Patents by Inventor Hans-Arndt Freudigmann
Hans-Arndt Freudigmann 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: 12152732Abstract: A tank device for temperature pressure relief in a fuel cell tank, the tank device comprising at least two tank containers and a supply line which can be connected to the tank containers, each of the at least two tank containers having at least one shutoff valve at one end, the shutoff valve being arranged between the respective tank container and the supply line. At least one safety valve is arranged at another end of the tank container, wherein at least the at least two tank containers and the respective safety valve are at least almost completely enclosed by a housing element and/or are encapsulated from an environment. A positive pressure prevails in the housing element, wherein the housing element contains a temperature-sensitive material, wherein the meltable medium of the safety valve melts when the pressure prevailing in the inner space falls, and thus opens the safety valve.Type: GrantFiled: October 1, 2021Date of Patent: November 26, 2024Assignee: Robert Bosch GmbHInventors: Hans-Arndt Freudigmann, Bernd Stuke, Olaf Ohlhafer
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Patent number: 12104700Abstract: A shut-off valve for a pressurized-gas vessel includes a valve closing body which can perform stroke movements and is preloaded by the spring force of a closing spring against a valve seat. When the valve closing body is in a closed position, a connection of a valve inlet to a valve outlet is shut off. The shut-off valve includes an actuator arrangement for opening the valve closing body. The actuator arrangement interacts with an actuating element which is arranged spaced apart from and coaxial with respect to the valve closing body and which is movable by the actuator arrangement in the direction of the valve closing body. When the actuating element abuts against the valve closing body, an opening impulse can be generated.Type: GrantFiled: April 14, 2021Date of Patent: October 1, 2024Assignee: Robert Bosch GmbHInventors: Olaf Ohlhafer, Bernd Stuke, Hans-Arndt Freudigmann
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Publication number: 20240102618Abstract: Disclosed is a tank device (1) for temperature pressure relief in a hydrogen tank, the tank device (1) comprising at least two tank containers (10) and a supply line (4) that can be connected to the tank containers (10). Each of the at least two tank containers (10) includes at least one shut-off valve (8) at one end (26), said shut-off valve (8) being located between the tank container (10) and the supply line (4). Furthermore, the tank containers (10) are entirely surrounded by a housing element (12) and/or encapsulated, in particular pressure-tightly, towards the surroundings (120) by means of the housing element (12), and at least one sacrificial container (14) is arranged in the tank device (1), said sacrificial container (14) being fluidically connected to the tank containers (10) via a pressure relief valve (13).Type: ApplicationFiled: November 22, 2021Publication date: March 28, 2024Inventors: Hans-Arndt Freudigmann, Bernd Stuke, Olaf Ohlhafer
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Publication number: 20230400156Abstract: A tank device for temperature pressure relief in a fuel cell tank, the tank device comprising at least two tank containers and a supply line which can be connected to the tank containers, each of the at least two tank containers having at least one shutoff valve at one end, the shutoff valve being arranged between the respective tank container and the supply line. At least one safety valve is arranged at another end of the tank container, wherein at least the at least two tank containers and the respective safety valve are at least almost completely enclosed by a housing element and/or are encapsulated from an environment. A positive pressure prevails in the housing element, wherein the housing element contains a temperature-sensitive material, wherein the meltable medium of the safety valve melts when the pressure prevailing in the inner space falls, and thus opens the safety valve.Type: ApplicationFiled: October 1, 2021Publication date: December 14, 2023Inventors: Hans-Arndt Freudigmann, Bernd Stuke, Olaf Ohlhafer
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Publication number: 20230389534Abstract: Method for providing control data for an application vehicle (12) when selectively applying pesticides, comprising the following steps: providing (S10) location data of sub-areas (13, 14) of a field (10) to which at least one first pesticide has been applied in a first application; determining (S20) transition areas (20) associated with the sub-areas (13, 14) to which the at least one first pesticide has been applied and the adjacent areas to which the at least one first pesticide has not been applied, based on the provided sub-area location data; providing (S30) control data for controlling an application vehicle (12) for applying at least one second pesticide to the determined transition areas (20) in a second application.Type: ApplicationFiled: October 20, 2021Publication date: December 7, 2023Inventors: Clemens Christian DELATREE, Hans-Arndt FREUDIGMANN
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Publication number: 20230213098Abstract: The invention relates to a shut-off valve (1) for a pressurized-gas vessel, comprising a valve closing body (2) which can perform stroke movements and which is preloaded by the spring force of a closing spring (3) against a valve seat (4), such that, when the valve closing body (2) is in a closed position, a connection of a valve inlet (5) to a valve outlet (6) is shut off, and furthermore comprising an actuator arrangement (7) for opening the valve closing body (2). According to the invention, the actuator arrangement (7) interacts with an actuating element (8) which is arranged spaced apart from and coaxial with respect to the valve closing body (2) and which is movable by means of the actuator arrangement (7) in the direction of the valve closing body (2), such that, when the actuating element (8) abuts against the valve closing body (2), an opening impulse can be generated. The invention furthermore relates to a pressurized-gas vessel having a shut-off valve (1) according to the invention.Type: ApplicationFiled: April 14, 2021Publication date: July 6, 2023Inventors: Olaf Ohlhafer, Bernd Stuke, Hans-Arndt Freudigmann
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Publication number: 20230141803Abstract: A method for dispensing at least one liquid medium with the aid of a spray nozzle unit, in particular for agricultural purposes. The spray nozzle unit includes at least one spray nozzle via which the medium is dispensed, and at least one sensor device via which a biomass, in particular weeds, is/are recognized. With knowledge of the location of the biomass, the at least one spray nozzle is activated in order to dispense the medium onto the biomass.Type: ApplicationFiled: April 19, 2021Publication date: May 11, 2023Inventors: Hans-Arndt Freudigmann, Johanna Link-Dolezal, Philip Nagel, Tillmann Falck
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Publication number: 20210176976Abstract: A method is provided for monitoring and/or controlling a deployment process of a spray liquid having a defined active agent concentration at at least one spray nozzle unit of a spray device for deploying the spray liquid for agricultural purposes. The method includes: receiving at least one property signal including a piece of property information of the spray liquid detected with the aid of a sensor unit of the spray device in a through-flow area of the spray nozzle unit, an active agent concentration in the spray liquid being ascertainable using the property information; and outputting an information signal to a display unit and/or a control signal to the spray nozzle unit as a function of the received property information of the spray liquid and/or of an active agent concentration in the spray liquid ascertained using the property information, in order to monitor and/or to control the deployment process.Type: ApplicationFiled: October 26, 2018Publication date: June 17, 2021Inventors: Jochen Glasbrenner, Olaf Ohlhafer, Hans-Arndt Freudigmann
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Publication number: 20200305408Abstract: A method for detecting at least one spray liquid data set of a spray liquid applied to an agricultural area using at least one spray nozzle unit of a spraying device. The method includes receiving a property signal, including a piece of property information of the spray liquid detected using a sensor unit of the spraying device in a through-flow area of the spray nozzle unit during an application operation of the spray liquid; receiving a position signal, including a piece of position information of the spray liquid, using a position unit, the position information representing a geographic position of the spray liquid during the application operation of the spray liquid; and storing the property information and/or a piece of spray liquid information of the applied spray liquid ascertained using the property information, together with the associated position information, using an information unit, for detecting the spray liquid data set.Type: ApplicationFiled: October 16, 2018Publication date: October 1, 2020Inventors: Bernd Stuke, Hans-Arndt Freudigmann, Helmut Schomburg, Olaf Ohlhafer, Steffen Sies
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Publication number: 20200281185Abstract: The invention relates to a discharge unit (10?) for discharging a final liquid having a defined final mixing ratio, in particular for agricultural purposes, having a first pre-mixing unit (12), which is designed to mix a first liquid with a first carrier liquid, in particular water, to form a first pre-diluted liquid having a first defined pre-mixing ratio, a second pre-mixing unit (14), which is designed to mix a second liquid with a second carrier liquid, in particular water, to form a second pre-diluted liquid having a second defined pre-mixing ratio, and a final mixing unit (20), which is designed to mix the first pre-diluted liquid with the second pre-diluted liquid to form the final liquid to be discharged having a defined final mixing ratio.Type: ApplicationFiled: June 11, 2018Publication date: September 10, 2020Inventors: Hans-Arndt Freudigmann, Jochen Glasbrenner, Olaf Ohlhafer, Oliver Meil, Bernd Stuke, Helmut Schomburg
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Publication number: 20200260715Abstract: A method for monitoring and/or adjusting an active agent concentration in a spray liquid to be deployed via a spray device for agricultural purposes, an active agent and a carrier liquid being fed to a mixing unit of the spray device in order to blend the spray liquid. The method includes: receiving a first property signal including a piece of property information of the blended spray liquid detected using a first sensor unit, to ascertain an actual value of the property information of the spray liquid; receiving a second property signal including the piece of property information of the supplied carrier liquid detected using a second sensor unit of the spray device to ascertain a base value of the property information of the carrier liquid; and outputting an information signal to a display unit and/or a control signal to a delivery unit of the spray device.Type: ApplicationFiled: October 19, 2018Publication date: August 20, 2020Applicant: Robert Bosch GmbHInventors: Bernd Stuke, Helmut Schomburg, Olaf Ohlhafer, Steffen Sies, Hans-Arndt Freudigmann
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Publication number: 20200253185Abstract: A spray device for deploying liquids, in particular for agricultural purposes. The spray device includes at least one spray nozzle for spraying the liquid and includes at least one mixing unit, which encompasses at least one mixing chamber. The mixing chamber includes at least one first inlet for a carrier liquid, at least one second inlet for an active agent liquid, and at least one outlet. The mixing unit encompasses at least one control member for setting a mixing ratio of carrier liquid and active agent liquid. The control member is rotatably mounted in the mixing chamber, a through-flow cross-section of at least the first inlet and/or the second inlet being set depending on the rotation position of the control member.Type: ApplicationFiled: October 26, 2018Publication date: August 13, 2020Inventors: Jochen Glasbrenner, Helmut Schomburg, Olaf Ohlhafer, Dieter Amesoeder, Hans-Arndt Freudigmann
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Publication number: 20200253184Abstract: A spraying device for deploying liquids for agricultural purposes. The spraying device includes at least one spray nozzle for spraying the liquid and at least one mixing device, which includes at least one mixing chamber, at least one first inflow for a carrier liquid, at least two second inflows for different active agent liquids, and at least one outflow connected to the spray nozzle, connecting to the mixing chamber. It is provided that an actuatable valve is associated with each of the inflows. A device is also provided which actuates the valves during intended use in such a way that a constant volume flow results in the outflow regardless of the actuation of the valves/switching of the inflows.Type: ApplicationFiled: October 26, 2018Publication date: August 13, 2020Inventors: Jochen Glasbrenner, Helmut Schomburg, Olaf Ohlhafer, Steffen Sies, Dieter Amesoeder, Hans-Arndt Freudigmann
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Publication number: 20200238322Abstract: A method for monitoring and/or modifying an active agent concentration in a spray liquid of a spray device including a plurality of spray nozzle units for deploying the spray liquid for agricultural purposes. The method includes receiving one property signal each including a piece of property information of the spray liquid detected with the aid of a sensor unit of the spray device in a through-flow area of one each of the spray nozzle units, an active agent concentration in the spray liquid being ascertainable using the piece of property information; and outputting an information signal to a display unit and/or a control signal to an intermixing unit and/or a delivery unit of the spray device as a function of the received piece of property information of the spray liquid and/or of an active agent concentration in the spray liquid ascertained using the piece of property information.Type: ApplicationFiled: October 19, 2018Publication date: July 30, 2020Inventors: Bernd Stuke, Helmut Schomburg, Olaf Ohlhafer, Steffen Sies, Hans-Arndt Freudigmann
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Publication number: 20200170236Abstract: A method for applying a spray agent is described, in particular, a plant protection product, onto an agricultural area to be treated with the aid of a spraying device, including a spray agent tank and at least one fluidic connecting line from the spray agent tank to a nozzle. The method includes the following steps: selectively applying the spray agent onto an initial section of the agricultural area, and subsequently extensively applying a residual amount of spray agent onto a residual section of the agricultural area using a predefined application amount in such a way that, upon completion of the treatment of the agricultural area, essentially the entire residual amount of spray agent has been applied.Type: ApplicationFiled: June 14, 2018Publication date: June 4, 2020Inventors: Hans-Arndt Freudigmann, Jochen Glasbrenner, Johanna Link-Dolezal, Olaf Ohlhafer