Ulmen
Benjamin Ulmen, Urbana, IL US
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20130171401 | MESO-SCALE CARBON NANOTUBE SELF-ASSEMBLED TUBE STRUCTURES - Multiple-scale self-assembled tube structures (SATS) comprising multiwall carbon nanotubes (CNT) and processes for their nucleation and growth. These hierarchical and self-assembled SATS demonstrate the feasibility of controlled synthesis of macroscopic CNT structures and CNT-reinforced materials for use in broad applications such as structures, thermal transfer, electronics, fluid dynamics, and micro-fluidics. | 07-04-2013 |
John Ulmen, Redwood City, CA US
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20130081891 | PERSONAL TRANSPORT VEHICLE - An electric skateboard including a deck, a wheel and an electric motor mounted to a drive truck, the wheel rotatably supported by the drive truck and the electric motor configured to drive the wheel, wherein the drive truck is mounted to the deck, a battery mounted to a power truck and configured to power the electric motor, wherein the power truck is mounted to the deck, and a processor configured to control operation of the electric motor. | 04-04-2013 |
John Ulmen, Mountain View, CA US
Patent application number | Description | Published |
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20140277888 | DYNAMIC CONTROL FOR LIGHT ELECTRIC VEHICLES - A method for dynamic control of an electric vehicle operable based on a throttle value received from a throttle and a default throttle map correlating default output values with throttle values, the method including: determining a user parameter; detecting a condition indicative of perturbation; in response to detecting the condition indicative of perturbation, determining a replacement output value for a first throttle value based on the user parameter; and controlling vehicle operation to meet the replacement output value in response to receipt of the first throttle value. | 09-18-2014 |
John V. Ulmen, Redwood City, CA US
Patent application number | Description | Published |
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20130093439 | Capacitive Differential Quadrature Rotary Position Sensor - A rotary position sensor is provided that includes a sensing disc having an N-fold rotation symmetry and capacitive sensing pads arranged in an array pattern, where the array pattern has at least 4N-fold rotation symmetry, where N≧2, a scale disc disposed opposite the sensing disc, where the scale disc includes a pattern of conductive pads that have a sinusoidal-shape, where the pattern of sinusoidal-shaped conductive pads produce four sinusoidal capacitance waveforms in quadrature phase with the capacitive sensing pads as the sensing disc and the scale disc are rotated relative to one another to provide angular position information. to provide angular position information. This is achieved by making the overlapping area of the of the capacitive sensing pads change in a sinusoidal fashion with rotation. | 04-18-2013 |