Patents by Inventor Gerhard Entholzer

Gerhard Entholzer 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).

  • Prepregs for use in building lay-ups of composite materials
    Patent number: 9096019
    Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: August 4, 2015
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • PREPREGS FOR USE IN BUILDING LAY-UPS OF COMPOSITE MATERIALS
    Publication number: 20130231018
    Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicant: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • PREPREGS FOR USE IN BUILDING LAY-UPS OF COMPOSITE MATERIALS AND PROCESSES FOR THEIR PREPARATION
    Publication number: 20100170620
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Prepregs for use in building lay-ups of composite materials and processes for their preparation
    Patent number: 7709404
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: May 4, 2010
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Prepregs for use in building lay-ups of composite materials and processes for their preparation
    Publication number: 20050255766
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Application
    Filed: May 5, 2005
    Publication date: November 17, 2005
    Inventors: Stephan Kruger, Gerhard Entholzer