Patents by Inventor Wolfgang Lehmann

Wolfgang 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).

  • Patent number: 11976625
    Abstract: Components are fastened with inserts that are placed into a hole in the component and bonded with an adhesive. A decoupling element is provided on the front face of the insert. This diverts the forces around the highly stressed front face of the inserts. The insert may be of a material with a lower stiffness compared with the adhesive. This arrangement may reduce stress peaks and increase the load capacity of the connection. A tool may be provided that reduces air inclusion between the insert and the component during fitting. The connection arrangement can be used when components of different stiffnesses have to be securely connected to one another. This applies to, among other things, fastening of fibre composite components or mineral components to metal components.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 7, 2024
    Assignee: ADC CONNECTION SOLUTIONS GMBH
    Inventors: Wolfgang Heydlauff, Jan Lehmann
  • Publication number: 20230249410
    Abstract: A laser calibration device includes a scanning surface, an optical detector for scanning a calibration substrate arranged on the scanning surface, and a processing unit. The optical detector is movable with respect to the scanning surface with not more than two, preferably not more than one, degree of freedom. The processing unit is configured for: generating pattern generation executable instructions to generate a calibration pattern on a calibration substrate by one or more laser processing devices of a laser processing apparatus; detecting a calibration pattern generated based on such pattern generation executable instructions; and based on a detected calibration pattern and on the corresponding pattern generation executable instructions, generating calibration executable instructions for calibrating the one or more laser processing devices of said laser processing apparatus.
    Type: Application
    Filed: January 16, 2023
    Publication date: August 10, 2023
    Inventors: Berthold Dambacher, Wolfgang Lehmann
  • Patent number: 11648735
    Abstract: Arrangement (10) for the powder-bed-based additive manufacturing of a component (100), wherein the arrangement (10) comprises the following: a housing (12), which comprises a building volume (14), wherein the building volume (14) comprises a building area (16); at least three marker devices (20), which are fastened in or on the housing (12), wherein each marker device (20) is suitable for projecting a light reference marking (22) onto a component (100) lying on the building area (16) and/or onto the building area (16); a laser device (30) for the laser processing of a powder bed for generating a component (100) on the building area (16) by means of additive manufacturing, wherein the laser device (30) is set up for the laser processing of an associated working area (32a-32d), wherein the laser device (30) comprises a detection device (34), which is set up to sense the light reference markings (22); and a control unit (40), which is set up to calibrate the laser device (30) on the basis of the light reference
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 16, 2023
    Assignee: RAYLASE GmbH
    Inventor: Wolfgang Lehmann
  • Patent number: 11402626
    Abstract: The present invention relates to a deflection unit (10) having an optical element (20), which partly reflects a first wavelength and which partly transmits a different, second wavelength. The deflection unit defines an operating beam path traversed by the operating beam (14) from a first window (12) to a second window (24) via a reflection at the optical element (20). The deflection unit comprises an XY-deflection device (22), which is arranged in the operating beam path in order to scan the operating beam that has emerged, a focusing device (16) for focusing the operating beam (14), wherein the focusing device has a variable focal length and is arranged in the operating beam path between the first window (12) and the optical element (20).
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: August 2, 2022
    Assignee: RAYLASE GmbH
    Inventors: Carl Boehmer, Wolfgang Lehmann, Christian Schiefen, Philipp Schoen
  • Publication number: 20210323087
    Abstract: The present invention relates to a laser processing system (10) comprising a frame structure (12); a work base (14) for supporting a work material (16), wherein the work base (14) defines a work field (28) in a work plane (18), wherein the work plane (18) is parallel to the work base (14); at least one laser device (20) for projecting work light on the work plane (18) and/or on the work material (16), when the work material (16) is disposed on the work base (14), wherein the at least one laser device (20) is attached to the frame structure (12); wherein each laser device (20) is configured for generating one or more reference marks (24) on the work material (16) and/or on the work plane (18) within the corresponding laser field (30), wherein the laser field (30) corresponds to at least a part of the work field (28); an optical detector (40) for scanning the work field (28) for detecting at least a part of the one or more reference marks (24) generated by each laser device (20), wherein the optical detector (4
    Type: Application
    Filed: October 11, 2019
    Publication date: October 21, 2021
    Inventor: Wolfgang Lehmann
  • Publication number: 20200156313
    Abstract: Arrangement (10) for the powder-bed-based additive manufacturing of a component (100), wherein the arrangement (10) comprises the following: a housing (12), which comprises a building volume (14), wherein the building volume (14) comprises a building area (16); at least three marker devices (20), which are fastened in or on the housing (12), wherein each marker device (20) is suitable for projecting a light reference marking (22) onto a component (100) lying on the building area (16) and/or onto the building area (16); a laser device (30) for the laser processing of a powder bed for generating a component (100) on the building area (16) by to means of additive manufacturing, wherein the laser device (30) is set up for the laser processing of an associated working area (32a-32d), wherein the laser device (30) comprises a detection device (34), which is set up to sense the light reference markings (22); and a control unit (40), which is set up to calibrate the laser device (30) on the basis of the light referen
    Type: Application
    Filed: June 26, 2018
    Publication date: May 21, 2020
    Inventor: Wolfgang Lehmann
  • Publication number: 20190310463
    Abstract: The present invention relates to a deflection unit (10) having an optical element (20), which partly reflects a first wavelength and which partly transmits a different, second wavelength. The deflection unit defines an operating beam path traversed by the operating beam (14) from a first window (12) to a second window (24) via a reflection at the optical element (20). The deflection unit comprises an XY-deflection device (22), which is arranged in the operating beam path in order to scan the operating beam that has emerged, a focusing device (16) for focusing the operating beam (14), wherein the focusing device has a variable focal length and is arranged in the operating beam path between the first window (12) and the optical element (20).
    Type: Application
    Filed: October 27, 2017
    Publication date: October 10, 2019
    Inventors: Carl Boehmer, Wolfgang Lehmann, Christian Schiefen, Philipp Schoen
  • Publication number: 20170137977
    Abstract: A machine-direction oriented tape comprising a blend of 65-95% wt % HDPE and 5-35% wt % PP optionally including fillers and UV additives displays physical and UV stability properties at least equal to commercially available oriented tape produced from PP or PE and can be used to produce woven fabric for applications such as ground cover and FIBC bags.
    Type: Application
    Filed: September 6, 2016
    Publication date: May 18, 2017
    Inventors: Wolfgang Lehmann, Jeffrey L. Hemmer, Eldridge M. Mount, III
  • Publication number: 20150183194
    Abstract: A base fabric made of polypropylene and/or polyethylene tapes or fibers is laminated with a polyolefin film coating. The laminated fabric may be used to make a shipping sack.
    Type: Application
    Filed: December 29, 2014
    Publication date: July 2, 2015
    Inventors: Wolfgang Lehmann, Roger Bannister
  • Publication number: 20130045346
    Abstract: A machine-direction oriented tape comprising a blend of 65-95% wt % HDPE and 5-35% wt % PP optionally including fillers and UV additives displays physical and UV stability properties at least equal to commercially available oriented tape produced from PP or PE and can be used to produce woven fabric for applications such as ground cover and FIBC bags.
    Type: Application
    Filed: July 17, 2012
    Publication date: February 21, 2013
    Applicant: GREIF FLEXIBLES TRADING HOLDING B.V.
    Inventors: Wolfgang Lehmann, Jeffrey L. Hemmer, Eldridge M. Mount, III
  • Patent number: 6808050
    Abstract: The invention relates to a brake disc for a rail vehicle, with which a hub body (16) and a brake ring (12) are connected to one another such that with braking procedures a thermal expansion of the brake ring (12) relative to the hub body (16) is possible. At the same time screws (15) pass through axially aligned openings in a hub flange (14) arranged on the hub body (16) and a brake ring flange (13) arranged on the brake ring (12). According to the invention the screws at their end exiting the brake ring flange (13), by way of a retaining element which, for example, may be a retaining lug (17) formed integrally on the hub body (16) or a retaining bracket fixed on the hub body, may be fixed relative to the hub body (16) so that an axially parallel position of the screws (15) and a centering of the brake ring (12) is ensured even with thermal expansions.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: October 26, 2004
    Assignee: SAB Wabco BSI Verkehrstechnik Produtcs, GmbH
    Inventors: Wolfgang Lehmann, Manfred Gronemann, Helmut Ruppert, John Watson
  • Patent number: 6755023
    Abstract: In order to evacuate a turbine condenser, air contained in the turbine condenser is suctioned using propellant steam from a starting jet pump. The propellant steam and the air are guided into an auxiliary condenser which is arranged downstream from turbine condenser.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: June 29, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Koenig, Wolfgang Lehmann
  • Publication number: 20040031651
    Abstract: The invention relates to a brake disc for a rail vehicle, with which a hub body (16) and a brake ring (12) are connected to one another such that with braking procedures a thermal expansion of the brake ring (12) relative to the hub body (16) is possible. At the same time screws (15) pass through axially aligned openings in a hub flange (14) arranged on the hub body (16) and a brake ring flange (13) arranged on the brake ring (12). According to the invention the screws at their end exiting the brake ring flange (13), by way of a retaining element which e.g. may be a retaining lug (17) formed integrally on the hub body (16) or a retaining bracket fixed on the hub body, may be fixed relative to the hub body (16) so that an axially parallel position of the screws (15) and a centering of the brake ring (12) is ensured even with thermal expansions. The mounting of the screws (15) is effected indirectly via an axially displaceably movable sleeve (20) or by a retaining braket engaging into a groove on the hub.
    Type: Application
    Filed: December 5, 2002
    Publication date: February 19, 2004
    Inventors: Wolfgang Lehmann, Manfred Gronemann, Helmut Ruppert, John Watson
  • Publication number: 20030000215
    Abstract: In order to evacuate a turbine condenser, air (L) contained in the turbine condenser (1) is suctioned using propellant steam from a starting jet pump (19). According to the invention the propellant steam (D) and the air (L) are guided into an auxiliary condenser (5) which is arranged downstream from said turbine condenser (1).
    Type: Application
    Filed: August 9, 2002
    Publication date: January 2, 2003
    Inventors: Thomas Koenig, Wolfgang Lehmann
  • Patent number: 5632492
    Abstract: A sealing configuration for a passage through a stationary casing having a shaft leading through the passage and an inner space being enclosed by the stationary casing for receiving a fluid and from which the shaft emerges, includes at least one vapor chamber surrounding the shaft, having two sides and being open to the surroundings. Seals are disposed adjacent the vapor chamber on both of the sides along an axis of the shaft for admitting the fluid to the vapor chamber through at least one of the seals. A suction device is connected to the vapor chamber. A method for operating the sealing configuration includes extracting the fluid from the vapor chamber with the suction device, except for a residual quantity of the fluid being led away to the surroundings.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: May 27, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Lehmann, Detlef Friebe
  • Patent number: 5577836
    Abstract: The headlamp has a housing in which a reflector is arranged adjustably. Engaging on the reflector is an adjusting element which can be moved along its longitudinal axis to make an adjustment. At its end, the adjusting element has a ball head which is arranged in a ball socket connected to the reflector. At the transition between the adjusting element and the ball head there is, over part of the circumference, a flattened portion by which a shoulder is formed. Over the rest of the circumference the transition from the adjusting element to the ball head is stepless. The ball socket has a resilient locking member which can engage on the shoulder, in a rotational position of the adjusting element, to secure the ball head from being pulled out. In another rotational position, the locking member engages on the stepless transition between the adjusting element and ball head so that the ball head can be pulled out of the ball socket and the adjusting element can be removed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 26, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Albert Vent, Wolfgang Lehmann
  • Patent number: 5465195
    Abstract: A headlight for motor vehicles has a reflector, a lamp support, a gas discharge lamp arranged in the reflector on the lamp support and including a region extending in the reflector and a glass cylinder which at least partially absorbs light in UV-wavelength range and surrounds the region of the gas discharge lamp, and a light stop which at least partially screens a light emitted by the gas discharge lamp. The light stop is at least indirectly mounted on the reflector, the glass cylinder is held on the light stop at least in its end region facing a light direction, the glass cylinder adjoins the lamp support, and the lamp support and the gas cylinder are arranged so that an opening leading to an interior of the glass cylinder remains between the lamp support and the glass cylinder.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: November 7, 1995
    Assignee: Robert Bosch GmbH
    Inventors: Bert Jenner, Hans-Joachim Schmidt, Giancarlo Chiaramonte, Wolfgang Lehmann
  • Patent number: 5429214
    Abstract: A ventilated brake disc for rail vehicles of a divided or undivided design is provided. The brake disc comprises a brake ring with ribs connected to the hub. Projections for fastening the brake ring to the hub are connected to selected ribs having recesses. In another design the brake ring, within its neutral range, is provided with projections arranged opposite one another at a dividing groove, each projection having a respective tangential bore for receiving a screw for fastening the sections of the divided brake ring, whereby a portion of the ribs in the area of the projections extends radially inwardly and radially outwardly from the projections. In another design first projections have respective first tangential bores aligned with one another for receiving a first screw are positioned opposite one another at a dividing groove of the brake ring in the vicinity of its inner circumference.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: July 4, 1995
    Assignee: Bergische Stahl-Industrie
    Inventors: Wolfgang Wiebelhaus, Jurgen Schneider, Hans Rocholl, Manfred Gronemann, Wolfgang Lehmann
  • Patent number: 5360087
    Abstract: An assembled brake disc for a disc brake with partial lining is comprised of two components in the form of a brake ring and a hub and at least one dog and at least one corresponding groove. The components are connected to one another by the dog extending into the groove. The dog has outer contact surfaces resting at mating inner side walls of the groove. At least one of the outer contact surfaces and a corresponding one of the mating inner side walls are slanted relative to an axial direction of the brake disc. The brake disc further comprises screws extending parallel to the axial direction for pressing the outer contact surfaces against the mating inner side walls.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: November 1, 1994
    Assignee: Bergische Stahl-Industrie
    Inventors: Wolfgang Wiebelhaus, Manfred Gronemann, Wolfgang Lehmann, Jurgen Schneider, Hans Rocholl
  • Patent number: 5220800
    Abstract: In an NMR magnet system for generating a highly homogeneous magnetic field of high field strength, with at least one superconducting magnet coil which is arranged in a first chamber of a cryostat in supercooled liquid helium at a temperature of less than 4.2K, with the cryostat having at least one further chamber containing liquid helium that is essentially at atmospheric pressure with a temperature of approximately 4.2K, the first chamber is connected to the further chamber in such a way that the supercooled liquid helium located in the first chamber is also essentially at atmospheric pressure. A refrigerator with which the liquid helium can be cooled to a temperature T<<4.2K, especially to T.apprxeq.1.8-2.3K, is provided in the first chamber.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: June 22, 1993
    Assignees: Bruker Analytische Messtechnik GmbH, Kernforschungszentrum Karlsruhe GmbH
    Inventors: Wolfgang H. Muller, Gerhard Roth, Wolfgang Stautner, Peter Turowski, Wolfgang Lehmann, Franz Graf