Calvert, GB
Alan H. Calvert, Tyne GB
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20080261917 | Isoindolin-1-One Derivatives - A compound of formula | 10-23-2008 |
Hilary Alan Calvert, Newcastle Upon Tyne GB
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20080242664 | DNA-PK INHIBITORS - A compound of formula I: | 10-02-2008 |
Jack Edmund Calvert, Richmond-Surrey GB
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20150205185 | PHOTOGRAPHIC LIGHT DIFFUSION BOX AND APPARATUS FOR MOUNTING THE BOX TO VARIOUS LIGHT SOURCES - A photographic lighting apparatus ( | 07-23-2015 |
Michael Andrew Calvert, Feniscowles, Blackburn, Lancashire GB
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20160086468 | IMPROVEMENTS IN AND RELATING TO ASPIRATING SMOKE DETECTORS - Improvements in and Relating to Aspirating Smoke Detectors Disclosed is an aspirating smoke detection system comprising: at least two different types of detector; and a processor operable to receive signals from the at least two different types of detector, and to determine an alarm status, wherein the alarm status is one of: an all clear status; a critical status; and a status intermediate between the all clear status and the critical status. | 03-24-2016 |
Michael Ernest Calvert, Durham GB
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20100275382 | LAUNDRY FORMULATIONS AND METHOD OF CLEANING - Textiles are simultaneously cleaned and conditioned in aqueous laundry cleaning using detergent surfactant and non-ionic fatty amino-amide/ester fabric conditioner. The conditioner particularly includes compound(s) of the formulae (IIa), to (IId), (III), (IV) and/or (V): Formula R | 11-04-2010 |
Patrick James Calvert, York GB
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20110048544 | SLUG MITIGATION - A method and apparatus for mitigating slug formation in a multiphase fluid stream that is flowing through a conduit wherein the conduit comprises a first portion and a second portion which is upwardly inclined to the first portion and wherein the multiphase fluid stream comprises a gaseous phase and a liquid phase, the method comprising the steps of: (a) determining the pressure in the conduit upstream of a slugging zone; (b) determining the pressure in the conduit downstream of the slugging zone; (c) determining the actual pressure difference across the slugging zone by subtracting the downstream pressure from step (b) from the upstream pressure from step (a); (d) determining the error between a target pressure difference and the actual pressure difference; (e) producing a signal comprising a first component which is proportional to the error and a second component which is proportional to the rate of change of the error over time; and (f) using the signal produced in step (e) to control the position of an adjustable choke valve located downstream of the slugging zone so as to stabilise variations arising in the actual pressure difference over time. | 03-03-2011 |
20110087476 | METHOD AND APPARATUS FOR CONFIGURING OIL AND/OR GAS PRODUCTION SYSTEM - Embodiments of the invention identify a plurality of operating points for oil and/or gas producing systems, each operating point being characterised by a set of operating parameters which can be used to control components of the actual oil and/or gas producing system. These generated operating points may be collectively presented in a graphical manner to an operator of the oil and/or gas producing system, who can systemically configure the components of the oil and/or gas producing system to move, in an informal manner, through a path of operating points in order to reach what appears from the generated operating point data to be an optimal operating region. The oil and/or gas producing system may also be referred to as a hydrocarbon producing system. | 04-14-2011 |
20130220427 | SLUG MITIGATION - A method and apparatus for mitigating slug formation in a multiphase fluid stream that is flowing through a conduit wherein the conduit comprises a first portion and a second portion which is upwardly inclined to the first portion and wherein the multiphase fluid stream comprises a gaseous phase and a liquid phase, the method comprising the steps of: (a) determining the pressure in the conduit upstream of a slugging zone; (b) determining the pressure in the conduit downstream of the slugging zone; (c) determining the actual pressure difference across the slugging zone by subtracting the downstream pressure from step (b) from the upstream pressure from step (a); (d) determining the error between a target pressure difference and the actual pressure difference; (e) producing a signal comprising a first component which is proportional to the error and a second component which is proportional to the rate of change of the error over time; and (f) using the signal produced in step (e) to control the position of an adjustable choke valve located downstream of the slugging zone so as to stabilise variations arising in the actual pressure difference over time. | 08-29-2013 |
Simon Calvert, Oxfordshire GB
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20140274722 | SUPERCONDUCTING MAGNETS WITH THERMAL RADIATION SHIELDS - A cylindrical superconducting magnet has a number of axially-aligned annular coils of superconducting wire, arranged for cooling by thermal conduction through a cooled surface in mechanical contact with the coils. The coils are provided with a cryogenic radiation shield located between respective radially inner surfaces of the coils and respective axes of the coils. The cryogenic radiation shield is formed of a metal layer in thermal contact with the cooled surface. | 09-18-2014 |
Simon James Calvert, Witney GB
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20110291782 | SOLENOIDAL MAGNETS HAVING SUPPORTED OUTER COILS - In a solenoidal electromagnet arrangement for a magnetic resonance imaging system, annular inner coils and annular end coils are provided, all concentrically aligned about an axis, the end coils being placed at axial extremities, axially outside of the inner coils. A pair of annular outer coils are provided concentrically aligned about the axis. An arrangement is provided retaining the pair of outer coils against an axial force urging the outer coils away from one another. The arrangement comprises strap elements which extend around a radially inner surface, a radially outer surface and an axially outer surface of each outer coil in certain circumferential locations. Each strap element on one of the outer coils is linked to a corresponding strap element on the other outer coil of the pair by a tensile member. | 12-01-2011 |
20120075045 | HOLLOW CYLINDRICAL THERMAL SHIELD FOR A TUBULAR CRYOGENICALLY COOLED SUPERCONDUCTING MAGNET - A hollow cylindrical thermal shield for a tubular cryogenically cooled superconducting magnet, has a first axis, an inner cylindrical tube having an axis aligned with the first axis, an outer cylindrical tube of greater diameter than the diameter of the inner cylindrical tube, having an axis aligned with the first axis, and annular end pieces, joining the inner cylindrical tube and the outer cylindrical tube to form an enclosure. The hollow cylindrical thermal shield further has a cylindrical stiffener, extending axially at least part of the axial length of the inner cylindrical tube, the stiffener being joined at intervals to the inner cylindrical tube, thereby to improve the mechanical rigidity of the inner cylindrical tube. | 03-29-2012 |
20120202697 | STIFFENED GRADIENT COIL - In a cylindrical superconducting magnet system for magnetic resonance imaging, primary superconducting coils are positioned within an outer vacuum chamber. A thermal radiation shield surrounds the primary superconducting coils. A gradient coil assembly is axially aligned with the primary superconducting coils. A mechanical support assembly is radially positioned outside of the primary superconducting coils and is mechanically attached to the gradient coil assembly by mechanical attachments which pass through through-holes through the outer vacuum chamber and the thermal radiation shield. | 08-09-2012 |
Simon James Calvert, Oxon GB
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20090101325 | METHOD AND APPARATUS FOR COOLING SUPERCONDUCTIVE JOINTS - In a method and apparatus for joining a number of superconductive cables to establish electrical connection therebetween, a cup-like member having a base, a sidewall, and an opening to receive electrically conductive ends of said cables is provided. The base of the cup-like member is attached to a holder device. The holder device is attached to a cryogenically cooled surface. The ends of the superconductive cables are connected together within the cup-like member. | 04-23-2009 |
20090128270 | METHOD OF MANUFACTURING A SOLENOIDAL MAGNET - A method of manufacturing a solenoidal magnet structure, includes the step of providing a collapsible accurate mold in which to wind the coils winding wire into defined positions in the mold, placing a mechanical support structure over the coils so wound, impregnating the coils and the mechanical support structure with a thermosetting resin, allowing the thermosetting resin to harden, and collapsing the mold and removing the resultant solenoidal magnet structure formed by the resin impregnated coils and the mechanical support structure from the mold as a single solid piece. | 05-21-2009 |
Simon James Calvert, Yarnton GB
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20130176090 | SOLENOIDAL MAGNETS COMPOSED OF MULTIPLE AXIALLY ALIGNED COILS - A magnet assembly has a number of axially-aligned coils, the radial mid-point of each coil being axially-aligned with a portion of a radial extent of an adjacent coil in the assembly. Compression blocks are provided between adjacent coils at circumferential intervals, to retain the coils in fixed relative positions. | 07-11-2013 |
Simon James Calvert, Kidlington GB
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20140038828 | JOINTS WITH VERY LOW RESISTANCE BETWEEN SUPERCONDUCTING WIRES AND METHODS FOR MAKING SUCH JOINTS - In a method or joint for joining first and second semiconductor wires, each comprising a number of filaments which each comprise a superconductive core within a respective sheath, the filaments being embedded within a matrix and wherein the superconductive cores comprise magnesium diboride and the sheaths comprise niobium, over a certain length a matrix is removed to expose the filaments. The exposed filaments are immersed in molten tin such that the nobium of the sheaths is converted to niobium-tin throughout a thickness of the sheaths. A superconductive path is provided between the superconductive cores of filaments of the first wire through the niobium-tin sheaths of the filaments to the superconductive cores of the second wire. | 02-06-2014 |
Simon James Calvert, Oxfordshire GB
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20140107468 | COMBINED MRI AND RADIATION THERAPY EQUIPMENT - In a combined MRI and radiation therapy system, a magnet structure and radiation therapy equipment are provided. The magnet structure comprises a single substantially cylindrical field coil structure comprising a number of superconducting coils joined by a support structure and extending axially of a central region. An outer vacuum chamber encloses the field coil structure in an evacuated volume. A cooling arrangement comprising cooling tubes is in thermal contact with the superconducting coils and receives a cryogen flowing through the cooling tubes. The radiation therapy equipment comprises a gamma radiation source rotatable about an axis of the field coil structure to direct a radiation beam substantially radially through the field coil structure. Parts of the field coil structure and the outer vacuum chamber are transparent to radiation emitted by the gamma radiation source whereby the radiation beam is directed through the field coil structure and the outer vacuum chamber without substantial interference. | 04-17-2014 |
20140274721 | FORCE-COMPENSATED GRADIENT COIL - A cylindrical superconducting magnet system for use in magnetic resonance imaging has axially aligned primary superconducting coils that are situated within an outer vacuum chamber (OVC). A thermal radiation shield surrounds the primary superconducting coils within the OVC. A primary gradient coil assembly is axially aligned with the primary superconducting coils and is situated radially within the primary superconducting coils. The cylindrical superconducting magnetic system also includes a secondary gradient coil assembly, that is radially situated outside of the primary superconducting coils and that is mechanically attached to the primary gradient coil assembly. | 09-18-2014 |
20150369888 | METHOD AND APPARATUS FOR REDUCTION OF GRADIENT COIL VIBRATION IN MRI SYSTEMS - A cylindrical superconducting magnet system for use in magnetic resonance imaging has axially aligned primary superconducting coils surrounded by a thermal radiation shield within a vacuum vessel. A gradient coil assembly is axially aligned with and located radially within the primary superconducting coils. An assembly support is, radially positioned outside of the primary superconducting coils and is mechanically attached to the gradient coil assembly at a number of locations around the circumference of the gradient coil assembly, and at a number of axial locations along the gradient coil assembly, by radially-directed mechanical attachments that pass though through-holes through the vacuum vessel and the thermal radiation shield, and mechanically isolated from the vacuum vessel. At least some of the mechanical attachments each comprise an active force transducer arranged to provide impulses of force onto a surface of the gradient coil assembly to oppose vibrations of the gradient coil assembly. | 12-24-2015 |
Stephen R. Calvert, Bath GB
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20090059790 | CELLULAR COMMUNICATION SYSTEM, APPARATUS AND METHOD FOR MANAGEMENT OF BACKHAUL RESOURCES - A communication network element comprises traffic scheduler logic capable of scheduling transmission of a first category of queued traffic across a backhaul interface in accordance with a rate control value. The communication network element further comprises traffic manager logic capable of scheduling transmission of a second category of queued traffic across the backhaul interface in accordance with a determined backhaul bandwidth allocation, the backhaul bandwidth allocation being based on a determination of available bandwidth across the backhaul interface not required for scheduled first category traffic. | 03-05-2009 |
20110211478 | Cellular Communication System, Apparatus and Method for Management of Backhaul Resources - A communication network element comprises traffic scheduler logic capable of scheduling transmission of a first category of queued traffic across a backhaul interface in accordance with a rate control value. The communication network element further comprises traffic manager logic capable of scheduling transmission of a second category of queued traffic across the backhaul interface in accordance with a determined backhaul bandwidth allocation, the backhaul bandwidth allocation being based on a determination of available bandwidth across the backhaul interface not required for scheduled first category traffic. | 09-01-2011 |
William Calvert, Ewhurst GB
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20120324150 | SYSTEM AND METHOD OF RECOVERING DATA IN A FLASH STORAGE SYSTEM - A data storage method, comprising, receiving host data to be written to a plurality of flash storage devices, allocating the host data to one or more data units of a plurality of data units, allocating pad data to one or more data units of the plurality of data units that have not been filled with host data and generating redundant data in a redundant data unit based on the plurality of data units. In certain aspects, the method further comprises steps for writing the plurality of data units and the redundant data unit to a stripe across the plurality of flash storage devices, wherein each of the plurality of data units and the redundant data unit is written in the respective flash storage devices at a common physical address. | 12-20-2012 |
William Calvert, Cranleigh GB
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20100042901 | SUPPORTING VARIABLE SECTOR SIZES IN FLASH STORAGE DEVICES - A flash storage device comprises a plurality of data blocks, each data block comprising a plurality of data segments, a system memory, and a controller. The controller is configured to cache in the system memory a plurality of data sectors to be written, to write to a first one of the plurality of data segments a first one of the plurality of data sectors, to write to the first one of the plurality of data segments a first portion of a second one of the plurality of data sectors, and to write to a second one of the plurality of data segments a second portion of the second one of the plurality of data sectors. | 02-18-2010 |
20120239851 | PRIORITIZED ERASURE OF DATA BLOCKS IN A FLASH STORAGE DEVICE - Methods and systems for the prioritized erasure of data blocks in a flash storage device are provided. A data block in the flash storage device is selected for erasure based upon the number of valid data segments therein, thereby minimizing the number of data segments that are carried over to another data block before erasing the selected data block. The overhead of write operations in the flash storage device is therefore greatly reduced, and the overall performance thereof greatly increased. A method for managing memory operations in a flash storage device having a plurality of data blocks comprises the steps of selecting one of the plurality of data blocks for erasure based upon a number of valid data segments therein, and erasing the selected one of the plurality of data blocks. | 09-20-2012 |
20120239852 | HIGH SPEED INPUT/OUTPUT PERFORMANCE IN SOLID STATE DEVICES - A method of transferring data in a flash storage device comprising a random access memory and a plurality of channels of a flash array is provided. The method comprises receiving a plurality of data segments from a host system, storing the plurality of data segments in the random access memory, allocating the plurality of data segments among the plurality of channels of the flash array, and writing the allocated data segments from the random access memory to the respective channels of the flash array. | 09-20-2012 |
20150254005 | HIGH SPEED INPUT/OUTPUT PERFORMANCE IN SOLID STATE DEVICES - A method of transferring data in a flash storage device is provided. A plurality of data segments for transfer between a memory buffer and a plurality of flash memory devices via a plurality of flash memory interfaces is associated with a plurality of respective memory commands. The plurality of memory commands are allocated among the plurality of flash memory interfaces, with each respective memory command being queued at a respective memory interface for transfer of a respective data segment associated with the respective memory command. The plurality of data segments are transferred between the memory buffer and the plurality of flash memory devices based on the plurality of memory commands, with each respective data segment being transferred via the memory interface to which the memory command associated with the respective data segment is queued. The data segments are transferred sequentially in an order corresponding to the queued memory commands. | 09-10-2015 |