Patents by Inventor Klaus Feisst
Klaus Feisst 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: 11796375Abstract: A radar-based fill-level measuring device, comprises the following parts: a semiconductor component for producing electrical high-frequency signals or for determining the fill-level value from the received high-frequency signals; a dielectric waveguide placed in contact with the semiconductor component to couple the high-frequency signals as radar signals into an antenna and/or to couple received radar signals from the antenna as electrical signals into the semiconductor component; a potting encapsulation, which encapsulates at least the waveguide radially such that a defined cavity is formed between the waveguide and the potting encapsulation.Type: GrantFiled: November 13, 2019Date of Patent: October 24, 2023Assignee: Endress+Hauser SE+Co. KGInventors: Mayer Winfried, Klaus Feißt, Qi Chen, Ralf Reimelt, Thomas Blödt
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Publication number: 20220049984Abstract: A radar-based fill-level measuring device, comprises the following parts: a semiconductor component for producing electrical high-frequency signals or for determining the fill-level value from the received high-frequency signals; a dielectric waveguide placed in contact with the semiconductor component to couple the high-frequency signals as radar signals into an antenna and/or to couple received radar signals from the antenna as electrical signals into the semiconductor component; a potting encapsulation, which encapsulates at least the waveguide radially such that a defined cavity is formed between the waveguide and the potting encapsulation.Type: ApplicationFiled: November 13, 2019Publication date: February 17, 2022Inventors: Mayer Winfried, Klaus Feißt, Qi Chen, Ralf Reimelt, Thomas Blödt
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Patent number: 11187570Abstract: The present disclosure relates to a radar-based fill-level measurement device for measuring a fill level of a fill substance located in a container. Besides a housing, the device includes an antenna and a housing neck, which is arranged between the housing and the antenna, wherein the housing neck has between the housing and the antenna a predefined thermal resistance, and at least one electronics module partially arranged in the housing neck. The thermal resistance of the housing neck is dimensioned in such a manner to be low, such that, at a temperature in the container of at least 200° C., the temperature at the electronics module is limited to, at most, 80° C. Thus, a high resolution and temperature-resistant and simultaneously compact, fill-level measurement device is provided for high radar frequencies of, for example, 79 GHz.Type: GrantFiled: November 22, 2017Date of Patent: November 30, 2021Assignee: Endress+Hauser SE+Co. KGInventor: Klaus Feisst
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Publication number: 20210293602Abstract: The disclosure relates to a radar-based, fill level measurement device for determining a fill level of a fill substance located in a container. The fill level measurement device includes a high frequency unit for producing high frequency signals and for determining fill level based on received high frequency signals. A hollow conductor is provided for transmitting or receiving high frequency signals. The hollow conductor is subdivided into a first portion facing the high frequency unit, and a second portion faceable toward the fill substance, wherein an insulation transparent for the high frequency signals separates the first portion fluidically from the second portion. A first hollow space is connected fluidically with the second portion and the first hollow space is arranged relative to the second portion behind the insulation. Thus condensate formation on the insulation is prevented, so that the functioning of fill level measurement device is not degraded.Type: ApplicationFiled: June 13, 2019Publication date: September 23, 2021Inventors: Klaus Pankratz, Rolf Schwald, Klaus Feisst
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Publication number: 20200088562Abstract: The present disclosure relates to a radar-based fill-level measurement device for measuring a fill level of a fill substance located in a container. Besides a housing, the device includes an antenna and a housing neck, which is arranged between the housing and the antenna, wherein the housing neck has between the housing and the antenna a predefined thermal resistance, and at least one electronics module partially arranged in the housing neck. The thermal resistance of the housing neck is dimensioned in such a manner to be low, such that, at a temperature in the container of at least 200° C., the temperature at the electronics module is limited to, at most, 80° C. Thus, a high resolution and temperature-resistant and simultaneously compact, fill-level measurement device is provided for high radar frequencies of, for example, 79 GHz.Type: ApplicationFiled: November 22, 2017Publication date: March 19, 2020Inventor: Klaus Feisst
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Patent number: 10371556Abstract: A device for determining or monitoring the filling level of a filling material stored in a container in a process, comprising a signal generating unit, a coupling/decoupling unit which couples the high-frequency measurement signals to an antenna unit or decouples said high-frequency measurement signals from the antenna unit. The antenna unit has a wave guide and an antenna element which widens in the direction of the filling material. The antenna unit emits high-frequency measurement signals in the direction of the surface and receives the echo signals reflected by the surface of the filling material. A control/evaluation unit determines the filling level of the filling material in the container from the transit time of the measurement signals.Type: GrantFiled: January 16, 2015Date of Patent: August 6, 2019Assignee: ENDRESS+HAUSER SE+CO.KGInventors: Klaus Feisst, Eric Bergmann
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Patent number: 10113899Abstract: An apparatus for determining or monitoring the fill level of a fill substance located in a container in a process, comprising: a signal producing unit; an in-coupling/out-coupling unit an antenna unit; wherein the antenna unit has a hollow conductor and an antenna element widening toward the fill substance and the antenna unit transmits high-frequency measuring signals in the direction of the surface of the fill substance and receives echo signals reflected on the surface of the fill substance; and a control/evaluation unit, which ascertains the fill level of the fill substance in the container based on travel time of the measuring signals. In or on the antenna unit a process isolation is provided, which is at least approximately transparent for the high-frequency measuring signals and which protects the in-coupling/out-coupling unit against influences of the process.Type: GrantFiled: November 3, 2014Date of Patent: October 30, 2018Assignee: ENDRESS+HAUSER SE+CO. KGInventors: Eric Bergmann, Klaus Feisst, Sr.
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Patent number: 9719832Abstract: The invention relates to an apparatus for determining or monitoring a physical or chemical, process variable, comprising a sensor element (2) having at least one temperature sensitive, sensor region and/or an electronics unit (3) having at least one component (4), whose specification requires use within a predetermined temperature range, wherein a connecting component (5) is provided between the temperature sensitive, sensor region and the remaining regions of the sensor element (2) and/or between the sensor element (2) and the electronics unit (3), wherein the connecting component (5) is composed at least partially of a metal- or ceramic foam (6) having a predetermined porosity.Type: GrantFiled: June 2, 2015Date of Patent: August 1, 2017Assignee: Endress + Hauser GmbH + Co. KGInventors: Peter Klofer, Klaus Feisst
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Publication number: 20170010142Abstract: A device for determining or monitoring the filling level of a filling material stored in a container in a process, comprising a signal generating unit, a coupling/decoupling unit which couples the high-frequency measurement signals to an antenna unit or decouples said high-frequency measurement signals from the antenna unit. The antenna unit has a wave guide and an antenna element which widens in the direction of the filling material. The antenna unit emits high-frequency measurement signals in the direction of the surface and receives the echo signals reflected by the surface of the filling material. A control/evaluation unit determines the filling level of the filling material in the container from the transit time of the measurement signals.Type: ApplicationFiled: January 16, 2015Publication date: January 12, 2017Inventors: Klaus Feisst, Eric Bergmann
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Publication number: 20160273954Abstract: An apparatus for determining or monitoring the fill level of a fill substance located in a container in a process, comprising: a signal producing unit; an in-coupling/out-coupling unit an antenna unit; wherein the antenna unit has a hollow conductor and an antenna element widening toward the fill substance and the antenna unit transmits high-frequency measuring signals in the direction of the surface of the fill substance and receives echo signals reflected on the surface of the fill substance; and a control/evaluation unit, which ascertains the fill level of the fill substance in the container based on travel time of the measuring signals. In or on the antenna unit a process isolation is provided, which is at least approximately transparent for the high-frequency measuring signals and which protects the in-coupling/out-coupling unit against influences of the process.Type: ApplicationFiled: November 3, 2014Publication date: September 22, 2016Inventors: Eric Bergmann, Klaus Feisst, Sr.
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Patent number: 9442000Abstract: A method for ascertaining and monitoring fill level of a medium in a container using a travel time measuring method, wherein transmission signals are transmitted toward the medium and reflection signals are received. The received reflection signals are registered as echo signals in an echo function dependent on travel time. Based on known measuring device- and container-specific reflection planes, possible reflection regions in the echo function are calculated by means of an evaluation algorithm. In the calculated reflection regions, the disturbance echo signals and/or the multiecho signals in the echo function are classified, wherein non-classified reflection signals are ascertained and checked as wanted echo signals by means of a search algorithm, wherein, from a position and/or an amplitude of at least one wanted echo signal, fill level is determined, and wherein the measured value of fill level is output.Type: GrantFiled: August 29, 2011Date of Patent: September 13, 2016Assignee: ENDRESS + HAUSER GMBH + CO. KGInventors: Edgar Schmitt, Dietmar Spanke, Alexey Malinovskiy, Stefan Gorenflo, Klaus Feisst
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Publication number: 20150346016Abstract: The invention relates to an apparatus for determining or monitoring a physical or chemical, process variable, comprising a sensor element (2) having at least one temperature sensitive, sensor region and/or an electronics unit (3) having at least one component (4), whose specification requires use within a predetermined temperature range, wherein a connecting component (5) is provided between the temperature sensitive, sensor region and the remaining regions of the sensor element (2) and/or between the sensor element (2) and the electronics unit (3), wherein the connecting component (5) is composed at least partially of a metal- or ceramic foam (6) having a predetermined porosity.Type: ApplicationFiled: June 2, 2015Publication date: December 3, 2015Inventors: Peter Klofer, Klaus Feisst
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Patent number: 9110165Abstract: An apparatus forming a measuring device for ascertaining and monitoring a chemical or physical process variable in a high temperature process in a container, wherein the measuring device is formed from at least a sensor element located in the process and at least a measurement transmitter located outside the process. At least a first sealing element is provided for sealing against penetration of process medium into the sensor element. The sensor element has a boundary location between a first sensor element region, which faces the process and which is embodied with a high thermal resistance, and a second sensor element region, which faces away from the process and which has a low thermal resistance, and that the temperature sensitive element is arranged in the sensor element at the boundary location.Type: GrantFiled: July 21, 2010Date of Patent: August 18, 2015Assignee: ENDRESS + HAUSER GMBH + CO. KGInventors: Klaus Feisst, Eric Bergmann
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Patent number: 9000775Abstract: A fill-level measuring device for ascertaining and monitoring fill level of a medium located in the process space of a container by means of a microwave travel time measuring method. The device comprises a measurement transmitter and an antenna unit, which is constructed at least of a hollow conductor and a radiating element A microwave transmissive, process isolating element is inserted for process isolation into the hollow conductor between the measurement transmitter and the horn shaped radiating element contacting the process space. The process isolating element is embodied as a hollow body having at least one tubular hollow body region matched to the shape of the hollow conductor, and a pointed hollow body region neighboring the hollow body region in the direction of the radiating element and having a wall thickness selected based on reflection, or lack thereof, of the microwave signals.Type: GrantFiled: July 1, 2011Date of Patent: April 7, 2015Assignee: Endress + Hauser GmbH + Co. KGInventors: Qi Chen, Eric Bergmann, Klaus Feisst
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Publication number: 20130113500Abstract: A fill-level measuring device for ascertaining and monitoring fill level of a medium located in the process space of a container by means of a microwave travel time measuring method. The device comprises a measurement transmitter and an antenna unit, which is constructed at least of a hollow conductor and a radiating element A microwave transmissive, process isolating element is inserted for process isolation into the hollow conductor between the measurement transmitter and the horn shaped radiating element contacting the process space.Type: ApplicationFiled: June 1, 2011Publication date: May 9, 2013Applicant: Endress + Hauser GmbH + Co. KGInventors: Qi Chen, Eric Bergmann, Klaus Feisst
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Publication number: 20120186339Abstract: An apparatus forming a measuring device for ascertaining and monitoring a chemical or physical process variable in a high temperature process in a container, wherein the measuring device is formed from at least a sensor element located in the process and at least a measurement transmitter located outside the process. At least a first sealing element is provided for sealing against penetration of process medium into the sensor element. The sensor element has a boundary location between a first sensor element region, which faces the process and which is embodied with a high thermal resistance, and a second sensor element region, which faces away from the process and which has a low thermal resistance, and that the temperature sensitive element is arranged in the sensor element at the boundary location.Type: ApplicationFiled: July 21, 2010Publication date: July 26, 2012Applicant: Endress + Hauser GmbH + Co. KGInventors: Klaus Feisst, Eric Bergmann
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Patent number: 7999725Abstract: A fill level measuring device for ascertaining and monitoring fill level of a medium in the process space of a container by means of a microwave travel time measuring method. The device includes: measurement transmitter; and an antenna unit, which is constructed at least of a hollow conductor and a radiating element, wherein a process isolation element is inserted into the hollow conductor for process isolation between measurement transmitter and the process contacting, radiating element. The process isolation element is made of a ceramic material and includes at least one glass layer, via which the process isolation element is directly glass bonded in the hollow conductor in a glass bonding region.Type: GrantFiled: December 6, 2007Date of Patent: August 16, 2011Assignee: Endress + Hauser GmbH + Co. KGInventors: Klaus Feisst, Eric Bergmann
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Patent number: 7864104Abstract: The invention relates to an apparatus (1) for ascertaining and monitoring fill level (2) of a medium (3) in a container (4) by means of a travel-time measuring method of high-frequency measurement signals (6) with a horn antenna (7) having a waveguide section (8), a flared, horn section (9) and a cavity (11) filled, at least partially, with a dielectric filling body (12). Object of the invention is to provide a simple, temperature-stable, horn antenna filled with a dielectric material.Type: GrantFiled: April 27, 2006Date of Patent: January 4, 2011Assignee: Endress + Hauser GmbH + Co. KGInventors: Qi Chen, Klaus Feisst, Eric Bergmann
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Publication number: 20100141505Abstract: A fill level measuring device for ascertaining and monitoring fill level of a medium in the process space of a container by means of a microwave travel time measuring method. The device includes: measurement transmitter; and an antenna unit, which is constructed at least of a hollow conductor and a radiating element, wherein a process isolation element is inserted into the hollow conductor for process isolation between measurement transmitter and the process contacting, radiating element. The process isolation element is made of a ceramic material and includes at least one glass layer, via which the process isolation element is directly glass bonded in the hollow conductor in a glass bonding region.Type: ApplicationFiled: December 6, 2007Publication date: June 10, 2010Applicant: ENDRESS + HAUSER GMBH + CO.KGInventors: Eric Bergmann, Klaus Feisst
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Publication number: 20090212996Abstract: The invention relates to an apparatus (1) for ascertaining and monitoring fill level (2) of a medium (3) in a container (4) by means of a travel-time measuring method of high-frequency measurement signals (6) with a horn antenna (7) having a waveguide section (8), a flared, horn section (9) and a cavity (11) filled, at least partially, with a dielectric filling body (12). Object of the invention is to provide a simple, temperature-stable, horn antenna filled with a dielectric material.Type: ApplicationFiled: April 27, 2006Publication date: August 27, 2009Applicant: Endress + Hauser GmbH + Co., KGInventors: Qi Chen, Klaus Feisst, Eric Bergmann