Patents by Inventor David Wallin
David Wallin 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: 11808873Abstract: Systems and methods for locating tagged objects in remote regions are presented herein, in one embodiment, a method of locating tagged objects in remote regions includes creating a signal strength probability density map by. The method also includes transmitting first packets of data from at least one first tag to a plurality of stations and determining, by a plurality of stations, received signal strength indicator (RSSI) for received first packets of data. The method also includes transmitting, by the plurality of stations, the RSSI to an uplink node; and transmitting, by the uplink node, the RSSI to a database. The method further includes determining, by the database, the signal strength probability density map representative of probabilistic locations of the at least one first tag; and transmitting second packets of data from a second tag to the plurality of stations.Type: GrantFiled: March 31, 2021Date of Patent: November 7, 2023Assignee: WESTERN WASHINGTON UNIVERSITYInventors: David Wallin, Andrew Bunn, John Lund
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Publication number: 20230123690Abstract: Systems and methods for locating tagged objects in remote regions are presented herein, in one embodiment, a method of locating tagged objects in remote regions includes creating a signal strength probability density map by. The method also includes transmitting first packets of data from at least one first tag to a plurality of stations and determining, by a plurality of stations, received signal strength indicator (RSSI) for received first packets of data. The method also includes transmitting, by the plurality of stations, the RSSI to an uplink node; and transmitting, by the uplink node, the RSSI to a database. The method further includes determining, by the database, the signal strength probability density map representative of probabilistic locations of the at least one first tag; and transmitting second packets of data from a second tag to the plurality of stations.Type: ApplicationFiled: March 31, 2021Publication date: April 20, 2023Applicant: WESTERN WASHINGTON UNIVERSITYInventors: David WALLIN, Andrew BUNN, John Lund
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Patent number: 10547230Abstract: Electric motor systems and methods may provide highly efficient operation. The electric motor systems and methods discussed herein provide an oil filled motor that is low speed and utilizes permanent magnets. The electric motor may utilize a large number of poles and fractional slot design. Further, in some embodiments, the electric motor systems and methods may be suitable for use downhole.Type: GrantFiled: October 3, 2016Date of Patent: January 28, 2020Assignee: HENRY RESEARCH AND DEVELOPMENT, LLCInventors: Trevor Hardway, Michael Salerno, Ronald David Wallin
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Publication number: 20170025915Abstract: Electric motor systems and methods may provide highly efficient operation. The electric motor systems and methods discussed herein provide an oil filled motor that is low speed and utilizes permanent magnets. The electric motor may utilize a large number of poles and fractional slot design. Further, in some embodiments, the electric motor systems and methods may be suitable for use downhole.Type: ApplicationFiled: October 3, 2016Publication date: January 26, 2017Applicant: Henry Research & Development, LLCInventors: Trevor Hardway, Michael Salerno, Ronald David Wallin
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Patent number: 9484784Abstract: Electric motor systems and methods may provide highly efficient operation. The electric motor systems and methods discussed herein provide an oil filled motor that is low speed and utilizes permanent magnets. The electric motor may utilize a large number of poles and fractional slot design. Further, in some embodiments, the electric motor systems and methods may be suitable for use downhole.Type: GrantFiled: January 7, 2014Date of Patent: November 1, 2016Assignee: HENRY RESEARCH AND DEVELOPMENT, LLCInventors: Trevor Hardway, Michael Salerno, Ronald David Wallin
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Patent number: 9447788Abstract: A linear pump and motor system includes a motor, rotary-to-linear mechanism, pressure compensation device (PCD), and gas mitigation assembly. The rotary-to-linear mechanism may translate rotation of a motor into linear motion to provide a pumping action. A PCD may minimize a pressure differential between lubrication fluids and external fluids. A gas mitigation assembly may provide a mechanism that mechanically opens a valve. In some embodiments, a PCD may be utilized separately from the linear pump. In some embodiments, a gas mitigation assembly may be utilized separately from the linear pump.Type: GrantFiled: October 2, 2013Date of Patent: September 20, 2016Assignee: HENRY RESEARCH AND DEVELOPMENT LLCInventors: James C. Henry, James David Henry, Ronald David Wallin, Frederick Eugene Morrow, Trevor Hardway
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Publication number: 20140191602Abstract: Electric motor systems and methods may provide highly efficient operation. The electric motor systems and methods discussed herein provide an oil filled motor that is low speed and utilizes permanent magnets. The electric motor may utilize a large number of poles and fractional slot design. Further, in some embodiments, the electric motor systems and methods may be suitable for use downhole.Type: ApplicationFiled: January 7, 2014Publication date: July 10, 2014Applicant: Henry Research & DevelopmentInventors: Trevor Hardway, Michael Salerno, Ronald David Wallin
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Publication number: 20140105759Abstract: A linear pump and motor system includes a motor, rotary-to-linear mechanism, pressure compensation device (PCD), and gas mitigation assembly. The rotary-to-linear mechanism may translate rotation of a motor into linear motion to provide a pumping action. A PCD may minimize a pressure differential between lubrication fluids and external fluids. A gas mitigation assembly may provide a mechanism that mechanically opens a valve. In some embodiments, a PCD may be utilized separately from the linear pump. In some embodiments, a gas mitigation assembly may be utilized separately from the linear pump.Type: ApplicationFiled: October 2, 2013Publication date: April 17, 2014Applicant: Henry Research & DevelopmentInventors: James C. Henry, James David Henry, Ronald David Wallin, Frederick Eugene Morrow, Trevor Hardway
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Patent number: 7845194Abstract: In splicing two optical fibers to each other using an electric arc formed between electrodes images of the regions being heated and thereby fusioned to each other are taken. The images cover a rectangular field (43) having the fibers located centrally, along a center line of the field and parallel to the long sides of the field. The images are evaluated to determine a value of the position of the center of the electric arc in relation to the position of the end surfaces of the fibers. This value can then be used for placing the end surfaces just at the arc center. In the image the image of the optical fibers can be excluded so that only light intensity from the air discharge of the electric arc is recorded in the captured images. The field (41) excluded can be a narrow strip of uniform width located symmetrically around the image of the fibers.Type: GrantFiled: May 9, 2001Date of Patent: December 7, 2010Assignee: Telefonaktiebolaget LM EricssonInventors: Wei-Ping Huang, Tomas Adebäck, David Wallin
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Patent number: 7003200Abstract: The polarization axes of the ends of two PM fibers are aligned in an automatic fiber splicer by first making a linear alignment of the fiber ends (1, 1?) using movable retainers (21) the same way as for conventional splicing. The fiber ends are rotated by rotatable fixtures (22) to capture images by a camera (9) and therefrom, in an image processing and analysis unit (15), as controlled by logical circuits (33) light contrast profiles are determined as functions of the angular position. From the light contrast profiles the polarization axes are determined and then they are aligned with each other. The images are captured of an area at and around the fiber ends as seen in an observation plane. This observation plane is taken to have such a position that the variation of the light contrast profiles is sufficiently large, this making the determination of the angular positions of the polarization axes have a sufficient accuracy, also for for example elliptical core fibers.Type: GrantFiled: February 26, 2003Date of Patent: February 21, 2006Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Wei-Ping Huang, David Wallin, Peter Lindskog
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Publication number: 20050254754Abstract: The polarization axes of the ends of two PM fibers are aligned in an automatic fiber splicer by first making a linear alignment of the fiber ends (1, 1?) using movable retainers (21) the same way as for conventional splicing. The fiber ends are rotated by rotatable fixtures (22) to capture images by a camera (9) and therefrom, in an image processing and analysis unit (15), as controlled by logical circuits (33) light contrast profiles are determined as functions of the angular position. From the light contrast profiles the polarization axes are determined and then they are aligned with each other. The images are captured of an area at and around the fiber ends as seen in an observation plane. This observation plane is taken to have such a position that the variation of the light contrast profiles is sufficiently large, this making the determination of the angular positions of the polarization axes have a sufficient accuracy, also for for example elliptical core fibers.Type: ApplicationFiled: February 26, 2003Publication date: November 17, 2005Inventors: Wei-Ping Huang, David Wallin, Peter Lindskog
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Publication number: 20030172680Abstract: In splicing two optical fibers to each other using an electric arc formed between electrodes images of the regions being heated and thereby fusioned to each other are taken. The images cover a rectangular field (43) having the fibers located centrally, along a center line of the field and parallel to the long sides of the field. The images are evaluated to determine a value of the position of the center of the electric arc in relation to the position of the end surfaces of the fibers. This value can then be used for placing the end surfaces just at the arc center. In the image the image of the optical fibers can be excluded so that only light intensity from the air discharge of the electric arc is recorded in the captured images. The field (41) excluded can be a narrow strip of uniform width located symmetrically around the image of the fibers.Type: ApplicationFiled: March 11, 2003Publication date: September 18, 2003Inventors: Wei-Ping Huang, Tomas Adeback, David Wallin