepts of the system are applicable to other types of borehole conveyance.
Owner:WEATHERFORD TECH HLDG LLC

Optical Sensor For Extreme Environments

InactiveUS20080297808A1Low costGreat spatial coherenceInterferometersUsing optical meansLight beamOptical sensing
An optical sensing probe includes a tube having a tip portion configured for placement in an environment in which conditions are to be sensed and an etalon having a known characteristic disposed proximate the tip portion. The tube also includes a head portion remote from the tip portion containing a light directing element for directing light beams at the etalon and receiving reflected light beams from the etalon wherein the received reflected light beams are used for determining an environmental condition proximate the tip portion. A method for measuring a thickness of the etalon may include directing a light beams at different frequencies at the etalon and receiving the light beams from the etalon. The method may also include identifying conditions of the respective light beams condition received from the etalon and then calculating a first thickness of the etalon responsive to the respective conditions and the known characteristic.
Owner:NUSENSORS +2

Flow sensor component

A flow sensor component consists of a diaphragm of monocrystalline silicon, the diaphragm having arranged therein filled slots which are filled with a thermally insulating material and which penetrate the diaphragm from a first main surface to a second main surface thereof. The filled slots defining at least one heating area of the diaphragm provided with at least one heating element and at least one detection area of the diaphragm provided with at least one temperature detection element, the filled slots thermally insulating the heating area and the detection area from one another and surrounding the heating area and the detection area completely.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV

Compact and adjustable LED lighting apparatus, and method and system for operating such long-term

A lighting system is provided whereby long operating life can be reasonably ensured by taking into account requirements of the application, characteristics of the LEDs, characteristics of the fixture containing said LEDs, the desired number of operating hours, and—via developed relationships—taking an iterative approach to supplying power to the LEDs. Through the envisioned compensation methodology and effective luminaire design, a relatively constant light level can be assured for a predetermined number of operating hours (possibly longer); this is true even if operating conditions change, known behavior of LEDs proves untrue over untested period of time, or some other condition occurs which would otherwise cause end-of-life prematurely and prevent the system from meeting the desired number of operating hours.
Owner:MUSCO

Rotary switchable multi-core element permanent magnet-based apparatus

A method for creating and a device for a rotary switchable multi-core element, permanent magnet-based apparatus, for holding or lifting a target, comprised of two or more carrier platters, each containing a plurality of complementary first and second core elements. Each core element comprises permanent magnet(s) with magnetically matched soft steel pole conduits attached to the north and south poles of the magnet(s). Core elements are oriented within adjacent carrier platters such that relative rotation allows for alignment in-phase or out-of-phase of the magnetic north and south fields within the pole conduits. Aligning a first core element “in-phase” with a second core element, that is, north-north / south-south, activates that core element pair, allowing the combined magnetic fields of the pole conduits to be directed into a target. Aligning the core element pair “out-of-phase,” that is, north-south / south-north, deactivates that core element pair by containing opposing fields within the pole conduits.
Owner:CREATIVE ENG SOLUTIONS

In-Ceiling Zone Cabling Enclosure

ActiveUS20100000758A1Proper air flowRobust structural designInstallation of lighting conductorsCouplings bases/casesDevices fixationEngineering
An in-ceiling cabling enclosure for supporting communications network equipment and cables interconnecting the network equipment including a front wall a rear wall and two side walls extending between the front wall and the rear wall creating a volume inside the enclosure. An access door assembly is pivotally connected to either the rear wall or the two side walls. The access door assembly pivots through an arc of ninety degrees between a first position opening the enclosure and a second position closing the enclosure. An equipment mount plate is attached to an interior portion of the access door assembly, and opposed equipment mount rails are removably attached to the equipment mount plate. The equipment mount rails are adapted to receive the network equipment and to secure the network equipment to the access door assembly. A cable slack management tray extends between the opposed equipment mount rails, and the slack management tray has a surface adapted to support and maintain the position and the contour of cable bundles located in the enclosure. A thermal management system is also disposed in the housing to provide efficient exhaust of hot air generated by active equipment in the enclosure to the space outside of the enclosure.
Owner:PANDUIT

Energy system

An energy system is specified, which comprises a wind power turbine or water power turbine, which is connected to a generator, with the generator having at least two stator windings. In order to achieve a simple and robust design without a transformer, each stator winding has an associated rectifier unit, and each stator winding is connected to the AC voltage side of the associated rectifier unit. Furthermore, each rectifier unit has a respective associated energy storage circuit, and each rectifier unit is connected in parallel on the DC voltage side to the associated energy storage circuit, with the energy storage circuits being connected to one another in series.
Owner:ABB (SCHWEIZ) AG

Ultrasound device for treatment of intervertebral disc

An ultrasound device and method for the treatment of intervertebral disc tissue for remediation of back pain. An applicator comprises a catheter and / or needle with a distal tip including one or more ultrasound transducer crystals. The crystals produce high-powered ultrasound energy that is transmitted and absorbed in the disc tissue. The resulting temperature elevation of the disc tissue shrinks the collagen fibers in the surrounding tissue, and / or destroying small nerves that may have invaded and innervated the surrounding degenerated tissue, and can provide increased structural integrity and disc support for the fragmented nucleus pulposus to relieve pressure on the spinal nerves.
Owner:ACOUSTIC MEDSYST

Fiber optic cable and method of manufacturing the same

A fiber optic cable is that includes at least one optical fiber and a protective layer generally disposed about the optical fiber. A cable jacket surrounds an outer surface of the protective layer, and a control layer is interposed between a portion of the protective layer and a portion of the cable jacket. The control layer includes one or more apertures extending therethrough, thereby creating a predetermined bond between the protective layer and the cable jacket. By way of example, the protective layer is an armor layer, buffer tube, or other suitable cable component where a predetermined bond to the cable jacket is desired so the craft can easily remove a portion of the cable jacket. The plurality of apertures can have any suitable size, shape, and / or arrangement for influencing the desired bond strength. A method of manufacturing the fiber optic cable is also disclosed.
Owner:CORNING CABLE SYST LLC

Self-propelled vehicle for movement within a tubular member

A self-propelled vehicle (20) for movement within a tubular member (22) includes propulsion mechanisms (28) distributed about a core element (24). Each of the propulsion mechanisms (28) includes a drive belt (28). A first pulley (34), a second pulley (36), and a mid-roller assembly (38) are encompassed by and engage the drive belt (28). The mid-roller assembly (38) is spring-loaded for providing an outwardly-directed force (40) to an underlying portion (42) of the drive belt (28) to press the drive belt (28) against an inner wall (44) of the tubular member (22). A motor arrangement (46), in communication with the propulsion mechanisms (28), actuates one of the first and second pulleys (34, 36) to rotate the drive belt (28) in contact with the inner wall (44) of the tubular member (22) thereby moving the vehicle (20) within the tubular member (22).
Owner:ARIZONA PUBLIC SERVICE

Battery employing an electrode pellet having an inner electrode embedded therein

InactiveUS20040258982A1Easy to integrateNot adversely affect performance characteristicElectrode carriers/collectorsActive material electrodesInterior spaceEngineering
An electrochemical battery cell comprising a cell housing defining an inner space, a first terminal and a second terminal; and at least one pre-formed pellet disposed within the inner space of the cell housing. The pellet includes an outer electrode portion formed from a material to geometrically define the pellet in a solid form. The outer electrode portion is in electrical communication with the first terminal of the cell housing. The pellet also includes an inner electrode encapsulated by a separator and embedded within the material of the outer electrode portion. The inner electrode is in electrical communication with the second terminal of the cell housing and electrically insulated from the outer electrode material. In a preferred embodiment, the inner electrode comprises an anode and the outer electrode portion comprises a cathode portion. The integrated anode / cathode pellet configuration facilitates lowers costs, a more robust design and ease of manufacturability while maintaining and allowing increased performance characteristics of the battery cell.
Owner:RECHARGEABLE BATTERY CORP

Umbrella semi-trailer drag reducer

InactiveUS7740304B1Degraded aerodynamic performanceChance of damageVehicle seatsWindowsAerodynamic dragRoad surface
The Umbrella Semi-Trailer Drag Reducer is a device that reduces tractor-trailer aerodynamic drag, saving energy and reducing fuel consumption. The design includes a number of features similar to an umbrella, including flexible skin, metal ribs, quick-acting deployment, and compact stowage. The Umbrella Semi-Trailer Drag Reducer is designed to minimize installed cost, be robust and vandal resistant, and reduce the time needed for deployment to only a few seconds. The design includes two independent, paraboloid, mirrored halves, one mounted to each door. The bottom of each mirrored half is open, with a profile similar to one quadrant of an umbrella. Wide-throw hinges accommodate the collapsed stowed drag reducer. Turnbuckles maintain taught skin. The design allows easy retrofit for most existing semi-trailers. The drag reducer is mounted high above the road surface, with no part protruding beyond the top or sides of the semi-trailer.
Owner:BREU THOMAS JAMES

Fire resistant and/or water resistant enclosure for operable computer digital data storage device

A fire and / or water resistant enclosure is provided for housing an operable digital data storage device. The enclosure is a low cost, preferably molded gypsum enclosure having various embodiments for providing resistance to fire occurring outside said enclosure and / or to water. In one embodiment, a fan cooperates with one or more hatchless ventilation passageways to cool the digital data storage device. Passageways in the gypsum walls are sized to be sufficiently small to limit the transfer of heat through those passages sufficiently to prevent damage to the data storage device and to prevent loss of data stored thereon. Another embodiment provides a water resistant pouch surrounding the data storage device which may be made of flexible foil or of finned relatively robust and non-flexible thermal conductor. The enclosure in some embodiments utilizes a fan and in some embodiments operates without a fan. Similarly, the enclosure in some embodiments utilizes movable hatches and in other embodiments is hatchless in design.
Owner:CRU ACQUISITION GROUP

Multi-stage modular rotary internal combustion engine

A three-stage internal combustion rotary engine, comprised of: a compressor feeding compressed air to a combustor for compression, fuel injection, combustion, and expansion of gases which rotate the rotor. The combustor rotor generates torque and drives the compressor and afterburner rotors simultaneously. The afterburner receives the combusted gases and scavenged air from the combustor for secondary combustion and expels the exhaust gases. Each unit consists of a housing joined together on a common axis and a rotor with a shaft mounted in an eccentric position of the housing side-walls. The shafts are interconnected by splines. The rotors have radial blind slots which contain slidable, movable vanes fitted with half-round knobs on opposite sides, aligned with the top surface and fit in the hemispherical grooves on the interior side-walls of the housing. This maintains a permanent contact with the interior housing periphery, regardless of gas pressures and rotating speed.
Owner:HORSTIN ABRAHAM H

Fastener

A tree-type fastener includes one or more fin stabilizer bases disposed on a shaft of the fastener. When the fastener is subjected to a pull-out force, the fins may be prevented from stacking up, buckling or bending by the fin stabilizer base. The stabilizer base is configured to provide no interference with a work piece when inserted in a work piece aperture. The fastener of the invention provides a high removal force to insertion force ratio and a strong, single piece device. The fastener may also be adapted for modification of new and existing tree-type fasteners.
Owner:ILLINOIS TOOL WORKS INC

Method and system for providing automatic gate bias and bias sequencing for field effect transistors

A feedback gate bias circuit for use in radio frequency amplifiers to more effectively control operation of LDFET, GaNFET, GaAsFET, and JFET type transistors used in such circuits. A transistor gate bias circuit that senses drain current and automatically adjusts or biases the gate voltage to maintain drain current independently of temperature, time, input drive, frequency, as well as from device to device variations. Additional circuits to provide temperature compensation, RF power monitoring and drain current control, RF output power leveler, high power gain block, and optional digital control of various functions. A gate bias circuit including a bias sequencer and negative voltage deriver for operation of N-channel depletion mode devices.
Owner:EMHISER RES

In-ceiling zone cabling enclosure

An in-ceiling cabling enclosure for supporting communications network equipment and cables interconnecting the network equipment including a front wall, a rear wall, and two side walls extending between the front wall and the rear wall creating a volume inside the enclosure. An access door assembly is pivotally connected to either the rear wall or the two side walls. An equipment mount plate is attached to an interior portion of the access door assembly, and opposed equipment mount rails are removably attached to the equipment mount plate. A cable slack management tray extends between the opposed equipment mount rails, and the slack management tray has a surface adapted to support and maintain the position and the contour of cable bundles located in the enclosure. A thermal management system is also disposed in the housing to provide efficient exhaust of hot air generated by active equipment in the enclosure to the space outside of the enclosure.
Owner:PANDUIT

Self-expansible stent with radiopaque markers and method of making such a stent

ActiveUS20100191321A1Increase awarenessHigh degree of elasticityStentsBlood vesselsInsertion stentHigh stress
Pushing a self-expanding stent from one of its ends, during release of the stent at a stenting site in a bodily lumen, by proximal withdrawal of a surrounding sheath, can impose unacceptably high stresses on parts of the strut network of the stent. For location of stents in a bodily lumen, it is customary to equip the end annulus of a stent with radiopaque markers. The present invention involves arranging the markers so that they share with non-marker portions of the end annulus the stresses imposed in the stent by the end pushing, whereby the high stresses are shared more equally by all the struts of the stent in the end annulus.
Owner:CR BARD INC
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