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Dahlberg, US

Arthur J. Dahlberg, Benicia, CA US

Patent application numberDescriptionPublished
20080283444MULTI-STAGE HYDROCRACKER WITH KEROSENE RECYCLE - This invention relates to a multi-stage process for hydroprocessing gas oils. Preferably, each stage possesses at least one hydrocracking zone. The second stage and any subsequent stages possess an environment having a low heteroatom content. Light products, such as naphtha, kerosene and diesel, may be recycled from fractionation (along with light products from other sources) to the second stage (or a subsequent stage) in order to produce a larger yield of lighter products, such as gas and naphtha. Pressure, in the zone or zones subsequent to the initial zone is from 500 to 1000 psig lower than the pressure in the initial zone, in order to provide cost savings and minimize overcracking.11-20-2008
20090045100MULTI-STAGE HYDROCRACKER WITH KEROSENE RECYCLE - This invention relates to a multi-stage process for hydroprocessing gas oils. Preferably, each stage possesses at least one hydrocracking zone. The second stage and any subsequent stages possess an environment having a low heteroatom content. Light products, such as naphtha, kerosene and diesel, may be recycled from fractionation (along with light products from other sources) to the second stage (or a subsequent stage) in order to produce a larger yield of lighter products, such as gas and naphtha. Pressure in the zone or zones subsequent to the initial zone is from 500 to 1000 psig lower than the pressure in the initial zone, in order to provide cost savings and minimize overcracking.02-19-2009

Patent applications by Arthur J. Dahlberg, Benicia, CA US

Axel J. Dahlberg, Maplewood, MN US

Patent application numberDescriptionPublished
20110308395Run-Safe Filter System - A run-safe filter system is provided for confirming installation of a qualified filter element in a housing. An electrical switch has a first electrical condition in response to a qualified filter element being installed in the housing, and a second electrical condition in response to the absence of a qualified filter element installed in the housing.12-22-2011

Christopher Michael Dahlberg, Albany, NY US

Patent application numberDescriptionPublished
20120104760DYNAMOELECTRIC MACHINE SUPPORT SYSTEM - A support system for a dynamoelectric machine is disclosed. In one embodiment, the support system includes: a mounting pad having a first face and a second face, the second face including a pair of slots; a pair of spring bars welded or brazed to the mounting pad at the pair of slots; a collar welded or brazed to the first face of the mounting pad; and a key bar between and affixed to the pair of spring bars.05-03-2012

Clinton J. Dahlberg, Port Orchard, WA US

Patent application numberDescriptionPublished
20110257074METHOD FOR THE PURIFICATION OF SUBSTITUTED CYCLOPENT-2-EN-1-ONE CONGENERS AND SUBSTITUTED 1,3-CYCLOPENTADIONE CONGENERS FROM A COMPLEX MIXTURE USING COUNTERCURRENT SEPARATION - Methods of purifying individual congeners of substituted cyclohexa-2,4-dienones, substituted cyclohexane-1,3,5-triones, substituted cyclopent-2-en-1-ones, and substituted 1,3-cyclopentadiones and compositions using the same are disclosed. The purification method includes the steps of: (a) selecting a congener to be isolated; (b) dissolving the mixture of congeners in a bi-phasic solvent system specific to the selected congener to be isolated, wherein said bi-phasic system has a partition coefficient from about 0.5 to 5.0; (c) subjecting the mixture dissolved in the bi-phasic solvent system to a counter current chromatography; and (d) isolating the selected congener in substantially pure form.10-20-2011
20110275721METHOD FOR THE PURIFICATION OF SUBSTITUTED CYCLOPENT-2-EN-1-ONE CONGENERS AND SUBSTITUTED 1,3-CYCLOPENTADIONE CONGENERS FROM A COMPLEX MIXTURE USING COUNTERCURRENT SEPARATION - Methods of purifying individual congeners of substituted cyclohexa-2,4-dienones, substituted cyclohexane-1,3,5-triones, substituted cyclopent-2-en-1-ones, and substituted 1,3-cyclopentadiones and compositions using the same are disclosed. The purification method includes the steps of: (a) selecting a congener to be isolated; (b) dissolving the mixture of congeners in a bi-phasic solvent system specific to the selected congener to be isolated, wherein said bi-phasic system has a partition coefficient from about 0.5 to 5.0; (c) subjecting the mixture dissolved in the bi-phasic solvent system to a counter current chromatography; and (d) isolating the selected congener in substantially pure form.11-10-2011
20120108671CIS 3,4-DIHYDROXY-2-(3-METHYLBUTANOYL)-5-(3-METHYLBUTYL)-4-(4-METHYLPENTAN- OYL)CYCLOPENT-2-EN-1-ONE DERIVATIVES, SUBSTANTIALLY ENANTIOMERICALLY PURE COMPOSITIONS AND METHODS - The present application provides cis 3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one derivatives and substantially enantiomerically pure compositions thereof. These derivatives include (+)-(4S,5R)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, (−)-(4R,5S)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, and salts and crystals thereof. The application further provides methods of using the disclosed compounds and compositions to activate PPARγ, activate GPR120, inhibit inflammation, and treat conditions responsive to PPARγ modulation, conditions responsive to GPR120 modulation, and metabolic disturbances such as diabetes.05-03-2012

James A. Dahlberg, Eagan, MN US

Patent application numberDescriptionPublished
20090322266Systems and Methods for Controlling a DC Motor - Various systems and methods for controlling DC motors are disclosed herein. For example, one method provides for controlling a polyphase, brushless DC motor. The method includes providing a DC motor that has a plurality of phases. Such a DC motor operates by inducing a current in the plurality of phases in accordance with a plurality of commutation states. In the example, six commutation states are discussed, but fewer than or more than six commutation states may exist. The method further includes initializing a count, inducing a current in the plurality of phases in accordance with a first commutation state, and incrementing the count until the current achieves a threshold in the first commutation state. Then, a current is induced in the plurality of phases in accordance with a second commutation state, and the count is decremented until the current achieves the threshold in the second commutation state. The sign bit of the count is stored, and a desired initial commutation state is determined based at least in part on the sign bit of the count.12-31-2009

Patent applications by James A. Dahlberg, Eagan, MN US

James E. Dahlberg, Madison, WI US

Patent application numberDescriptionPublished
20090117576METHODS FOR ANALYZING NUCLEIC ACID - The present invention relates to methods and compositions for analyzing nucleic acids. In particular, the present invention provides methods and compositions for the detection and characterization of nucleic acid sequences and sequence changes. The methods of the present invention permit the detection and/or identification of genetic polymorphism such as those associated with human disease and permit the identification of pathogens (e.g., viral and bacterial strain identification).05-07-2009
20090305283CLEAVAGE OF NUCLEIC ACIDS - The present invention relates to means for the detection and characterization of nucleic acid sequences, as well as variations in nucleic acid sequences. The present invention also relates to methods for forming a nucleic acid cleavage structure on a target sequence and cleaving the nucleic acid cleavage structure in a site-specific manner. The structure-specific nuclease activity of a variety of enzymes is used to cleave the target-dependent cleavage structure, thereby indicating the presence of specific nucleic acid sequences or specific variations thereof.12-10-2009

Patent applications by James E. Dahlberg, Madison, WI US

Kenneth Alfred Dahlberg, St. Paul, MN US

Patent application numberDescriptionPublished
20100268670Method And Tool For Retirement Income Management - The present invention is a method of monitoring a retirement income plan and managing retirement income through use of a retirement income planning tool. The retirement income planning tool is comprised of modules working together in order to facilitate planning, monitoring, management and generation of a retirement income plan. The projected assets are generated in response to the processing of financial data input into the retirement income planning tool in view of potential investment performance scenarios. The financial data input into the retirement income planning tool includes at least a customer's desired retirement income levels, assets level and retirement compensation levels. The retirement income plan is comprised of at least data representative of projected retirement compensation, asset levels and projected asset withdrawals. The retirement income planning tool compares a client's retirement compensation to the comprehensive retirement income levels desired in order to determine the level of asset withdrawals necessary to achieve the comprehensive retirement income levels. The method of monitoring includes guidelines for dynamic management and monitoring of retirement asset withdrawals and investments in order to facilitate retirement asset utilization over the life of the retirement income plan.10-21-2010

Kevin A. Dahlberg, Saline, MI US

Patent application numberDescriptionPublished
20100086458METHOD AND ARCHITECTURE FOR OXIDIZING NITRIC OXIDE IN EXHAUST GAS FROM HYDROCARBON FUEL SOURCE WITH A FUEL LEAN COMBUSTION MIXTURE - An after-treatment system architecture and method for oxidizing the nitric oxide component of an exhaust stream from a hydrocarbon fueled power source operated with a fuel lean combustion mixture.04-08-2010
20110082030WASHCOATING TECHNIQUE FOR PEROVSKITE CATALYSTS - Precursor cations of A and B elements of an ABO04-07-2011

Larry J. Dahlberg, Taylors Falls, MN US

Patent application numberDescriptionPublished
20090183418SWIMMING FROG LURE AND METHOD - A frog lure device that has a life-like swimming action. In a preferred embodiment, the device has a diving “collar” disposed around an upper region of the lure body, rather than a lower region, which is common in conventional lure devices. In a specific embodiment, the collar caused the lure body to dive under the surface like a frog. Concurrent with the diving action, the lure device also has a kicking action to resemble a living frog device. In a specific embodiment, the collar also forms a trail of one or more bubbles and a vortex, or slight vacuum behind it. In a specific embodiment, the lure body includes a pair of legs, which have a suitable length to be caught in the vortex and become trapped in the vortex the pair of legs also straighten out to cause a kicking action and also provide stability to the lure body as it accelerates through the water. As the frog device traverses through the water, the legs also slightly contract and extend to resemble a kicking action. In other embodiments, the frog lure device can be crawled across surface vegetation. When given a single pull followed by a rest, the frog lure responds by diving from a surface region of the water (or suspended position) to a depth beneath the surface region at an angle not unlike a real frog. Concurrent with the diving action, the frog lure straightens its legs imitating a kicking action as it moves forward. As the lure comes to rest again, the legs coupled to the lure retract. Just like a real frog!07-23-2009