Patents by Inventor Eberhard Ernst

Eberhard Ernst 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: 11577311
    Abstract: The present invention relates to a punching tool of a sintering press, comprising at least one lower punch and an upper punch, a first punch of the upper punch and/or lower punch having a top piece that is asymmetric with respect to an axial axis of the punch press. The first punch has a geometry which widens from the top piece towards a base and is also asymmetric with respect to the axial axis of the punch press. The invention further relates to a method for pressing at least one powdery material to a green body in a sintering press.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: February 14, 2023
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Rainer Schmitt, Robert Maassen, Eberhard Ernst, Hasim Tekines
  • Patent number: 11577312
    Abstract: A tool and die set and related method of use of the tool and die set in a press for the compaction of a powder metal into a preform involves an uneven amount of positional deflection of at least two lower or upper tool members. This asymmetrical elastic response under load may help to eliminate cracking of the part after the compressive load is removed.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: February 14, 2023
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Eberhard Ernst, Donald D. Cooper, Hasim Tekines, Guido Schneider, Rainer Schmitt
  • Patent number: 11577310
    Abstract: A sintering press includes at least one upper punch and a lower punch, a powder reservoir for filling a female die of the sintering press with at least one powder material that can be sintered, and a female die for producing a green body using the powder material from the powder reservoir. A first punch of the upper punches and/or lower punches has a punch top which is off-center and asymmetric with respect to an axial axis of the sintering press and which can be moved in the female die. The first punch is asymmetric in shape between the punch top and the base, which shape at least reduces an axial tilting of the punch and a lateral drag of the punch top on an adjacent outer surface in the female die during insertion and extraction therefrom during a pressing step in the production of the green body.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: February 14, 2023
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Rainer Schmitt, Robert Maassen, Eberhard Ernst, Hasim Tekines
  • Patent number: 11572272
    Abstract: A process for producing a hydrogen storage means. Separate layers comprising a hydrogen-storing material and a heat-conducting material are introduced into a press mold. The separate layers of the hydrogen-storing material and the heat-conducting material are compressed together to generate a sandwich structure. The heat-conducting material, on use of the sandwich structure as hydrogen storage means, assumes the task of conducting heat.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 7, 2023
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, René Lindenau, Anastasia Özkan, Lars Wimbert
  • Patent number: 11332365
    Abstract: The present invention concerns a hydrogen store comprising a hydrogenable material, and a method for producing a hydrogen store.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: May 17, 2022
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Antonio Casellas, Eberhard Ernst
  • Patent number: 11142454
    Abstract: The present invention concerns a hydrogen store comprising a composite material including a hydrogenable material, a method for producing the hydrogen store and a device for producing the hydrogen store.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: October 12, 2021
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, Markus Laux, Lars Wimbert
  • Patent number: 11103924
    Abstract: The invention relates to a powder press, comprising a tool structure, which has a conical substructure having lower rams nested in each other, wherein each lower ram has a longitudinal extent, in particular a cylindrical longitudinal extent, which is guided in a die, wherein, in the case of at least two longitudinal extents of the lower rams, each longitudinal extent is adjoined by a conical enlargement, wherein the conical enlargements can be guided in each other, wherein the region of the conical enlargement has an inner wall and an outer wall, which expand conically and which are preferably longer than the longitudinal extent. The invention further relates to a method for operating a powder press and to a computer program product having computer program code means that can be executed on a computer system in order to perform the method.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 31, 2021
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Rainer Schmitt, Eberhard Ernst
  • Patent number: 10919250
    Abstract: The present invention relates to an apparatus, preferably a press, comprising a cavity which is to be filled and at least a first material feed, for a first material, and a second material feed, for a second material, wherein the first and the second material feeds are arranged separately from one another, having a feeding apparatus for feeding the first and the second materials into the cavity which is to be filled, wherein the feeding apparatus has a mouth-opening cross section with at least a first region of the mouth-opening cross section for the first material, and with a second, separate region of the mouth-opening cross section for the second material, for filling the cavity preferably in parallel, and at separate locations. A method and also a blank are proposed in addition.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: February 16, 2021
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, Anastasia Özkan, Thomas Schupp
  • Patent number: 10890241
    Abstract: The present invention relates to a gear wheel containing at least one sintered material having a porosity, the gear wheel having, in addition to the porosity, another noise-reducing means.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 12, 2021
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Björn Leupold, Simon Höges, Markus Schneider, Thomas Schupp, Vitali Janzen, Gerhard A. Kotthoff, Eberhard Ernst
  • Patent number: 10632538
    Abstract: The invention relates to a method for producing a green compact composite comprising at least a first partial green compact and a second partial green compact, wherein, within one pressing cycle, a powder is introduced into a filling chamber and then separated into a first partial quantity and into a second partial quantity, and, within the same pressing cycle, the respective partial quantities are pressed to form a first partial green compact and a second partial green compact and the partial green compacts are amalgamated after the pressing, wherein the amalgamation forms a press fit between the first partial green compact and the second partial green compact and produces a predetermined breaking point in the green compact composite. Furthermore, the invention proposes a green compact composite, a sintered component and also a press, each of which can be based on the proposed method.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: April 28, 2020
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Alexander Hüllen, Rainer Schmitt, Eberhard Ernst
  • Publication number: 20200062589
    Abstract: A process for producing a hydrogen storage means. Separate layers comprising a hydrogen-storing material and a heat-conducting material are introduced into a press mold. The separate layers of the hydrogen-storing material and the heat-conducting material are compressed together to generate a sandwich structure. The heat-conducting material, on use of the sandwich structure as hydrogen storage means, assumes the task of conducting heat.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, René Lindenau, Anastasia Özkan, Lars Wimbert
  • Publication number: 20190358704
    Abstract: A tool and die set and related method of use of the tool and die set in a press for the compaction of a powder metal into a preform involves an uneven amount of positional deflection of at least two lower or upper tool members. This asymmetrical elastic response under load may help to eliminate cracking of the part after the compressive load is removed.
    Type: Application
    Filed: February 8, 2018
    Publication date: November 28, 2019
    Inventors: Eberhard Ernst, Donald D. Cooper, Hasim Tekines, Guido Schneider, Rainer Schmitt
  • Patent number: 10456764
    Abstract: A catalyst bed configuration, in particular for olefin conversion by metathesis, comprising at least one main catalyst bed comprising a) at least one first catalyst component comprising a metathesis catalyst, and b) at least one second catalyst component comprising a catalyst for double bond isomerization, whereby the first and second catalyst are intimate mixed with each other, and at least one catalyst pre-bed arranged upstream of the at least one main catalyst bed comprising at least one compound selected from the group of alkaline earth oxides. The mass ratio of the at least one catalyst pre-bed to the at least one main catalyst bed is between 1:2 and 2.5:1, preferably between 1:1.5 and 2.5:1, more preferably between 1:1 and 2.5:1, most preferably between 1:1 and 2:1.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: October 29, 2019
    Assignee: Borealis AG
    Inventors: Eberhard Ernst, Mariana Stoyanova, Evgeny Kondratenko, David Linke
  • Publication number: 20190169093
    Abstract: The present invention relates to the use of magnesium oxide (MgO) as catalyst for isomerisation of olefins with defined physical properties, a catalyst for olefin metathesis comprising said MgO and a process for olefin metathesis using said catalyst.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Inventors: Mariana Stoyanova, Evgeny Kondratenko, David Linke, Eberhard Ernst
  • Patent number: 10202319
    Abstract: The present invention relates to a process for obtaining an olefin by metathesis including the steps of i) feeding at least one stream with at least one olefin as starting material to at least one first reactor with at least one pre-bed having at least one compound selected from the group of alkaline earth oxides and ii) feeding the stream leaving the at least one first reactor to at least one second reactor downstream to the at least one first reactor including at least one main bed having a) at least one first catalyst component and b) at least one second catalyst component. The first and second catalyst are physically mixed with each other. The operational temperature of the at least one first reactor is lower than the operational temperature of the at least one second reactor.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: February 12, 2019
    Assignee: Borealis AG
    Inventors: Eberhard Ernst, Mariana Stoyanova, Evgeny Kondratenko, David Linke
  • Patent number: 10112877
    Abstract: A process for obtaining an olefin by metathesis including at least two reaction pathways. In at least one first reaction pathway at least one stream with at least one olefin as starting material is fed to at least one first pre-bed reactor with at least one pre-bed having at least one compound selected from the group of alkaline earth metal oxides. The stream leaving the at least one first pre-bed reactor is subsequently fed to at least one main catalyst bed reactor downstream of the at least one first pre-bed reactor including at least one main catalyst bed with at least one first catalyst component comprising a metathesis catalyst, and at least one second catalyst component comprising a catalyst for double bond isomerization, whereby the first and second catalyst are physically mixed with each other.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 30, 2018
    Assignee: Borealis AG
    Inventors: Mariana Stoyanova, Evgeny Kondratenko, David Linke, Eberhard Ernst, Rene Dicke
  • Publication number: 20180281063
    Abstract: The present invention relates to a punching tool of a sintering press, comprising at least one lower punch and an upper punch, a first punch of the upper punch and/or lower punch having a top piece that is asymmetric with respect to an axial axis of the punch press. The first punch has a geometry which widens from the top piece towards a base and is also asymmetric with respect to the axial axis of the punch press. The invention further relates to a method for pressing at least one powdery material to a green body in a sintering press.
    Type: Application
    Filed: September 16, 2016
    Publication date: October 4, 2018
    Inventors: Rainer Schmitt, Robert Maassen, Eberhard Ernst, Hasim Tekines
  • Publication number: 20180257137
    Abstract: The invention relates to a sintering press which comprises at least one upper punch and a lower punch, a powder reservoir for filling a female die of the sintering press with at least one powder material that can be sintered, and a female die for producing a green body using the powder material from the powder reservoir. A first punch of the upper punches and/or lower punches has a punch top which is off-center and asymmetric with respect to an axial axis of the sintering press and which can be moved in the female die along a female die outer wall and/or along an adjacent punch without being guided inside the female die. The first punch is asymmetric in shape between the punch top and the base, which shape at least reduces an axial tilting of the punch and a lateral drag of the punch top on an adjacent outer surface in the female die, in particular prevents such tilting and dragging, during insertion and extraction therefrom during a pressing step in the production of the green body.
    Type: Application
    Filed: September 16, 2016
    Publication date: September 13, 2018
    Inventors: Rainer Schmitt, Robert Maassen, Eberhard Ernst, Hasim Tekines
  • Publication number: 20180236547
    Abstract: The invention relates to a powder press, comprising a tool structure, which has a conical substructure having lower rams nested in each other, wherein each lower ram has a longitudinal extent, in particular a cylindrical longitudinal extent, which is guided in a die, wherein, in the case of at least two longitudinal extents of the lower rams, each longitudinal extent is adjoined by a conical enlargement, wherein the conical enlargements can be guided in each other, wherein the region of the conical enlargement has an inner wall and an outer wall, which expand conically and which are preferably longer than the longitudinal extent. The invention further relates to a method for operating a powder press and to a computer program product having computer program code means that can be executed on a computer system in order to perform the method.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 23, 2018
    Inventors: Rainer Schmitt, Eberhard Ernst
  • Patent number: 10029959
    Abstract: The present invention relates to a process for obtaining an olefin by metathesis comprising feeding at least one stream comprising at least one olefin as starting material to at least one reactor comprising at least one main catalyst bed comprising a) at least one first catalyst component comprising a metathesis catalyst, and b) at least one second catalyst component comprising a catalyst for double bond isomerization, whereby the first and second catalyst are physically mixed with each other, wherein the at least one stream comprising at least one olefin as starting material is co-fed with hydrogen gas in a concentration range between 0.01 Vol % and 0.2 Vol % in respect to the total gas amount in the stream, and the metathesis process is conducted in the at least one reactor at a pressure between 0.1 MPa and 3.0 MPa and at a temperature between 250° C. and 300° C.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: July 24, 2018
    Assignee: Borealis AG
    Inventors: Mariana Stoyanova, Evgeny Kondratenko, David Linke, Eberhard Ernst, Rene Dicke