Patents by Inventor Jan F. Herbst
Jan F. Herbst 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: 9914366Abstract: One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery.Type: GrantFiled: June 17, 2014Date of Patent: March 13, 2018Assignee: GM Global Technology Operations LLCInventors: Gregory P. Meisner, Jan F. Herbst, Mark W. Verbrugge
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Patent number: 9548150Abstract: New magnetic materials containing cerium, iron, and small additions of a third element are disclosed. These materials comprise compounds Ce(Fe12?xMx) where x=1-4, having the ThMn12 tetragonal crystal structure (space group I4/mmm, #139). Compounds with M=B, Al, Si, P, S, Sc, Co, Ni, Zn, Ga, Ge, Zr, Nb, Hf, Ta, and W are identified theoretically, and one class of compounds based on M=Si has been synthesized. The Si cognates are characterized by large magnetic moments (4?Ms greater than 1.27 Tesla) and high Curie temperatures (264?Tc?305° C.). The Ce(Fe12?xMx) compound may contain one or more of Ti, V, Cr, and Mo in combination with an M element. Further enhancement in Tc is obtained by nitriding the Ce compounds through heat treatment in N2 gas while retaining the ThMn12 tetragonal crystal structure; for example CeFe10Si2N1.29 has Tc=426° C.Type: GrantFiled: March 6, 2013Date of Patent: January 17, 2017Assignee: GM Global Technology Operations LLCInventors: Chen Zhou, Frederick E. Pinkerton, Jan F. Herbst
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Patent number: 9377328Abstract: A sensor includes a magnetic piece with a magnetic array, a conductive coil and ferromagnetic object. The magnetic array provides a spatially modulated magnetic field that is concentrated in the near-field. A processor calculates the ferromagnetic object's speed based on voltage induced in the conductive coil. The ferromagnetic object's movement through the magnetic field causes a change in the magnetic flux, and the rate of change is proportional to the induced voltage.Type: GrantFiled: January 24, 2012Date of Patent: June 28, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Jan F. Herbst
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Patent number: 9289778Abstract: A magnetic separator system may include a rotating wheel, a conveyor belt drawn around the wheel, and at least one magnetic array. The pulley transports material mix through a spatially modulated magnetic field generated by the magnetic array. The magnetic array may be fixed in place on the pulley and directed towards the stream of material mix, or multiple magnetic arrays may be distributed on the conveyor belt or wheel of the pulley.Type: GrantFiled: January 24, 2012Date of Patent: March 22, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alan L. Browne, Jan F. Herbst
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Patent number: 9070873Abstract: A system and method for sensing torque and angular position of a rotating shaft may include a shaft with a magnetostrictive ring affixed to the shaft. The magnetostrictive ring may generate position-dependent magnetic fields relative to the shaft's rotation. A first sensor may measure a magnetic field that varies with angular position. A second sensor may measure a magnetic field that varies with torque.Type: GrantFiled: January 24, 2012Date of Patent: June 30, 2015Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Jan F. Herbst
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Patent number: 8872519Abstract: One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery.Type: GrantFiled: August 21, 2009Date of Patent: October 28, 2014Assignee: GM Global Technology Operations LLCInventors: Gregory P. Meisner, Jan F. Herbst, Mark W. Verbrugge
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Publication number: 20140297084Abstract: One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery.Type: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Inventors: Gregory P. Meisner, Jan F. Herbst, Mark W. Verbrugge
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Publication number: 20140251500Abstract: New magnetic materials containing cerium, iron, and small additions of a third element are disclosed. These materials comprise compounds Ce(Fe12?xMx) where x=1-4, having the ThMn12 tetragonal crystal structure (space group I4/mmm, #139). Compounds with M=B, Al, Si, P, S, Sc, Co, Ni, Zn, Ga, Ge, Zr, Nb, Hf, Ta, and W are identified theoretically, and one class of compounds based on M=Si has been synthesized. The Si cognates are characterized by large magnetic moments (4?Ms greater than 1.27 Tesla) and high Curie temperatures (264?Tc?305° C.). The Ce(Fe12?xMx) compound may contain one or more of Ti, V, Cr, and Mo in combination with an M element. Further enhancement in Tc is obtained by nitriding the Ce compounds through heat treatment in N2 gas while retaining the ThMn12 tetragonal crystal structure; for example CeFe10Si2N1.29 has Tc=426° C.Type: ApplicationFiled: March 6, 2013Publication date: September 11, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: CHEN ZHOU, FREDERICK E. PINKERTON, JAN F. HERBST
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Patent number: 8807159Abstract: A valve for an anti-lock brake system, wherein the anti-lock brake system is configured for controlling flow of a fluid, includes a housing defining a cavity therein and having a longitudinal axis, a valve seat disposed within the cavity so as to define a first passage for the fluid, and an armature disposed within the cavity so as to at least partially define a second passage for the fluid. The armature is translatable with respect to the valve seat along the longitudinal axis and matable with the valve seat to seal off fluid communication between the first passage and the second passage. The armature defines a surface that is substantially resistant to corrosion from the fluid, and the surface is substantially free from a coating including zinc.Type: GrantFiled: April 27, 2011Date of Patent: August 19, 2014Assignee: GM Global Technology Operations LLCInventors: Guangling Song, Jan F. Herbst, Mark W. Verbrugge, Yar-Ming Wang
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Patent number: 8673048Abstract: Iron impurities may be removed from volumes of molten aluminum or magnesium metals or alloys by applying a static magnetic field gradient to each of the molten metal volumes, or melts. The magnetic field gradient is applied to each of the melts so that separate-phase iron impurities suspended therein will move in the direction of the applied magnetic field and become concentrated in a predetermined region of the of the melts, thereby forming an iron-rich region. The remaining iron-depleted region of each of the melts can be physically separated from the as-formed iron-rich region and cast into shaped articles of manufacture or into semi-finished articles for further processing. Such articles will have a lower iron-content than the original molten metal volumes.Type: GrantFiled: December 12, 2011Date of Patent: March 18, 2014Assignee: GM Global Technology Operations LLCInventors: Guangling Song, Jan F. Herbst, Anil K. Sachdev
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Publication number: 20130186807Abstract: A magnetic separator system may include a rotating wheel, a conveyor belt drawn around the wheel, and at least one magnetic array. The pulley transports material mix through a spatially modulated magnetic field generated by the magnetic array. The magnetic array may be fixed in place on the pulley and directed towards the stream of material mix, or multiple magnetic arrays may be distributed on the conveyor belt or wheel of the pulley.Type: ApplicationFiled: January 24, 2012Publication date: July 25, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alan L. Browne, Jan F. Herbst
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Publication number: 20130186209Abstract: A system and method for sensing torque and angular position of a rotating shaft may include a shaft with a magnetostrictive ring affixed to the shaft. The magnetostrictive ring may generate position-dependent magnetic fields relative to the shaft's rotation. A first sensor may measure a magnetic field that varies with angular position. A second sensor may measure a magnetic field that varies with torque.Type: ApplicationFiled: January 24, 2012Publication date: July 25, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Jan F. HERBST
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Publication number: 20130187638Abstract: A sensor includes a magnetic piece with a magnetic array, a conductive coil and ferromagnetic object. The magnetic array provides a spatially modulated magnetic field that is concentrated in the near-field. A processor calculates the ferromagnetic object's speed based on voltage induced in the conductive coil. The ferromagnetic object's movement through the magnetic field causes a change in the magnetic flux, and the rate of change is proportional to the induced voltage.Type: ApplicationFiled: January 24, 2012Publication date: July 25, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Jan F. HERBST
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Publication number: 20130145899Abstract: Iron impurities may be removed from volumes of molten aluminum or magnesium metals or alloys by applying a static magnetic field gradient to each of the molten metal volumes, or melts. The magnetic field gradient is applied to each of the melts so that separate-phase iron impurities suspended therein will move in the direction of the applied magnetic field and become concentrated in a predetermined region of the of the melts, thereby forming an iron-rich region. The remaining iron-depleted region of each of the melts can be physically separated from the as-formed iron-rich region and cast into shaped articles of manufacture or into semi-finished articles for further processing. Such articles will have a lower iron-content than the original molten metal volumes.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: GUANGLING SONG, JAN F. HERBST, ANIL K. SACHDEV
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Publication number: 20120285583Abstract: Useful permanent magnet materials are formed by processing molten alloys of cerium, iron, and boron to form permanent magnet compositions with appreciable coercivity and remanence. For example, Ce16.7Fe77.8B5.6 has been produced with coercivity, Hci of 6.18 kOe and remanence, Br of 4.92 kG. In one practice, streams of the molten alloy are rapidly quenched (e.g., by melt spinning) to form magnetically-soft melt-spun material which is suitably annealed to obtain permanent magnet properties. In another practice, the streams of molten alloy are quenched at a predetermined quench rate to directly obtain permanent magnet properties in the cerium-iron-boron material.Type: ApplicationFiled: February 7, 2012Publication date: November 15, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Martin S. Meyer, Jan F. Herbst, Frederick E. Pinkerton
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Publication number: 20120273710Abstract: A valve for an anti-lock brake system, wherein the anti-lock brake system is configured for controlling flow of a fluid, includes a housing defining a cavity therein and having a longitudinal axis, a valve seat disposed within the cavity so as to define a first passage for the fluid, and an armature disposed within the cavity so as to at least partially define a second passage for the fluid. The armature is translatable with respect to the valve seat along the longitudinal axis and matable with the valve seat to seal off fluid communication between the first passage and the second passage. The armature defines a surface that is substantially resistant to corrosion from the fluid, and the surface is substantially free from a coating including zinc.Type: ApplicationFiled: April 27, 2011Publication date: November 1, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Guangling Song, Jan F. Herbst, Mark W. Verbrugge, Yar-Ming Wang
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Patent number: 8071064Abstract: State-of-the-art electronic structure calculations yield results consistent with the observed compound SiLi2Mg and provide likelihood of the availability of IrLi2Mg and RhLi2Mg. Similar calculations provide likelihood of the availability of YLi2MgHn, ZrLi2MgHn, NbLi2MgHn, MoLi2MgHn, TcLi2MgHn, RuLi2MgHn, RhLi2MgHn, LaLi2MgHn, Ce4+Li2MgHn, Ce3+Li2MgHn, PrLi2MgHn, NdLi2MgHn, PmLi2MgHn, SmLi2MgHn, EuLi2MgHn, GdLi2MgHn, TbLi2MgHn, DyLi2MgHn, HoLi2MgHn, ErLi2MgHn, TmLi2MgHn, YbLi2MgHn, LuLi2MgHn, HfLi2MgHn, TaLi2MgHn, ReLi2MgHn, OsLi2MgHn, and IrLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.Type: GrantFiled: October 19, 2009Date of Patent: December 6, 2011Assignee: GM Global Technology Operations LLCInventors: Jan F. Herbst, Martin S. Meyer, James R. Salvador
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Patent number: 7968071Abstract: State-of-the-art electronic structure calculations provide the likelihood of the availability of AlLi2MgHn, ScLi2MgHn, TiLi2MgHn, VLi2MgHn, CrLi2MgHn, MnLi2MgHn, FeLi2MgHn, CoLi2MgHn, NiLi2MgHn, CuLi2MgHn, ZnLi2MgHn, GaLi2MgHn, GeLi2MgHn, PdLi2MgHn, AgLi2MgHn, CdLi2MgHn, InLi2MgHn, SnLi2MgHn, SbLi2MgHn, PtLi2MgHn, AuLi2MgHn, HgLi2MgHn, TlLi2MgHn, PbLi2MgHn, and BiLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.Type: GrantFiled: August 12, 2009Date of Patent: June 28, 2011Assignee: GM Global Technology Operations LLCInventor: Jan F. Herbst
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Publication number: 20110091368Abstract: State-of-the-art electronic structure calculations yield results consistent with the observed compound SiLi2Mg and provide likelihood of the availability of IrLi2Mg and RhLi2Mg. Similar calculations provide likelihood of the availability of YLi2MgHn, ZrLi2MgHn, NbLi2MgHn, MoLi2MgHn, TcLi2MgHn, RuLi2MgHn, RhLi2MgHn, LaLi2MgHn, Ce4+Li2MgHn, Ce3+Li2MgHn, PrLi2MgHn, NdLi2MgHn, PmLi2MgHn, SmLi2MgHn, EuLi2MgHn, GdLi2MgHn, TbLi2MgHn, DyLi2MgHn, HoLi2MgHn, ErLi2MgHn, TmLi2MgHn, YbLi2MgHn, LuLi2MgHn, HfLi2MgHn, TaLi2MgHn, ReLi2MgHn, OsLi2MgHn, and IrLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.Type: ApplicationFiled: October 19, 2009Publication date: April 21, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Jan F. Herbst, Martin S. Meyer, James R. Salvador
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Publication number: 20110038776Abstract: State-of-the-art electronic structure calculations provide the likelihood of the availability of AlLi2MgHn, ScLi2MgHn, TiLi2MgHn, VLi2MgHn, CrLi2MgHn, MnLi2MgHn, FeLi2MgHn, CoLi2MgHn, NiLi2MgHn, CuLi2MgHn, ZnLi2MgHn, GaLi2MgHn, GeLi2MgHn, PdLi2MgHn, AgLi2MgHn, CdLi2MgHn, InLi2MgHn, SnLi2MgHn, SbLi2MgHn, PtLi2MgHn, AuLi2MgHn, HgLi2MgHn, TlLi2MgHn, PbLi2MgHn, and BiLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.Type: ApplicationFiled: August 12, 2009Publication date: February 17, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Jan F. Herbst