Patents by Inventor Andreas Amann

Andreas Amann 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: 20180191231
    Abstract: A vibrational energy harvesting device is disclosed, which comprises first and second assemblies mounted on a base at a distance one from the other. The first assembly comprises vibrational means adapted to stretch under a straining force, whereby the device exhibits monostable quartic nonlinearity. The first and second assemblies comprise respective magnetised means in opposite polarity to one another, so that the second assembly exerts a repulsive magnetic force upon the vibrational means, whereby the device exhibits bistability. Both the monostable quartic and bistable nonlinearities can be independently controlled. A method of harvesting energy with the vibrational energy harvesting device is also disclosed.
    Type: Application
    Filed: June 16, 2016
    Publication date: July 5, 2018
    Inventors: Roy Saibal, Pranay Podder, Dhiman Mallick, Andreas Amann
  • Patent number: 8384504
    Abstract: A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: February 26, 2013
    Assignee: Quantum Design International, Inc.
    Inventors: Jost Diederichs, Andreas Amann, Michael B. Simmonds
  • Patent number: 8134434
    Abstract: A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 13, 2012
    Assignee: Quantum Design, Inc.
    Inventors: Jost Diederichs, Andreas Amann, Michael B. Simmonds
  • Publication number: 20100001821
    Abstract: A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Applicant: QUANTUM DESIGN, INC.
    Inventors: Jost DIEDERICHS, Andreas AMANN, Michael B. SIMMONDS
  • Publication number: 20070159280
    Abstract: A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.
    Type: Application
    Filed: January 6, 2006
    Publication date: July 12, 2007
    Inventors: Jost Diederichs, Andreas Amann, Michael Simmonds
  • Patent number: 6781494
    Abstract: A magnet assembly for generating a magnetic field (H) in the direction of a z axis in a working volume (AV) comprises an actively shielded superconducting magnet coil system (M) and at least one current path (P1, . . . , Pn) which is superconductingly closed in the operating state. The actively shielded superconducting magnet coil system (M) has a radially inner partial coil system (C1) and a radially outer partial coil system (C2) disposed coaxially with respect to each other. An external device supplies current to the current paths (P1, . . . , Pn) to charge each path to a respective current (IP1, . . . , IPn) in the operating state. When optimizing the fringe field behavior outside of the magnet system, the overall magnitude of magnetic dipole moments of the current paths (P1, . . . , Pn), charged to their respective operating currents (IP1, . . . , IPn), is at least 0.1% of the magnitude of the magnetic dipole moment of the charged partial coil system (C2). When charging the current paths (P1, . . .
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: August 24, 2004
    Assignee: Bruker Biospin AG
    Inventors: Robert Schauwecker, Andreas Amann, Pierre-Alain Bovier
  • Patent number: 6777938
    Abstract: An NMR magnet coil system, comprising superconducting conductor structures, with an inductance L0 for generating a homogeneous magnetic field B0 through which an operating current I0 flows in the persistent mode, and wherein further superconducting switches (S1, S2, . . . Sn−1) are each provided between two points (P1, Q1), (P2, Q2), . . . , (Pn−1, Qn−1) of the winding of the magnet coil system which, during operation, separately superconductingly short-circuit one or more disjoint partial regions (1, 2, . . . , n−1) with the inductances L1, L2, . . . , Ln−1 to generate magnetic field contributions B1, B2, . . .
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: August 17, 2004
    Assignee: Bruker Biospin GmbH
    Inventors: Klaus Schlenga, Wolfgang Frantz, Gerhard Roth, Pierre-Alain Bovier, Andreas Amann, Robert Schauwecker
  • Patent number: 6700469
    Abstract: A magnet assembly for generating a magnetic field (H) in the direction of a z axis in a working volume (AV) disposed on the z axis about z=0 with an actively shielded superconducting magnet coil system (M) and at least one current path (P1, . . . , Pn) which is superconductingly closed in the operating state, wherein the actively shielded superconducting magnet coil system (M) comprises a radially inner partial coil system (C1) and a radially outer partial coil system (C2) disposed coaxially with respect to each other and whose magnetic dipole moments have opposite signs in the operating state and differ by an amount &Dgr;m, with |&Dgr;m|<2.5% of the magnitude of the magnetic dipole moment of the radially inner partial coil system (C1), is characterized in that the current paths (P1, . . . ,Pn) are at least temporally superconductingly short-circuited during charging of the actively shielded superconducting magnet coil system (M) and that the current paths (P1, . . .
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: March 2, 2004
    Assignee: Bruker Biospin AG
    Inventors: Andreas Amann, Robert Schauwecker, Pierre-Alain Bovier
  • Patent number: 6680662
    Abstract: In a magnet arrangement (M, D, P1, . . . , Pn) having a magnet coil system (M) with at least one current-carrying superconducting magnet coil, with an additional current-carrying coil system (D) which can be fed by an external current source to produce a magnetic field in the working volume which differs substantially from zero, and optionally with additional superconductingly closed current paths (P1, . . . , Pn), wherein the magnetic fields in the z direction, generated by the additional current paths (P1, . . . , Pn) due to currents induced during operation and the field of the additional current-carrying coil system (D) do not exceed 0.1 Tesla in the working volume, the additional coil system (D) is designed such that its field contribution to the working volume is determined taking into account the diamagnetism of the superconductor in the main coil system. This permits as large as possible an effective field efficiency of the additional coil system (D).
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: January 20, 2004
    Assignee: Bruker AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann, Werner Tschopp
  • Publication number: 20030236170
    Abstract: A magnet assembly for generating a magnetic field (H) in the direction of a z axis in a working volume (AV) comprises an actively shielded superconducting magnet coil system (M) and at least one current path (P1, . . . , Pn) which is superconductingly closed in the operating state. The actively shielded superconducting magnet coil system (M) has a radially inner partial coil system (C1) and a radially outer partial coil system (C2) disposed coaxially with respect to each other. An external device supplies current to the current paths (P1, . . . , Pn) to charge each path to a respective current (IP1, . . . , IPn) in the operating state. When optimizing the fringe field behavior outside of the magnet system, the overall magnitude of magnetic dipole moments of the current paths (P1, . . . , Pn), charged to their respective operating currents (IP1, . . . , IPn), is at least 0.1% of the magnitude of the magnetic dipole moment of the charged partial coil system (C2). When charging the current paths (P1, . . .
    Type: Application
    Filed: June 9, 2003
    Publication date: December 25, 2003
    Applicant: Bruker BioSpin AG
    Inventors: Robert Schauwecker, Andreas Amann, Pierre-Alain Bovier
  • Publication number: 20030234649
    Abstract: A magnet assembly for generating a magnetic field (H) in the direction of a z axis in a working volume (AV) disposed on the z axis about z=0 with an actively shielded superconducting magnet coil system (M) and at least one current path (P1, . . . , Pn) which is superconductingly closed in the operating state, wherein the actively shielded superconducting magnet coil system (M) comprises a radially inner partial coil system (C1) and a radially outer partial coil system (C2) disposed coaxially with respect to each other and whose magnetic dipole moments have opposite signs in the operating state and differ by an amount &Dgr;m, with |&Dgr;m|<2.5% of the magnitude of the magnetic dipole moment of the radially inner partial coil system (C1), is characterized in that the current paths (P1, . . . , Pn) are at least temporally superconductingly short-circuited during charging of the actively shielded superconducting magnet coil system (M) and that the current paths (P1, . . .
    Type: Application
    Filed: June 9, 2003
    Publication date: December 25, 2003
    Applicant: Bruker BioSpin AG
    Inventors: Andreas Amann, Robert Schauwecker, Pierre-Alain Bovier
  • Patent number: 6617853
    Abstract: A magnet arrangement comprising a superconducting magnet coil system (C) for generating a magnetic field in the direction of a z axis in a working volume (AV) disposed on the z axis about z=0, wherein the field of the magnet coil system (C) in the working volume (AV) comprises at least one inhomogeneous contribution Hn·zn with n≧2 whose contribution to the total field strength on the z axis about z=0 varies with the nth power of z, and wherein a field shaping device (P) of magnetic material is provided, which is substantially cylindrically symmetrical with respect to the z axis, is characterized in that the magnet coil system (C) is provided for use in an apparatus for high-resolution magnetic resonance spectroscopy and the field shaping device (P) has, at least partially, a radial separation from the z axis of less than 80 mm and compensates for at least one of the inhomogeneous field contributions Hn·zn of the magnet coil system (C) by at least 50%, wherein at least one additi
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: September 9, 2003
    Assignee: Bruker Biospin AG
    Inventors: Pierre-Alain Bovier, Robert Schauwecker, Andreas Amann, Daniel M. Eckert
  • Publication number: 20030094951
    Abstract: An NMR magnet coil system, comprising superconducting conductor structures, with an inductance L0 for generating a homogeneous magnetic field B0 through which an operating current I0 flows in the persistent mode, and wherein further superconducting switches (S1, S2, . . . Sn−1) are each provided between two points (P1, Q1), (P2, Q2), . . . , (Pn−1, Qn−1) of the winding of the magnet coil system which, during operation, separately superconductingly short-circuit one or more disjoint partial regions (1, 2, . . . , n−1) with the inductances L1, L2, . . . , Ln−1 to generate magnetic field contributions B1, B2, . . . , Bn−1 to the homogeneous magnetic field B0, is characterized in that the following is valid: 1 α = &LeftBracketingBar; L 0 ⁢ ∑ j = 1 n ⁢ ( L - 1 ) jn ⁢ B j B 0 &RightBracketingBar; ≤ 0.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 22, 2003
    Applicant: Bruker BioSpin GmbH
    Inventors: Klaus Schlenga, Wolfgang Frantz, Gerhard Roth, Pierre-Alain Bovier, Andreas Amann, Robert Schauwecker
  • Publication number: 20030095021
    Abstract: In a magnet arrangement (M, D, P1, . . . , Pn) having a magnet coil system (M) with at least one current-carrying superconducting magnet coil, with an additional current-carrying coil system (D) which can be fed by an external current source to produce a magnetic field in the working volume which differs substantially from zero, and optionally with additional superconductingly closed current paths (P1, . . . , Pn), wherein the magnetic fields in the z direction, generated by the additional current paths (P1, . . . , Pn) due to currents induced during operation and the field of the additional current-carrying coil system (D) do not exceed 0.1 Tesla in the working volume, the additional coil system (D) is designed such that its field contribution to the working volume is determined taking into account the diamagnetism of the superconductor in the main coil system. This permits as large as possible an effective field efficiency of the additional coil system (D).
    Type: Application
    Filed: August 17, 2001
    Publication date: May 22, 2003
    Applicant: Bruker AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann, Werner Tschopp
  • Patent number: 6563316
    Abstract: A magnet arrangement comprising an actively shielded superconducting magnet coil system (M) and a plurality of protective elements (R1, . . . , Rl) for protection in case of a quench, wherein the superconducting magnet coil system (M) comprises a radially inner partial coil system (C1) and a radially outer partial coil system (C2) which are electrically connected in series and arranged coaxially with respect to one another and which each produce a magnetic field of opposite direction, wherein the superconducting current path of the magnet coil system (M) is subdivided into several sections (A1, . . . , An) each of which is electrically connected in parallel with at least one of the protective elements (R1, . . . , Rl), and wherein at least one of these sections (A1, . . .
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: May 13, 2003
    Assignee: Bruker Biospin AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann
  • Patent number: 6496091
    Abstract: A superconducting magnet arrangement (M, S, P1, . . . , Pn) for generating a magnetic field in the direction of a z axis in a working volume, disposed about z=0, comprising a magnet coil system (M) with at least one current-carrying superconducting magnet coil, a shim device (S) with at least one superconducting shim coil and additional superconductingly closed current paths (P1, . . . , Pn), wherein the magnetic fields generated in the z direction and in the working volume by the additional current paths due to induced currents during operation, do not exceed a magnitude of 0.1 Tesla, and wherein the shim device generates a field which varies along the z axis with a kth power of z for an even power of k>0, is characterized in that the shim device is designed such that the effective field efficiency gSeff of the shim device is substantially zero taking into consideration the diamagnetism of the superconductor in the magnet coil system.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: December 17, 2002
    Assignee: Bruker AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann, Werner Tschopp
  • Patent number: 6476700
    Abstract: A superconducting magnet system for generating a magnetic field in the direction of a z axis in a working volume disposed about z=0 with at least one current-carrying magnet coil (M) and with at least one additional, superconductingly closed current path (P1, . . . , Pn), which can react inductively to the changes of the magnetic flux through the area enclosed by it, wherein the magnetic fields in the z direction in the working volume which are produced by these additional current paths during operation and due to induced currents, do not exceed a magnitude of 0.1 Tesla, is characterized in that, when an additional disturbance coil (D) produces a substantially homogeneous disturbance field in the magnet volume, the diamagnetic expulsion of the disturbance field from the main magnet coil is taken into consideration when designing the magnet coil(s) and the current paths.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: November 5, 2002
    Assignee: Bruker AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann, Werner Tschopp
  • Publication number: 20020140427
    Abstract: A magnet arrangement comprising a superconducting magnet coil system (C) for generating a magnetic field in the direction of a z axis in a working volume (AV) disposed on the z axis about z=0, wherein the field of the magnet coil system (C) in the working volume (AV) comprises at least one inhomogeneous contribution Hn·zn with n≧2 whose contribution to the total field strength on the z axis about z=0 varies with the nth power of z, and wherein a field shaping device (P) of magnetic material is provided, which is substantially cylindrically symmetrical with respect to the z axis, is characterized in that the magnet coil system (C) is provided for use in an apparatus for high-resolution magnetic resonance spectroscopy and the field shaping device (P) has, at least partially, a radial separation from the z axis of less than 80 mm and compensates for at least one of the inhomogeneous field contributions Hn·zn of the magnet coil system (C) by at least 50%, wherein at least one additi
    Type: Application
    Filed: January 22, 2002
    Publication date: October 3, 2002
    Applicant: Bruker AG
    Inventors: Pierre-Alain Bovier, Robert Schauwecker, Andreas Amann, Daniel M. Eckert
  • Publication number: 20020101239
    Abstract: A magnet arrangement comprising an actively shielded superconducting magnet coil system (M) and a plurality of protective elements (R1, . . . , Rl) for protection in case of a quench, wherein the superconducting magnet coil system (M) comprises a radially inner partial coil system (C1) and a radially outer partial coil system (C2) which are electrically connected in series and arranged coaxially with respect to one another and which each produce a magnetic field of opposite direction, wherein the superconducting current path of the magnet coil system (M) is subdivided into several sections (A1, . . . , An) each of which is electrically connected in parallel with at least one of the protective elements (R1, . . . , Rl), and wherein at least one of these sections (A1, . . .
    Type: Application
    Filed: November 8, 2001
    Publication date: August 1, 2002
    Applicant: Bruker AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann
  • Publication number: 20020047763
    Abstract: A superconducting magnet arrangement (M, S, P1, . . . , Pn) for generating a magnetic field in the direction of a z axis in a working volume, disposed about z=0, comprising a magnet coil system (M) with at least one current-carrying superconducting magnet coil, a shim device (S) with at least one superconducting shim coil and additional superconductingly closed current paths (P1, . . . , Pn), wherein the magnetic fields generated in the z direction and in the working volume by the additional current paths due to induced currents during operation, do not exceed a magnitude of 0.1 Tesla, and wherein the shim device generates a field which varies along the z axis with a kth power of z for an even power of k>0. is characterized in that the shim device is designed such that the effective field efficiency gSeff of the shim device is substantially zero taking into consideration the diamagnetism of the superconductor in the magnet coil system.
    Type: Application
    Filed: August 17, 2001
    Publication date: April 25, 2002
    Applicant: Bruker AG
    Inventors: Robert Schauwecker, Pierre-Alain Bovier, Andreas Amann, Werner Tschopp