Patents by Inventor John Garside
John Garside 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: 11521844Abstract: An ion confinement device (2) comprising: a plurality of electrodes arranged and configured for confining ions when an AC or RF voltage is applied thereto; and at least one inductive ballast (10a,10b), each ballast connected to at least some of said electrodes so as to form a resonator circuit therewith.Type: GrantFiled: March 11, 2019Date of Patent: December 6, 2022Assignee: Micromass UK LimitedInventors: John Garside, Kenneth Worthington
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Patent number: 10942234Abstract: A cryogenic refrigeration system is provided having particular application in cooling a Magnetic Resonance Imaging system. The cryogenic refrigeration system comprises a conduit arranged as a cooling circuit through which a coolant fluid is pumped, the conduit being in thermal communication with a least one cooled stage for cooling the coolant fluid to a first temperature, and wherein the conduit comprises a cryotrap in communication with the coolant fluid, the cryotrap being operable to remove contaminants from the coolant fluid by cryogenic pumping. The conduit further comprises a flow impedance for cooling the coolant fluid to a second temperature lower than the first temperature, and a hydrogen filter upstream of the flow impedance and in communication with the coolant fluid, the hydrogen filter being cooled to a temperature below the freezing point of hydrogen in the coolant fluid and operable to remove contaminant hydrogen from the coolant fluid.Type: GrantFiled: April 19, 2013Date of Patent: March 9, 2021Assignee: OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITEDInventors: John Garside, Timothy John Foster
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Publication number: 20200411302Abstract: An ion confinement device (2) comprising: a plurality of electrodes arranged and configured for confining ions when an AC or RF voltage is applied thereto; and at least one inductive ballast (10a,10b), each ballast connected to at least some of said electrodes so as to form a resonator circuit therewith.Type: ApplicationFiled: March 11, 2019Publication date: December 31, 2020Applicant: Micromass UK LimitedInventors: John Garside, Kenneth Worthington
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Patent number: 10473375Abstract: Apparatus for controlling a cryogenic cooling system is described. A supply gas line (3A) and a return gas line (3B) are provided which are coupled to a compressor (1) and to a mechanical refrigerator (2) via a coupling element (4). The coupling element is in gaseous communication with the supply (2A) and return gas lines and supplies gas to the mechanical refrigerator (2). The pressure of the supplied gas is modulated by the coupling element in a cyclical manner. A pressure sensing apparatus (6) monitors the pressure in at least one of the supply and return gas lines. A control system (5) is used to modulate the frequency of the cyclical gas pressure supplied by the coupling element in accordance with the pressure monitored by the pressure sensing apparatus. An associated method of controlling such a system is also described.Type: GrantFiled: September 27, 2012Date of Patent: November 12, 2019Assignee: Oxford Instruments Nanotechnology Tools LimitedInventors: John Garside, Matthias Buehler, Daniels Tortorella, Xing Yuan
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Patent number: 10258253Abstract: A cryogenic cooling apparatus comprises a supply gas line and a return gas line adapted to be coupled to a compressor. A coupling element is positioned in gaseous communication with the supply and return gas lines, the coupling element being adapted in use to supply gas to a mechanical refrigerator so that the pressure of said supplied gas is modulated by the coupling element in a cyclical manner. A sensing system is used to monitor the operational state of the mechanical refrigerator and a control system modulates the frequency of the cyclical gas pressure supplied by the coupling element in accordance with the monitored operational state. The mechanical refrigerator has a first cooled stage and a second cooled stage, the second cooled stage being adapted to be coupled thermally with target apparatus to be cooled.Type: GrantFiled: April 19, 2013Date of Patent: April 16, 2019Assignee: Oxford Instruments Nanotechnology Tools LimitedInventor: John Garside
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Patent number: 10162023Abstract: A pulse tube refrigerator (PTR) comprising a pedestal head and a regenerator tube assembly is provided having particular application in cooling a Magnetic Resonance Imaging system. The PTR comprises a pedestal head and at least one cooled stage, the at least one cooled stage being mounted to a distal end, with respect to the pedestal head, of each of an associated regenerator tube and an associated pulse tube, the associated regenerator tube and associated pulse tube together providing pressurized coolant gas to the at least one cooled stage, wherein the associated regenerator tube and the associated pulse tube are elongate along substantially parallel axes; and further arranged, wherein, the displacements of the distal ends of each of the associated regenerator tube and the associated pulse tube in response to the cyclical changes in coolant pressure, are substantially the same when the pulse tube refrigerator is in use.Type: GrantFiled: April 19, 2013Date of Patent: December 25, 2018Assignee: OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITEDInventors: Matthias Buehler, Theo Hertrich, John Garside, Dieter Jedamzik
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Patent number: 10139138Abstract: An assembly for operating a cryocooler pedestal is provided. The assembly is operable when in use to provide a cryocooler pedestal with cyclical gaseous connection to high pressure and low pressure gas supply lines, and has a return conduit through which gas is caused to flow from the cryocooler pedestal into the low pressure supply line. The assembly further comprises a dispersion chamber adjacent the return conduit and in flow communication therewith through a plurality of orifices so as to reduce acoustic noise. The assembly has particular application in cooling a Magnetic Resonance Imaging system.Type: GrantFiled: April 29, 2013Date of Patent: November 27, 2018Assignee: OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITEDInventors: John Garside, Matthias Buehler, Dieter Jedamzik
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Publication number: 20150196221Abstract: A cryogenic cooling apparatus comprises a supply gas line and a return gas line adapted to be coupled to a compressor. A coupling element is positioned in gaseous communication with the supply and return gas lines, the coupling element being adapted in use to supply gas to a mechanical refrigerator so that the pressure of said supplied gas is modulated by the coupling element in a cyclical manner. A sensing system is used to monitor the operational state of the mechanical refrigerator and a control system modulates the frequency of the cyclical gas pressure supplied by the coupling element in accordance with the monitored operational state. The mechanical refrigerator has a first cooled stage and a second cooled stage, the second cooled stage being adapted to be coupled thermally with target apparatus to be cooled.Type: ApplicationFiled: April 19, 2013Publication date: July 16, 2015Inventor: John Garside
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Publication number: 20150153427Abstract: A cryogenic refrigeration system is provided having particular application in cooling a Magnetic Resonance Imaging system. The cryogenic refrigeration system comprises a conduit arranged as a cooling circuit through which a coolant fluid is pumped, the conduit being in thermal communication with a least one cooled stage for cooling the coolant fluid to a first temperature, and wherein the conduit comprises a cryotrap in communication with the coolant fluid, the cryotrap being operable to remove contaminants from the coolant fluid by cryogenic pumping. The conduit further comprises a flow impedance for cooling the coolant fluid to a second temperature lower than the first temperature, and a hydrogen filter upstream of the flow impedance and in communication with the coolant fluid, the hydrogen filter being cooled to a temperature below the freezing point of hydrogen in the coolant fluid and operable to remove contaminant hydrogen from the coolant fluid.Type: ApplicationFiled: April 19, 2013Publication date: June 4, 2015Applicant: Oxford Instruments Nanotechnology Tools LimitedInventors: John Garside, Timothy John Foster
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Publication number: 20150108980Abstract: A pulse tube refrigerator (PTR) comprising a pedestal head and a regenerator tube assembly is provided having particular application in cooling a Magnetic Resonance Imaging system. The PTR comprises a pedestal head and at least one cooled stage, the at least one cooled stage being mounted to a distal end, with respect to the pedestal head, of each of an associated regenerator tube and an associated pulse tube, the associated regenerator tube and associated pulse tube together providing pressurised coolant gas to the at least one cooled stage, wherein the associated regenerator tube and the associated pulse tube are elongate along substantially parallel axes; and further arranged, wherein, the displacements of the distal ends of each of the associated regenerator tube and the associated pulse tube in response to the cyclical changes in coolant pressure, are substantially the same when the pulse tube refrigerator is in use.Type: ApplicationFiled: April 19, 2013Publication date: April 23, 2015Inventors: Matthias Buehler, Theo Hertrich, John Garside, Dieter Jedamzik
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Publication number: 20150084633Abstract: An assembly for operating a cryocooler pedestal is provided. The assembly is operable when in use to provide a cryocooler pedestal with cyclical gaseous connection to high pressure and low pressure gas supply lines, and has a return conduit through which gas is caused to flow from the cryocooler pedestal into the low pressure supply line. The assembly further comprises a dispersion chamber adjacent the return conduit and in flow communication therewith through a plurality of orifices so as to reduce acoustic noise. The assembly has particular application in cooling a Magnetic Resonance Imaging system.Type: ApplicationFiled: April 29, 2013Publication date: March 26, 2015Inventors: John Garside, Matthias Buehler, Dieter Jedamzik
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Publication number: 20140245757Abstract: Apparatus for controlling a cryogenic cooling system is described. A supply gas line (3A) and a return gas line (3B) are provided which are coupled to a compressor (1) and to a mechanical refrigerator (2) via a coupling element (4). The coupling element is in gaseous communication with the supply (2A) and return gas lines and supplies gas to the mechanical refrigerator (2). The pressure of the supplied gas is modulated by the coupling element in a cyclical manner. A pressure sensing apparatus (6) monitors the pressure in at least one of the supply and return gas lines. A control system (5) is used to modulate the frequency of the cyclical gas pressure supplied by the coupling element in accordance with the pressure monitored by the pressure sensing apparatus. An associated method of controlling such a system is also described.Type: ApplicationFiled: September 27, 2012Publication date: September 4, 2014Applicant: Oxford Instruments Nanotechnology Tools LimitedInventors: John Garside, Matthias Buehler, Daniels Tortorella, Xing Yuan
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Publication number: 20120102975Abstract: A cryogen free cooling apparatus comprises at least one heat radiation shield (54) surrounding a working region (20) and located in a vacuum chamber (4). A cryogen free cooling system has a cooling stage coupled to the heat radiation shield (54). Aligned apertures (56,58) are provided in the heat radiation shield and vacuum chamber walls. Sample loading apparatus has a sample holding device (2) attached to one or more elongate probes (3) for inserting the sample holding device through the aligned apertures (56,58) to the working region (20); and a thermal connector enables the sample holding device to be releasably coupled for heat conduction via said connector to a cold body or cold bodies within the vacuum chamber so as to pre-cool a sample on or in the sample holding device.Type: ApplicationFiled: March 15, 2010Publication date: May 3, 2012Applicant: Oxford Instruments Nanotechnology Tools Ltd.Inventors: John Garside, Simon Kingley, Gavin Crowther, Matthias Buehler, Doreen Wernicke