Patents by Inventor Gerhard Roth
Gerhard Roth 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: 7514634Abstract: A superconductor element comprising Nb3Sn, in particular, multi-filament wire, which contains at least one superconducting filament (1) which is obtained after drawing through solid diffusion reaction from an initial filament structure which comprises a longitudinal hollow tube (3) of niobium (Nb) or an Nb alloy, in particular, NbTa or NbTi, with an inner surface (8) and an outer surface (9), wherein the tube (3) is embedded into a thermally and electrically highly conducting metal matrix (2), in particular, of copper (Cu), wherein the tube (3) is filled with a material (4) which contains tin (Sn) is characterized in that, for mechanical reinforcement of the conductor element and as a diffusion barrier during solid diffusion reaction, the outer surface (9) of the tube (3) is directly and completely surrounded by a sleeve (7) made from a metallic material which has, at room temperature, a thermal expansion coefficient ?sheet<17*10?6K?1, preferably ?sheet<8*10?6K?1, an elastic limit Rp0.Type: GrantFiled: July 13, 2005Date of Patent: April 7, 2009Assignee: Bruker EAS GmbHInventors: Gerhard Roth, Helmut Krauth
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Publication number: 20090050348Abstract: A superconductor element comprising Nb3Sn, in particular, multi-filament wire, which contains at least one superconducting filament (1) which is obtained after drawing through solid diffusion reaction from an initial filament structure which comprises a longitudinal hollow tube (3) of niobium (Nb) or an Nb alloy, in particular, NbTa or NbTi, with an inner surface (8) and an outer surface (9), wherein the tube (3) is embedded into a thermally and electrically highly conducting metal matrix (2), in particular, of copper (Cu), wherein the tube (3) is filled with a material (4) which contains tin (Sn) is characterized in that, for mechanical reinforcement of the conductor element and as a diffusion barrier during solid diffusion reaction, the outer surface (9) of the tube (3) is directly and completely surrounded by a sleeve (7) made from a metallic material which has, at room temperature, a thermal expansion coefficient ?sheet<17*10?6 K?1, preferably ?sheet<8*10?6 K?1, an elastic limit Rp0.Type: ApplicationFiled: July 13, 2005Publication date: February 26, 2009Applicant: European Advanced Superconductors GmbH & Co. KGInventors: Gerhard Roth, Helmut Krauth
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Patent number: 7330092Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (12)), and the winding chamber (1) in the notch region (12) contains a first separating body (4) with a truncated conical envelope (5) which axially divides the winding chamber (1) into two partial chambers (6, 7), the superconducting strip conductor being guided over the truncated conical envelope (5) of the first separating body (4) from one partial chamber (6) into the other partial chamber (7) via a single-layer transfer winding (9), and a second separating body (10) is provided which supplements the first separating body (4) in the notch region (12) in a radial outer direction to form a circular cylinder, wherein the single-layer transfer winding (9) is disposed bType: GrantFiled: August 31, 2005Date of Patent: February 12, 2008Assignee: Bruker Biospin GmbHInventors: Volker Niemann, Gerhard Roth, Klaus Schlenga
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Publication number: 20080023946Abstract: In a driver restraining system in a motor vehicle having an airbag which is integrated into a steering device, in the event of a crash, the positioning of the steering device and a triggering decision about the unfolding of the airbag and an unfolding characteristic of the airbag are determined by a control unit whose input signals include a signal of a crash detection sensor system and a signal of a passenger compartment sensor system which has at least one seat position detection means and a sensor system for sensing morphological data of the driver. Furthermore, in the event of a crash, the control unit additionally actuates a motor-operated seat adjustment device of the driver's seat in an adapted fashion.Type: ApplicationFiled: December 3, 2004Publication date: January 31, 2008Applicant: DAIMLERCHRYSLER AGInventors: Klaus-Dieter Haag, Gerhard Roth
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Patent number: 7318318Abstract: A cryostat (1) with a first helium tank (4) which contains helium at an operating temperature T1<3K, and a second helium tank (2) which is connected to the first helium tank (4) and contains liquid helium at an operating temperature T2>3K, wherein a cooling means (6) is provided in the first helium tank (4) which generates an operating temperature T1<3K in the first helium tank (4), wherein the cooling means (6) is designed as a Joule-Thomson valve with downstream heat exchanger from which pumped helium is transported to a room temperature region outside of the cryostat (1) is characterized in that a refrigerator (11) is provided whose cold end (19) projects into the second helium tank (2) and the supplied helium is returned during normal operation in a closed loop along the refrigerator (11) and into the second helium tank (2), thereby being pre-cooled and liquefied at the cold end (19) of the refrigerator (11).Type: GrantFiled: February 11, 2005Date of Patent: January 15, 2008Assignee: Bruker BioSpin GmbHInventor: Gerhard Roth
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Patent number: 7317369Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (10)), and the winding layers (6, 9) have hollow cylindrical blind regions (4a, 4b, 4c) which are filled with filler and which have different axial lengths, and radially sequential blind regions (4a, 4b, 4c) each alternately abut one of the two end flanges (2, 3) and are each radially separated from each other by at least one continuous winding layer (7), wherein the axial overlapping region of the blind regions (4a, 4b, 4c) forms the notch region (10). The inventive device thereby realizes a magnet coil configuration comprising a strip conductor which has a notch region for correcting inhomogeneities, wherein the mechanical load on the strip conductor is minimized.Type: GrantFiled: August 31, 2005Date of Patent: January 8, 2008Assignee: Bruker Biospin GmbHInventors: Gerhard Roth, Volker Niemann, Klaus Schlenga
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Patent number: 7310034Abstract: A superconducting magnet coil configuration has at least one section containing a superconducting strip conductor which is wound in several layers like a solenoid in a cylindrical winding chamber (1) between two end flanges (2, 3), characterized in that the radially innermost layers of the section consist of metallic low-temperature superconductors (LTS) (LTS layers (8)) and radially adjacent layers of the section are formed from high-temperature superconductor (HTS) material (HTS layers (9)). The invention proposes a magnet coil configuration using HTS material which has a notch structure for correcting inhomogeneities and homogenizing a compact high-field magnet, wherein the mechanical load on the HTS strip conductor is minimized.Type: GrantFiled: August 31, 2005Date of Patent: December 18, 2007Assignee: Bruker Biospin GmbHInventors: Klaus Schlenga, Volker Niemann, Gerhard Roth
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Publication number: 20070266552Abstract: A winding machine (1) for winding solenoid-shaped coils (21) with band-shaped conductors (6), comprising a winding means (3) which holds a circular-cylindrical coil core (2) of a coil (21) to be wound, and a winding drive which rotates a coil core (2), which is held in the winding means (3), about a winding axis W, wherein the winding means (3) can be moved in a first direction A by an axial drive, the direction A preferably extending approximately parallel to the winding axis W, is characterized in that the winding means (3) can be rotated about a pivot axis S by a pivot drive, wherein the pivot axis S extends perpendicularly to the direction A. The winding machine winds a solenoid-shaped coil with several layers of a band-shaped conductor without damaging the band-shaped conductor, in particular, when the band-shaped conductor contains brittle superconducting material.Type: ApplicationFiled: March 6, 2007Publication date: November 22, 2007Applicant: Bruker BioSpin GmbH, D-76287Inventors: Gerhard Roth, Klaus Schlenga, Thorsten Greeb, Roland Binger
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Patent number: 7279900Abstract: A magnetic resonance apparatus comprising a superconducting magnet coil which is disposed in a cryostat, and a refrigerator for cooling the magnet coil, which comprises a compressor for compressing a working gas, and a high-pressure line and a low-pressure line between the compressor and a control valve, which periodically connects the high-pressure line and the low-pressure line to a connecting line from the control valve to a cold head of the refrigerator, thereby generating pressure pulses via the connected working gas, wherein the control valve is mechanically rigidly connected to the cryostat, is characterized in that one pressure reservoir is provided in the high-pressure line and/or in the low pressure line, which is mechanically rigidly connected to the cryostat and which is connected to the compressor via a mechanically flexible line section.Type: GrantFiled: July 19, 2006Date of Patent: October 9, 2007Assignee: Bruker Biospin GmbHInventor: Gerhard Roth
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Publication number: 20070024284Abstract: A magnetic resonance apparatus comprising a superconducting magnet coil which is disposed in a cryostat, and a refrigerator for cooling the magnet coil, which comprises a compressor for compressing a working gas, and a high-pressure line and a low-pressure line between the compressor and a control valve, which periodically connects the high-pressure line and the low-pressure line to a connecting line from the control valve to a cold head of the refrigerator, thereby generating pressure pulses via the connected working gas, wherein the control valve is mechanically rigidly connected to the cryostat, is characterized in that one pressure reservoir is provided in the high-pressure line and/or in the low pressure line, which is mechanically rigidly connected to the cryostat and which is connected to the compressor via a mechanically flexible line section.Type: ApplicationFiled: July 19, 2006Publication date: February 1, 2007Applicant: Bruker BioSpin GmbHInventor: Gerhard Roth
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Publication number: 20070008055Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (10)), and the winding layers (6, 9) have hollow cylindrical blind regions (4a, 4b, 4c) which are filled with filler and which have different axial lengths, and radially sequential blind regions (4a, 4b, 4c) each alternately abut one of the two end flanges (2, 3) and are each radially separated from each other by at least one continuous winding layer (7), wherein the axial overlapping region of the blind regions (4a, 4b, 4c) forms the notch region (10). The inventive device thereby realizes a magnet coil configuration comprising a strip conductor which has a notch region for correcting inhomogeneities, wherein the mechanical load on the strip conductor is minimized.Type: ApplicationFiled: August 31, 2005Publication date: January 11, 2007Applicant: Bruker BioSpin GmbHInventors: Gerhard Roth, Volker Niemann, Klaus Schlenga
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Publication number: 20060064989Abstract: A cryostat (1) with a first helium tank (4) which contains helium at an operating temperature T1<3 K, and a second helium tank (2) which is connected to the first helium tank (4) and contains liquid helium at an operating temperature T2>3 K, wherein a cooling means (6) is provided in the first helium tank (4) which generates an operating temperature T1<3 K in the first helium tank (4), wherein the cooling means (6) is designed as a Joule-Thomson valve with downstream heat exchanger from which pumped helium is transported to a room temperature region outside of the cryostat (1) is characterized in that a refrigerator (11) is provided whose cold end (19) projects into the second helium tank (2) and the supplied helium is returned during normal operation in a closed loop along the refrigerator (11) and into the second helium tank (2), thereby being pre-cooled and liquefied at the cold end (19) of the refrigerator (11).Type: ApplicationFiled: February 11, 2005Publication date: March 30, 2006Applicant: Bruker BioSpin GmbHInventor: Gerhard Roth
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Publication number: 20060055494Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (12)), and the winding chamber (1) in the notch region (12) contains a first separating body (4) with a truncated conical envelope (5) which axially divides the winding chamber (1) into two partial chambers (6, 7), the superconducting strip conductor being guided over the truncated conical envelope (5) of the first separating body (4) from one partial chamber (6) into the other partial chamber (7) via a single-layer transfer winding (9), and a second separating body (10) is provided which supplements the first separating body (4) in the notch region (12) in a radial outer direction to form a circular cylinder, wherein the single-layer transfer winding (9) is disposed bType: ApplicationFiled: August 31, 2005Publication date: March 16, 2006Applicant: Bruker BioSpin GmbHInventors: Volker Niemann, Gerhard Roth, Klaus Schlenga
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Publication number: 20050198974Abstract: A superconducting magnet system with an operating temperature T1<3K which is disposed in a first helium tank (4) of a cryostat (1), wherein a second helium tank (2) is provided which is connected to the first helium tank (4) and contains liquid helium at an operating temperature T2>3K, wherein a cooling means is provided in the first helium tank (4) which generates an operating temperature T1<3K in that first helium tank (4) is characterized in that the cooling means is the cold end (19) of a pulse tube cooler (11) whose warm end (10) is disposed outside of the cryostat (1). The inventive magnet system minimizes the helium consumption thereby providing continuous measuring operation.Type: ApplicationFiled: March 8, 2005Publication date: September 15, 2005Applicant: Bruker BioSpin GmbH,Inventor: Gerhard Roth
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Patent number: 6777938Abstract: 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: GrantFiled: October 29, 2002Date of Patent: August 17, 2004Assignee: Bruker Biospin GmbHInventors: Klaus Schlenga, Wolfgang Frantz, Gerhard Roth, Pierre-Alain Bovier, Andreas Amann, Robert Schauwecker
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Patent number: 6774752Abstract: The invention concerns an NMR (nuclear magnetic resonance) high field magnet coil system comprising superconducting conductor structures for generating a homogeneous magnetic field B0 in a measuring volume (23) with several radially nested solenoidal coil sections (12, 13, 31), which is characterized in that the radially innermost coil section (31) is wound with a band-shaped superconductor with an aspect ratio (width to thickness) >3 on a coil support which axially projects, at least at one axial end, past the winding packet of the radially neighboring coil section (12) and the band-shaped superconductor is guided on this side tangentially towards the outside to a region of reduced magnetic field strength and terminates in at least one electrical connecting point (16). This permits use of a brittle band-shaped superconductor for the innermost coil system (31) which cannot be strongly bent at the upper edge.Type: GrantFiled: January 17, 2003Date of Patent: August 10, 2004Assignee: Bruker Biospin GmbHInventors: Klaus Schlenga, Gerhard Roth, Arne Kasten
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Publication number: 20040135659Abstract: The invention concerns an NMR (nuclear magnetic resonance) high field magnet coil system comprising superconducting conductor structures for generating a homogeneous magnetic field B0 in a measuring volume (23) with several radially nested solenoidal coil sections (12, 13, 31), which is characterized in that the radially innermost coil section (31) is wound with a band-shaped superconductor with an aspect ratio (width to thickness) >3 on a coil support which axially projects, at least at one axial end, past the winding packet of the radially neighboring coil section (12) and the band-shaped superconductor is guided on this side tangentially towards the outside to a region of reduced magnetic field strength and terminates in at least one electrical connecting point (16). This permits use of a brittle band-shaped superconductor for the innermost coil system (31) which cannot be strongly bent at the upper edge.Type: ApplicationFiled: January 17, 2003Publication date: July 15, 2004Applicant: Bruker BioSpin GmbHInventors: Klaus Schlenga, Gerhard Roth, Arne Kasten
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Patent number: 6600398Abstract: A superconducting very high field magnet coil with several solenoidal multi-layer coil sections which are wound in layers onto a hollow cylindrical support body (3) about a common central axis a, and which are electrically connected in series to carry a current in excess of 100 A is characterized in that the radially innermost coil section (1) comprises superconducting wire (2) which contains oxidic, high temperature superconductor (HTS) material, wherein the layers of the radially innermost coil section (1) are helically wound such that there is a free axial space between the walls, which is then sealed.Type: GrantFiled: May 17, 2002Date of Patent: July 29, 2003Assignee: Bruker Biospin GmbHInventors: Gerhard Roth, Arne Kasten
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Publication number: 20030094951Abstract: 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: ApplicationFiled: October 29, 2002Publication date: May 22, 2003Applicant: Bruker BioSpin GmbHInventors: Klaus Schlenga, Wolfgang Frantz, Gerhard Roth, Pierre-Alain Bovier, Andreas Amann, Robert Schauwecker
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Patent number: 6564717Abstract: The disclosure describes a circuit arrangement for driving an occupant protection system gas generator whose ignition process can be influenced by a magnetic field; this is based on a switching control principle, with the load coil generating the magnetic field being itself used as a component part of the switching control. For a fast reduction of the magnetic field and thus for accelerating the ignition process, a resistor may by connected into the free-wheeling branch, which is bridged in normal operation. Alternatively, it is possible to effect a return feed of the energy stored in the coil into the self-sufficiency capacitor.Type: GrantFiled: December 14, 2001Date of Patent: May 20, 2003Assignee: Conti Temic microelectronic GmbHInventors: Thomas Haerle, Johann Florian, Gerhard Roth, Guido Wetzel