Patents by Inventor Jan Schaefer

Jan Schaefer 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: 11964570
    Abstract: In a method for operating an electric vehicle, including an electrical drive device for driving the vehicle, a control device for controlling the driving of the vehicle, a first energy storage device for supplying the control device with a first DC voltage, a second energy storage device for supplying the drive device with a second DC voltage, and an energy supply unit providing an output DC voltage, the first energy storage device is connected to the energy supply unit via a converter device, the second energy storage device is connected to the energy supply unit, the converter device converts the output DC voltage into the first DC voltage, a first power flow from the first energy storage device to the second energy storage device is prevented and a second power flow from the second energy storage device to the first energy storage device is prevented.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: April 23, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Jens Schäfer, Jan Becker, Gero Bockelmann, Matthias Hauck, Christian Schumann, Josef Schmidt
  • Patent number: 11959469
    Abstract: A method monitors the state of a device having a first drive cylinder for receiving hydraulic fluid and a first drive piston which is movably arranged in the first drive cylinder. The method determines a speed of the first drive piston, establishes a difference between the determined speed of the first drive piston and an expected speed of the first drive piston, and determines a faulty state as a function of the difference established between the determined speed of the first drive piston and the expected speed of the first drive piston.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: April 16, 2024
    Assignee: Putzmeister Engineering GmbH
    Inventors: Carl Wiesenack, Benjamin Hoelzle, Michael Schaefer, Wolf-Michael Petzold, Jan-Martin Veit, Wilhelm F. Hofmann
  • Patent number: 11959468
    Abstract: An apparatus for conveying thick matter has a drive cylinder for receiving hydraulic fluid, a drive piston, which is arranged in the drive cylinder, a conveying cylinder for receiving thick matter, a conveying piston, which is arranged in the conveying cylinder, and a piston rod, which is fastened to the drive piston for coupling motion together with the conveying piston. The drive cylinder has a rod-side opening for applying pressure to a rod side of the drive piston by way of hydraulic fluid and a crown-side opening for applying pressure to a crown side of the drive piston facing away from the rod side by the hydraulic fluid. A drive pump is designed to generate a drive volume flow having a drive pressure of hydraulic fluid for moving the drive piston. A pump connection is designed for variable connection of the drive pump to the rod-side opening or the crown-side opening for the flow of hydraulic fluid.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 16, 2024
    Assignee: Putzmeister Engineering GmbH
    Inventors: Wolf-Michael Petzold, Jan-Martin Veit, Michael Schaefer, Frederik Kort
  • Patent number: 11926963
    Abstract: A method for determining the dryness of a fibrous web, in particular a tissue web, during the production of the fibrous web, is carried out in a machine including a drying cylinder, in particular a Yankee cylinder, to which at least one, preferably two, dryer hoods are assigned, and a reel-up for winding up the fibrous web. The determination of the dryness of the fibrous web is carried out before the drying cylinder on the basis of measured values which describe the following variables: the amount of solids in the fiber web at the reel-up, the amount of water in the fiber web at the reel-up, and the amount of water which is evaporated in the dryer hood or hoods. A method for controlling or regulating a machine for producing a fibrous web, a computer program and computer program product are also provided.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 12, 2024
    Assignee: Voith Patent GmbH
    Inventors: Jan Achtermann, Marcus Schwier, Marco Popp, Juergen Schaefer
  • Publication number: 20230373729
    Abstract: In a method for calculating a bulk material conveying rate or a bulk material load of a vibratory conveyor machine, in which method raw measured data from the vibratory conveyor machine are acquired at at least two times with different load states by at least one acceleration, speed or travel sensor and raw measured data are then processed to give at least one vibration data feature from the list: amplitude, frequency and phase, provision is made to create and to store feature datasets consisting of at least one vibration data feature and to create a regression model on the basis thereof. Based on the created regression model and at least one current feature dataset, the current actual load or bulk material conveying rate of a vibratory conveyor machine is then ascertained and displayed.
    Type: Application
    Filed: September 1, 2021
    Publication date: November 23, 2023
    Applicant: SANDVIK MINING AND CONSTRUCTION DEUTSCHLAND GMBH
    Inventors: Viktor RAIS, Jan SCHÄFER
  • Patent number: 11407967
    Abstract: A device (1) for accommodating a disposable container (44) has a receptacle (10) with at least one receptacle wall (16) that defines an interior of the receptacle (10) for accommodating the disposable container (44). The device includes a temperature control unit for controlling the temperature of the receptacle wall (16). A lighting device (50) is located on an inner face of the receptacle wall (16) that faces the interior of the receptacle (10) and that has the temperature controlled by the temperature control unit. The lighting device (50) is designed to emit light into the interior of the receptacle (10).
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: August 9, 2022
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Jan Schaefer, Hannes Schmid
  • Patent number: 11378945
    Abstract: A method for operating a condition monitoring system of a vibrating machine in the form of a vibrating conveyor or a vibrating screen, it is provided that the condition monitoring system has at least one sensor designed for motion detection and/or acceleration detection, which is mounted on the vibrating machine. The sensor generates measurement data, which is further processed into characteristic values in a processing unit associated with the sensor. The characteristic values are stored as a data set or a plurality of data sets. The data sets and/or the data sets expanded to include metadata are transferred to a data storage and stored there. A knowledge base for an expert system is generated taking into account the information provided by the data sets and/or built on theoretical models.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: July 5, 2022
    Assignee: Schenck Process Europe GmbH
    Inventor: Jan Schaefer
  • Patent number: 11285410
    Abstract: A filtration system (1) has a filtration unit (2) with at least one filter element (4) for filtration of a fluid. The at least one filter element (4) has a main flow direction (C) for the fluid. The filtration unit (2) is configured to tilt the at least one filter element (4) around a tilting axis (B) to change an orientation of the main flow direction (C). A main unit (3) is fluidly connectable to the filtration unit (2) and includes a supply unit (18) configured to supply the fluid to the at least one filter element (4). A control unit is configured to control supplying and/or evacuating the fluid to/from the at least one filter element (4) and to control tilting of the at least one filter element (4) around the tilting axis (B).
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: March 29, 2022
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Jan Schaefer, Ganeshkumar Padmanabhan, Michael Huth, Ralf Korzuschek, Rolf Matthiesen
  • Publication number: 20210312726
    Abstract: An asset tracking system comprises a server (6), one or more first telematics devices (8) each carried by an asset, and one or more second telematics devices (10) each carried by a vehicle capable of transporting an asset. The server (6) comprises a communications device arranged to communicate with the one or more first telematics devices (8) and with the one or more second telematics devices (10). Each first telematics device (8) is configured to transmit asset travel data (12) to the server (6), and each second telematics device (10) is configured to transmit vehicle travel data (14) to the server (6). Each of the asset travel data (12) and vehicle travel data (14) comprise a plurality of data travel points each comprising a time stamp, position and a further motion-related parameter. The one or more first and second telematics devices (8,10) are each configured to communicate independently with the communications device of the server (6).
    Type: Application
    Filed: April 6, 2021
    Publication date: October 7, 2021
    Inventors: Jan Schäfer, Jan Bast-Löffler, Martin Marenz, Christian Meissner
  • Publication number: 20210023564
    Abstract: A configurable device (10) for the flexible provision of connections and/or functions in a biopharmaceutical process comprises a body (20) in which predefined pipe sections (22) and plug-in locations (24) are formed by recesses in the material of the body (20). The configurable device (10) further comprises a plurality of functional elements (26) which are adapted to be inserted into the plug-in locations (24).
    Type: Application
    Filed: March 13, 2019
    Publication date: January 28, 2021
    Inventor: Jan SCHAEFER
  • Patent number: 10766003
    Abstract: A presterilizable filtration system is provided and is to be disposed of after a single use. The system has a recirculation tank and a filtration module that are connected to each other in a circuit via a hose system that can be regulated by at least one valve. The valve has a disposable separate valve part that can be integrated in the hose system and a reusable actuator.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: September 8, 2020
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Lars Boettcher, Frank Guthof, Jan Schaefer, Isabelle Gay
  • Publication number: 20200240870
    Abstract: A mobile device for detecting the state parameters and operating parameters of vibrating machines, which comprise sensor units and an evaluation unit connected to the sensor units, the measurement data detected by the sensor units being wirelessly transmittable to the evaluation unit, and each sensor unit being equipped with at least three acceleration sensors oriented orthogonally to each other and an integrated circuit for processing the measurement data detected by the sensor units, it is provided that at least four sensor units form a sensor network, the sensor units being detachably fastenable at a distance from each other with an undetermined orientation/direction to the vibrating machine, and a local coordinate system being defined by the at least three acceleration sensor of a sensor unit.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicant: Schenck Process Europe GmbH
    Inventors: Jan SCHAEFER, Roland JOPSKI, Viktor RAIS, Dino BOHRMANN, Harald DITTRICH
  • Patent number: 10723989
    Abstract: The invention relates to a container device (1), comprising: a container receiving portion (4) for receiving a container; at least one valve (6) for controlling a flow of fluid in a fluid line connected to said container; a pump device (8) for generating a conveyor pressure of the fluid in the fluid line; a control device (10) which can be connected to the valve (6) and/or the pump device (8) in order to control the valve (6) and/or pump device (8); and a frame (2) which supports said container receiving portion (4), valve (6), pump device (8) and control device (10).
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: July 28, 2020
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Jan Schaefer, Christian Manzke, Etienne Evrard
  • Patent number: 10618010
    Abstract: A clamping device (1) is provided for cartridge filtration modules (2) that have a distribution plate (3) with a feed channel (18), a retentate channel (21), a filtrate channel, and a first contact surface (8). At least one filter cartridge can be clamped between a contact surface (8) of the distribution plate (3) and a clamping surface (29) of a clamping plate (4) that can be moved orthogonally to the contact surface (8). The cartridge filtration modules (2) can be stacked on one another in an area of their distribution plates (3). A common distribution plate (3) for adjacent filter cartridge arrangements can clamped against the contact surface (8). Adjacent filter cartridge arrangements can be connected in a parallel circuit via the distribution plate (3), and the cartridge filtration modules (2) that can be stacked on top of one another can be connected in series via the distribution plates (3).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: April 14, 2020
    Assignee: Satorius Stedim Biotech GmbH
    Inventors: Mohammed Saeed Ajam, Jan Schaefer
  • Publication number: 20190265689
    Abstract: A method for operating a condition monitoring system of a vibrating machine in the form of a vibrating conveyor or a vibrating screen, it is provided that the condition monitoring system has at least one sensor designed for motion detection and/or acceleration detection, which is mounted on the vibrating machine. The sensor generates measurement data, which is further processed into characteristic values in a processing unit associated with the sensor. The characteristic values are stored as a data set or a plurality of data sets. The data sets and/or the data sets expanded to include metadata are transferred to a data storage and stored there. A knowledge base for an expert system is generated taking into account the information provided by the data sets and/or built on theoretical models.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Applicant: Schenck Process Europe GmbH
    Inventor: Jan SCHAEFER
  • Publication number: 20190083910
    Abstract: A filtration system (1) has a filtration unit (2) with at least one filter element (4) for filtration of a fluid. The at least one filter element (4) has a main flow direction (C) for the fluid. The filtration unit (2) is configured to tilt the at least one filter element (4) around a tilting axis (B) to change an orientation of the main flow direction (C). A main unit (3) is fluidly connectable to the filtration unit (2) and includes a supply unit (18) configured to supply the fluid to the at least one filter element (4). A control unit is configured to control supplying and/or evacuating the fluid to/from the at least one filter element (4) and to control tilting of the at least one filter element (4) around the tilting axis (B).
    Type: Application
    Filed: September 19, 2018
    Publication date: March 21, 2019
    Inventors: Jan Schaefer, Ganeshkumar Padmanabhan, Michael Huth, Ralf Korzuschek, Rolf Matthiesen
  • Publication number: 20180361322
    Abstract: A clamping device (1) is provided for cartridge filtration modules (2) that have a distribution plate (3) with a feed channel (18), a retentate channel (21), a filtrate channel, and a first contact surface (8). At least one filter cartridge can be clamped between a contact surface (8) of the distribution plate (3) and a clamping surface (29) of a clamping plate (4) that can be moved orthogonally to the contact surface (8). The cartridge filtration modules (2) can be stacked on one another in an area of their distribution plates (3). A common distribution plate (3) for adjacent filter cartridge arrangements can clamped against the contact surface (8). Adjacent filter cartridge arrangements can be connected in a parallel circuit via the distribution plate (3), and the cartridge filtration modules (2) that can be stacked on top of one another can be connected in series via the distribution plates (3).
    Type: Application
    Filed: November 17, 2016
    Publication date: December 20, 2018
    Inventors: Mohammed Saeed Ajam, Jan Schaefer
  • Publication number: 20180334645
    Abstract: A device (1) for accommodating a disposable container (44) has a receptacle (10) with at least one receptacle wall (16) that defines an interior of the receptacle (10) for accommodating the disposable container (44). The device includes a temperature control unit for controlling the temperature of the receptacle wall (16). A lighting device (50) is located on an inner face of the receptacle wall (16) that faces the interior of the receptacle (10) and that has the temperature controlled by the temperature control unit. The lighting device (50) is designed to emit light into the interior of the receptacle (10).
    Type: Application
    Filed: October 21, 2016
    Publication date: November 22, 2018
    Inventors: Jan Schaefer, Hannes Schmid
  • Publication number: 20180148676
    Abstract: The invention relates to a container device (1), comprising: a container receiving portion (4) for receiving a container; at least one valve (6) for controlling a flow of fluid in a fluid line connected to said container; a pump device (8) for generating a conveyor pressure of the fluid in the fluid line; a control device (10) which can be connected to the valve (6) and/or the pump device (8) in order to control the valve (6) and/or pump device (8); and a frame (2) which supports said container receiving portion (4), valve (6), pump device (8) and control device (10).
    Type: Application
    Filed: May 12, 2016
    Publication date: May 31, 2018
    Inventors: Jan Schaefer, Christian Manzke, Etienne Evrard
  • Patent number: 9903529
    Abstract: A filter holder for receiving filter cassettes (19) and a method for sterilizing the filter are provided. The filter holder has first and second parallel plates (3, 4). The first plate (3) is fixed and the second plate (4) is movable along at least one rail (2) by a drive (7, 9) so that the filter cassettes (19) can be clamped between the plates (3, 4) with a predefined clamping pressure. The drive (7, 9) is designed to be removable. The at least one rail (2) has at least one tension rod (5) with a spring clamping element (6) so that the first and second plates (3, 4) can be clamped with a pre-definable pressure against the filter cassettes (19).
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: February 27, 2018
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Mohammed Saeed Ajam, Jonas Mattern, Jan Schaefer