Sundell
Lars Sundell, Moss NO
Patent application number | Description | Published |
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20140304439 | PERIPHERAL COMMUNICATION - Peripherals ( | 10-09-2014 |
Mats Sundell, Hirvlax FI
Patent application number | Description | Published |
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20100206134 | METHOD FOR RECOVERY - A method is provided for recovering metals from a spent catalyst composition containing an organic contaminant and catalytically active metals on a catalyst support. The metals are leached from the spent catalyst composition by adding under stirring an ionic liquid. The ionic liquid containing the leached metals is separated from the organic contaminant and the catalyst support by adding under stirring an anti-solvent. After removing the organic contaminant and the catalyst support, the leached metals are separated from the ionic liquid for example by selective precipitation, ion exchange, solvent extraction, electrodeposition, chromatographic, or pyrometallurgical methods. | 08-19-2010 |
Stephen Sundell, Cherry Hill, NJ US
Patent application number | Description | Published |
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20100207536 | HIGH EFFICIENCY LIGHT SOURCE WITH INTEGRATED BALLAST - The present invention relates to regulated power supplies or ballasts integrated with an LED light source. The invention provides a power factor correction scheme producing a greater circuit power factor and improved frequency spectrum characteristics, in which a voltage corresponding to the instantaneous inductor current is sampled and compared to a scaled sample of the rectified input AC line voltage. The line voltage sample modulates the inductor peak charge current in the envelope of the rectified AC voltage waveform. This drives the LED output voltage at a frequency of twice the input line voltage frequency, such that no flicker is perceived in the light output because the persistence in LED phosphor assists in averaging the flux output. | 08-19-2010 |