Patents by Inventor Holger Bose

Holger Bose 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: 9478727
    Abstract: A dielectric elastomer has a film that contains a fluorinated silicone elastomer and has two faces. A coating of a stretchable electrode material is applied to each one of the two faces. The fluorinated silicone elastomer has a modulus of elasticity of maximally 450 kPa. The fluorinated silicone elastomer is a three-dimensionally crosslinked, fluorinated, alkyl group-containing polysiloxane in combination with a fluorinated silicone oil. Alternatively, or in addition, the fluorinated silicone elastomer is a three-dimensional wide-mesh crosslinked, fluorinated, alkyl-group containing polysiloxane whose wide mesh property has been effected by a chain length extension by addition of a chain-shaped silicone molecule containing two Si—H groups to an alkenyl group-containing polysiloxane molecule.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 25, 2016
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Holger Böse, Detlev Uhl, Raman Rabindranath
  • Publication number: 20150183016
    Abstract: A forming method includes using at least one forming tool to form a material of a workpiece and using a lubricant between the, material and the at least one forming tool. The lubricant has a viscosity that is modifiable by applying or varying a field.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 2, 2015
    Inventors: Holger Böse, Christoph Janssen, Johannes Ehrlich, Piet Wölcken
  • Patent number: 8959968
    Abstract: A forming method includes using at least one forming tool to form a material of a workpiece and using a lubricant between the material and the at least one forming tool. The lubricant has a viscosity that is modifiable by applying or varying a field.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: February 24, 2015
    Assignee: EADS Deutschland GmbH
    Inventors: Holger Böse, Christoph Janssen, Johannes Ehrlich, Piet Wölcken
  • Patent number: 8318041
    Abstract: The present invention relates to a stable sediment dispersion which can be used above all as electrorheological (ERF) and/or magnetorheological fluid (MRF), a method for production thereof and also use thereof.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: November 27, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Bose
  • Patent number: 8205728
    Abstract: The present invention discloses a magnetorheological force transmission device which comprises at least two solid body parts adapted to be moved in a substantially translational manner against each other, and an MRF gap, which is at least partially fillable and/or filled with a magnetorheological material 2MRF, the MRF gap being arranged at least partially inside one of or both of the two parts and/or being arranged at least partially in-between the two parts, and which is characterized in that the magnetic circuit system of the magnetorheological force transmission device being designed and/or disposed to generate a magnetic flux within at least part of the MRF gap comprises at least one electromagnet, at least one permanent magnet and at least one magnetic-field-balancing insert and/or magnetic isolator.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: June 26, 2012
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung E.V.
    Inventors: Holger Böse, Johannes Ehrlich, Patrick Meneroud, Gregory Magnac
  • Publication number: 20120085613
    Abstract: The present invention relates to a magnetorheological torque transmission device comprising two device parts separated by at least one transmission gap for transmitting torque, said gap being fillable and/or filled with a magnetorheological material, rotating relative to each other about an axis of rotation, wherein the magnetic circuit system of the torque transmission device comprises at least one permanent magnet having variable magnetization in addition to at least one electromagnet for generating the magnetic flux in at least one part of the transmission gap, wherein the electromagnet and the permanent magnet are designed and disposed such that the magnetization of the permanent magnet can be adjusted by changing the coil current of the electromagnet. The present invention further relates to a correspondingly designed force transmission device.
    Type: Application
    Filed: February 2, 2010
    Publication date: April 12, 2012
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung E.V.
    Inventors: Holger Böse, Johannes Ehrlich
  • Patent number: 8123971
    Abstract: The invention relates to composites made of an elastic carrier medium comprising polynorbornene (PNR) and magnetisable particles which are polarized reversibly in a magnetic field. Thus the mechanical properties, such as e.g. storage modulus G? (describes the elastic behavior or the energy storage) and loss modulus G? (describes the viscous behavior or the energy dissipation), of such elastomer composites can be increased rapidly and reversibly within wide limits (up to approx. two orders of magnitude) as a function of an external magnetic field. Wide-ranging application possibilities are produced herefrom, e.g. for adaptive damping systems, in which the damping force can be adjusted via the strength of the magnetic field.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: February 28, 2012
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Holger Böse, Rene' Röder, Nikolaus Rennar
  • Publication number: 20110113845
    Abstract: A forming method includes using at least one forming tool to form a material of a workpiece and using a lubricant between the material and the at least one forming tool. The lubricant has a viscosity that is modifiable by applying or varying a field.
    Type: Application
    Filed: June 4, 2008
    Publication date: May 19, 2011
    Applicant: EADS DEUTSCHLAND GMBH
    Inventors: Holger Böse, Christoph Janssen, Johannes Ehrlich, Piet Wölcken
  • Patent number: 7897060
    Abstract: The invention relates to magnetorheological materials comprising at least one non-magnetisable carrier medium and magnetisable particles contained therein, at least two magnetisable particles fractions being contained as particles and these being formed from non-spherical particles and from spherical particles.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: March 1, 2011
    Assignee: Fraunhofer-Gesselschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Holger Böse, Alexandra-Maria Trendler
  • Publication number: 20100314572
    Abstract: The present invention relates to composites comprising an elastic and/or thermoplastic-elastic carrier medium and hard magnetic particles which are polarised in a magnetic field, a magnetisation remaining after switching off the magnetic field.
    Type: Application
    Filed: June 18, 2008
    Publication date: December 16, 2010
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Holger Bose, Andreas Hesler
  • Publication number: 20100307877
    Abstract: Present invention relates to a device for reducing vibrations of a vibrating object as well as a method for reducing vibrations, wherein the perturbing vibrations are reduced drastically by induction of counter-forces. In general, vibrations of equal frequency (counter-vibration) as the perturbing vibration are generated. The force generated by the counter-vibration acts onto the vibrating object, whose amplitude of vibration is to be reduced. The phasing of the counter-vibration is antipodal to the vibration to be reduced, preferably the force of the generated counter-vibration is greater than the force being necessary for compensation of the perturbing vibration. The transfer of the force of the counter-vibration onto the vibrating object is affected by means of a magnetorheological or electrorheological material, whereby the absolute value of the transmitted force is adjusted by the magnitude of an applied magnetical or electric field.
    Type: Application
    Filed: March 2, 2009
    Publication date: December 9, 2010
    Applicant: Fraunhofer-Gesellschaft zur forderung der Angewandten Forschung e.V
    Inventors: Holger Bose, Thomas Gerlach, Johannes Ehrlich, Angelo Merlo, Ippolito Massimo
  • Publication number: 20100193304
    Abstract: The present invention relates to a damping device having a first control element with a first surface (O1) and a second control element with a second surface (O2), the two control elements being moveable relative to each other with their two surfaces, a spatial region (intermediate space Z) which is filled at least partially with a magnetorheological and/or electrorheological material (M) and is disposed between the first and the second surface, and a field producer (4) with which a magnetic and/or electrical field can be produced in at least a partial region of the material-filled part of the intermediate space, and also a housing (1) which has two chambers (K1, K2) and in which a piston unit (2) which is moveable relative to the housing and a closing unit (3) which is moveable relative to the piston unit are disposed, the piston unit and the closing unit forming a throughflow opening (D) connecting the two chambers, through which a fluid (F) can be displaced between the two chambers by means of a relative m
    Type: Application
    Filed: April 11, 2008
    Publication date: August 5, 2010
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.v.
    Inventors: Holger Böse, Thomas Gerlach, Jörn Probst
  • Publication number: 20100162776
    Abstract: The present invention discloses a locking device having a control unit with a first control element with a first surface (O1) and a second control element with a second surface (O2), the two control elements being moveable relative to each other with their two surfaces, a spatial region (intermediate space Z) which is filled at least partially with a magnetorheological and/or electrorheological material (M) and is disposed between the first and the second surface, and a field producer (4) with which a magnetic and/or electrical field can be produced in at least a partial region of the material-filled part of the intermediate space, a locking unit with a piston unit (2) and a locking system (3) with which the piston unit can be locked, the two control elements being able to be coupled to each other by the field produced in the intermediate space and the locking state of locking system and piston unit being able to be changed by means of this coupling.
    Type: Application
    Filed: April 11, 2008
    Publication date: July 1, 2010
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.v.
    Inventors: Holger Böse, Thomas Gerlach
  • Patent number: 7708901
    Abstract: The invention relates to magnetorheological materials comprising at least one non-magnetisable carrier medium and magnetisable particles contained therein, in addition a combination of magnetic and non-magnetic inorganic materials and/or composite particles thereof being contained.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: May 4, 2010
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Holger Böse, Alexandra-Maria Trendler
  • Patent number: 7608197
    Abstract: The present invention relates to magnetorheological elastomers comprising at least one non-magnetizable elastomeric carrier medium and magnetizable particles contained therein and also to the use thereof. In the case of MREs of this type, the mechanical properties, such as the rigidity modulus, can be changed reversibly by an applied magnetic field.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: October 27, 2009
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Holger Böse, Rene Röder
  • Publication number: 20090250652
    Abstract: The present invention relates to a stable sediment dispersion which can be used above all as electrorheological (ERF) and/or magnetorheological fluid (MRF), a method for production thereof and also use thereof.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 8, 2009
    Applicant: FRAUNHOFER-GESELLSCHAFT zur Forderung der Angewandten Forschung e.V
    Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Böse
  • Publication number: 20090173908
    Abstract: The invention relates to composites made of an elastic carrier medium comprising polynorbornene (PNR) and magnetisable particles which are polarised reversibly in a magnetic field. Thus the mechanical properties, such as e.g. storage modulus G? (describes the elastic behaviour or the energy storage) and loss modulus G? (describes the viscous behaviour or the energy dissipation), of such elastomer composites can be increased rapidly and reversibly within wide limits (up to approx. two orders of magnitude) as a function of an external magnetic field. Wide-ranging application possibilities are produced herefrom, e.g. for adaptive damping systems, in which the damping force can be adjusted via the strength of the magnetic field.
    Type: Application
    Filed: April 10, 2007
    Publication date: July 9, 2009
    Applicant: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Holger Böse, Rene' Röder, Nikolaus Rennar
  • Publication number: 20090133976
    Abstract: The present invention discloses a magnetorheological force transmission device which comprises at least two solid body parts 1a, 1b adapted to be moved in a substantially translational manner against each other, and an MRF gap 2, which is at least partially fillable and/or filled with a magnetorheological material 2MRF, the MRF gap 2 being arranged at least partially inside one of or both of the two parts and/or being arranged at least partially in-between the two parts, and which is characterized in that the magnetic circuit system of the magnetorheological force transmission device being designed and/or disposed to generate a magnetic flux within at least part of the MRF gap comprises at least one electromagnet 3, at least one permanent magnet 4 and at least one magnetic-field-balancing insert 5, 5a, 5b and/or magnetic isolator 7, 7a, 7b.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 28, 2009
    Applicant: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Holger Bose, Johannes Ehrlich, Patrick Meneroud, Gregory Magnac
  • Publication number: 20090039309
    Abstract: Magnetorheological elastomer composites comprising at least one thermoplastic elastomer which forms a thermoplastic matrix and magnetisable particles which are contained therein, the elastomer matrix containing at least 10% by weight of plasticiser, relative to the thermoplastic elastomer.
    Type: Application
    Filed: July 13, 2006
    Publication date: February 12, 2009
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Holger BOSE, Rene Roder
  • Publication number: 20080318045
    Abstract: The present invention relates to magnetorheological elastomers comprising at least one non-magnetisable elastomeric carrier medium and magnetisable particles contained therein and also to the use thereof. In the case of MREs of this type, the mechanical properties, such as the rigidity modulus, can be changed reversibly by an applied magnetic field.
    Type: Application
    Filed: August 25, 2005
    Publication date: December 25, 2008
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Holger Bose, Rene Roder