Patents by Inventor Lothar Schafer

Lothar Schafer 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: 20180136369
    Abstract: A coated object and a method for producing a coated object are disclosed. In an embodiment, the coated object includes a substrate and an optical coating disposed on the substrate, wherein the optical coating includes a reflection-reducing layer sequence, which includes a covering layer with a refractive index nA and at least one diamond layer with a refractive index nD1>nA, wherein the diamond layer is disposed between the covering layer and the substrate and includes diamond crystals, and wherein the diamond layer has a layer thickness of less than 500 nm.
    Type: Application
    Filed: April 13, 2016
    Publication date: May 17, 2018
    Inventors: Michael Vergöhl, Stefan Bruns, Hans-Ulrich Kricheldorf, Lothar Schäfer, Markus Höfer, Markus Armgardt
  • Patent number: 9010762
    Abstract: The present invention refers to a seal ring for a mechanical seal, comprising: a base body (2) with a diamond layer (3) which is applied to the base body (2) and configured as a sliding surface, wherein the diamond layer (3) has a thickness (D) which is less than or equal to 4 ?m, particularly less than or equal to 3 ?m, particularly less than or equal to 2 ?m, particularly preferably about 1 ?m, and wherein the base body (2) is without fissures or only comprises fissures that have a maximum longitudinal extension (L) on a surface of the base body (2) or in the base body (2) that is less than or equal to 5 ?m.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: April 21, 2015
    Assignee: EagleBurgmann Germany GmbH & Co. KG
    Inventors: Joachim Otschik, Andreas Schrüfer, Dieter Ziegenbein, Rudolf Kollinger, Lothar Schäfer, Markus Höfer, Markus Armgardt
  • Patent number: 8986452
    Abstract: A coating installation containing at least one recipient which can be evacuated and which is adapted to accommodate a substrate, at least one gas supply device which is used to introduce at least one gaseous precursor into the recipient and at least one heatable activation element which has a definable longitudinal extension and which is fastened by means of at least one associated mechanical fastening device to be virtually immobile relative to the recipient. In a corresponding method, an electric current can be supplied to the activation element via at least two contact elements and at least one of the contact elements is designed to contact the activation element in alternating contact points.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 24, 2015
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Tino Harig, Markus Höfer, Artur Laukart, Lothar Schäfer, Markus Armgardt
  • Patent number: 8940367
    Abstract: A coating installation includes at least one recipient which can be evacuated and which is provided to receive a substrate, at least one gas supply device which can introduce at least one gaseous precursor into the recipient, and at least one activation device which contains at least one heatable activation element, the end thereof being secured to a securing point on a support element. A shielding element which can protect at least the securing point at least partially against the effect of the gaseous precursor is provided. The shielding element has a longitudinal extension having a first side and a second side, the first side being arranged on the support element and a locking element being arranged on the second side of the shielding element, the locking element having at least one outlet. At least one separation wall is arranged inside the shielding element, the wall separating the inner volume of the shielding element into a first partial volume and into a second partial volume.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 27, 2015
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Tino Harig, Markus Höfer, Artur Laukart, Lothar Schäfer, Markus Armgardt
  • Publication number: 20130313785
    Abstract: The present invention refers to a seal ring for a mechanical seal, comprising: a base body (2) with a diamond layer (3) which is applied to the base body (2) and configured as a sliding surface, wherein the diamond layer (3) has a thickness (D) which is less than or equal to 4 ?m, particularly less than or equal to 3 ?m, particularly less than or equal to 2 ?m, particularly preferably about 1 ?m, and wherein the base body (2) is without fissures or only comprises fissures that have a maximum longitudinal extension (L) on a surface of the base body (2) or in the base body (2) that is less than or equal to 5 ?m.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 28, 2013
    Applicant: EAGLEBURGMANN GERMANY GMBH & CO. KG
    Inventors: Joachim Otschik, Andreas Schrüfer, Dieter Ziegenbein, Rudolf Kollinger, Lothar Schäfer, Markus Höfer, Markus Armgardt
  • Publication number: 20130168928
    Abstract: The present invention refers to a seal ring comprising: a base region (20), a diamond coating (21) applied to the base region (20), and a lubricant coating (22) applied to the diamond coating (21), which adheres to the diamond coating and fills recesses (23) of the diamond coating (21). Furthermore, the present invention refers to a mechanical seal comprising at least one seal ring according to the invention.
    Type: Application
    Filed: March 22, 2011
    Publication date: July 4, 2013
    Applicant: EagleBurgmann Germany GmbH & Co. KG
    Inventors: Andreas Schrüfer, Jörg Thelke, Michael Riedl, Lothar Schäfer, Markus Armgardt, Markus Höfer
  • Patent number: 8453532
    Abstract: The invention relates to a method for setting the tooth face position of a gear wheel (2), which is non-positively connected to a double-skewed pinion shaft (1). A hydraulic press fit (4, 4a) is formed between the gear wheel (2) and pinion shaft (1) for relieving a non-positive connection of the gear wheel (2) shrink-fitted onto the pinion shaft (1). The setting is carried out by determining a tooth face apex point (A) of the double-skew of the pinion shaft (1). A radial plane (E) with a predetermined axial offset (AV) from the tooth face apex point (A) and a radial offset (RV) with respect to the tooth face apex point (A) are defined. The intersecting point (S) of a tooth face (11) of the gear wheel (2) must be located with the predetermined radial offset (RV) in the radial plane (E).
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: June 4, 2013
    Assignee: Jahnel-Kestermann Getriebewerke GmbH & Co. KG
    Inventors: Lothar Schäfer, Horst Wawro
  • Publication number: 20120135144
    Abstract: A coating installation includes at least one recipient which can be evacuated and which is provided to receive a substrate, at least one gas supply device which can introduce at least one gaseous precursor into the recipient, and at least one activation device which contains at least one heatable activation element, the end thereof being secured to a securing point on a support element. A shielding element which can protect at least the securing point at least partially against the effect of the gaseous precursor is provided. The shielding element has a longitudinal extension having a first side and a second side, the first side being arranged on the support element and a locking element being arranged on the second side of the shielding element, the locking element having at least one outlet. At least one separation wall is arranged inside the shielding element, the wall separating the inner volume of the shielding element into a first partial volume and into a second partial volume.
    Type: Application
    Filed: May 13, 2010
    Publication date: May 31, 2012
    Inventors: Tino Harig, Markus Höfer, Artur Laukart, Lothar Schäfer, Markus Armgardt
  • Publication number: 20120114855
    Abstract: A coating method can use a coating device containing at least one recipient which can be evacuated and which is adapted to accommodate a substrate, at least one gas supply device which is used to introduce at least one gaseous precursor into the recipient and at least one heatable activation element which has a definable longitudinal extension and which is fastened by means of at least one associated mechanical fastening device. Electric current can be supplied to the activation element via at least two contact elements and the contact elements are fastened so as to be virtually immobile relative to the recipient. The activation element is arranged so as to be mobile relative to the recipient.
    Type: Application
    Filed: May 17, 2010
    Publication date: May 10, 2012
    Inventors: Tino Harig, Markus Höfer, Artur Laukart, Lothar Schäfer, Markus Armgardt
  • Publication number: 20120107501
    Abstract: A coating installation containing at least one recipient which can be evacuated and which is provided to receive a substrate, at least one gas supply device which can introduce at least one gaseous precursor into the recipient, and at least one activation device which contains at least one heatable activation element, the end thereof being secured to a securing point on a support element. In the related method, the activation element can be heated by at least one first heating device and at least one second heating device, the first heating device enabling energy to be input in a uniform manner over the longitudinal extension of the activation element and the second heating device enabling energy to be input in a changeable manner over the longitudinal extension of the activation element such that the temperature of the activation element, in at least one longitudinal section, can be brought to over 1300° C. due to the effect of the second heating element.
    Type: Application
    Filed: May 13, 2010
    Publication date: May 3, 2012
    Inventors: Tino Harig, Markus Höfer, Artur Laukart, Lothar Schäfer, Markus Armgardt
  • Publication number: 20110318490
    Abstract: A coating apparatus and method for depositing a coating that contains at least one first element on a substrate by an activated vapor deposition, wherein the substrate is introduced into a gas atmosphere that contains at least the first element, and the gas atmosphere is activated by a heated activation element, wherein the first element is selected from among silicon, germanium, carbon, boron, or nitrogen, and the material of the activation element contains at least one metal and at least one second element, wherein the second element is selected from among silicon, boron, germanium, carbon, and/or nitrogen and is different from the first element.
    Type: Application
    Filed: March 1, 2010
    Publication date: December 29, 2011
    Applicant: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Lothar Schäfer, Markus Höfer, Tino Harig, Artur Laukart
  • Publication number: 20070175624
    Abstract: The invention relates to a device for temperature regulation/limitation in a heat generating installation, said device comprising at least one probe (Tk) that is connected to a regulator (20) which, in turn, is connected to an automatic heating system (40) by means of a communication interface (30). The inventive device is characterised in that the automatic heating system (40) comprises a safety module (41) which compares the temperature detected by the probe, forwarded to the regulator and transmitted from the regulator to the automatic heating system by means of the communication interface, with a maximum admissible safety temperature (TSTB) stored in the safety module (41), and in that, once the safety temperature is reached or exceeded, the safety module (41) generates a cut-off signal which causes the installation to be cut off by the automatic heating system.
    Type: Application
    Filed: March 18, 2004
    Publication date: August 2, 2007
    Applicant: Siemens Building Technologies AG
    Inventors: Erhard Affolter, Rene Joubert, Josef Lelle, Lothar Schafer
  • Patent number: 6850598
    Abstract: The invention relates to an x-ray anode and a process for its manufacture. The x-ray anode is characterized in that the anode material is embodied as a layer on a diamond window. The x-ray anode is preferably used with x-ray units which require as selective as possible x-radiation production to achieve as high as possible radiation intensity. Use in x-ray microscopes in which a high radiation intensity guarantees the highest resolutions is particularly preferred.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: February 1, 2005
    Assignee: Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Matthias Fryda, Lothar Schafer, Thorston Matthee
  • Patent number: 6794014
    Abstract: A gemstone is provided and has a large surface-area, plate-shaped support having a surface with least one pyramid-shaped depression. A thin vapor phase deposit layer comprises a thin, surface-shaped precious synthetic gemstone layer disposed on the large surface-area, plate-shaped support and has an upper surface facing away from the plate-shaped support and an underside having at least one pyramid-shaped projection disposed in and coinciding with the pyramid-shaped depression of the support. Side faces of the pyramid-shaped projections of the underside of the vapor phase deposit layer upon the plate-shaped support impart decorative, diamond-light-reflective qualities to the synthetic gemstone layer.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: September 21, 2004
    Assignee: Winter CVD Tecknik GmbH
    Inventors: Ernst Michael Winter, Lothar Schäfer, Thorsten Matthee
  • Patent number: 6558380
    Abstract: An instrument for surgical purposes, especially for coagulation, is proposed. This instrument has at least one arm, the tips of the arms having electrical contact regions which can be electrically connected to a control unit for touching a tissue for the purpose of coagulation. The contact regions are formed from doped diamond to produce the electrical conductivity.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: May 6, 2003
    Assignee: GFD Gesellschaft fur Diamantprodukte mbH
    Inventors: Christian Lingenfelder, Stephan Ertl, Stefan Strobel, Rudolf Rösch, Siegfried Förster, Matthias Fryda, Lothar Schäfer, Inga Tröster, Dennie Herrmann
  • Patent number: 6487986
    Abstract: In an apparatus for depositing polycrystalline diamond by plasma technology onto substrates (5) of large area, having a process chamber (1) with airlock (6a), a plurality of microwave plasma sources (9, 9′, . . . ) arranged in a common plane above the substrates (5) and extending transversely across the direction of substrate advancement, and gas inlet and gas outlet tubes (10, 10′, . . . , 11, 11′, . . . , 12, 12′, . . . , 13, 13′, . . . , 13a, . . . ) leading into the process chamber (1) are provided, a plurality of gas inlet and gas outlet tubes distributed over the length of the source are associated with each of the linear sources (9, 9′, . . . ), and the outlet openings of the gas inlet tubes being situated each directly above the linear source (9, 9′, . . . ), and the openings of the gas outlet tubes (13, 13′, . . . ) each in the area between two linear sources (9, 9′, . . .
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: December 3, 2002
    Assignees: Unaxis Deutschland Holding GmbH, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Michael Liehr, Lothar Schäfer
  • Publication number: 20020072746
    Abstract: An instrument for surgical purposes, especially for coagulation, is proposed. This instrument has at least one arm (2), the tips (4) of the arms having electrical contact regions (6, 7), which can be electrically connected to a control unit (12), for touching a tissue (13) for the purpose of coagulation. The contact regions are formed from doped diamond to produce the electrical conductivity.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 13, 2002
    Inventors: Christian Lingenfelder, Stephan Ertl, Stefan Strobel, Rudolf Rosch, Siegfried Forster, Matthias Fryda, Lothar Schafer, Inga Troster, Dennie Herrmann
  • Publication number: 20010049003
    Abstract: A gemstone has a plate-shaped support having a surface with at least one pyramid-shaped depression. A precious stone layer is produced by vapor phase deposition on the plate-shaped support. The precious stone layer can be cut.
    Type: Application
    Filed: July 29, 1999
    Publication date: December 6, 2001
    Inventors: ERNST MICHAEL WINTER, LOTHAR SCHAFER, THORSTEN MATTHEE
  • Patent number: 6042886
    Abstract: In a method for the manufacture of a coating on a grinding tool, a rough diamond layer (8, 10) is produced as an abrasive layer on the surface (2) of the body (1) of the grinding tool by vapor-phase deposition. This diamond layer is deposited on the grinding tool by the Hot Filament Chemical Vapor Deposition (HF-CVD) process.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: March 28, 2000
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Thorsten Matthee, Lothar Schafer
  • Patent number: 5112649
    Abstract: Method of depositing micro-crystalline solid particles from a vapor phase containing a carbonaceous gas using chemical vapor deposition (CVD), in which the solid particles to be deposited are deposited at a pressure in the range from 10.sup.-5 to 1 bar onto a substrate which has been heated to a temperature in the range from 450.degree. to 1200.degree. C. and in which the chemical vapor phase reactions are effected in the gas phase which is thermally energized by means of a resistance heat conductor, a resistance heat conductor made of a carbide of at least one transition metal from the secondary group IVa to VIa of the periodic element system (PSE) with a carbon content which substantially corresponds to a stoichiometrical composition of the carbide and having a melting point of >2000.degree. C. being used.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: May 12, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Udo Bringmann, Claus-Peter Klages, Rolf Six, Lothar Schafer