Patents by Inventor Ingrid Kraetschmer

Ingrid Kraetschmer 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: 11795112
    Abstract: A method for producing the component, and to the use of the component. The method for producing a three-dimensional, ceramic component containing silicon carbide, by a) providing a powdery composition having a grain size (d50) between 3 microns and 500 microns and comprising at least 50 wt % of coke, b) providing a liquid binder, c) depositing a layer of the material provided in a) in a planar manner and locally depositing drops of the material provided in b) onto said layer and repeating step c), the local depositing of the drops in the subsequent repetitions of the step is adapted in accordance with the desired shape of the component to be produced, d) at least partially curing or drying the binder and obtaining a green body having the desired shape of the component, e) carbonising the green body, and f) siliconising the carbonised green body by infiltration with liquid silicon.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: October 24, 2023
    Assignee: SGL CARBON SE
    Inventors: Oswin Öttinger, Dominik Rivola, Stefan Klein, Andreas Kienzle, Ingrid Krätschmer
  • Patent number: 10336655
    Abstract: A process is provided for producing shaped bodies including carbon fiber reinforced carbon in which the fibers are present in the form of bundles having a defined length, width and thickness. The defined configuration of the fibers in the bundles allows a targeted configuration of the reinforcing fibers in the carbon matrix and thus a structure of the reinforcement which matches the stress of shaped bodies including carbon fiber reinforced carbon, for example brake disks.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: July 2, 2019
    Assignee: SGL Carbon SE
    Inventors: Andreas Kienzle, Ingrid Kraetschmer
  • Publication number: 20180339946
    Abstract: A method for producing the component, and to the use of the component. The method for producing a three-dimensional, ceramic component containing silicon carbide, by a) providing a powdery composition having a grain size (d50) between 3 microns and 500 microns and comprising at least 50 wt % of coke, b) providing a liquid binder, c) depositing a layer of the material provided in a) in a planar manner and locally depositing drops of the material provided in b) onto said layer and repeating step c), the local depositing of the drops in the subsequent repetitions of the step is adapted in accordance with the desired shape of the component to be produced, d) at least partially curing or drying the binder and obtaining a green body having the desired shape of the component, e) carbonising the green body, and 0 siliconising the carbonised green body by infiltration with liquid silicon.
    Type: Application
    Filed: November 24, 2016
    Publication date: November 29, 2018
    Applicant: SGL CARBON SE
    Inventors: Oswin ÖTTINGER, Dominik RIVOLA, Stefan KLEIN, Andreas KIENZLE, Ingrid KRÄTSCHMER
  • Patent number: 9975814
    Abstract: Silicon carbide composite materials contain CSiC with a density of 2.95 to 3.05 g/cm?3 and a fiber bundle content of 2 to 10 wt. %. The fiber bundles have a length of 6 to 20 mm, a width of 0.2 to 3 mm, and a thickness of 0.1 to 0.8 mm. The fiber bundles are filled with a cured phenolic resin content of up to 45 wt. %, and the protected fiber bundles are integrated into an SiC matrix. A method produces the silicon carbide composite materials.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: May 22, 2018
    Assignee: SGL Carbon SE
    Inventors: Tanja Damjanovic, Andreas Kienzle, Ingrid Kraetschmer
  • Publication number: 20170015594
    Abstract: A process is provided for producing shaped bodies including carbon fiber reinforced carbon in which the fibers are present in the form of bundles having a defined length, width and thickness. The defined configuration of the fibers in the bundles allows a targeted configuration of the reinforcing fibers in the carbon matrix and thus a structure of the reinforcement which matches the stress of shaped bodies including carbon fiber reinforced carbon, for example brake disks.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Inventors: ANDREAS KIENZLE, INGRID KRAETSCHMER
  • Patent number: 9085492
    Abstract: A method for producing a ceramic substance includes producing a homogeneous mixture containing carbon fibers having a fiber length distribution of D5=<15 ?m and at least one powdery and carbonizable binder. The homogeneous mixture is compacted under the action of pressure. The compacted homogeneous mixture is thermally treating for carbonizing, or for carbonizing and graphitizing, to obtain a carbon substance. The carbon substance is siliconized to obtain a ceramic substance.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: July 21, 2015
    Assignee: SGL Carbon SE
    Inventors: Andreas Kienzle, Ingrid Kraetschmer, Birgit Reiter
  • Patent number: 9046138
    Abstract: A cylindrical ring-shaped friction disc contains a support body, at least one friction layer, and in each case an intermediate layer arranged between the support body and the friction layer. The intermediate layer has mutually adjoining flat regions with different coefficients of thermal expansion. A method teaches how to produce such a friction disc, and to the use the friction disc as parts of brake and clutch systems, in particular for motor vehicles.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: June 2, 2015
    Assignee: SGL Carbon SE
    Inventors: Andreas Kienzle, Ingrid Kraetschmer
  • Patent number: 8906289
    Abstract: Method for manufacturing a friction disk including preparing a mixture including a carbide-forming element having an average particle size ?2,000 ?m, a resin, optionally a binder, and optionally fine carbon, and/or short carbon fibers; forming the mixture at ? to 280° C. to produce a molded body; heating the molded body to approximately 750° C. to approximately 1300° C. to form a porous carbon body including a carbon residue; heating the porous carbon body to a temperature above the melting point of the carbide-forming element thereby reacting the carbide-forming element with at least a portion of the carbon residue to yield an alveolar structure; infiltrating the alveolar structure with silicon at a temperature above the melting point of silicon thereby filling at least one pore of the alveolar structure with silicon and reacting the silicon with an amount of unreacted carbon residue to form silicon carbide; and obtaining a friction disk.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: December 9, 2014
    Assignee: Audi
    Inventors: Andreas Kienzle, Ingrid Krätschmer
  • Publication number: 20140339718
    Abstract: Silicon carbide composite materials contain CSiC with a density of 2.95 to 3.05 g/cm?3 and a fiber bundle content of 2 to 10 wt. %. The fiber bundles have a length of 6 to 20 mm, a width of 0.2 to 3 mm, and a thickness of 0.1 to 0.8 mm. The fiber bundles are filled with a cured phenolic resin content of up to 45 wt. %, and the protected fiber bundles are integrated into an SiC matrix. A method produces the silicon carbide composite materials.
    Type: Application
    Filed: August 4, 2014
    Publication date: November 20, 2014
    Inventors: TANJA DAMJANOVIC, ANDREAS KIENZLE, INGRID KRAETSCHMER
  • Patent number: 8748009
    Abstract: The present invention relates to a material including a matrix and at least one reinforcing element introduced therein, wherein the matrix is selected from the group consisting of plastic, carbon, ceramic, glass, clay, metal, and combinations thereof, and the reinforcing element is spherical to ellipsoidal in shape and has an onionskin-like structure. The present invention further relates to a method for producing a material including steps preparing at least one spherical to ellipsoidal reinforcing element having an onionskin-type structure, and introducing the reinforcing element into a matrix, wherein the matrix is selected from the group consisting of plastic, carbon, ceramic, glass, clay, metal, and combinations thereof. The present invention further relates to use of the material in a friction application, as abrasion protection, an injection molding part, a support plate, catalyst substrate or as bone replacement material.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: June 10, 2014
    Assignee: SGL Carbon SE
    Inventors: Wilhelm Frohs, Andreas Kienzle, Ingrid Krätschmer
  • Patent number: 8603374
    Abstract: A polymer-bonded fiber agglomerate includes short fibers selected from carbon, ceramic materials, glasses, metals and organic polymers, and a polymeric bonding resin selected from synthetic resins and thermoplastics. The fiber agglomerates have an average length, measured in the fiber direction, of from 3 mm to 50 mm and an average thickness, measured perpendicularly to the fiber direction, of from 0.1 mm to 10 mm. At least 75% of all of the contained fibers have a length which is at least 90% and not more than 110% of the fiber agglomerate average length. A fiber-reinforced composite material having the fiber agglomerate and processes for the production thereof are also provided.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: December 10, 2013
    Assignee: SGL Carbon SE
    Inventors: Peter Domagalski, Alfred Haeusler, Ingrid Kraetschmer, Andreas Kienzle, Dieter Wuestner
  • Publication number: 20130284558
    Abstract: A cylindrical ring-shaped friction disc contains a support body, at least one friction layer, and in each case an intermediate layer arranged between the support body and the friction layer. The intermediate layer has mutually adjoining flat regions with different coefficients of thermal expansion. A method teaches how to produce such a friction disc, and to the use the friction disc as parts of brake and clutch systems, in particular for motor vehicles.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 31, 2013
    Inventors: ANDREAS KIENZLE, INGRID KRAETSCHMER
  • Patent number: 8357320
    Abstract: A process for the impregnation of carbon fiber bundles enables the carbon fiber bundles to be impregnated with a curable liquid resin without the impregnated fiber bundles sticking together. The fiber bundles are present in a mechanically generated fluidized bed during the impregnation and are held in the fluidized bed until the resin has been cured or at least dried. A resin-impregnated carbon fiber bundle, a shaped body and an intermediate body for silicization are also provided.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: January 22, 2013
    Assignee: SGL Carbon SE
    Inventors: Andreas Kienzle, Ingrid Krätschmer
  • Publication number: 20110082033
    Abstract: The present invention relates to a material including a matrix and at least one reinforcing element introduced therein, wherein the matrix is selected from the group consisting of plastic, carbon, ceramic, glass, clay, metal, and combinations thereof, and the reinforcing element is spherical to ellipsoidal in shape and has an onionskin-like structure. The present invention further relates to a method for producing a material including steps preparing at least one spherical to ellipsoidal reinforcing element having an onionskin-type structure, and introducing the reinforcing element into a matrix, wherein the matrix is selected from the group consisting of plastic, carbon, ceramic, glass, clay, metal, and combinations thereof. The present invention further relates to use of the material in a friction application, as abrasion protection, an injection moulding part, a support plate, catalyst substrate or as bone replacement material.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 7, 2011
    Inventors: Wilhelm Frohs, Andreas Kienzle, Ingrid Krätschmer
  • Patent number: 6926127
    Abstract: Friction members are composed of a ceramic composite material. The friction members can be used for motor vehicles as a clutch disk for friction clutches, for transmitting motive power, or as a brake disk. A friction zone of the friction member is composed of ceramic, in particular of Si and SiC. A core zone of the friction member is made from fiber-reinforced C/SiC, in particular of long fiber woven fabric-reinforced and short fiber-reinforced C/SiC.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: August 9, 2005
    Assignee: SGL Carbon AG
    Inventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ingrid Krätschmer, Rainer Zimmermann-Chopin
  • Patent number: 6818288
    Abstract: Fiber-reinforced ceramic composites which comprise at least two layers of a multidirectional woven fiber fabric as reinforcement, with at least 5% of the area of each layer of woven fiber fabric being permeated by matrix material, friction disks comprising these composites as core zone or support zone, a process for producing them and their use as brake disks or clutch disks.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 16, 2004
    Assignee: SGL Carbon AG
    Inventors: Moritz Bauer, Andreas Kienzle, Ingrid Kraetschmer, Mario Krupka
  • Publication number: 20030129375
    Abstract: Fiber-reinforced ceramic composites which comprise at least two layers of a multidirectional woven fiber fabric as reinforcement, with at least 5% of the area of each layer of woven fiber fabric being permeated by matrix material, friction disks comprising these composites as core zone or support zone, a process for producing them and their use as brake disks or clutch disks.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 10, 2003
    Inventors: Moritz Bauer, Andreas Kienzle, Ingrid Kraetschmer, Mario Krupka