Tech Exchange

Hovering Aerial Vehicles Use Wireless Energy Supplied from Ground

New electrically charged, polarized, proprietary alloys create thrust to lift small aircraft, commonly referred to as Personal Ultralight Vehicles (PAVs), without the need of a propeller, jet, balloon, or rockets. The ion electric air propulsion is considered a clean technology that has none of the carbon emissions or volatile fuels involved with combustion engines. A ground-based broadcast power system and onboard rectenna eliminates the need for onboard power storage and results in more lift range and higher payload.

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Manufacturing Methods to Deposit Inorganic Material Layers on Metal Substrates

A company seeks alternative ways of preparing crucibles for the vapor deposition process. Currently, up to a kilogram of an alkalihalide salt is melted electrically in a tantalum crucible within a vacuum chamber, and the vapor is deposited on a metal substrate. The resistance, conductivity, and heating patterns of each crucible — and the vapor cloud it produces — vary from crucible to crucible. The pattern of the cloud changes over time as crucibles age. A thick layer of an inorganic salt — between 400 and 500 micrometers — must be deposited on a metal substrate with microscopic evenness and regularity.

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At-Home Medical Diagnostic and Monitoring Technologies

New home-use and point-of-care diagnostic medical technologies are needed. The diagnostics kits should monitor diseases not easily measured. Testing may be done within the device, or the device may be a tethered testing head that reports to a central diagnostics facility. The product can be tethered via phone, cell phone, or Internet, for example. A sample may also be prepared by the device and physically delivered to a central testing service. Areas of interest include cardiac, cholesterol, digestive health, lung function, osteoporosis, and progressive neuropathy.

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Fast-Charge Technology Finds Battery “Sweet Spot”

A technology recharges batteries in up to one-tenth the time of conventional methods. The device creates conditions within the battery that allow power to be input as fast as the cell can accept the charge. By creating a charging “ecosystem,” the optimum battery charging conditions are present which, in turn, cause the necessary redox reactions to occur at a very fast rate, with little to no side reactions occurring from an input of excess energy.

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Technology Produces Electrically Conductive Polyester

New polyester compositions feature desired electrical characteristics without unduly deteriorating the other valued melt viscosity, processing, and shaped article properties. The electrically conductive polyester has strong conductivity at low carbon black loading. The use of carbon black with specific physical properties is critical for achieving the desired mix of electrical and processing traits. The carbon black component may be added at the monomer stage, such as with the dicarboxylic acid or with the glycol, or to the initial (trans)esterification product.

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Friction Reduction of Steel Surfaces

A global organization needs innovative technologies that will decrease the surface friction between steel surfaces. Thin, 0.2-mm steel components must come into shear contact with each other, resulting in slip, wear, and heat. The components are lubricated to reduce friction. Any proposed solution must have some degree of flexibility, by a radius between 50 and 100 mm. The non-rigid technology should be unaffected by a shear force of 50 N, or operating temperatures of -20 to +180 °C.

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Improved Efficiency of Jet Engines

By minimizing the distance between the rotating vanes of a turbine and the static case structure housing the rotating blades, a client seeks to improve the efficiency of jet engines. Eliminating system leakage is essential to providing the most amount of energy for the lowest cost. The compressor fans of a turbine engine must maintain extremely tight tolerances to reduce leakage around the vanes. Minimizing leakage, a critical task given the smaller features of the vane and rotor geometry, is a particular challenge because of the jet engine’s high pressures and temperatures.

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