Patents by Inventor Timothy A. Hughes

Timothy A. Hughes 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: 20150305134
    Abstract: A device for collecting electrically charged particles comprising a first shell and a second shell disposed concentrically around the first shell is provided. Each of the shells is divided respectively into a first half-shell and a second half-shell. A first switch is disposed between the first half-shell of the first shell and the second half-shell of the first shell. A second switch is disposed between the second half-shell of the first shell and the first half-shell of the second shell. The first half-shell of the second shell has a through opening.
    Type: Application
    Filed: June 4, 2012
    Publication date: October 22, 2015
    Inventors: Oliver HEID, Timothy HUGHES
  • Patent number: 9151850
    Abstract: The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a conversion system (160) located on the lateral wall (123) of the scintillator (120), said system comprising a plurality of channels (165). Each channel (165) has a photocathode section (130; 131; 132) for generating electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), said electrons being multipliable by impact processes in the channels (165). A detection system (170) for detecting electrons (204) that have been multiplied in the channels (165) of the conversion system (160) is also provided.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: October 6, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Harry Hedler, Timothy Hughes, Martin Spahn, Stefan Wirth
  • Publication number: 20150255848
    Abstract: A device for coupling RF power into a waveguide includes a push-pull output stage that includes an input and an output, a filter arrangement that is connected to the output of the push-pull output stage, and an induction loop that is connected to the filter arrangement is provided.
    Type: Application
    Filed: September 26, 2012
    Publication date: September 10, 2015
    Inventors: Oliver Heid, Timothy Hughes
  • Publication number: 20150255845
    Abstract: An RF power combiner functioning as a higher-order harmonics filter comprises: at least one pair of coaxially arranged disc-shaped metal conductors, at least one of the conductors having a central axial opening to accommodate a waveguide is provided. Facing surfaces of the disk-shaped metal conductors are shaped symmetrically with respect to the plane of symmetry of the disk-shaped metal conductors to form a plurality of consecutive, radially communicating concentric cavities having isosceles trapezoids with different bases in section. The smaller base of each trapezoid disposed closer to the central axis. The number of the concentric cavities is (2 k+1), where K is the number of signal harmonics being filtered.
    Type: Application
    Filed: February 18, 2013
    Publication date: September 10, 2015
    Inventors: Oliver Heid, Timothy Hughes, Stepan Polikhov, Alexander Smirnov
  • Publication number: 20150249322
    Abstract: A spark gap including a capacitive energy store is provided. The spark gap is fed via a multiplicity of capacitors arranged in a form of a ring, wherein the capacitors are electrically connected to the anode and the cathode via ring-shaped and conical or funnel-shaped conductors. As a result, sudden changes in impedance can be avoided. At the same time, it is possible to realize as large a cross-sectional area of the conductor as possible within a very small space. Therefore, the spark gap has a switching response with a high rate of rise of the voltage pulse as soon as the spark gaps flash over. This results in an easily predictable switching response of the spark gap. The spark gap can be used, for example, to generate pulses of monochromatic X-ray radiation.
    Type: Application
    Filed: July 11, 2012
    Publication date: September 3, 2015
    Inventors: Oliver Heid, Timothy Hughes, Jennifer Sirtl
  • Publication number: 20150247907
    Abstract: An examination system including a magnetic resonance scanner having a solenoid for generating a magnetic field, the solenoid surrounding an examination chamber is provided. In addition, a first X-ray source and a first X-ray detector are provided in the examination chamber.
    Type: Application
    Filed: September 21, 2012
    Publication date: September 3, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Oliver Heid, Jürgen Heller, Timothy Hughes, Michael Kleeman
  • Publication number: 20150228441
    Abstract: An anode for generating X-radiation having a holder and a target layer held by the holder, the target layer comprising a middle section and an edge section, is provided. The anode is provided for being exposed to an electron beam directed at the middle section of the target layer. The edge section is arranged laterally next to the middle section in relation to the direction of the electron beam. Furthermore, the edge section is thicker than the middle section in the direction of the electron beam.
    Type: Application
    Filed: September 21, 2012
    Publication date: August 13, 2015
    Inventors: Svetlana Gossmann-Levchuk, Oliver Heid, Timothy Hughes, Thomas Kluge
  • Publication number: 20150228442
    Abstract: A device for producing x-ray radiation including an anode with a target layer, a cathode for emitting an electron beam a deflection unit for deflecting the electron beam onto the target layer by means of an electric field and a focusing unit for focusing the electron beam is provided.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 13, 2015
    Inventors: Peter Simon Aptaker, Paul Beasley, Svetlana Gossmann-Levchuk, Oliver Heid, Timothy Hughes
  • Patent number: 9097808
    Abstract: The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a photocathode section (130) that is located on the lateral electrons wall (123) of the scintillator (120) and that generates electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), a microchannel plate (161; 162) comprising a plurality of channels (165), for multiplying the electrons (204) that have been generated by the photocathode section (130) and a detection system (171; 172) for detecting the electrons (204) that have been multiplied by means of the microchannel plate (161; 162).
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: August 4, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Harry Hedler, Timothy Hughes, Martin Spahn, Stefan Wirth
  • Publication number: 20150187539
    Abstract: A spark gap comprising a cathode and an anode is provided. The spark gap is divided into two partial spark gaps by means of a central piece, namely a high-pressure spark gap and an effective spark gap. The effective spark gap can for example, be used to generate monochromatic x-rays. In order to guarantee a defined switching time, the high pressure spark gap which is initially switched to defined, is used. The switching initiates a potential so high on the centre piece that, when the high pressure spark gap is switched, the effective spark gap can also be switched in a defined manner without significant delays, to a visibly higher voltage.
    Type: Application
    Filed: June 14, 2012
    Publication date: July 2, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Oliver Heid, Timothy Hughes, Jennifer Sirtl
  • Publication number: 20150170869
    Abstract: An x-ray source in which monochromatic x-rays can be produced is provided. A method for producing X-rays and to the use of the x-ray source for x-raying bodies is also provided. A metallic film is arranged in a housing as a target which is bombarded with the electron beam. As a result, the metallic film is excited for emitting monochromatic x-rays, the relatively thin-walled target being modified such that the intended use for producing monochromatic x-rays is no longer possible. Therefore, advantageously, the production device can be pivoted for producing the electron beam as well as being able to wind the target on rollers.
    Type: Application
    Filed: June 14, 2012
    Publication date: June 18, 2015
    Inventors: Oliver Heid, Timothy Hughes, Jennifer Sirtl
  • Publication number: 20150170868
    Abstract: An x-ray source comprising a housing, in which a target in the form of an ionized cloud based on metal vapour is provided. The ionized cloud can be excited by means of an electron beam for emitting monochromatic x-rays. The low atom density advantageously produces only a little braking radiation. The robustness of the plasma with respect to the inevitable thermal energy input is also advantageous with respect to the solid target materials. The cloud can be filled at any time with target material which can be vaporised by means of an electric arc. A method for producing x-rays with the above-mentioned x-ray source is also provided. The use of an x-ray source for emitting monochromatic x-rays for x-raying a body is further provided.
    Type: Application
    Filed: June 15, 2012
    Publication date: June 18, 2015
    Inventors: Oliver Heid, Timothy Hughes, Jennifer Sirtl
  • Publication number: 20150139402
    Abstract: X-ray sources and production of X-rays, in particular, producing monochromatic x-rays is provided. More specifically, a method for producing X-rays and the use of the X-ray source for x-raying bodies (for example human bodies). An aerogel, for example in the form of a rod, may be provided in a housing as a target. Said target may be bombarded with an electron beam, the aerogel being vaporized due to the extreme low density and the high energy. As a result, the target is guided by means of a roller such that an unused target for producing, in particular, the monochromatic X-rays, is always available.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 21, 2015
    Applicant: SIEMENS AKTIENGESELL SCHAFT
    Inventors: Oliver Heid, Timothy Hughes, Jennifer Sirtl
  • Publication number: 20150132622
    Abstract: A starter battery is provided comprising a plurality of pouch-type prismatic cells stacked to form an array and configured to output a voltage sufficient to start a vehicle engine. The starter battery further includes a housing configured to contain the array wherein the housing includes a tray and a lid attached with the tray such that the housing provides a compressive force sufficient to prevent cell delamination and to constrain expansion or swelling of the cells during operation.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Inventors: Jerry Gohl, Timothy Hughes, Arfan Ahmad, Jason Davis, Robert Dickie, Kevin Martus, Michael Shenberger, David Allen
  • Publication number: 20150048893
    Abstract: A method for exciting a resonator having a resonance frequency, the resonator is excited in a first period with a first frequency that differs from the resonance frequency by a first frequency difference is provided. During a second period, the resonator is excited with a second frequency that differs from the resonance frequency by a second frequency difference. The first frequency difference and the second frequency difference have different signs. Additionally, the amounts of the first frequency difference and of the second frequency difference differ from one another by less than 10% of the greater amount.
    Type: Application
    Filed: March 21, 2012
    Publication date: February 19, 2015
    Inventors: Oliver Heid, Timothy Hughes, Jennifer Sirtl
  • Patent number: 8792960
    Abstract: In a magnetic resonance method and apparatus for generating an analysis of an inflammation of a joint, for determining a proteoglycan proportion of a joint, and for generating an analysis of osteoarthritis of a joint, for a predetermined region within a body of a patient, a three-dimensional MR image data set is generated with a magnetic resonance imaging scanner. At least, a portion of a joint is located within the region. For each of several different automatically determined layers, a two-dimensional MR image is calculated from the three-dimensional MR image data set. For each layer, the thickness of a predetermined tissue, which is represented in the two-dimensional MR image corresponding to the layer, is determined, by means of which an analysis of a joint inflammation is automatically determined depending on the respective thicknesses.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: July 29, 2014
    Assignees: Siemens Aktiengesellschaft, Inselspital-Stiftung
    Inventors: Timothy Hughes, Tallal Charles Mamisch
  • Patent number: 8779697
    Abstract: An RF cavity includes a chamber, a conductive wall that encloses the chamber and has an inner side and an outer side, a switch arrangement comprising a plurality of solid-state switches arranged along a circumference of the wall around the chamber, wherein the solid-state switches are connected to the conductive wall such that RF currents are induced in the conductive wall when the switch arrangement is activated, as a result of which RF power is coupled into the chamber of the RF cavity, and a shielding device located on the outer side of the conductive wall, along a circumference of the RF cavity, the shielding device configured to increase the impedance of a propagation path of RF currents along the outer side of the wall such that the RF currents coupled into the wall are suppressed on the outer side of the wall.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: July 15, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Arnd Baurichter, Oliver Heid, Timothy Hughes
  • Publication number: 20140124676
    Abstract: The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a conversion system (160) located on the lateral wall (123) of the scintillator (120), said system comprising a plurality of channels (165). Each channel (165) has a photocathode section (130; 131; 132) for generating electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), said electrons being multipliable by impact processes in the channels (165). A detection system (170) for detecting electrons (204) that have been multiplied in the channels (165) of the conversion system (160) is also provided.
    Type: Application
    Filed: May 21, 2012
    Publication date: May 8, 2014
    Inventors: Harry Hedler, Timothy Hughes, Martin Spahn, Stefan Wirth
  • Publication number: 20140103219
    Abstract: The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a photocathode section (130) that is located on the lateral wall (123) of the scintillator (120) and that generates electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), a microchannel plate (161; 162) comprising a plurality of channels (165), for multiplying the electrons (204) that have been generated by the photocathode section (130) and a detection system (171; 172) for detecting the electrons (204) that have been multiplied by means of the microchannel plate (161; 162).
    Type: Application
    Filed: May 21, 2012
    Publication date: April 17, 2014
    Inventors: Harry Hedler, Timothy Hughes, Martin Spahn, Stefan Wirth
  • Publication number: 20140077729
    Abstract: An RF generator has a hollow conductor having a conductive wall. The wall has a first slot, over which a first solid-state switch is arranged in order to apply a radiofrequency electrical voltage through the first slot.
    Type: Application
    Filed: October 13, 2011
    Publication date: March 20, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Oliver Heid, Timothy Hughes