Patents by Inventor John Dahl
John Dahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11946447Abstract: Provided is a method for moving an object between a platform of a wind turbine and a deck of a vessel, wherein the platform is located at a tower the wind turbine, wherein the object is moved vertically by a hoist coupled between the object and at least one fixation site the wind turbine located above the platform and the deck, wherein the object is deflected radially from the tower by a puller coupled between the object and the vessel.Type: GrantFiled: October 15, 2019Date of Patent: April 2, 2024Assignee: Siemens Gamesa Renewable Energy A/SInventors: Erik Dahl Andersen, John Harry Jensen, Rene Schau Larsen
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Patent number: 10605944Abstract: Methods and apparatus for performing formation evaluation in a borehole intersecting an earth formation. Methods may include exciting at a first borehole depth at least one critical refraction wave by steering an acoustic beam transmitted by at least one ultrasonic transmitter to an interface in the formation to intercept the interface at a critical angle; receiving an acoustic signal comprising critical refraction wave data at a logging tool in the borehole; and obtaining a wave property measurement from the critical refraction wave data. The interface may be the borehole wall in an open-hole well or behind casing. Methods include using ultrasonic transmitter(s) to generate the plurality of acoustic beams, identifying critical refraction wave data within the response signal corresponding to the at least one critical refraction wave, and obtaining the wave property measurement from the critical refraction wave data.Type: GrantFiled: June 23, 2017Date of Patent: March 31, 2020Assignee: Baker Hughes, a GE company, LLCInventors: Wei Han, Jason M. Harris, Douglas J. Patterson, Stephen Dymmock, John Dahl
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Publication number: 20180372902Abstract: Methods and apparatus for performing formation evaluation in a borehole intersecting an earth formation. Methods may include exciting at a first borehole depth at least one critical refraction wave by steering an acoustic beam transmitted by at least one ultrasonic transmitter to an interface in the formation to intercept the interface at a critical angle; receiving an acoustic signal comprising critical refraction wave data at a logging tool in the borehole; and obtaining a wave property measurement from the critical refraction wave data. The interface may be the borehole wall in an open-hole well or behind casing. Methods include using ultrasonic transmitter(s) to generate the plurality of acoustic beams, identifying critical refraction wave data within the response signal corresponding to the at least one critical refraction wave, and obtaining the wave property measurement from the critical refraction wave data.Type: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Applicant: BAKER HUGHES INCORPORATEDInventors: Wei Han, Jason M. Harris, Douglas J. Patterson, Stephen Dymmock, John Dahl
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Patent number: 9617851Abstract: Systems, devices, and methods for evaluating cuttings entrained in a downhole fluid in a borehole intersecting an earth formation. Methods may include using at least one sensor to produce information responsive to a reflection of an emitted wave from downhole cuttings in the borehole, wherein the information is indicative of a parameter of interest relating to the downhole cuttings; and processing the information using at least one processor to estimate the parameter of interest. Methods may include using the at least one acoustic sensor to produce corresponding information from each of a plurality of azimuthally distributed orientations about a bottom hole assembly (BHA); and using the at least one processor to estimate from the information from each of the orientations an azimuthal variation of the parameter of interest. The at least one sensor may include acoustic sensors, electromagnetic sensors, and/or optical sensors.Type: GrantFiled: October 31, 2013Date of Patent: April 11, 2017Assignee: BAKER HUGHES INCORPORATEDInventors: John Dahl, Christopher J. Morgan, Michael E. Gillen
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Publication number: 20150114714Abstract: Systems, devices, and methods for evaluating cuttings entrained in a downhole fluid in a borehole intersecting an earth formation. Methods may include using at least one sensor to produce information responsive to a reflection of an emitted wave from downhole cuttings in the borehole, wherein the information is indicative of a parameter of interest relating to the downhole cuttings; and processing the information using at least one processor to estimate the parameter of interest. Methods may include using the at least one acoustic sensor to produce corresponding information from each of a plurality of azimuthally distributed orientations about a bottom hole assembly (BHA); and using the at least one processor to estimate from the information from each of the orientations an azimuthal variation of the parameter of interest. The at least one sensor may include acoustic sensors, electromagnetic sensors, and/or optical sensors.Type: ApplicationFiled: October 31, 2013Publication date: April 30, 2015Applicant: Baker Hughes IncorporatedInventors: John Dahl, Christopher J. Morgan, Michael E. Gillen
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Publication number: 20150085624Abstract: A method of dosing medication includes loading via a computerized system one or more user characteristics for a first user from a user profile for the first user, where the user characteristics include a weight of the first user. A dosing schedule is derived for a first medication from at least one of a type of the first medication and the one or more user characteristics for the first user, and a dosing amount is derived for the first medication from the one or more characteristics for the first user and the derived dosing schedule for the first user. A plurality of timer alerts are set corresponding to the derived dosing schedule, each of the timer alerts indicating the medication and derived dosing amount.Type: ApplicationFiled: September 25, 2014Publication date: March 26, 2015Inventors: David Boyd Zamjahn, John C. Weinberger, James David Zamjahn, John Dahl
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Patent number: 8784842Abstract: Particular aspects provide efficient allelic exchange methods to generate directed mutations within genes of slow-growing stains of mycobacteria (e.g., Mycobacterium avium subsp. paratuberculosis (Map), Map 10 or GFP-expressing Map K-10) using a phage-delivery system, and demonstrate high efficiency allelic exchange. Additional exemplary aspects provide non-naturally occurring slow-growing strains of mycobacteria (e.g., Map, M. bovis, M. tuberculosis) having at least one gene deletion (e.g., pknG, relA, lsr2, panC, panD, proC, trpD, sapM (MAP3432), lysA_1, leuD, and leuC, and deletion mutants at the orthologous loci of two known virulence genes in pathogenic mycobacteria (relA and pknG) and one gene related to colony morphology and biofilm formation in fast growing mycobacteria (lsr2) were made. Further aspects provide novel vaccines comprising such deletion mutants, or portions thereof, and methods for making said vaccines. Yet further aspects provide methods for protecting a mammal from virulent Map, M.Type: GrantFiled: July 14, 2008Date of Patent: July 22, 2014Assignee: Washington State UniversityInventors: William C. Davis, Mary Jo Hamilton, John Dahl, Kun Taek Park
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Patent number: 8509457Abstract: A constant balance volume control according to the present disclosure may provide a user with the ability to listen to program material originally mixed at a known “reference” level at any other suitable level without experiencing a substantial shift in tonal balance. A constant balance volume control may include two 2nd order biquad filters that are controlled in a continuous manner by the volume control of a system. The filters could be implemented in analog or digital form.Type: GrantFiled: December 11, 2007Date of Patent: August 13, 2013Assignee: THX, Ltd.Inventors: Casey Divine, John Dahl
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Patent number: 8452028Abstract: A dynamic surround channel volume control applies a variable gain control to the surround channels of a multi-channel system. Thus the levels of the surround channels are related to the main volume control of the system. This maintains a predictable relationship between the surround channels and the main or front channels.Type: GrantFiled: December 12, 2007Date of Patent: May 28, 2013Assignee: THX, Ltd.Inventors: John Dahl, Casey Divine
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Publication number: 20100266627Abstract: Particular aspects provide efficient allelic exchange methods to generate directed mutations within genes of slow-growing stains of mycobacteria (e.g., Mycobacterium avium subsp. paratuberculosis (Map), Map 10 or GFP-expressing Map K-10) using a phage-delivery system, and demonstrate high efficiency allelic exchange. Additional exemplary aspects provide non-naturally occurring slow-growing strains of mycobacteria (e.g., Map, M. bovis, M. tuberculosis) having at least one gene deletion (e.g., pknG, relA, lsr2, panC, panD, proC, trpD, sapM (MAP3432), lysA_1, leuD, and leuC, and deletion mutants at the orthologous loci of two known virulence genes in pathogenic mycobacteria (relA and pknG) and one gene related to colony morphology and biofilm formation in fast growing mycobacteria (lsr2) were made. Further aspects provide novel vaccines comprising such deletion mutants, or portions thereof, and methods for making said vaccines. Yet further aspects provide methods for protecting a mammal from virulent Map, M.Type: ApplicationFiled: July 14, 2008Publication date: October 21, 2010Applicant: WASHINGTON STATE UNIVERSITYInventors: William C. Davis, Mary Jo Hamilton, John Dahl, Kun Taek Park
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Publication number: 20100038097Abstract: Disclosed herein is a downhole coiled tubing system. The system includes, a bottom hole assembly, a coiled tubing string attached to the bottom hole assembly, and a conductor comprising an electrical signal carrier disposed within a control line, the conductor is disposed within the coiled tubing string and maintained substantially parallel with the coiled tubing string throughout the coiled tubing string and electrically coupled to the bottom hole assembly.Type: ApplicationFiled: February 9, 2009Publication date: February 18, 2010Applicant: BAKER HUGHES INCORPORATEDInventors: Rahul Madarapu, John Dahl
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Publication number: 20080159546Abstract: A dynamic surround channel volume control applies a variable gain control to the surround channels of a multi-channel system. Thus the levels of the surround channels are related to the main volume control of the system. This maintains a predictable relationship between the surround channels and the main or front channels.Type: ApplicationFiled: December 12, 2007Publication date: July 3, 2008Inventors: John Dahl, Casey Divine
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Publication number: 20080112861Abstract: Apparatus and methods are disclosed that perform thermal processing of any of various materials, including materials that ordinarily would be considered waste materials posing problems with disposal. Thermal processing can include energy recovery from the material, conversion of the material, phase change, or other process. An exemplary apparatus includes first and second liquid-processing chambers containing a liquid at a level in the first chamber lower than in the second. A flame chamber and downstream thermocatalytic chamber are immersed in the liquid in first chamber, and a dry loop is immersed in the liquid in the second chamber. The dry loop is coupled to a downstream processed/exhaust gas diffuser immersed in the first chamber. The temperature profile of a fluid stream drops as the stream passes through the apparatus. During passage, at least one thermal process is performed that contributes to the processed gas stream entering the diffuser.Type: ApplicationFiled: October 23, 2007Publication date: May 15, 2008Inventors: Brian Fisk, John Dahl
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Publication number: 20060073893Abstract: A computerized wagering game system includes a gaming module comprising gaming code which is operable when executed on to conduct a wagering game on which monetary value can be wagered, and a touchscreen incorporating audio feedback. In one embodiment, the display comprises a printed bistable liquid crystal display assembly, including a plurality of bistable liquid crystal display elements formed by printing at least a portion of each element onto a substrate. In another embodiment, the display comprises an emissive carbon nanotube display assembly, including a plurality of carbon nanotube elements operable to selectively emit electrons such that they strike a phosphor and cause it to emit light.Type: ApplicationFiled: September 27, 2005Publication date: April 6, 2006Inventor: John Dahl