Patents by Inventor Ulrich Lehmann

Ulrich Lehmann 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: 20220211176
    Abstract: A furniture element, in particular a shelf or shelving unit has at least one storage level, a body, and a bottom plate. Storage surfaces of the body, which face each other, and the bottom plate each have raceways, in which rolling elements are guided. The body is movable relative to the bottom plate from an initial position to an intermediate position and back, wherein, in the intermediate position, the body is rotated relative to the bottom plate in a rotation direction and shifted in a predetermined direction, the raceways of the bottom plate being formed having mirror symmetry to an axis of symmetry extending at an oblique angle relative to a lateral edge of the bottom plate.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 7, 2022
    Inventors: Daniel REHAGE, Andreas MATTHES, Ulrich SIEGERT, Bernd LEHMANN, Mathias WINKLER
  • Patent number: 11038468
    Abstract: A circuit arrangement for generating a supply voltage with a controllable ground potential level includes a voltage source that provides the supply voltage ungrounded, a control unit that generates an adjustable control d.c. voltage to ground, and an operational amplifier that is connected via its voltage supply terminals to the supply voltage source, where the control d.c. voltage is applied to the inverting input of the operational amplifier, the non-inverting input of the operational amplifier is connected via a resistor network to the voltage source and to a ground terminal and the output of the operational amplifier is fed back to the inverting input via a capacitor.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: June 15, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Kreb, Ulrich Lehmann, Wilhelm Griesbaum
  • Publication number: 20200266848
    Abstract: A module for a programmable controller includes a plurality of analog input channels, a control and evaluation device, and input terminals, where for each input channel, the module includes two analog to digital converters, at least four coupling elements and a switchover device, where for each input channel, where an input side of one analog to digital converter is directly or indirectly connected with the input terminals and an output side is connected with the evaluation circuit via a coupling element, where a control input of the switchover device is connected with the switching signal generator via a further coupling element, a signal output of the switchover device is connected with an input side of the other analog-to-digital converter, and where an output side of the other analog-to-digital converter is connected with the evaluation circuit via a further coupling element, where the coupling elements cause electrical isolation.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Inventors: Wilhelm Griesbaum, Ulrich Lehmann
  • Patent number: 10749563
    Abstract: A module for a programmable controller includes a plurality of analog input channels, a control and evaluation device, and input terminals, where for each input channel, the module includes two analog to digital converters, at least four coupling elements and a switchover device, where for each input channel, where an input side of one analog to digital converter is directly or indirectly connected with the input terminals and an output side is connected with the evaluation circuit via a coupling element, where a control input of the switchover device is connected with the switching signal generator via a further coupling element, a signal output of the switchover device is connected with an input side of the other analog-to-digital converter, and where an output side of the other analog-to-digital converter is connected with the evaluation circuit via a further coupling element, where the coupling elements cause electrical isolation.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: August 18, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Griesbaum, Ulrich Lehmann
  • Publication number: 20190356273
    Abstract: A circuit arrangement for generating a supply voltage with a controllable ground potential level includes a voltage source that provides the supply voltage ungrounded, a control unit that generates an adjustable control d.c. voltage to ground, and an operational amplifier that is connected via its voltage supply terminals to the supply voltage source, where the control d.c. voltage is applied to the inverting input of the operational amplifier, the non-inverting input of the operational amplifier is connected via a resistor network to the voltage source and to a ground terminal and the output of the operational amplifier is fed back to the inverting input via a capacitor.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 21, 2019
    Inventors: Walter Kreb, Ulrich LEHMANN, Wilhelm GRIESBAUM
  • Patent number: 10071657
    Abstract: A vehicle seat double fitting (10) includes two fittings (100) operatively connected to each other and each with a first fitting part (111) and a second fitting part (112) that are rotatable relative to one another around an axis (A) and are in geared connection or locked to one another. An adapter part (150) is connected to one of the first fitting parts (111) or the second fitting parts (112) and a second adapter part (160) is connected to other of the first fitting parts (111) or the second fitting parts (111, 112). Exactly one adapter part (150, 160) is fixedly connected to a structural part (3) of the vehicle seat and the other of the two adapter parts (150, 160) is limitedly moveable or rotatable around the axis (A), relative to the structural part (3) and the adapter part (150, 160) fixedly connectable to the structural part (3).
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: September 11, 2018
    Assignee: Johnson Controls Components GmbH & Co. KG
    Inventors: Kirubaharan Albert Reginold, Ulrich Lehmann, Reinhard Kraus, Bernd Bossmanns, Rolf Schueler
  • Patent number: 9987956
    Abstract: A locking unit (10) for a vehicle seat (1) includes a housing with at least on side plate (16) and/or a cover plate (18), and at least one bearing bolt (51, 52) having a bearing axis (56). The at least one bearing bolt (51, 52), in an axial direction, is penetrated by a through opening (55) having a through axis (53). The through axis (53) of the through opening (55) extends offset to the bearing axis (56) of the bearing bolt (51, 52).
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 5, 2018
    Assignee: Johnson Controls GmbH
    Inventors: Andreas Vedder, Ulrich Lehmann, Peter Mueller
  • Publication number: 20170015220
    Abstract: A vehicle seat double fitting (10) includes two fittings (100) operatively connected to each other and each with a first fitting part (111) and a second fitting part (112) that are rotatable relative to one another around an axis (A) and are in geared connection or locked to one another. An adapter part (150) is connected to one of the first fitting parts (111) or the second fitting parts (112) and a second adapter part (160) is connected to other of the first fitting parts (111) or the second fitting parts (111, 112). Exactly one adapter part (150, 160) is fixedly connected to a structural part (3) of the vehicle seat and the other of the two adapter parts (150, 160) is limitedly moveable or rotatable around the axis (A), relative to the structural part (3) and the adapter part (150, 160) fixedly connectable to the structural part (3).
    Type: Application
    Filed: March 3, 2015
    Publication date: January 19, 2017
    Inventors: Kirubaharan ALBERT REGINOLD, Ulrich LEHMANN, Reinhard KRAUS, Bernd BOSSMANNS, Rolf SCHUELER
  • Patent number: 9481270
    Abstract: A vehicle seat fitting has a fitting parts (11, 12) have a sprocket (17) and guide segments (14), a bar (16) guided by the guide segments between a locked and unlocked state that interact with the sprocket. The bar has bar cams (16a, 16b). An eccentric (27) is rotatably mounted around a rotation axis (A) and in a transition from unlocked to the locked, engages the bar with a force for clamping the bar against the sprocket. The eccentric has eccentric cams (28, 128) interacting with the bar cams. The first eccentric cam has a cam section (28.2) which runs in the peripheral direction concentrically around the axis. The cam section is arranged upstream in the closing direction of a further cam section (28.4) that has a cam contour running radially outwards downstream in the closing direction relative to the concentrically peripheral contour for clamping the bar against the sprocket.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 1, 2016
    Assignee: Johnson Controls Components GmbH & Co. KG
    Inventors: Christoph Peters, Ulrich Lehmann
  • Publication number: 20160229318
    Abstract: A locking unit (10) for a vehicle seat (1) includes a housing with at least on side plate (16) and/or a cover plate (18), and at least one bearing bolt (51, 52) having a bearing axis (56). The at least one bearing bolt (51, 52), in an axial direction, is penetrated by a through opening (55) having a through axis (53). The through axis (53) of the through opening (55) extends offset to the bearing axis (56) of the bearing bolt (51, 52).
    Type: Application
    Filed: September 23, 2014
    Publication date: August 11, 2016
    Inventors: Andreas VEDDER, Ulrich LEHMANN, Peter MUELLER
  • Patent number: 9352667
    Abstract: In a fitting system for a vehicle seat having at least one fitting by which a rest can be pivoted relative to a seat part from at least one use position to a non-use position, the fitting has a first fitting part with a toothed rim, a second fitting part, having at least one moving bolt which locks the fitting in the use position by interacting with the toothed rim, a prestressed eccentric which moves the bolt radially outward to interact with the toothed rim, and a control cam which moves the bolt radially inward in the event of rotation in the opening direction, to terminate interaction with the toothed rim. The control cam can be rotated in the closing direction in a manner uncoupled from the eccentric, to lock the fitting in the non-use position by interaction between the one bolt and the toothed rim.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: May 31, 2016
    Assignee: KEIPER GMBH & CO. KG
    Inventors: Rolf Schueler, Ulrich Lehmann
  • Publication number: 20160046212
    Abstract: An adjusting device, in particular for the backrest inclination adjustment of a vehicle seat, has a first fitting part (5) and a second fitting part (6). The first fitting part can be rotated in relation to the second fitting part about an axis of rotation. The adjusting device has at least one coupling device (4) for coupling the first fitting part and the second fitting part. At least a part of a surface of the coupling device (4) and/or of the first fitting part and/or of the second fitting part has structuring.
    Type: Application
    Filed: March 25, 2014
    Publication date: February 18, 2016
    Inventors: Ulrich LEHMANN, Gunther HILLE
  • Publication number: 20150298585
    Abstract: A vehicle seat fitting has a fitting parts (11, 12) have a sprocket (17) and guide segments (14), a bar (16) guided by the guide segments between a locked and unlocked state that interact with the sprocket. The bar has bar cams (16a, 16b). An eccentric (27) is rotatably mounted around a rotation axis (A) and in a transition from unlocked to the locked, engages the bar with a force for clamping the bar against the sprocket. The eccentric has eccentric cams (28, 128)interacting with the bar cams. The first eccentric cam has a cam section (28.2) which runs in the peripheral direction concentrically around the axis. The cam section is arranged upstream in the closing direction of a further cam section (28.4) that has a cam contour running radially outwards downstream in the closing direction relative to the concentrically peripheral contour for clamping the bar against the sprocket.
    Type: Application
    Filed: September 27, 2013
    Publication date: October 22, 2015
    Inventors: Christoph PETERS, Ulrich LEHMANN
  • Patent number: 9108541
    Abstract: For a recliner system for a vehicle seat, in particular a motor vehicle seat, comprising at least one recliner, which has a first recliner part and a second recliner part, which can be locked to each other and can be rotated relative to each other about an axis, a transfer rod, the rotation of which unlocks the recliner, and a hand lever, the operation of which rotates the transfer rod in order to unlock the recliner, a stop module is provided, which is operatively connected to the hand lever and to the transfer rod and which stops the hand lever and one of the recliner parts relative to each other in at least one rotational direction.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: August 18, 2015
    Assignee: KEIPER GMBH & CO. KG
    Inventors: Uwe Assmann, Christoph Peters, Thomas Mayer, Ulrich Lehmann, Gunther Hille
  • Patent number: 9085249
    Abstract: A method for producing a vehicle seat fitting involves a sliding bearing bushing (28) being pressed in the axial direction into a receptacle in a first fitting part (11). The pressed-in sliding bearing bushing (28) has a radially protruding securing region (28b). The securing region (28b) is formed before or after the pressing-in operation.
    Type: Grant
    Filed: December 4, 2010
    Date of Patent: July 21, 2015
    Assignee: Keiper GMBH & Co. KG
    Inventors: Christian Jokiel, Ulrich Lehmann
  • Patent number: 9039088
    Abstract: With a fitting for a vehicle seat, in particular for a motor vehicle seat, having a first fitting part and a second fitting part, which are rotatable relative to one another and are in geared connection with each other, an enclosing ring, which axially holds together the first fitting part and the second fitting part, forming a disc-shaped unit, and which is fixed to the first fitting part and engages over the second fitting part radially outside, and a third fitting part which is pivotably mounted relative to the first fitting part and which can be locked by means of a toothed pawl with a latching element which is provided on the first fitting part, the toothed latching element is formed on the first fitting part.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: May 26, 2015
    Assignee: KEIPER GMBH & CO. KG
    Inventors: Ulrich Lehmann, Heinz Voss, Peter Thiel
  • Patent number: 8905481
    Abstract: A fitting for a vehicle seat has a first fitting part and a second fitting part in geared connection via a toothed wheel and a toothed ring, a circumferential eccentric, driven by a driver, for driving movement of the toothed wheel and the toothed ring, wherein the first fitting part receives the eccentric, which is supported on the second fitting part, wherein two wedge segments upon which a spring acts, define the eccentric, a retaining element which retains the eccentric in the non-driven state of the fitting by cooperating with at least one retaining lug of the retaining element via a toothing configured on the first fitting part, and which releases the eccentric, when it is driven by the driver, wherein the retaining element has at least one opening which is penetrated by the spring, the spring penetrates the retaining element at exactly one opening.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: December 9, 2014
    Assignee: Keiper GmbH & Co. KG
    Inventors: Christian Jokiel, Ulrich Lehmann
  • Patent number: 8905479
    Abstract: For a fitting for a vehicle seat, in particular for a motor vehicle seat, comprising a first fitting part and a second fitting part, which are in a transmission connection with each other by means of a spur gear and a ring gear, which mesh with each other, and comprising a rotating eccentric driven by a carrier for driving a relative rolling motion of the spur gear and the ring gear, wherein the first fitting part accommodates the eccentric, which is supported on the second fitting part, the fitting is associated with one of at least two load classes and comprises components that are parameterized in regard to the associated load class and components that are carry-over parts for all load classes, wherein the fitting parts are parameterized components and the eccentric is one of the carry-over parts.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: December 9, 2014
    Assignee: Keiper GmbH & Co. KG
    Inventors: Ulrich Lehmann, Martin Stilleke, Christian Jokiel, Artur Komainda, Eric Blass
  • Publication number: 20140210242
    Abstract: In a fitting system for a vehicle seat having at least one fitting by which a rest can be pivoted relative to a seat part from at least one use position to a non-use position, the fitting has a first fitting part with a toothed rim, a second fitting part, having at least one moving bolt which locks the fitting in the use position by interacting with the toothed rim, a prestressed eccentric which moves the bolt radially outward to interact with the toothed rim, and a control cam which moves the bolt radially inward in the event of rotation in the opening direction, to terminate interaction with the toothed rim. The control cam can be rotated in the closing direction in a manner uncoupled from the eccentric, to lock the fitting in the non-use position by interaction between the one bolt and the toothed rim.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 31, 2014
    Inventors: Rolf Schueler, Ulrich Lehmann
  • Publication number: 20140110984
    Abstract: For a recliner system for a vehicle seat, in particular a motor vehicle seat, comprising at least one recliner, which has a first recliner part and a second recliner part, which can be locked to each other and can be rotated relative to each other about an axis, a transfer rod, the rotation of which unlocks the recliner, and a hand lever, the operation of which rotates the transfer rod in order to unlock the recliner, a stop module is provided, which is operatively connected to the hand lever and to the transfer rod and which stops the hand lever and one of the recliner parts relative to each other in at least one rotational direction.
    Type: Application
    Filed: June 7, 2011
    Publication date: April 24, 2014
    Applicant: KEIPER GMBH & CO. KG
    Inventors: Uwe Assmann, Christoph Peters, Thomas Mayer, Ulrich Lehmann, Gunther Hille