Patents by Inventor Daniel Haeffelin

Daniel Haeffelin 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: 10730248
    Abstract: A method for producing a component from a fiber-composite material, wherein a plurality of fiber-tape pieces, which each comprise a thermoplastic fiber-tape piece matrix with fiber-tape-piece fibers embedded therein, are provided, the fiber-tape pieces are picked up in the solid state and arranged so as to form a fiber-tape pattern, a backing layer, which comprises a thermoplastic backing-layer matrix with backing-layer fibers embedded therein, is provided and heated such that the backing-layer matrix softens or melts, a preform is formed from the backing layer and the fiber-tape pattern in that the fiber-tape pattern is applied in the solid state to the heated backing layer and is heated thereby so that the fiber-tape-piece matrices soften or melt such that the preform is in a deformable state in which both the backing-layer matrix and the fiber-tape-piece matrices have been softened or melted, the preform in the deformable state is deformed.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 4, 2020
    Assignee: BOGE ELASTMETALL GMBH
    Inventors: Daniel Haeffelin, Olaf Beutler, Burkhard Tiemann, Felix Kamotzke
  • Publication number: 20200094489
    Abstract: A method for producing a component from a fiber-composite material, wherein a plurality of fiber-tape pieces, which each comprise a thermoplastic fiber-tape piece matrix with fiber-tape-piece fibers embedded therein, are provided, the fiber-tape pieces are picked up in the solid state and arranged so as to form a fiber-tape pattern, a backing layer, which comprises a thermoplastic backing-layer matrix with backing-layer fibers embedded therein, is provided and heated such that the backing-layer matrix softens or melts, a preform is formed from the backing layer and the fiber-tape pattern in that the fiber-tape pattern is applied in the solid state to the heated backing layer and is heated thereby so that the fiber-tape-piece matrices soften or melt such that the preform is in a deformable state in which both the backing-layer matrix and the fiber-tape-piece matrices have been softened or melted, the preform in the deformable state is deformed.
    Type: Application
    Filed: May 23, 2017
    Publication date: March 26, 2020
    Inventors: Daniel Haeffelin, Olaf Beutler, Burkhard Tiemann, Felix Kamotzke
  • Patent number: 9770874
    Abstract: A method for producing a component from a fiber composite. A number of layers of a dry fibrous material are stacked to form a pile, the pile is covered by a thermoplastic film in a gas-tight manner, the inner space occupied by the pile within the film is pumped dry and the layers are fixed to form a preform that is stable during transport, the preform is reshaped, a liquid thermosetting material is inserted into the inner space by infiltration of the fibrous material, and the preform is hardened with the infiltrated fibrous material to form the finished component, the film binding permanently as the surface. The invention also relates to a component produced in such a way, and to a corresponding preform. The production method provides a process-integrated surface finishing of the fiber composite. The surface properties are created by the bound thermoplastic film.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: September 26, 2017
    Assignee: TECHNISCHE UNIVERSITÄT MÜNCHEN
    Inventors: Daniel Häffelin, Swen Zaremba
  • Publication number: 20140193625
    Abstract: A process for the production of a component (1) made of a fiber composite material, and also a component (1) produced in this way, are stated, where a foil composite (7) with a thermoplastic outer foil (6) and with a thermoplastic inner foil (5) is produced, where the modulus of elasticity (E) of the inner foil (5) within a temperature range is smaller than the modulus of elasticity (E) of the outer foil (6), the inner foil (5) of the foil composite (7) is bonded to a molding (4) comprising a fiber material (2) and comprising a thermoset (3), the molding (4) is hardened, and the foil composite (7) is subjected to a heat treatment in the temperature range within which the modulus of elasticity (E) of the inner foil (5) is smaller than the modulus of elasticity (E) of the outer foil (6), where the outer foil (6) undergoes stress relaxation.
    Type: Application
    Filed: July 12, 2012
    Publication date: July 10, 2014
    Applicant: TECHNISCHE UNIVERSITÄT MÜNCHEN
    Inventors: Daniel Häffelin, Swen Zaremba, Bernd Zacherle
  • Publication number: 20130157057
    Abstract: A method for producing a component from a fibre composite. A number of layers of a dry fibrous material are stacked to form a pile, the pile is covered by a thermoplastic film in a gas-tight manner, the inner space occupied by the pile within the film is pumped dry and the layers are fixed to form a preform that is stable during transport, the preform is reshaped, a liquid thermosetting material is inserted into the inner space by infiltration of the fibrous material, and the preform is hardened with the infiltrated fibrous material to form the finished component, the film binding permanently as the surface. The invention also relates to a component produced in such a way, and to a corresponding preform. The production method provides a process-integrated surface finishing of the fibre composite. The surface properties are created by the bound thermoplastic film.
    Type: Application
    Filed: July 13, 2011
    Publication date: June 20, 2013
    Applicant: TECHNISCHE UNIVERSITÄT MÜNCHEN
    Inventors: Daniel Häffelin, Swen Zaremba