Pietrobon

Geno L. Pietrobon, Hutchinson, MN US

Patent application number	Description	Published
20080296201	Component Carrier Tape - A component carrier tape includes a longitudinal flexible strip having a plurality of component receiving pockets positioned therein. The component carrier tape further includes a plurality of indicators positioned longitudinally on the longitudinal strip and configured for indicating the position of each of the plurality of pockets. The indicators are positioned between adjacent pockets.	12-04-2008

Patent application number	Description	Published
20090039949	METHOD AND APPARATUS FOR PRODUCING A LOW-NOISE, TEMPERATURE-COMPENSATED BANDGAP VOLTAGE REFERENCE - A bandgap voltage reference circuit is achieved that does not resort to the use of resistors or regulation loops and is thus able to achieve improved noise performance while also exhibiting absolute stability, no start-up issues, and low input-voltage operation. Subcircuits comprised of four interconnected transistors of different junction areas are used to create differential base-emitter voltage sources with magnitudes that vary in direct proportion to absolute temperature. The voltages from several of these subcircuits are combined without resistors to create a voltage source that is proportional to absolute temperature. An additional transistor is operated as a forward-biased PN junction to create a voltage source that varies in a sense that is complementary to absolute temperature. By a judicious choice of the transistor-junction-area ratios and the number of subcircuits that are summed, the combination of the complementary and proportional voltage references produces a bandgap voltage reference that is nearly constant with variations in temperature. The unique summation technique presented results in a bandgap reference with a noise performance that is more than an order of magnitude better than the prior art, particularly for applications requiring low current consumption.	02-12-2009

Patent application number	Description	Published
20100326651	ISOTOPIC IDENTIFICATION OF PRODUCTION BY INDIVIDUAL FORMATIONS IN COMMINGLED GAS WELLS - A computer system and computerized method for allocating production among multiple formations produced by a hydrocarbon well, using isotopic concentration analysis. According to an aspect of the system and method, multiple single-formation isotopic concentration measurements of multiple hydrocarbon gases are taken from each formation. Within each formation, groups of similar isotopic concentration values are defined, and are mapped to geographic regions of the formations. Mixing equations are developed between regions of the different formations, for use in allocating production for a well intersecting those regions. According to another aspect of the system and method, allocation among three or more formations is performed using Monte Carlo analysis of an underspecified mixing equation, and at a measured isotopic concentration value for the commingled flow from the well.	12-30-2010