Patents by Inventor Robert H. Jackson
Robert H. Jackson 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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Publication number: 20220099634Abstract: Magnetic couplers and sample introduction devices including them are described. In certain configurations, a sample introduction device can include a magnetic coupler that can be used to hold down a sampling device to permit introduction of an analyte sample from the sampling device to an instrument or another component. Systems including the magnetic couplers, and methods and devices to produce them are also described.Type: ApplicationFiled: September 30, 2020Publication date: March 31, 2022Inventors: Benjamin J. Black, Robert H. Jackson, III
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Patent number: 9859105Abstract: A second gate in an Ion Mobility Spectrometer is used to select or block different time windows of the ion mobility spectrum. A second gate in the Ion Mobility Mass Spectrometer is used to modulate peak intensities in the IMS spectrum, allowing each peak in the IMS spectrum to be unambiguously matched with its set of fragment ions in a subsequent MS-MS mass spectrum.Type: GrantFiled: June 17, 2015Date of Patent: January 2, 2018Assignee: Excellims CorporationInventors: Adam Michael Graichen, Robert H Jackson, Mark A Osgood, Ching Wu, Jianglin Wu
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Publication number: 20160005581Abstract: A second gate in an Ion Mobility Spectrometer is used to select or block different time windows of the ion mobility spectrum. A second gate in the Ion Mobility Mass Spectrometer is used to modulate peak intensities in the IMS spectrum, allowing each peak in the IMS spectrum to be unambiguously matched with its set of fragment ions in a subsequent MS-MS mass spectrum.Type: ApplicationFiled: June 17, 2015Publication date: January 7, 2016Inventors: Adam Michael Graichen, Robert H. Jackson, Mark A. Osgood, Ching Wu, Jianglin Wu
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Patent number: 7569835Abstract: The present invention relates generally to grids for gating a stream of charged particles and methods for manufacturing the same. In one embodiment, the present invention relates to a Bradbury-Nielson gate having transmission line grid elements. In one embodiment is a feed structure for a gating grid where a drive source is coupled to a feeding transmission line with the same geometry as the chopper and continues with the same geometry to a termination transmission line. Also included is a method for fabricating a gate for charged particles which includes micromachining at least two gate elements from at least one wafer, wherein each gate element includes at least one grid element; metalizing the grid elements; and assembling the gate elements such that the grid elements of the gate elements are interleaved, thereby forming a Bradbury Nielson gate.Type: GrantFiled: March 6, 2007Date of Patent: August 4, 2009Assignees: Stillwater Scientific Instruments, University of MaineInventors: Brian G. Frederick, Lawrence J. LeGore, Rosemary Smith, Scott Collins, Robert H. Jackson, III
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Patent number: 7403867Abstract: A spectroscopy instrument that uses spectra produced from random binary sequence modulated data. Statistical estimation techniques are used to achieve resolution enhancement, while properly accounting for the Poisson noise distribution and other artifacts introduced by a modulator or “chopper” or other system components. A resolution similar to that of modern spectrometers can be achieved. Both static and dynamic behaviors are theoretically or measured experimentally accounted for in the model as determined. In one embodiment, the finite penetration of the field beyond the plane of the chopper leads to non-ideal chopper response, which is characterized in terms of an “energy corruption” effect and a lead or lag in the time at which the beam responds to the chopper potential.Type: GrantFiled: March 22, 2006Date of Patent: July 22, 2008Assignees: University of Maine, Stillwater Scientific Instruments, Spectrum Square AssociatesInventors: Lawrence J. LeGore, Robert H. Jackson, III, Zhong Yu Yang, Linda K. DeNoyer, Peter H. Kleban, Brian G. Frederick
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Patent number: 7120998Abstract: A technique for providing a grid for a gate such as utilized in gating a stream of ions or other particles in a spectrometer instrument. The grid of wires may, for example, be a so-called Bradbury-Nielson Gate that consists of a set of two electrically isolated sets of equally spaced wires that lie substantially in the same plane and alternate in potential. The method utilized to provide is to first fabricate a frame of an insulating substrate having a hole and depositing metal film patterns such that conductive portions are formed on either side of the hole. Conductive portions on either side form a series of terminating pads on the portion of the substrate closest to the hole and a bus bar. Grid wires are then formed by stretching a section of wire with desired constant tension across the hole and bonding the ends of the wire to a respective one of the pads on one side and bus bar on the other side. The method provides a rapid, inexpensive way to fabricate such modulating devices.Type: GrantFiled: August 20, 2004Date of Patent: October 17, 2006Assignees: University of Maine, Stillwater Scientific InstrumentsInventors: Nicholas LeCursi, Lawrence J. LeGore, Robert H. Jackson, III, C. Bronson H. Crothers, Peter H. Kleban, Brian G. Frederick
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Patent number: 7031877Abstract: A spectroscopy instrument that uses spectra produced from random binary sequence modulated data. Statistical estimation techniques are used to achieve resolution enhancement, while properly accounting for the Poisson noise distribution and other artifacts introduced by a modulator or “chopper” or other system components. Indeed, a resolution similar to that of modern spectrometers can be achieved with a dramatic performance advantage over conventional, serial detection analyzers. Both static and dynamic behaviors are theoretically or measured experimentally accounted for in the model as determined. In one embodiment, the finite penetration of the field beyond the plane of the chopper leads to non-ideal chopper response, which is characterized in terms of an “energy corruption” effect and a lead or lag in the time at which the beam responds to the chopper potential.Type: GrantFiled: August 23, 2004Date of Patent: April 18, 2006Assignees: University of Maine, Stillwater Scientific Instruments, Spectrum Square Associates, Inc.Inventors: Lawrence J. LeGore, Robert H. Jackson, III, Zhong Yu Yang, Linda K. DeNoyer, Peter H. Kleban, Brian G. Frederick
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Patent number: 6782342Abstract: A spectroscopy instrument that uses spectra produced from random binary sequence modulated data. Statistical estimation techniques are used to achieve resolution enhancement, while properly accounting for the Poisson noise distribution and other artifacts introduced by a modulator or “chopper” or other system components. Indeed, a resolution similar to that of modern spectrometers can be achieved with a dramatic performance advantage over conventional, serial detection analyzers. Both static and dynamic behaviors are theoretically or measured experimentally accounted for in the model as determined. In one embodiment, the finite penetration of the field beyond the plane of the chopper leads to non-ideal chopper response, which is characterized in terms of an “energy corruption” effect and a lead or lag in the time at which the beam responds to the chopper potential.Type: GrantFiled: June 7, 2002Date of Patent: August 24, 2004Assignees: University of Maine, Stillwater Scientific Instruments, Spectrum Square Associates, Inc.Inventors: Lawrence J. LeGore, Robert H. Jackson, III, Zhong Yu Yang, Linda K. DeNoyer, Peter H. Kleban, Brian G. Frederick
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Patent number: 6781120Abstract: A technique for providing a grid for a gate such as utilized in gating a stream of ions or other particles in a spectrometer instrument. The grid of wires may, for example, be a so-called Bradbury-Nielson Gate that consists of a set of two electrically isolated sets of equally spaced wires that lie substantially in the same plane and alternate in potential. The method utilized to provide is to first fabricate a frame of an insulating substrate having a hole and depositing metal film patterns such that conductive portions are formed on either side of the hole. Conductive portions on either side form a series of terminating pads on the portion of the substrate closest to the hole and a bus bar. Grid wires are then formed by stretching a section of wire with desired constant tension across the hole and bonding the ends of the wire to a respective one of the pads on one side and bus bar on the other side. The method provides a rapid, inexpensive way to fabricate such modulating devices.Type: GrantFiled: June 7, 2002Date of Patent: August 24, 2004Assignees: University of Maine, Stillwater Scientific InstrumentsInventors: Nicholas LeCursi, Lawrence J. LeGore, Robert H. Jackson, III, C. Bronson H. Crothers, Peter H. Kleban, Brian G. Frederick
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Patent number: 6592395Abstract: A connector assembly for connecting wire leads of a first cable to corresponding wire leads of a second cable. A terminal housing structure has a first base, and a second base facing opposite to the first base. First pairs of connector terminals are configured to connect with pairs of wire leads of the first cable, and second pairs of connector terminals are configured to connect with pairs of wire leads of the second cable. A wiring board captured between the first and second bases has sets of conductive terminal openings at corresponding locations in the board. The first pairs of connector terminals are mounted on one side of the board in first pairs of terminal openings, and the second pairs of connector terminals are mounted on the opposite side of the board in second pairs of terminal openings which are electrically connected to the first pair of openings. The sets of terminal openings are spaced apart sufficiently to avoid cross-talk between the pairs of connector terminals.Type: GrantFiled: October 3, 2001Date of Patent: July 15, 2003Assignee: Avaya Technology Corp.Inventors: Reed Scott Brown, Robert H. Jackson, Ronald Kohl, Don Terry, Perry K. White, Ronald L. Wild
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Publication number: 20030064622Abstract: A connector assembly for connecting wire leads of a first cable to corresponding wire leads of a second cable. A terminal housing structure has a first base, and a second base facing opposite to the first base. First pairs of connector terminals are configured to connect with pairs of wire leads of the first cable, and second pairs of connector terminals are configured to connect with pairs of wire leads of the second cable. A wiring board captured between the first and second bases has sets of conductive terminal openings at corresponding locations in the board. The first pairs of connector terminals are mounted on one side of the board in first pairs of terminal openings, and the second pairs of connector terminals are mounted on the opposite side of the board in second pairs of terminal openings which are electrically connected to the first pair of openings. The sets of terminal openings are spaced apart sufficiently to avoid cross-talk between the pairs of connector terminals.Type: ApplicationFiled: October 3, 2001Publication date: April 3, 2003Inventors: Reed Scott Brown, Robert H. Jackson, Ronald Kohl, Don Terry, Perry K. White, Ronald L. Wild
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Publication number: 20030055573Abstract: A spectroscopy instrument that uses spectra produced from random binary sequence modulated data. Statistical estimation techniques are used to achieve resolution enhancement, while properly accounting for the Poisson noise distribution and other artifacts introduced by a modulator or “chopper” or other system components. Indeed, a resolution similar to that of modem spectrometers can be achieved with a dramatic performance advantage over conventional, serial detection analyzers. Both static and dynamic behaviors are theoretically or measured experimentally accounted for in the model as determined. In one embodiment, the finite penetration of the field beyond the plane of the chopper leads to non-ideal chopper response, which is characterized in terms of an “energy corruption” effect and a lead or lag in the time at which the beam responds to the chopper potential.Type: ApplicationFiled: June 7, 2002Publication date: March 20, 2003Applicant: Stillwater Scientific InstrumentsInventors: Lawrence J. LeGore, Robert H. Jackson, Zhong Yu Yang, Linda K. DeNoyer, Peter H. Kleban, Brian G. Frederick
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Publication number: 20030048059Abstract: A technique for providing a grid for a gate such as utilized in gating a stream of ions or other particles in a spectrometer instrument. The grid of wires may, for example, be a so-called Bradbury-Nielson Gate that consists of a set of two electrically isolated sets of equally spaced wires that lie substantially in the same plane and alternate in potential. The method utilized to provide is to first fabricate a frame of an insulating substrate having a hole and depositing metal film patterns such that conductive portions are formed on either side of the hole. Conductive portions on either side form a series of terminating pads on the portion of the substrate closest to the hole and a bus bar. Grid wires are then formed by stretching a section of wire with desired constant tension across the hole and bonding the ends of the wire to a respective one of the pads on one side and bus bar on the other side. The method provides a rapid, inexpensive way to fabricate such modulating devices.Type: ApplicationFiled: June 7, 2002Publication date: March 13, 2003Applicant: Stillwater Scientific InstrumentsInventors: Nicholas LeCursi, Lawrence J. LeGore, Robert H. Jackson, C. Bronson H. Crothers, Peter H. Kleban, Brian G. Frederick
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Patent number: 5499255Abstract: An electromagnetic wiggler having a cylindrical member, and a central member disposed axially within the cylindrical member, both of which are formed from alternating cylindrical sections of ferromagnetic and non-ferromagnetic material, each sequential pair of these sections being the length of the wiggler's period .lambda..sub.w. The sequence of sections between the inner and outer members is shifted .lambda..sub.w /2, so that ferromagnetic sections of the outer member are disposed radially opposite non-ferromagnetic sections of the inner member, and vice versa. The resultant radial magnetic flux density in the cylindrical gap between the members is larger and sharper than the flux density for the same wiggler without the central member, permitting higher radiated power output, at higher radiation frequencies, for the same energy of input electron beam.Type: GrantFiled: July 12, 1994Date of Patent: March 12, 1996Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert H. Jackson, Henry P. Freund, Dean E. Pershing, Jose M. Taccetti