Patents by Inventor Stefan Keller

Stefan Keller 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: 20180110324
    Abstract: A height-adjustable frame comprises a first leg element with a first support section, a first foot section and a first adjustment arrangement and a second leg element with a second support section, a second foot section and a second adjustment arrangement. The first support section and the first foot section can be moved relative to each other by means of the first adjustment arrangement. The second support section and the second foot section can be moved relative to each other by means of the second adjustment arrangement. The first leg element can be pivoted about a first pivot axis and the second leg element can be pivoted about a second pivot axis. The frame also has a locking structure and a rotatable shaft arranged between the first leg element and the second leg element to synchronously drive the first adjustment arrangement and the second adjustment arrangement.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 26, 2018
    Inventors: Stefan KELLER, Helmut SCHÜTT
  • Publication number: 20180110327
    Abstract: A cable routing arrangement for routing cables in an orderly fashion on a height-adjustable furniture item comprises a rigid first routing element, a rigid second routing element, and a deformable connecting element. The first routing element has a first bearing arrangement, by means of which it can be pivotally connected to a top part of the furniture item. The second routing element has a second bearing arrangement, by means of which it can be pivotally connected to a base part of the furniture item. The first routing element and the second routing element can be interconnected via the connecting element in such a way that they are movable.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 26, 2018
    Inventors: Stefan KELLER, Helmut SCHÜTT
  • Publication number: 20180093314
    Abstract: The invention relates to a method for forming an aluminium composite material which has a core alloy made from an aluminium alloy of type AA5xxx or AA6xxx and at least one outer aluminium alloy layer provided on one or both sides, wherein the aluminium composite material is formed and the outer aluminium alloy layer provided on one or both sides has a yield strength Rp0.2 of 25 MPa to 60 MPa in the soft or solution-annealed state. The method enables the production of large-surface, heavily formed aluminium alloy sheet metal parts, in particular also in outer skin quality.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Applicant: Hydro Aluminium Rolled Products GmbH
    Inventors: Henk-Jan Brinkman, Stefan Keller, Olaf Engler, Natalie Hörster, Dietmar Schröder, Holger Aretz
  • Publication number: 20180084741
    Abstract: A user terminal may be configured to communicate with a gateway. The gateway may be configured to communicate with sensor equipment including one or more sensors and watering equipment via a first network. The gateway may also be configured to communicate with the user terminal via a second network. The user terminal may include processing circuitry that is configured to provide a remote interface for communication with the sensor equipment and the watering equipment via the gateway.
    Type: Application
    Filed: April 10, 2015
    Publication date: March 29, 2018
    Inventors: Sonja Gilliam, Stefan Keller, Thomas Schabel, Christian Kienzle, Sandra Weiser
  • Publication number: 20180077882
    Abstract: A system may include sensor equipment including one or more sensors disposed on a parcel of land, watering equipment disposed on the parcel and configured to selectively apply water to the parcel, and a gateway configured to provide for communication with the sensor equipment and the watering equipment. The gateway may interface between a first network and a second network. The first network may include at least the watering equipment and the sensor equipment. An operator may be enabled to wirelessly communicate with the gateway via the second network. At least one component of the watering equipment or the sensor equipment may be an adaptive component.
    Type: Application
    Filed: April 10, 2015
    Publication date: March 22, 2018
    Inventors: Sonja Gilliam, Stefan Keller, Thomas Schabel, Christian Kienzle, Sandra Weiser
  • Publication number: 20180064243
    Abstract: A furniture composition comprises a first workstation having a first worktop adjustable in a vertical direction, a second workstation having a second worktop adjustable, independently of the first worktop, in the vertical direction, and a height-adjustable partition which extends in the vertical direction between the first and second workstation. A first support element is provided on the first worktop, by means of which the partition can be supported in the vertical direction, and a second support element on a second worktop, by means of which the partition can be supported in the vertical direction.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 8, 2018
    Inventors: Stefan KELLER, Helmut SCHÜTT
  • Patent number: 9855592
    Abstract: The invention relates to a method for forming an aluminum composite material which has a core alloy made from an aluminum alloy of type AA5xxx or AA6xxx and at least one outer aluminum alloy layer provided on one or both sides, wherein the aluminum composite material is formed and the outer aluminum alloy layer provided on one or both sides has a yield strength Rp0.2 of 25 MPa to 60 MPa in the soft or solution-annealed state. The method enables the production of large-surface, heavily formed aluminum alloy sheet metal parts, in particular also in outer skin quality.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: January 2, 2018
    Assignee: Hydro Aluminium Rolled Products GmbH
    Inventors: Henk-Jan Brinkman, Stefan Keller, Olaf Engler, Natalie Hörster, Dietmar Schröder, Holger Aretz
  • Patent number: 9851030
    Abstract: A connecting apparatus for creating a connection to a measuring instrument or to a valve block/valve with a measuring instrument, and a connection to a pipeline or to a metering orifice device installed in a pipeline comprises: a first connecting device that provides a sealing connection to the pipeline or to the metering orifice device with a first recess extending through in the longitudinal direction, and a second connecting device that provides a sealing connection to the measuring instrument or to the valve block/valve with a second recess extending through in the longitudinal direction. The first and second connecting devices are interconnected with sealing effect. The connecting unit is designed so that the sealing connection can be created solely by rotation of the connecting unit without rotating the first and second connecting devices.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: December 26, 2017
    Assignee: ARMATURENFABRIK FRANZ SCHNEIDER GMBH + CO. KG
    Inventors: Stefan Keller, Markus Häffner
  • Publication number: 20170360189
    Abstract: In a table having a height-adjustable table top and supporting structures, the table top is secured on the supporting structures so that the supporting structures support the table top. The supporting structures are placeable on a floor. The table includes at least one band which connects the supporting structures and the table top to each other, so that the table top is supported by the supporting structures in that it hangs at the supporting structures with the aid of the band. The table according to the invention permits a simple, convenient, quick and precise adjustment of the height of the table top according to the needs of the respective user of the table.
    Type: Application
    Filed: October 1, 2015
    Publication date: December 21, 2017
    Inventor: Stefan KELLER
  • Patent number: 9714596
    Abstract: A method of manufacturing an exhaust gas carrying device, in particular an exhaust gas purification device, and a tool provided therefor include segment-like jaws that are used to deforma an outer housing. The jaws have indentations or projections adjacent to each other, and which are complementary to form a continuously surrounding indentation/projection. The reshaped outer housing is provided with one or more surrounding projections or indentations by the deformation.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 25, 2017
    Assignee: Faurecia Emissions Control Technologies, Germany GmbH
    Inventors: Stefan Keller, Stefan Meischkoetter, Otto Steinhauser, Manfred Stiglmaier
  • Publication number: 20170191916
    Abstract: Embodiments relate to a device for performing a bending test having a base plate, counter bearings connected via the base plate, bearing blocks which in each case comprise a support for applying a bending sample, and a bending punch or a bending rail for exerting a force on a bending sample. The distance of the supports can be set precisely and in a force resistant manner by abutting the counter bearings and the bearing blocks against each other via contact surfaces inclined to the base plate. Further provided is a method for performing a bending test using a device according to the invention, in the case of which a bending sample is applied on the supports and in the case of which a force is exerted between the supports on the bending sample.
    Type: Application
    Filed: March 23, 2017
    Publication date: July 6, 2017
    Applicant: Hydro Aluminium Rolled Products GmbH
    Inventors: Johannes Aegerter, Stefan Keller
  • Publication number: 20170150811
    Abstract: A table with a height-adjustable table top, supporting structures and at least one strap that connects the supporting structures and the table top together, so that the table top is supported by being suspended by the strap on the supporting structures. The table includes a mechanism for manually adjusting the height of the table top that includes a winding disk rotatably mounted relative to the table top, and a spring element non-positively connected to the winding disk, wherein the strap is connected to the winding disk. The table top is adjustable between a lower height in which the strap is minimally wound onto the winding disk and an upper height in which the strap is maximally wound onto the winding disk. The spring element is maximally tensioned when the table top is at the lower height and is minimally tensioned when the table top is at the upper height.
    Type: Application
    Filed: November 21, 2016
    Publication date: June 1, 2017
    Inventor: Stefan KELLER
  • Publication number: 20170146614
    Abstract: A method for dynamic noise reduction of magnetic field sensor signals of a magnetic field sensor circuit with a magnetic field sensor and a switching device, wherein the magnetic field sensor provides a sensor signal to a sensor output, and wherein the switching device comprises a signal comparator, a low pass filter and a multiplexer, and wherein the switching device comprises a signal input interconnected with the sensor signal output and a signal output, and wherein the signal comparator has a first input interconnected with the signal input and a second input interconnected with the low pass filter, and a control signal output interconnected with the multiplexer. In a first method step, the sensor signal is compared to the level of a signal of the low pass filter by means of the signal comparator, and the result is compared to a predetermined threshold value.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 25, 2017
    Applicant: Micronas GmbH
    Inventors: Rolf HAKENES, Stefan KELLER
  • Patent number: 9611800
    Abstract: In a fuel system for an internal combustion engine, the fuel is pumped by a high-pressure fuel pump into a fuel pressure accumulator, from which it is supplied into at least one combustion chamber via at least one injector. A value is provided for the actual pressure in the fuel pressure accumulator. A pressure regulating device using which the fuel may be extracted from the fuel pressure accumulator is precontrolled using a precontrol signal, which is ascertained taking into account a setpoint pressure in the fuel pressure accumulator. A value for a fuel quantity flowing through the pressure regulating device is taken into account when ascertaining the precontrol signal.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: April 4, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Guenter Veit, Stefan Keller
  • Publication number: 20170025717
    Abstract: A battery pack may include a plurality of cells arranged substantially adjacent to each other such that longitudinal centerlines of each of the cells are aligned substantially in parallel with each other in a first direction, a physical cell connection assembly that includes a cell-retaining portion disposed to contact each of the cells to hold the cells in a housing, an electrical cell connection assembly that includes a plurality of cell connectors disposed to contact at least selected ones of the cells in groups to facilitate electrical connection of the cells associated with each of the groups, a contact portion of each of the cell connectors being disposed to electrically connect electrodes of at least two of the cells, and a printed circuit board (PCB) configured to monitor electrical parameters associated with the cells based on electrical communication between the PCB and the electrical cell connection assembly.
    Type: Application
    Filed: December 17, 2013
    Publication date: January 26, 2017
    Inventors: Tobias Zeller, Joachim Rief, Erik Felser, Stefan Keller
  • Publication number: 20160336151
    Abstract: An AC power connector for connecting an AC power supply with a device is provided. The AC power connector includes at least one first element connectable with the AC power supply and at least one second element connectable with the device, the first element and the second elements being arranged at a first distance with respect to each other for defining a capacitance, wherein the at least one first element and the at least one second element are rotatable with respect to each other, wherein the first element and the second element are configured for a transfer of an AC power between the at least one first element and the at least one second element.
    Type: Application
    Filed: December 18, 2013
    Publication date: November 17, 2016
    Inventors: Frank SCHNAPPENBERGER, Anke HELLMICH, Stefan KELLER, Marcus BENDER
  • Publication number: 20160276142
    Abstract: According to the present disclosure, a semiconductor substrate handling systems and substrate carrier is provided. The substrate carrier for holding a substrate to be processed and for transporting the substrate in or through a processing area with a transport device includes a main portion for holding the substrate; a first end portion adapted to be supported by the transport device; and at least one first intermediate portion connecting the main portion with the first end portion. The at least one first intermediate portion includes one or more cut-outs adapted to reduce thermal energy transfer between the main portion and the first end portion.
    Type: Application
    Filed: November 25, 2013
    Publication date: September 22, 2016
    Inventors: Andreas Ewald LOPP, Stefan KELLER, Uwe SCHÜßLER, Stefan BANGERT, Thomas GEBELE, Norbert SPATZ
  • Publication number: 20160268109
    Abstract: A sputter deposition source for sputter deposition in a vacuum chamber is described. The source includes a wall portion of the vacuum chamber; a target providing a material to be deposited during the sputter deposition; an RF power supply for providing RF power to the target; a power connector for connecting the target with the RF power supply; and a conductor rod extending through the wall portion from inside of the vacuum chamber to outside of the vacuum chamber, wherein the conductor rod is connected to one or more components inside of the vacuum chamber and wherein the conductor rod is connected to the RF power supply outside of the vacuum chamber to generate a defined RF return path through the conductor rod.
    Type: Application
    Filed: November 5, 2013
    Publication date: September 15, 2016
    Inventors: Stefan KELLER, Uwe SCHÜßLER, Dieter HAAS, Stefan BANGERT
  • Publication number: 20160238174
    Abstract: A flexible pipe element is provided formed as a metal bellows with at least one corrugated bellows section and a bellows brim, which forms one end of the metal bellows, and a connection element for connecting the metal bellows to a continuing pipe part or to a connector, with the connection element having a connection area for abutting a contact area of the bellows brim. An annular bulge is formed in the contact area of the bellows brim and/or in the connection area of the connection element projecting beyond an average level of the contact area and/or an average level of the connection area in order to form a linear seal between the contact area and the connection area. A method for producing such a flexible line part is also provided.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Applicant: Witzenmann GmbH
    Inventors: Matthias Farr, Jochen Glas, Thomas Herr, Stefan Keller
  • Patent number: 9407582
    Abstract: A redundantly operated industrial communication system includes communication devices that are redundantly linked to an industrial communication network and includes network infrastructure devices associated with the industrial communication network, wherein message transmission occurs wirelessly at least in sections. The industrial communication network contains a plurality of buffer memory units for message elements that are received at a network node by wire and message elements that are to be sent by the network node wirelessly. When a maximum buffer size is exceeded, an oldest message element situated in a respective buffer memory unit is erased. Until the maximum buffer size is exceeded, the oldest message element is selected as the next message element to be sent wirelessly.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: August 2, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hermann Angst, Stefan Keller, Siegfried Kühnel, Henryk Lumpp, Martin Schneider