Patents by Inventor Martin Kram

Martin Kram 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).

  • Publication number: 20240068818
    Abstract: A method for determining a direction of travel and/or a change in position and/or a speed of a driverless transport vehicle (1), which has an optical sensor (8) directed to a ground (10), on which the driverless transport vehicle (1) is traveling, wherein a) measurement data is acquired by means of the optical sensor (8), and b) the direction of travel of the driverless transport vehicle (1) and/or a change in position and/or a speed of the driverless transport vehicle (1) is/are determined by an evaluation unit (6) in the driverless transport vehicle (1) based on the acquired measurement data. A driverless transport vehicle and a method for operating a driverless transport vehicle are also provided along with a driverless transport system.
    Type: Application
    Filed: February 14, 2022
    Publication date: February 29, 2024
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Martin KRAM
  • Patent number: 11150128
    Abstract: A detector arrangement, for selective detection of vibrations on a component, comprises a film fitted with at least one piezoelectric element. The film is attached to the component in such a way that occurring mechanical vibrations act on the piezoelectric element, such that an electrical charge with a frequency correlating with the mechanical vibration is generated at the connection electrodes of the piezoelectric element. An electrical filter is connected to the piezoelectric element and filters out the component of the supplied charge which corresponds to a predefined frequency. An electrical charge storage means which is connected to the filter is used to accumulate the filtered-out charge components. A signaling means is also provided, which generates an electrical signal as soon as a predetermined charge limit value is reached on the charge storage means.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: October 19, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Joachim Hering, Hans-Willi Kessler, Martin Kram
  • Publication number: 20210071716
    Abstract: A bearing (1), in particular a rolling bearing or plain bearing, has a first bearing component, such as a bearing ring (2, 3) and/or a rolling element cage (5), and a function module (10) for detecting a measured variable and/or for activating state changes and/or for processing information and/or for providing energy, the functional module (10) being arranged completely enclosed within the first bearing component (2, 3, 5). The bearing may be produced by injection molding or 3D printing.
    Type: Application
    Filed: January 18, 2019
    Publication date: March 11, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Martin Kram
  • Publication number: 20200347886
    Abstract: A method for operating a bearing (10), in particular roller bearing or sliding bearing or linear bearing, with at least a first energy supply module (1, 2, 3, 4) and a second energy supply module (1, 2, 3, 4), wherein a first control unit of the first energy supply module (1, 2, 3, 4) and a second control unit of the second energy supply module (1, 2, 3, 4) are configured to control outputting of energy of the respective energy supply module (1, 2, 3, 4) according to a predefined supply strategy, wherein the first control unit and/or the second control unit receive/receives a supply request and controls the outputting of energy by the respective energy supply module (1, 2, 3, 4) as a function of the supply request and the predefined supply strategy.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 5, 2020
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Kram, Tomas Smetana, Michel Gnaba, Masato Izumi
  • Publication number: 20200217361
    Abstract: Sensor sets for bearings are disclosed, e.g., for mechanical bearings. The set may include a plurality of modules, which may include one or more functional modules configured to measure bearing state variables. The functional modules may each have an electrical interface that is compatible with one another. At least one of the functional modules may be an acceleration measurement module configured to measure an acceleration which occurs on an oscillating component of the bearing. The acceleration measurement module may be configured to output an acceleration measurement signal. One or more infrastructure modules may be included for realizing communication tasks and/or for storing and/or processing pre-specified and/or recorded data. The infrastructure modules may each have an electrical interface such that they are interoperable with at least one of the functional modules. At least one of the infrastructure modules may be a signal evaluation unit configured to evaluate the acceleration measurement signal.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 9, 2020
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Martin Kram
  • Publication number: 20190353515
    Abstract: A detector arrangement, for selective detection of vibrations on a component, comprises a film fitted with at least one piezoelectric element. The film is attached to the component in such a way that occurring mechanical vibrations act on the piezoelectric element, such that an electrical charge with a frequency correlating with the mechanical vibration is generated at the connection electrodes of the piezoelectric element. An electrical filter is connected to the piezoelectric element and filters out the component of the supplied charge which corresponds to a predefined frequency. An electrical charge storage means which is connected to the filter is used to accumulate the filtered-out charge components. A signaling means is also provided, which generates an electrical signal as soon as a predetermined charge limit value is reached on the charge storage means.
    Type: Application
    Filed: December 18, 2017
    Publication date: November 21, 2019
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Joachim Hering, Hans-Willi Kessler, Martin Kram
  • Patent number: 10101241
    Abstract: A kit including a plurality of modules which can be integrated in a bearing installation space is disclosed. The modules include a plurality of supply management modules for supplying bearing components, a plurality of functional modules for measuring bearing state variables and/or for triggering and/or activating specified events under specified conditions, and a plurality of infrastructure modules for implementing communication tasks and/or for saving and processing specified and/or recorded data. A bearing arrangement having a bearing and a plurality of modules which can be connected to a common connection medium is also disclosed, wherein the modules are components of the kit.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 16, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Martin Kram, Jens Heim
  • Publication number: 20180258987
    Abstract: Sensor sets for bearings are disclosed, e.g., for mechanical bearings. The set may include a plurality of modules, which may include one or more functional modules configured to measure bearing state variables. The functional modules may each have an electrical interface that is compatible with one another. At least one of the functional modules may be an acceleration measurement module configured to measure an acceleration which occurs on an oscillating component of the bearing. The acceleration measurement module may be configured to output an acceleration measurement signal. One or more infrastructure modules may be included for realizing communication tasks and/or for storing and/or processing pre-specified and/or recorded data. The infrastructure modules may each have an electrical interface such that they are interoperable with at least one of the functional modules. At least one of the infrastructure modules may be a signal evaluation unit configured to evaluate the acceleration measurement signal.
    Type: Application
    Filed: September 15, 2016
    Publication date: September 13, 2018
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Martin Kram
  • Patent number: 9989460
    Abstract: Rolling bearings include a plurality of rolling bodies which during operation roll on raceways. In order to reduce friction during rolling, it is customary to supply the rolling bearings with a lubricant. However, the quality of the lubricant can deteriorate during operation due to long-term stress, aging, or thermal influences, or get lost in gaps etc. The objective addressed by the invention is that of providing a sensor device, which can be operated in a functionally reliable manner. This objective is achieved by a sensor device for monitoring the state of a lubricant in a lubricant chamber, including a transmitter platform, wherein on the transmitter platform, a plurality of diode devices are arranged, having a measurement window device, wherein the measurement window device is arranged between a measuring chamber and the lubricant chamber, having a receiving device, wherein at least one of the diode devices comprises a die and a plastic dome.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 5, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Ingolf Schlosser, Martin Kram
  • Publication number: 20170370802
    Abstract: The invention relates to a kit including a plurality of modules which can be integrated in a bearing installation space. The modules include a plurality of supply management modules for supplying bearing components, a plurality of functional modules for measuring bearing state variables and/or for triggering and/or activating specified events under specified conditions, and a plurality of infrastructure modules for implementing communication tasks and/or for saving and processing specified and/or recorded data. The invention further relates to a bearing arrangement having a bearing and a plurality of modules which can be connected to a common connection medium, wherein the modules are components of the kit according to the invention.
    Type: Application
    Filed: February 3, 2016
    Publication date: December 28, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Kram, Jens Heim
  • Patent number: 9709547
    Abstract: A sensor unit is disclosed for determining properties of a lubricant; for example, a lubricating grease in a rolling bearing. A machine element may include the sensor unit and a machine assembly may include the machine element. The sensor unit includes a sensor housing having a window which can be aligned to the lubricant. A transmitter for emitting electromagnetic radiation through the window and a receiver for receiving electromagnetic radiation which passes through the window are located in the sensor housing. Evaluating electronics arranged in the sensor housing are electrically connected at least to the receiver. The evaluating unit is designed to generate at least one digital sensor signal. The sensor unit further includes an electrical connection, which is led through the sensor housing and electrically connected to the evaluating electronics in the sensor housing.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 18, 2017
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Martin Kram, Thomas Drescher, Stephan Neuschaefer-Rube, Andreas Bill
  • Patent number: 9670955
    Abstract: An anti-friction bearing including a mechanical bearing (2) for transmitting mechanical loads and a potential equalization bearing (3), each rolling element (7) of which has two identical side surfaces. The potential equalization bearing is particularly a ball roller bearing or a cylindrical roller bearing. The potential equalization bearing (3) preferably includes resilient rolling elements (7) in the form of hollow rollers.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 6, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Thomas Drescher, Horst Brehm, Martin Kram
  • Publication number: 20160258923
    Abstract: The invention relates to a sensor unit for determining properties of a lubricant; for example, a lubricating grease in a rolling bearing. The invention further relates to a machine element having the sensor unit according to the invention and to a machine assembly having the machine element according to the invention. The sensor unit according to the invention first of all includes a sensor housing having a window which can be aligned to the lubricant. A transmitter for emitting electromagnetic radiation through the window and a receiver for receiving electromagnetic radiation which passes through the window are located in the sensor housing. Evaluating electronics arranged in the sensor housing are electrically connected at least to the receiver. The evaluating unit is designed to generate at least one digital sensor signal. The sensor unit further includes an electrical connection, which is led through the sensor housing and electrically connected to the evaluating electronics in the sensor housing.
    Type: Application
    Filed: September 15, 2014
    Publication date: September 8, 2016
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Martin Kram, Thomas Drescher, Stephan Neuschaefer-Rube, Andreas Bill
  • Publication number: 20160223459
    Abstract: Rolling bearings include a plurality of rolling bodies which during operation roll on raceways. In order to reduce friction during rolling, it is customary to supply the rolling bearings with a lubricant. However, the quality of the lubricant can deteriorate during operation due to long-term stress, aging, or thermal influences, or get lost in gaps etc. The objective addressed by the invention is that of providing a sensor device, which can be operated in a functionally reliable manner. This objective is achieved by a sensor device for monitoring the state of a lubricant in a lubricant chamber, including a transmitter platform, wherein on the transmitter platform, a plurality of diode devices are arranged, having a measurement window device, wherein the measurement window device is arranged between a measuring chamber and the lubricant chamber, having a receiving device, wherein at least one of the diode devices comprises a die and a plastic dome.
    Type: Application
    Filed: July 25, 2014
    Publication date: August 4, 2016
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Ingolf Schlosser, Martin Kram
  • Publication number: 20160208852
    Abstract: An anti-friction bearing including a mechanical bearing (2) for transmitting mechanical loads and a potential equalization bearing (3), each rolling element (7) of which has two identical side surfaces. The potential equalization bearing is particularly a ball roller bearing or a cylindrical roller bearing. The potential equalization bearing (3) preferably includes resilient rolling elements (7) in the form of hollow rollers.
    Type: Application
    Filed: July 25, 2014
    Publication date: July 21, 2016
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Thomas Drescher, Horst Brehm, Martin Kram
  • Patent number: 8878408
    Abstract: A bearing, which has a first bearing ring, a second bearing ring and a claw pole generator-type power generation unit. The bearing has a substantially space-neutral power generation unit, which has a high filling factor for the induction coil. Every claw ring is connected to a section of the body of the first bearing ring in a magnetically conducting fashion and the magnetic circuit is substantially closed via the section of the body of the first bearing ring.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: November 4, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Thomas Rink, Stefan Kleiber, Martin Kram
  • Patent number: 8785860
    Abstract: A sensor part for an infrared sensor, including an IR-sensitive detector (1), at least one reference source (2) emitting IR radiation, and an IR-sensitive reference detector (3) which, in the direction of the incident IR radiation, is at a distance from the detector (1), wherein the at least one reference source (2) is arranged at the side of the reference detector (3), and including a support (5), on the first side (6) of which the detector (1), the at least one reference source (2) and the reference detector (3) are arranged. The support (5) includes a blank made of a flexible material bent in some sections, in particular a blank made of a flexible printed circuit board bent in some sections. The invention achieves the aim of specifying a three-dimensional sensor part for an IR sensor that can be produced by a simple method. The invention further relates to a method for producing a sensor part and to an IR sensor.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: July 22, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Martin Kram, Gehard Rohner
  • Patent number: 8624191
    Abstract: A measuring device for analyzing a lubricant of a bearing. The measuring device has an electromagnetic radiation emitter, a receiving element and a test area that is arranged between the emitter and the receiving element. The measuring device allows for current information on the condition of the lubricant in the bearing to be obtained. At least some sections of the test area are inside the bearing and the receiving element supplies a spectrum of electromagnetic radiation captured by the test area. Also, a bearing and a seal for the bearing and a method for detecting and monitoring the condition of the lubricant of a bearing.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: January 7, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Joerg Franke, Joachim Hering, Martin Kram, Joachim Schleifenbaum, Alexander Weiss, Gerhard Roehner, Sven Floesser, Marcel Schreiner, Thomas Otto, Thomas Gessner
  • Publication number: 20130075616
    Abstract: A sensor part for an infrared sensor, including an IR-sensitive detector (1), at least one reference source (2) emitting IR radiation, and an IR-sensitive reference detector (3) which, in the direction of the incident IR radiation, is at a distance from the detector (1), wherein the at least one reference source (2) is arranged at the side of the reference detector (3), and including a support (5), on the first side (6) of which the detector (1), the at least one reference source (2) and the reference detector (3) are arranged. The support (5) includes a blank made of a flexible material bent in some sections, in particular a blank made of a flexible printed circuit board bent in some sections. The invention achieves the aim of specifying a three-dimensional sensor part for an IR sensor that can be produced by a simple method. The invention further relates to a method for producing a sensor part and to an IR sensor.
    Type: Application
    Filed: April 6, 2011
    Publication date: March 28, 2013
    Applicants: CARL FREUDENBERG KG, SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Martin Kram, Gerhard Röhner
  • Patent number: 8395475
    Abstract: The invention relates to a bearing device having a position indicator, comprising a bearing receptacle (2) and a bearing (3) disposed in the bearing receptacle (2) having a first bearing part (4) displaceable relative to the bearing receptacle (2), wherein the position indicator (6) comprises a potentiometer having a resistor circuit (8) and a position finger (7). The aim of providing a bearing device having a position indicator allowing reliable capture of the relative position of the bearing in the bearing device and capture of the position of the bearing parts of the bearing to each other in a simple manner is achieved according to the invention in that the resistor circuit (8) is associated with the bearing receptacle (2) and first bearing part, and that the position finger (7) is associated with the bearing receptacle and first bearing part (4).
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: March 12, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Martin Kram