Patents by Inventor Ludwig Weber

Ludwig Weber 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).

  • Patent number: 11536869
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: December 27, 2022
    Assignee: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Patent number: 11513250
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: November 29, 2022
    Assignee: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Patent number: 11300300
    Abstract: A method for detecting a cleaning need of a commercial cooking appliance with at least one cooking surface. The method includes the steps of capturing at least one image of at least a part of the cooking surface and/or at least a part of a cooking product, comparing the captured image of the part of the cooking surface with a prestored reference image of a contaminated cooking surface requiring cleaning and/or of the captured image of the part of the cooking product with a prestored reference image of the cooking product in a cooking status indicating a need for cleaning the cooking surface, and deciding, based on the result of the comparison, whether a cleaning is needed. A further aspect relates to a quality management monitoring system as well as a commercial appliance with a quality management monitoring system.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 12, 2022
    Assignee: CONVOTHERM-ELEKTROGERAETE GMBH
    Inventor: Ludwig Weber
  • Publication number: 20220085665
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 17, 2022
    Applicant: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Publication number: 20220085664
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 17, 2022
    Applicant: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Patent number: 11211834
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: December 28, 2021
    Assignee: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Publication number: 20210050747
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 18, 2021
    Applicant: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Patent number: 10855117
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: December 1, 2020
    Assignee: WitTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Publication number: 20190363588
    Abstract: Systems and methods are described for extended foreign object detection (FOD) signal processing. In aspects, an oscillator reset is implemented in a FOD system to mitigate the effects of intermodulation products. In addition, dynamic frequency allocation is implemented to avoid high noise desensitizing the FOD system. Also, a slow sampling mode is implemented to increase a tolerance to transient foreign objects. Reference tracking and auto-recovery is implemented to bridge power outages. Additionally, the FOD system is configured to support position finding for determining an alignment between the vehicle pad and the base pad using a passive beacon transponder circuit and to perform beacon response cancellation as needed in concurrent FOD operation.
    Type: Application
    Filed: April 23, 2019
    Publication date: November 28, 2019
    Applicant: WiTricity Corporation
    Inventors: Andreas Daetwyler, Hans Peter Widmer, Lukas Sieber, Martin Ludwig Weber
  • Publication number: 20190093901
    Abstract: A method for detecting a cleaning need of a commercial cooking appliance with at least one cooking surface. The method includes the steps of capturing at least one image of at least a part of the cooking surface and/or at least a part of a cooking product, comparing the captured image of the part of the cooking surface with a prestored reference image of a contaminated cooking surface requiring cleaning and/or of the captured image of the part of the cooking product with a prestored reference image of the cooking product in a cooking status indicating a need for cleaning the cooking surface, and deciding, based on the result of the comparison, whether a cleaning is needed. A further aspect relates to a quality management monitoring system as well as a commercial appliance with a quality management monitoring system.
    Type: Application
    Filed: March 20, 2017
    Publication date: March 28, 2019
    Inventor: Ludwig Weber
  • Patent number: 8415584
    Abstract: A description is given of a modular laser processing system (10) for processing a workpiece (20) by means of a processing laser beam (14), which system has a multiplicity of functional modules (100) with a beam passage region (102) which can be connected to one another in series along a processing laser beam path, comprising a functional module (100) embodied as a fiber connection module (104) and serving for accommodating a fiber end from which the processing laser beam (14) emerges, and a functional module (100) embodied as a collimator module (106) and having a collimator lens (16a, 16b, 16c), which collimates the processing laser beam (14), wherein the collimator lens (16a, 16b, 16c) is selected from a group of collimator lenses having different focal lengths which correspond to a raster dimension (L1) or to an integer multiple thereof, characterized in that the length (A) of the beam passage region (102) of a functional module (100) along the processing laser beam path corresponds to the raster dimension
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: April 9, 2013
    Assignee: Precitec KG
    Inventors: Bert Schuermann, Ludwig Weber
  • Publication number: 20100072180
    Abstract: Modular laser processing system and functional module A description is given of a modular laser processing system (10) for processing a workpiece (20) by means of a processing laser beam (14), which system has a multiplicity of functional modules (100) with a beam passage region (102) which can be connected to one another in series along a processing laser beam path, comprising a functional module (100) embodied as a fibre connection module (104) and serving for accommodating a fibre end from which the processing laser beam (14) emerges, and a functional module (100) embodied as a collimator module (106) and having a collimator lens (16a, 16b, 16c), which collimates the processing laser beam (14), wherein the collimator lens (16a, 16b, 16c) is selected from a group of collimator lenses having different focal lengths which correspond to a raster dimension (L1) or to an integer multiple thereof, characterized in that the length (A) of the beam passage region (102) of a functional module (100) along the processi
    Type: Application
    Filed: September 8, 2009
    Publication date: March 25, 2010
    Inventors: Bert SCHUERMANN, Ludwig Weber
  • Patent number: 6614002
    Abstract: A laser machining head for machining a workpiece by a laser beam having a housing which has an inlet opening and an outlet opening between which a passage is constructed for the laser beam through which is led a working beam pathway; focusing optics for focusing the laser beam into a working focus which is located outside the housing at a distance from the outlet opening; a sensor arrangement, and a beam deflecting device. In order to provide a laser beam machining head which, whilst having fixed and compact external dimensions, enables a simple adaptation of the sensors to the respective machining tasks, the sensor arrangement comprises a sensor module arranged in a side wall of the housing next to the laser beam through passage; and the radiation diverting device directs the radiation, coming from a zone of interaction determined by the working focus, onto sensors of the sensor arrangement so that at least one portion of the radiation can be detected for monitoring the machining of a workpiece.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: September 2, 2003
    Assignee: Precitec KG
    Inventor: Ludwig Weber
  • Publication number: 20020088783
    Abstract: A laser machining head for machining a workpiece by a laser beam having a housing which has an inlet opening and an outlet opening between which a passage is constructed for the laser beam through which is led a working beam pathway; focusing optics for focusing the laser beam into a working focus which is located outside the housing at a distance from the outlet opening; a sensor arrangement, and a beam deflecting device. In order to provide a laser beam machining head which, whilst having fixed and compact external dimensions, enables a simple adaptation of the sensors to the respective machining tasks, the sensor arrangement comprises a sensor module arranged in a side wall of the housing next to the laser beam through passage; and the radiation diverting device directs the radiation, coming from a zone of interaction determined by the working focus, onto sensors of the sensor arrangement so that at least one portion of the radiation can be detected for monitoring the machining of a workpiece.
    Type: Application
    Filed: December 4, 2001
    Publication date: July 11, 2002
    Inventor: Ludwig Weber
  • Patent number: 6011179
    Abstract: A process for the production of primary and/or secondary amines from imines or nitriles, comprising an aminating hydrogenation of imine or of nitrile with hydrogen in the presence of ammonia, of a hydrogenation catalyst based on cobalt, nickel, ruthenium or mixtures of these metals and of a base, at a temperature within the range of 50.degree. C. to 200.degree. C. and at a pressure within the range of 0.3 to 30 MPa. The yield of amine is increased by the use of a quaternary ammonium hydroxide as base. Preferably a tetraalkylammonium hydroxide is used in a quantity of from 0.01 to 100 mMol per mol of amine or of nitrile. The process is suitable in particular for the production of isophoronediamine from isophorone nitrile imine.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: January 4, 2000
    Assignee: Degussa-Huls AG
    Inventors: Thomas Haas, Karl Ludwig Weber, Klaus Stadtmuller, Willi Hofen, Rudolf Vanheertum
  • Patent number: 5852217
    Abstract: This invention relates to a process for the production of primary and/or secondary amines from oxo compounds by catalytic imination of the oxo compound with ammonia or a primary amine and subsequent hydrogenation. Imination proceeds according to the invention in the presence of a novel imination catalyst, namely an organopolysiloxane containing sulphonate groups. This imination catalyst is distinguished by elevated activity. The process is in particular suitable for the production of isophorone diamine from isophorone nitrile, wherein it has proved possible to reduce the content of secondary products and to increase yield.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: December 22, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Thomas Haas, Dietrich Arntz, Karl-Ludwig Weber, Willi Hofen, Stefan Wieland
  • Patent number: 5679860
    Abstract: A process for producing 3-aminomethyl-3,5,5-trimethylcyclohexyl amine (isophorone diamine) from isophorone nitrile. Isophorone nitrile is iminated in a first stage and then the reaction mixture is subjected to aminating hydrogenation in a second stage in the presence of a fixed bed hydrogenation catalyst based on Raney cobalt. The fixed bed hydrogenation catalyst is produced in a special manner by mixing a powdery Co--containing Raney alloy with powdery cobalt, sintering the powdery mixture to shaped moldings and then activating by leaching with alkali hydroxide solution. The yield and/or space-time yield in isophorone diamine production can be increased.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: October 21, 1997
    Assignee: Degussa Aktiengesellschaft
    Inventors: Thomas Haas, Roland Burmeister, Dietrich Arntz, Karl-Ludwig Weber, Monika Berweiler
  • Patent number: 5258515
    Abstract: The invention relates to aqueous solutions of sodium salts of trimercapto-s-triazine whose molar saturation concentration at 0.degree. C. to 40.degree. C. is above the saturation concentration of trimercapto-s-triazine trisodium salt (TMT-Na.sub.3). More than two but less than three hydrogen atoms of the trimercapto-s-triazine are replaced by sodium ions. The solutions preferably contain trimercapto-s-triazine disodium salt (TMT-Na.sub.2) in addition to a little TMT-Na.sub.3. Surprisingly, the water solubility of TMT-Na.sub.2 is greater than that of TMT-Na.sub.3. The solutions represent a suitable supply form for the active substance trimercapto-s-triazine (TMT-H.sub.3) used in the separation of heavy metals The preparation takes place by means of reacting TMT-Na.sub.3 with TMT-H.sub.3 in a molar ratio of 1:greater than 0-less than 0.5, especially 1:0.1 to 1:<0.5 in aqueous solution.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: November 2, 1993
    Assignee: Degussa Aktiengesellschaft
    Inventors: Klaus Hentschel, Marc Samson, Marcel Vingerhoets, Karl-Ludwig Weber
  • Patent number: 5075444
    Abstract: The disodium salt of trimercapto-s-triazine hexahydrate (TMT-Na.sub.2.6H.sub.2 O) which has a considerably higher water solubility than previously known TMT sodium salts. It is used for separating heavy metals from aqueous phase, especially from waste water.TMT-Na.sub.2.6H.sub.2 O is prepared by reacting TMT-Na.sub.3 .9H.sub.2 O, available from cyanuric chloride, with trimercapto-s-triazine (TMT-Ha.sub.3) in a molar ratio of 2-2.1 to 1 in aqueous medium with subsequent crystallization of the TMT-Na.sub.2 .6H.sub.2 O.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: December 24, 1991
    Assignee: Degussa AG
    Inventors: Klaus Hentschel, Marc Samson, Marcel Vingerhoets, Karl-Ludwig Weber
  • Patent number: D1003955
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: November 7, 2023
    Assignee: Precitec GmbH & Co. KG
    Inventors: Ludwig Weber, Christian Loose, Georg Spörl