Patents by Inventor Andrew A. Davidson

Andrew A. Davidson 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).

  • Publication number: 20130022520
    Abstract: A process for the extraction of uranium compounds from wet-process phosphoric acid includes lowering the iron concentration of the wet-process phosphoric acid and reducing the valency of any remaining ferric iron in the wet-process phosphoric acid to ferrous iron, and then extracting uranium compounds from the wet-process phosphoric acid. The process can include separating a side stream from a feed stream of wet-process phosphoric acid, wherein the side stream has a greater concentration of the uranium compounds than the feed stream by filtration. Extracting uranium compounds from the wet-process phosphoric acid can be by ion exchange process or by solvent extraction.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 24, 2013
    Inventors: Nicholas Warwick Bristow, Mark S. Chalmers, James Andrew Davidson, Bryn Llywelyn Jones, Paul Robert Kucera, Nick Lynn, Peter Douglas Macintosh, Jessica Mary Page, Thomas Charles Pool, Marcus Worsley Richardson, Karin Helene Soldenhoff, Kelvin John Taylor, Colin Wayrauch
  • Publication number: 20130022519
    Abstract: A process for the extraction of uranium compounds from wet-process phosphoric acid includes lowering the iron concentration of the wet-process phosphoric acid and reducing the valency of any remaining ferric iron in the wet-process phosphoric acid to ferrous iron, and then extracting uranium compounds from the wet-process phosphoric acid. The process can include separating a side stream from a feed stream of wet-process phosphoric acid, wherein the side stream has a greater concentration of the uranium compounds than the feed stream by filtration. Extracting uranium compounds from the wet-process phosphoric acid can be by ion exchange process or by solvent extraction.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 24, 2013
    Inventors: Nicholas Warwick Bristow, Mark S. Chalmers, James Andrew Davidson, Bryn Llywelyn Jones, Paul Robert Kucera, Nick Lynn, Peter Douglas Macintosh, Jessica Mary Page, Thomas Charles Pool, Marcus Worsley Richardson, Karin Helene Soldenhoff, Kelvin John Taylor, Colin Wayrauch
  • Publication number: 20130007595
    Abstract: A method and computer system are described for conducting commercial transactions. An enhanced type of XML schema may be used which supports integrity constraints and polymorphism. Schemas are identified by the use of Uniform Resource Names. XML processors residing on transaction servers or trading partner servers parse document instances by retrieving the URNs corresponding to the schemas used to interpret the document. The URNs are converted to location-dependent URIs in order to locate the schemas. URNs are resolved to location-dependent URIs by use of the LDAP protocol. URNs may be converted to LDAP URLs which are used to search LDAP compliant directories. The directories serve as registries for the URI values corresponding to the URNs.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: RED HAT, INC.
    Inventors: Matthew Fuchs, Jari Koistinen, Andrew Davidson
  • Patent number: 8336334
    Abstract: Apparatus, systems and methods for alignment of a glass member for high temperature processing are disclosed. The high temperature processing can, for example, pertain to a slumping process to mold glass into a predetermined shape (e.g., a three-dimensional shape). In one embodiment, a glass slumping system can have a mold and an alignment system that support a glass member to be slumped relative to the mold. The alignment system may have a plurality of alignment members being configured to move away from the glass member as the temperature increases during the slumping process to allow the glass member to bend around the mold without interference.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: December 25, 2012
    Assignee: Apple Inc.
    Inventors: Donald Ross, Adam Stagnaro, Matthew Theobald, Andrew Davidson, Michael Kane Pilliod
  • Patent number: 8266523
    Abstract: A method and computer system are described for conducting commercial transactions. An enhanced type of XML schema may be used which supports integrity constraints and polymorphism. Schemas are identified by the use of Uniform Resource Names. XML processors residing on transaction servers or trading partner servers parse document instances by retrieving the URNs corresponding to the schemas used to interpret the document. The URNs are converted to location-dependent URIs in order to locate the schemas. URNs are resolved to location-dependent URIs by use of the LDAP protocol. URNs may be converted to LDAP URLs which are used to search LDAP compliant directories. The directories serve as registries for the URI values corresponding to the URNs.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: September 11, 2012
    Assignee: Red Hat, Inc.
    Inventors: Matthew Fuchs, Jari Koistinen, Andrew Davidson
  • Patent number: 8226910
    Abstract: A process for the extraction of uranium compounds from wet-process phosphoric acid includes lowering the iron concentration of the wet-process phosphoric acid and reducing the valency of any remaining ferric iron in the wet-process phosphoric acid to ferrous iron, and then extracting uranium compounds from the wet-process phosphoric acid. The process can include separating a side stream from a feed stream of wet-process phosphoric acid, wherein the side stream has a greater concentration of the uranium compounds than the feed stream by filtration. Extracting uranium compounds from the wet-process phosphoric acid can be by ion exchange process or by solvent extraction.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: July 24, 2012
    Assignee: Urtek, LLC
    Inventors: Nicholas Warwick Bristow, Mark S. Chalmers, James Andrew Davidson, Bryn Llywelyn Jones, Paul Robert Kucera, Nick Lynn, Peter Douglas Macintosh, Jessica Mary Page, Thomas Charles Pool, Marcus Worsley Richardson, Karin Helene Soldenhoff, Kelvin John Taylor, Colin Weyrauch
  • Patent number: 8217724
    Abstract: An atomic clock comprises endohedral fullerene systems which provide the standard frequency oscillations. A magnet device applies a magnetic field to the endohedral fullerenes. The applied magnetic field is adjustable. An excitation device both excites each endohedral fullerene system to cause it to undergo transitions which generate the time-keeping oscillations, and also probes the systems such that the oscillations can be measured and the device controlled. A detection device senses the response of the systems induced by the excitation device. The output of the detection device is fed to a controller. The controller produces the atomic clock output, which is the clock signal or frequency standard, and also controls the magnet device and the excitation device.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: July 10, 2012
    Assignee: Isis Innovation Limited
    Inventors: George Andrew Davidson Briggs, Arzhang Ardavan
  • Patent number: 7956756
    Abstract: The present apparatus and method for using the same detects Rapid Eye Movement (REM) in a sleeping mammal and awakens the mammal after the cessation of a specific episode of REM. The system comprises an alarm setting unit for setting a predetermined wakeup time, a data collection unit for collecting physiological data from the mammal over time, a processing unit for determining the occurrence and cessation of REM and for providing a stimulation signal for awakening the mammal within a prescribed window of time before the predetermined wakeup time and after the cessation of REM and after the mammal's nadir in body temperature with respect to time.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: June 7, 2011
    Inventors: Alan Kubey, Andrew Davidson
  • Publication number: 20110081828
    Abstract: A method and an apparatus for shaping an edge at a juncture of two adjoining surfaces of a part. A first surface and a second surface of the part are abraded by contacting a polishing surface of a polishing wheel to the first surface and to the second surface. The polishing surface spins in opposite rotational directions about an axis parallel to the edge when contacting the first and second surfaces respectively. The polishing surface moves at different translational speeds and the polishing wheel spins at different rotational speeds along straight segments and along curved segments of the edge. The shaped edge has a visually smooth and geometrically uniform appearance.
    Type: Application
    Filed: January 26, 2010
    Publication date: April 7, 2011
    Applicant: APPLE INC.
    Inventors: Edward T. Sweet, Roberto Ortega, Andrew Davidson, Simon Lancaster, Thomas Johannessen
  • Publication number: 20110072856
    Abstract: Apparatus, systems and methods for forming complex edges on a glass member through the use of a glass slumping process are disclosed. According to one aspect of the invention, a method of forming a complex edge in a glass forming process includes grinding an edge of a glass member and polishing the edge of the glass member. Grinding the edge of the glass member causes the edge of the glass member to have a first level of complexity. The method also includes performing a slumping process on the glass member. Performing the slumping process causes the edge of the glass member to have a second level of complexity that is more complex than the first level of complexity.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Andrew Davidson, Michael Kane Pilliod, Donald Ross
  • Publication number: 20100316280
    Abstract: Methods and systems for accurately determining dimensional accuracy of a complex three dimensional shape are disclosed. The invention in one respect includes determining at least a non-critical feature and at least a critical feature of the 3-D component, determining a first datum using at least the non-critical feature, aligning the first datum to at least a portion of a reference shape, determining a second datum corresponding to the critical feature subsequent to the aligning, and determining the dimensional accuracy of the 3-D component by comparing the second datum to another portion of the reference shape.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Applicant: APPLE INC.
    Inventors: Simon Lancaster, Andrew Davidson
  • Publication number: 20100259334
    Abstract: An atomic clock comprises endohedral fullerene systems which provide the standard frequency oscillations. A magnet device applies a magnetic field to the endohedral fullerenes. The applied magnetic field is adjustable. An excitation device both excites each endohedral fullerene system to cause it to undergo transitions which generate the time-keeping oscillations, and also probes the systems such that the oscillations can be measured and the device controlled. A detection device senses the response of the systems induced by the excitation device. The output of the detection device is fed to a controller. The controller produces the atomic clock output, which is the clock signal or frequency standard, and also controls the magnet device and the excitation device.
    Type: Application
    Filed: June 27, 2008
    Publication date: October 14, 2010
    Inventors: George Andrew Davidson Briggs, Arzhang Ardavan
  • Publication number: 20100229602
    Abstract: Apparatus, systems and methods for alignment of a glass member for high temperature processing are disclosed. The high temperature processing can, for example, pertain to a slumping process to mold glass into a predetermined shape (e.g., a three-dimensional shape). In one embodiment, a glass slumping system can have a mold and an alignment system that support a glass member to be slumped relative to the mold. The alignment system may have a plurality of alignment members being configured to move away from the glass member as the temperature increases during the slumping process to allow the glass member to bend around the mold without interference.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 16, 2010
    Inventors: Donald Ross, Adam Stagnaro, Matthew Theobald, Andrew Davidson, Michael Kane Pilliod
  • Patent number: 7762338
    Abstract: An assembly for landing a tubing hanger in a subsea well includes a riser extending from a subsea wellhead assembly to a vessel at the surface of the sea. A tubing hanger having a string of tubing suspended therefrom is lowered through the riser with a string of conduit, and the tubing hanger lands within the subsea wellhead assembly. A sensor is positioned adjacent the subsea wellhead assembly to monitor the axial position of the tubing hanger within the subsea wellhead assembly. The sensor also communicates the axial position of the tubing hanger to the surface. A locking mechanism is carried by the tubing hanger and is selectively operable to lock the tubing hanger in place relative to the subsea wellhead assembly when the tubing hanger reaches a predetermined axial location.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: July 27, 2010
    Assignee: Vetco Gray Inc.
    Inventors: Stephen P. Fenton, Lars-Petter Sollie, Andrew Davidson
  • Patent number: 7747546
    Abstract: An information register stores information represented by the states of endohedral fullerenes in a nanotube. Possible states are spin-states or morphological states, such as endohedral species having intrinsic or induced electric dipole moment or characteristic electric polarizility. The states of successive endohedral fullerenes along the nanotube are coupled by interaction mediated by electrons in the nanotube. The register can be used as part of a quantum computer or a classical computer.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: June 29, 2010
    Assignee: Isis Innovation Limited
    Inventor: George Andrew Davidson Briggs
  • Publication number: 20100028226
    Abstract: A process for the extraction of uranium compounds from wet-process phosphoric acid includes lowering the iron concentration of the wet-process phosphoric acid and reducing the valency of any remaining ferric iron in the wet-process phosphoric acid to ferrous iron, and then extracting uranium compounds from the wet-process phosphoric acid. The process can include separating a side stream from a feed stream of wet-process phosphoric acid, wherein the side stream has a greater concentration of the uranium compounds than the feed stream by filtration. Extracting uranium compounds from the wet-process phosphoric acid can be by ion exchange process or by solvent extraction.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 4, 2010
    Inventors: Nicholas Warwick Bristow, Mark S. Chalmers, James Andrew Davidson, Bryn Llywelyn Jones, Paul Robert Kucera, Nick Lynn, Peter Douglas Macintosh, Jessica Mary Page, Thomas Charles Pool, Marcus Worsley Richardson, Karin Helene Soldenhoff, Kelvin John Taylor, Colin Weyrauch
  • Publication number: 20100014011
    Abstract: A multistable liquid crystal device having liquid crystal molecules in one or more cavities, wherein at least one liquid crystal region of high distortion (100, 110) is formed in each cavity, the distortion region (100, 110) being switchable between at least two stable states on application of an electric field, the device being such that at least one of the stable states may be utilised as a reflective mode.
    Type: Application
    Filed: June 7, 2007
    Publication date: January 21, 2010
    Inventors: Nigel Mottram, Andrew Davidson
  • Patent number: 7607485
    Abstract: A subsea wellhead assembly has a tubing annulus path that extends partly through the tubing hanger and partly through the wellhead housing. A tubing hanger tubing annulus passage extends through part of the tubing hanger from a lower port on the lower end of the tubing hanger to an upper port on the exterior surface of the tubing hanger below the tubing hanger seal. A wellhead housing tubing annulus passage within the sidewall of the wellhead housing has a lower end at the bore below the tubing hanger seal and an upper end at the bore above the tubing hanger seal. A valve is mounted to the wellhead housing and accessible by an ROV from the exterior for opening and closing the inner wellhead housing tubing annulus passage.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: October 27, 2009
    Assignee: Vetco Gray Inc.
    Inventors: Stephen P. Fenton, Lars-Petter Sollie, Andrew Davidson
  • Publication number: 20090207028
    Abstract: The present apparatus and method for using the same detects REM in a sleeping mammal and awakens the mammal after the cessation of a specific episode of REM. The system comprises an alarm setting means for setting a predetermined wakeup time, a data collection means for collecting physiological data from the mammal over time, a processing means for determining the occurrence and cessation of REM and means of providing a stimulation signal for awakening the mammal within a prescribed window of time before said predetermined wakeup time and after the cessation of REM and after the mammal's nadir in body temperature with respect to time.
    Type: Application
    Filed: February 19, 2009
    Publication date: August 20, 2009
    Inventors: Alan Kubey, Andrew Davidson
  • Publication number: 20080106662
    Abstract: A bistable liquid crystal device having liquid crystal molecules in one or more cavities, at least one liquid crystal region of high distortion being formed in each cavity, these region(s) being switchable between bistable states on application of an electric field. Each cavity may have a polygon cross-section such as a square cross-section.
    Type: Application
    Filed: December 5, 2005
    Publication date: May 8, 2008
    Applicant: University Of Strathclyde
    Inventors: Nigel Mottram, Alison Ramage, Gavin Kelly, Andrew Davidson