Patents by Inventor Ekkehard Kress
Ekkehard Kress 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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Publication number: 20230360866Abstract: Apparatus for switching an electrical load circuit operated at high voltage are disclosed. The embodiments described herein include a device for controlling the switching of a high voltage circuit such that both the connection and disconnection can be carried out in a simple and reliable manner. Embodiments described herein can also prevent the unintentional opening of the switching device which can greatly extend the service life of the switching circuitry. Moreover, the apparatus disclosed herein reliably prevent the formation of an arc during switching by enabling the switching operation to take place without a load.Type: ApplicationFiled: April 27, 2022Publication date: November 9, 2023Inventor: Ekkehard Kress
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Publication number: 20230326688Abstract: An electrical system is provided. In a non-limiting embodiment, an electrical system may include a load circuit comprising a plurality of series-connected storage/converter cells for supplying the load circuit, and an event sensor. Isolator switches may be provided between series-connected storage/converter cells, said isolator switches being in a closed position during normal operation of the electrical system, and being arranged such that they change to an open position when the event sensor is triggered.Type: ApplicationFiled: November 26, 2018Publication date: October 12, 2023Inventor: EKKEHARD KRESS
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Patent number: 11342135Abstract: The invention relates to a device for connecting and disconnecting an electrical load circuit, operated at high voltage by a voltage source, in a transportation means that is electrically driven by a drive operated at low voltage. According to the invention, a contact stud (6) is connected to the push rod (11) of a linear drive (2) and the contact stud (6) can be moved into at least two positions in a switch housing (4), wherein the switch housing (4) has, on its internal wall, at least two contact rings (5), one of which is connected to the voltage source (7) and the other is connected to the consumer circuit (8).Type: GrantFiled: November 26, 2018Date of Patent: May 24, 2022Assignee: IIE GMBH & CO. KGInventor: Ekkehard Kress
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Publication number: 20200373099Abstract: The invention relates to a device for connecting and disconnecting an electrical load circuit, operated at high voltage by a voltage source, in a transportation means that is electrically driven by a drive operated at low voltage. According to the invention, a contact stud (6) is connected to the push rod (11) of a linear drive (2) and the contact stud (6) can be moved into at least two positions in a switch housing (4), wherein the switch housing (4) has, on its internal wall, at least two contact rings (5), one of which is connected to the voltage source (7) and the other is connected to the consumer circuit (8).Type: ApplicationFiled: November 26, 2018Publication date: November 26, 2020Inventor: EKKEHARD KRESS
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Patent number: 10224801Abstract: An asymmetrical bipolar voltage supply comprising a transformer (1), having at least one primary winding (7) and a plurality of secondary windings (8) and a primary-side power supply (2; 25; 28) connected to at least one DC voltage source. The circuit is configured and connected so as to generate in the transformer two oppositely polarized winding voltages UW1 and UW2 with different amplitudes.Type: GrantFiled: August 2, 2016Date of Patent: March 5, 2019Assignee: IIE GmbH & Co. KGInventor: Ekkehard Kress
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Publication number: 20180212506Abstract: An asymmetrical bipolar voltage supply comprising a transformer (1), having at least one primary winding (7) and a plurality of secondary windings (8) and a primary-side power supply (2; 25; 28) connected to at least one DC voltage source. The circuit is configured and connected so as to generate in the transformer two oppositely polarized winding voltages UW1 and UW2 with different amplitudes.Type: ApplicationFiled: August 2, 2016Publication date: July 26, 2018Inventor: EKKEHARD KRESS
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Publication number: 20180138804Abstract: A voltage source for modulated DC voltages, operative to amplify the power of a reference signal to keep an output voltage constant, has a static DC voltage source with at least one parallel capacitor. The voltage source includes a first switching element, which is connected in parallel to the static DC voltage source and can be switched on or off by an unregulated controller; a second electronic switching element, which is connected in series to the first electronic switching element and in parallel to the DC voltage source and can be switched on or off by the controller; a coil, which is connected in series with the first electronic switching element and in parallel to the second electronic switching element; a smoothing capacitor, which is connected in series with the coil; and a load, which is connected in parallel to the smoothing capacitor.Type: ApplicationFiled: June 15, 2016Publication date: May 17, 2018Inventor: EKKEHARD KRESS
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Patent number: 9615437Abstract: An apparatus and method for operating a light generator (2) with a voltage source (4) makes possible a simple and reliable determination of the light generator's condition. The apparatus provides (a) a device (5; 13) for generating a measurement voltage the voltage present at ale light generator (2), (b) device (6, 9) for generating a first and a second comparison voltage, each proportional to the current flowing through the light generator (2), (c) a device (9, 8) for forming a difference voltage from the measurement voltage and one comparison voltage and a summation voltage from the measurement voltage and the other comparison voltage, (d) two capacitive rectifiers (7) for rectifying the difference voltage and the summation voltage, and (e) a controller (3), by which the rectified difference voltage and the rectified summation voltage can be evaluated.Type: GrantFiled: April 17, 2015Date of Patent: April 4, 2017Assignee: IIE GmbH & CO. KGInventor: Ekkehard Kress
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Publication number: 20160374185Abstract: An apparatus and method for operating a light generator (2) with a voltage source (4) makes possible a simple and reliable determination of the light generator's condition. The apparatus provides (a) a device (5; 13) for generating a measurement voltage the voltage present at ale light generator (2), (b) device (6, 9) for generating a first and a second comparison voltage, each proportional to the current flowing through the light generator (2), (c) a device (9, 8) for forming a difference voltage from the measurement voltage and one comparison voltage and a summation voltage from the measurement voltage and the other comparison voltage, (d) two capacitive rectifiers (7) for rectifying the difference voltage and the summation voltage, and (e) a controller (3), by which the rectified difference voltage and the rectified summation voltage can be evaluated.Type: ApplicationFiled: April 17, 2015Publication date: December 22, 2016Inventor: EKKEHARD KRESS
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Patent number: 8532154Abstract: A laser diode arrangement having a multiplicity of laser diodes (11) arranged along side one another, comprises a heat sink (9) on which the laser diodes (11) are mounted and a cooling body (1) which is in intimate contact with the heat sink (9), wherein the cooling body (1) has two coolant channels (2; 3), which run parallel to the longitudinal axis of the heat sink (9) and are embodied as a feed channel (2) and as a discharge channel (3) for a coolant. According to the invention a multiplicity of cooling channels (5, 7; 6, 8) lying along side one another are provided, which branch off from the feed channel (2), lead past the heat sink (9), and open into the discharge channel (3), wherein cooling channels (5, 7; 6, 8) lying directly alongside one another branch off at different locations of the periphery of the feed channel (2) and of the discharge channel (3).Type: GrantFiled: August 31, 2009Date of Patent: September 10, 2013Assignee: IIE GmbH & Co KGInventor: Ekkehard Kress
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Publication number: 20130003764Abstract: A laser diode arrangement having a multiplicity of laser diodes (11) arranged along side one another, comprises a heat sink (9) on which the laser diodes (11) are mounted and a cooling body (1) which is in intimate contact with the heat sink (9), wherein the cooling body (1) has two coolant channels (2; 3), which run parallel to the longitudinal axis of the heat sink (9) and are embodied as a feed channel (2) and as a discharge channel (3) for a coolant. According to the invention a multiplicity of cooling channels (5, 7; 6, 8) lying along side one another are provided, which branch off from the feed channel (2), lead past the heat sink (9), and open into the discharge channel (3), wherein cooling channels (5, 7; 6, 8) lying directly alongside one another branch off at different locations of the periphery of the feed channel (2) and of the discharge channel (3).Type: ApplicationFiled: August 31, 2009Publication date: January 3, 2013Applicant: IIE GmbH & CO. KGInventor: Ekkehard Kress
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Patent number: 8017925Abstract: A device to polymerize plastics that are to be hardened by means of UV irradiation comprises two different irradiation sources for UV irradiation and IR irradiation, respectively, whose irradiation is projected onto the plastic to be hardened. The irradiation source for the UV irradiation includes a solid-state laser.Type: GrantFiled: May 30, 2008Date of Patent: September 13, 2011Assignee: IIE GmbH & Co. KGInventor: Ekkehard Kress
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Patent number: 7881351Abstract: A laser module (1) with at least two laser units (3) are adjusted such that the emitted beams of the laser units (3) converge. The laser units (3) exhibit cooling channels (5) that are provided with a cooling medium. At least one of the laser units has a curved adjustment surface (10) which his mounted to a facing mounting surface (9) of a mounting unit (2) such that a cooling channel opening in the adjustment surface (9) is located opposite an additional cooling channel opening in the mounting surface (10).Type: GrantFiled: May 30, 2008Date of Patent: February 1, 2011Assignee: IIE GmbH & Co. KGInventor: Ekkehard Kress
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Publication number: 20100163753Abstract: A device to polymerize plastics that are to be hardened by means of UV irradiation comprises two different irradiation sources for UV irradiation and IR irradiation, respectively, whose irradiation is projected onto the plastic to be hardened. The irradiation source for the UV irradiation includes a solid-state laser.Type: ApplicationFiled: May 30, 2008Publication date: July 1, 2010Inventor: Ekkehard Kress
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Publication number: 20100158058Abstract: A laser module (1) with at least two laser units (3) are adjusted such that the emitted beams of the laser units (3) converge. The laser units (3) exhibit cooling channels (5) that are provided with a cooling medium. At least one of the laser units has a curved adjustment surface (10) which his mounted to a facing mounting surface (9) of a mounting unit (2) such that a cooling channel opening in the adjustment surface (9) is located opposite an additional cooling channel opening in the mounting surface (10).Type: ApplicationFiled: May 30, 2008Publication date: June 24, 2010Inventor: Ekkehard Kress