Sjogren, US
Allen E. Sjogren, Park City, UT US
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20100037626 | TEMPERATURE CALIBRATION DEVICE HAVING RECONFIGURABLE HEATING/COOLING MODULES TO PROVIDE WIDE TEMPERATURE RANGE - A temperature calibration device uses Peltier cells for heating and cooling. The Peltier cells are connected to a relay that connects the cells to each other in one configuration for heating and a different configuration for cooling. The Peltier cells also receive supply voltages having different magnitudes and polarities for heating and cooling. By changing the manner in which the Peltier cells are connected to each other and using different supply voltages for heating and cooling, the cells are able to operate closer to their specified maximum temperature differential without sacrificing the useful life of the cells. | 02-18-2010 |
Allen Erik Sjogren, Park City, UT US
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20090003406 | Thermal switch calibration apparatus and methods - An apparatus and method for testing thermal switches is disclosed including modulating the temperature of a receiver in thermal contact with a thermal switch at a first rate within a range containing the nominal switch temperature of the thermal switch. A first temperature at which the switch changes state is recorded. The temperature is then modulated at a second rate and a second temperature at which the switch again changes state is recorded. The temperature may be modulated at a third rate slower than the second rate to determine a third temperature. The first, second, and third switch temperatures are then processed and output to an operator. The first, second, and third rates may be determined according to an exponentially decreasing function. | 01-01-2009 |
20090121033 | Open-Loop Vertical Drywell Gradient Correction System and Method - A system and method are disclosed for controlling a drywell including a receiver having upper and lower ends with the lower end being more insulated than the upper and having a temperature sensor in thermal contact therewith. Upper and lower heaters are in thermal contact with the upper and lower ends respectively. A controller includes an integrated circuit having a temperature sensor. A reading from the integrated circuit is used to control power to the upper heater and reduce a temperature gradient between the upper and lower ends of the receiver. | 05-14-2009 |
20090125651 | Keypad De-Bouncing Apparatus and Method - An apparatus and method for de-bouncing keypad inputs is disclosed including interrupting a processor upon detecting a key press, reading input signals from the key pad to determine an initial port value and starting a timer. A keypad interrupt is disabled and processing resumes until expiration of the timer. The timer interrupts the processor and the input signals are read a second time and combined with the initial port value to determine a key identifier. The timer is started again and processing resumes. Upon expiration of the timer the processor checks for key release. If release is not detected, the timer is again started. If release occurs, the timer is disabled and the keypad interrupt is enabled. | 05-14-2009 |
20100308772 | SYSTEM AND METHOD FOR USING STORED ELECTRICAL ENERGY TO QUIET POWER SENSITIVE MEASUREMENT CIRCUITS - The present invention is a system and method for temporarily storing electrical energy to power sensitive measurement circuits. In one embodiment, a switch-mode power converter is operable to charge an energy storage device. After the energy storage device is sufficiently charged, the switch-mode power converter is powered off so that sensitive measurements may be made without being affected by noise or interference caused by the switch-mode power converter. Once the measurement has been made, the switch-mode power converter is powered on and provides power to the energy storage device to recharge the energy storage device so that a subsequent measurement may be made. | 12-09-2010 |
20110004711 | KEYPAD DE-BOUNCING APPARATUS AND METHOD - An apparatus and method for de-bouncing keypad inputs is disclosed including interrupting a processor upon detecting a key press, reading input signals from the key pad to determine an initial port value and starting a timer. A keypad interrupt is disabled and processing resumes until expiration of the timer. The timer interrupts the processor and the input signals are read a second time and combined with the initial port value to determine a key identifier. The timer is started again and processing resumes. Upon expiration of the timer the processor checks for key release. If release is not detected, the timer is again started. If release occurs, the timer is disabled and the keypad interrupt is enabled. | 01-06-2011 |
20110164651 | OPEN-LOOP VERTICAL DRYWELL GRADIENT CORRECTION SYSTEM AND METHOD - A system and method are disclosed for controlling a drywell including a receiver having upper and lower ends with the lower end being more insulated than the upper and having a temperature sensor in thermal contact therewith. Upper and lower heaters are in thermal contact with the upper and lower ends respectively. A controller includes an integrated circuit having a temperature sensor. A reading from the integrated circuit is used to control power to the upper heater and reduce a temperature gradient between the upper and lower ends of the receiver. | 07-07-2011 |
20130148687 | OPEN-LOOP VERTICAL DRYWELL GRADIENT CORRECTION SYSTEM AND METHOD - A system and method are disclosed for controlling a drywell including a receiver having upper and lower ends with the lower end being more insulated than the upper end having a temperature sensor in thermal contact therewith. Upper and lower heating elements are in thermal contact with the upper and lower ends, respectively. A controller includes an integrated circuit having a temperature sensor. A reading from the integrated circuit is used to control power to the upper heating element and reduce a temperature gradient between the upper and lower ends of the receiver. | 06-13-2013 |
Clas E. Sjogren, Sugarland, TX US
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20080213052 | Indexable cutting inserts and methods for producing the same - A method of making a cutting insert includes: (i) forming a blank having a substrate and superhard material, the substrate having more than 4 pockets, the superhard material disposed within the pockets; (ii) removing cutting tips from the blank by cutting the blank along cutting lines; (iii) providing a cutting insert body having a plurality of cavities for receiving a corresponding number of cutting tips; (iv) inserting a cutting tip into each of the plurality of cavities; and (v) brazing the cutting tips to the cutting insert body. A related cutting insert includes: a cutting insert body having a plurality of cavities formed therein; a plurality of cutting tips, each of the plurality of cutting tips disposed in a respective cavity, the cutting tips having a geometry that provides a mechanical retention or lock when inserted into the cavities of the cutting insert body, the cutting tips further being brazed in the cutting insert body. | 09-04-2008 |
David R. Sjogren, Sherwood, OR US
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20110045043 | SUSTAINED RELEASE MICROBIAL INSECT CONTROL COMPOSITION AND MEANS - Effective sustained release of microbial pesticides in aquatic environments can be achieved by the combination of buoyant particles with a particulate microbial active ingredient. The resulting materials in the form of a particulate have combined density of less than one. The materials are then dispersed into gypsum slurry that is poured into briquette molds, or made into granules or pellets of various sizes, to form a solid, sinking, pest control composition. Once applied in aquatic field sites, the surface of the matrix slowly dissolves, releasing many minute buoyant pesticide laden particles to the water surface over the life of the product. Once at the surface, the particulate microbial pesticide(s) release from the buoyant particles and are distributed throughout the water column to be ingested by susceptible immature filter feeding mosquitoes and pestiferous flies. | 02-24-2011 |
Erik J. Sjogren, Atlanta, GA US
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20090215599 | DISPOSABLE SERVINGWARE CONTAINERS WITH FLANGE TABS - Disposable containers include peripheral tabs which are useful for positioning and processing the containers and operate as separators. In a preferred embodiment, the tabs correspond to tabs on a paperboard blank where the tabs are useful for controlling the orientation of the blanks so that printed and shape features may be kept in registration during manufacturing of a disposable servingware container. | 08-27-2009 |
Erik J. Sjogren, Decatur, GA US
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20130297448 | METHOD AND DEVICE FOR EXCHANGING SEMI-FUNGIBLE GOODS AND SERVICES - In one aspect, the present disclosure relates to a method for exchanging semi-fungible goods and services. In some embodiments, the method includes electronically receiving from a remote server one or more existing offers, displaying on a screen the existing offers to a participant, and receiving from the participant a selection of an existing offer. In one aspect, the method includes receiving information from the participant related to an offer for an exchange of semi-fungible goods or services and electronically transmitting the offer to the remote server. In some embodiments, the semi-fungible goods or services include tickets, reservations, services, order in line, educational services, or physical objects. In some embodiments, the educational services include a class, a lecture, a lab, or a teacher. In some embodiments, the offer includes parameters comprising date, time, location, loyalty account assets or money. | 11-07-2013 |
John F. Sjogren, Wichita, KS US
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20100079297 | APPARATUS AND METHOD FOR WIDTH DETECTION - An apparatus and method for detecting a difference in width of a strip of material from a desired width of material. The apparatus may comprise a light source, a light detector, an alarm, a first fiber optic cable coupled with the light source, a second fiber optic cable coupled with the light detector, and a housing. The housing may comprise a material slot for passing the strip of material therethrough such that edges of the strip of material may at least partially intersect a plurality of light fields directed from the first fiber optic cable to the second fiber optic cable. The amount of light detected by the light detector is dependant on the amount of light blocked by the strip of material. If the amount of light received is outside of a range of tolerance from the desired width of material, the alarm may be actuated. | 04-01-2010 |
John Faber Sjogren, Wichita, KS US
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20110176149 | APPARATUS AND METHOD FOR THICKNESS DETECTION - An apparatus and method for detecting an increase in thickness of a strip of material from a desired thickness. The apparatus may comprise a light source, a light detector, an indicator, a first fiber optic cable coupled with the light source, a second fiber optic cable coupled with the light detector, and a housing. The housing may comprise a material slot for passing the strip of material therethrough and fixing optical fibers of the first fiber optic cables to reflect light off of a first and second face of the strip of material into optical fibers of the second fiber optic cable. The amount of light detected by the light detector depends on the proximity of each of the faces of the strip of material to ends of the optical fibers. The thicker the strip of material, the less light received by the light detector, which may actuate the indicator. | 07-21-2011 |
Richard Sjogren, Golden, CO US
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20160068906 | METHOD OF SCREENING NEWBORNS FOR GENE VARIANTS - Disclosed are methods, systems, and kits for screening a newborn infant for one or more gene variants comprising, obtaining a genomic DNA containing sample from the newborn infant; sequencing at least one target region of each of two or more genes selected from the group consisting of PCCA, PCCB, MUT, MMAA, MMAB, MMADHC, MCEE, IVD, ACAT1, ACADM, ACADVL, HADHA, ASL, BCKDHA, BCKDHB, DBT, DLD, CYP21A2, GALT, and ACAD8 in the genomic DNA; and screening for a gene variant from the sequenced target regions of each gene to identify gene variants present in the genomic DNA, wherein the sequencing does not include whole genome sequencing or whole exome sequencing. | 03-10-2016 |