Patents by Inventor Hans Demandt

Hans Demandt 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: 7431962
    Abstract: The invention relates to a method for manufacturing a multi-layered moulded synthetic part comprising a preformed elastomeric moulded skin (5), a moulded carrier (8) of a thermoplastic material and optionally an intermediate foam layer (6). In this method, the elastomeric skin (5) is moulded in a first step and the thermoplastic material for the carrier (8) is subsequently moulded in molten state to the back of said moulded skin (5). According to the invention, the moulded skin is made of a thermosetting synthetic material. Compared to a thermoplastic skin, such a thermosetting skin is less subjected to visible defects, in particular in case it has been provided with a superficial texture such as a leather grain, when the thermoplastic carrier is moulded thereto. Moulding of the thermoplastic carrier can be done by an injection moulding, an injection pressure moulding or a low pressure moulding technique.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: October 7, 2008
    Assignee: Recticel Automobilsysteme GmbH
    Inventors: Hugo De Winter, Yvan Vanluchene, Hans Demandt, Ivo Deblier, Roger Hackwell
  • Publication number: 20050123738
    Abstract: The invention relates to a method for manufacturing a multi-layered moulded synthetic part comprising a preformed elastomeric moulded skin (5), a moulded carrier (8) of a thermoplastic material and optionally an intermediate foam layer (6). In this method, the elastomeric skin (5) is moulded in a first step and the thermoplastic material for the carrier (8) is subsequently moulded in molten state to the back of said moulded skin (5). According to the invention, the moulded skin is made of a thermosetting synthetic material. Compared to a thermoplastic skin, such a thermosetting skin is less subjected to visible defects, in particular in case it has been provided with a superficial texture such as a leather grain, when the thermoplastic carrier is moulded thereto. Moulding of the thermoplastic carrier can be done by an injection moulding, an injection pressure moulding or a low pressure moulding technique.
    Type: Application
    Filed: January 11, 2005
    Publication date: June 9, 2005
    Inventors: Hugo De Winter, Yvan Vanluchene, Hans Demandt, Ivo Deblier, Roger Hackwell
  • Patent number: 6849218
    Abstract: The invention relates to a method for manufacturing a multi-layered molded synthetic part comprising a preformed elastomeric molded skin (5), a molded carrier (8) of a thermoplastic material and optionally an intermediate foam layer (6). In this method, the elastomeric skin (5) is molded in a first step and the thermoplastic material for the carrier (8) is subsequently molded in molten state to the back of said molded skin (5). According to the invention, the molded skin is made of a thermosetting synthetic material. Compared to a thermoplastic skin, such a thermosetting skin is less subjected to visible defects, in particular in case it has been provided with a superficial texture such as a leather grain, when the thermoplastic carrier is molded thereto. Molding of the thermoplastic carrier can be done by an injection molding, an injection pressure molding or a low pressure molding technique.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: February 1, 2005
    Assignee: Recticel
    Inventors: Hugo De Winter, Yvan Vanluchene, Hans Demandt, Ivo Deblier, Roger Hackwell