Patents by Inventor Robert Jett Field
Robert Jett Field 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: 10704599Abstract: A balanced switching amplifier for a magnetic bearing assembly may include a first switching amplifier configured to drive a first load of an electromagnet of the magnetic bearing assembly via a first plurality of lead wires. The balanced switching amplifier may also include a second switching amplifier configured to drive a second load of the electromagnet via a second plurality of lead wires. The first switching amplifier and the second switching amplifier may be configured to operate in tandem such that respective voltages in the first plurality of lead wires and the second plurality of lead wires substantially neutralize one another, thereby reducing electromagnetic emissions from each of the first plurality of lead wires and the second plurality of lead wires.Type: GrantFiled: October 23, 2017Date of Patent: July 7, 2020Assignee: Synchrony, Inc.Inventors: Robert Jett Field, Kirk J. Treubert
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Publication number: 20190353203Abstract: A balanced switching amplifier for a magnetic bearing assembly may include a first switching amplifier configured to drive a first load of an electromagnet of the magnetic bearing assembly via a first plurality of lead wires. The balanced switching amplifier may also include a second switching amplifier configured to drive a second load of the electromagnet via a second plurality of lead wires. The first switching amplifier and the second switching amplifier may be configured to operate in tandem such that respective voltages in the first plurality of lead wires and the second plurality of lead wires substantially neutralize one another, thereby reducing electromagnetic emissions from each of the first plurality of lead wires and the second plurality of lead wires.Type: ApplicationFiled: October 23, 2017Publication date: November 21, 2019Inventors: Robert Jett Field, Kirk J. Treubert
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Patent number: 9583991Abstract: A machine is provided including magnetic radial bearings to magnetically levitate a rotating shaft. Each of the magnetic radial bearings includes stator magnet groups. Each of the stator magnet groups includes stator magnets. Each of the stator magnet groups is operatively configured to fully support the rotating shaft independently of each other stator magnet group of the stator magnet groups so that the machine continues to operate with the failure of one or more components of the machine.Type: GrantFiled: June 22, 2010Date of Patent: February 28, 2017Inventors: Victor Iannello, Christopher Sortore, Robert Jett Field, Kirk Treubert
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Patent number: 8987959Abstract: A magnetic bearing thrust stator is provided including, a plurality of stator sectors. Each of the stator sectors includes a semi-circumferentially slotted stator portion including a plurality of semi-circumferential poles and a first coil portion shaped to fit substantially within the semi-circumferentially slotted stator portion.Type: GrantFiled: June 23, 2011Date of Patent: March 24, 2015Assignee: Dresser-Rand CompanyInventors: Christopher Sortore, Victor Iannello, Robert Jett Field, Gary S. Ramsey, George R. Erdman
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Patent number: 8698367Abstract: An electric machine is provided including a rotor having a plurality of magnets retained on the rotor. The plurality of magnets are retained via a sleeve. The sleeve is retained via a band. The band includes a stacked plurality of washer laminations. Each of the plurality of washer laminations is electrically insulated from an adjacent washer lamination.Type: GrantFiled: April 16, 2009Date of Patent: April 15, 2014Assignee: Synchrony, Inc.Inventors: Christopher Sortore, Victor Iannello, Robert Jett Field
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Patent number: 8330311Abstract: A machine is provided, including a magnetic thrust bearing having a rotor portion, a stator portion, and a housing. The housing substantially surrounds the stator portion and the rotor portion. The rotor portion includes a thrust disk adapted to be circumferentially attached to a rotor and to rotate with the rotor. The thrust disk defines a thrust disk first side and a thrust disk second side, the first side being opposite to the second side.Type: GrantFiled: April 16, 2009Date of Patent: December 11, 2012Assignee: Dresser-Rand CompanyInventors: Gary Ramsey, Christopher Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert, Mark Hanson
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Publication number: 20110316376Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface adapted for and/or resulting from, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can comprise and/or relate to: via a thrust stator of a magnetic bearing, the thrust stator adapted to be split into sectors so that a shaft of a machine can be removed from the magnetic bearing, producing an axi-symmetric field at each pole face of the thrust stator when the sectors are operatively assembled in the machine; and/or a magnetic bearing thrust stator, comprising a plurality of stator sectors, each of the stator sectors comprising a semi-circumferentially slotted stator portion comprising a plurality of semi-circumferential poles and a first coil portion shaped to fit substantially within the semi-circumferentially slotted stator portion.Type: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Applicant: SYNCHRONY, INC.Inventors: Christopher Sortore, Victor Iannello, Robert Jett Field, Gary S. Ramsey, George R. Erdman
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Publication number: 20100327687Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface adapted for and/or resulting from, and/or a method and/or machine-readable medium storing machine-implementable instructions for, activities that can comprise and/or relate to, via magnetic radial bearings, magnetically levitating a rotating shaft, each of said magnetic radial bearings comprising stator magnet groups, each of said stator magnet groups comprising stator magnets, each of said stator magnet groups operatively adapted to fully support said rotating shaft independently of each other of said stator magnet groups so that the magnetic bearing system continues to operate with the failure of one or more components of the system.Type: ApplicationFiled: June 22, 2010Publication date: December 30, 2010Inventors: Victor Iannello, Christopher Sortore, Robert Jett Field, Kirk Treubert
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Patent number: 7687948Abstract: Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy to a corresponding electromagnet of the plurality of electromagnets.Type: GrantFiled: October 21, 2008Date of Patent: March 30, 2010Inventors: Christopher K. Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert
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Patent number: 7629715Abstract: Certain exemplary embodiments can comprise a system comprising a channel adapted to guide a coolant, the channel bounded at least in part by an inner channel wall defined by a motor housing adapted to substantially surround a stator of an electric motor, the inner channel wall adapted to conduct, to the coolant, heat generated by the stator.Type: GrantFiled: May 30, 2006Date of Patent: December 8, 2009Assignee: Synchrony, Inc.Inventors: Christopher Sortore, Robert Jett Field, Victor Iannello
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Publication number: 20090261678Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, and/or method adapted for providing an electric machine comprising: a rotor comprising a plurality of magnets retained on said rotor via a sleeve that is retained via a band comprising a stacked plurality of washer laminations, each of said washer laminations electrically insulated from an adjacent washer lamination.Type: ApplicationFiled: April 16, 2009Publication date: October 22, 2009Inventors: Christopher K. Sortore, Victor Iannello, Robert Jett Field
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Publication number: 20090265038Abstract: Certain exemplary embodiments can provide a machine comprising: a magnetic thrust bearing comprising: a rotor portion; a stator portion; and a housing substantially surrounding said stator portion and said rotor portion; said rotor portion comprising a thrust disk adapted to be circumferentially attached to a rotor and to rotate with the rotor, said thrust disk defining a thrust disk first side and a thrust disk second side, said first side opposing said second side.Type: ApplicationFiled: April 16, 2009Publication date: October 22, 2009Inventors: Gary Ramsey, Christopher Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert, Mark Hanson
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Publication number: 20090039740Abstract: Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy to a corresponding electromagnet of the plurality of electromagnets.Type: ApplicationFiled: October 21, 2008Publication date: February 12, 2009Inventors: Christopher K. Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert
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Patent number: 7471022Abstract: Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy to a corresponding electromagnet of the plurality of electromagnets.Type: GrantFiled: September 22, 2006Date of Patent: December 30, 2008Inventors: Christopher K. Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert
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Publication number: 20080073993Abstract: Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy to a corresponding electromagnet of the plurality of electromagnets.Type: ApplicationFiled: September 22, 2006Publication date: March 27, 2008Inventors: Christopher K. Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert
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Patent number: 7250734Abstract: Certain exemplary embodiments can provide a switched reluctance machine, comprising a rotor; and a stator encircling said rotor and comprising a plurality of radially distributed stator poles, each of said stator poles comprising a set of coils, each set of coils comprising: a phase coil adapted to be switched to affect a rotation of said rotor; and a field excitation coil adapted to, while said rotor is rotating, generate a magnetic field from a received excitation current.Type: GrantFiled: May 27, 2004Date of Patent: July 31, 2007Assignee: Synchrony, Inc.Inventors: Victor Iannello, Robert Jett Field, Christopher K. Sortore
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Patent number: 7250704Abstract: Certain exemplary embodiments can provide an electrical coil for an electromagnetic machine, said coil comprising: a first electrically conductive winding wound about a central axis in a first spiral, said first winding defining a first winding width and a first winding thickness; a first electrically insulating tape wound about the central axis in a second spiral, said first tape defining a first tape width and a first tape thickness, said first tape located width-wise adjacent said first winding; and a corrosion-resistant shell encasing said first spiral and said second spiral.Type: GrantFiled: August 6, 2004Date of Patent: July 31, 2007Assignee: Synchrony, Inc.Inventors: Christopher K. Sortore, Victor Iannello, Robert Jett Field
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Patent number: 7235986Abstract: At least one exemplary embodiment of the present invention includes a capacitive sensing system, comprising a sensing conductor coupleable to a grounded target by a gap capacitance Cd, said grounded target separated from said sensing conductor by a gap having a width. The capacitive sensing system also comprises a circuit connected to said sensing conductor, an input signal having an input frequency fosc provided to said circuit through an input resistance Rd, an output signal of said circuit having an output voltage varying linearly with the width of the gap when the impedance of the gap capacitance 1/(2?foscCd) approaches or exceeds the input resistance Rd.Type: GrantFiled: January 30, 2006Date of Patent: June 26, 2007Inventors: Victor Iannello, Robert Jett Field
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Patent number: 7005864Abstract: At least one exemplary embodiment of the present invention includes a capacitive sensing system, comprising a sensing conductor coupleable to a grounded target by a gap capacitance Cd, said grounded target separated from said sensing conductor by a gap having a width. The capacitive sensing system also comprises a circuit connected to said sensing conductor, an input signal having an input frequency fosc provided to said circuit through an input resistance Rd, an output signal of said circuit having an output voltage varying linearly with the width of the gap when the impedance of the gap capacitance 1/(2?foscCd) approaches or exceeds the input resistance Rd.Type: GrantFiled: October 21, 2002Date of Patent: February 28, 2006Assignee: Synchrony, Inc.Inventors: Victor Iannello, Robert Jett Field
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Publication number: 20040075442Abstract: At least one exemplary embodiment of the present invention includes a capacitive sensing system, comprising a sensing conductor coupleable to a grounded target by a gap capacitance Cd, said grounded target separated from said sensing conductor by a gap having a width. The capacitive sensing system also comprises a circuit connected to said sensing conductor, an input signal having an input frequency fosc provided to said circuit through an input resistance Rd, an output signal of said circuit having an output voltage varying linearly with the width of the gap when the impedance of the gap capacitance 1/(2&pgr;foscCd) approaches or exceeds the input resistance Rd. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope.Type: ApplicationFiled: October 21, 2002Publication date: April 22, 2004Inventors: Victor Iannello, Robert Jett Field