Patents by Inventor Hanspeter Andres

Hanspeter Andres 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: 8353994
    Abstract: The propulsion system for the acceleration of projectiles is based on nitrocellulose and contains a crystalline energy carrier on a nitramine base and an inert plasticizing additive. The nitramine compound contains a structural element of the general chemical structure formula R—N—NO2, where R is a residual. The nitramine compound is present in a concentration in the range from 1 to 35% by weight, in particular in the range from 5 to 25% by weight. The nitramine compound is preferably RDX. The inert plasticizing additive is a water-insoluble polyoxo compound, if necessary in combination with a substance containing carboxyl groups. In layers near the surface an increased concentration can be present. The inert plasticizing additive is present in a concentration of 1 to 5% by weight.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: January 15, 2013
    Assignee: Nitrochemie Wimmis AG
    Inventors: Ulrich Schaedeli, Hanspeter Andres, Kurt Ryf, Dominik Antenen, Beat Vogelsanger
  • Publication number: 20120138201
    Abstract: The propulsion system for the acceleration of projectiles is based on nitrocellulose and contains a crystalline energy carrier on a nitramine base and an inert plasticising additive. The nitramine compound contains a structural element of the general chemical structure formula R—N—NO2, where R is a residual. The nitramine compound is present in a concentration in the range from 1 to 35% by weight, in particular in the range from 5 to 25% by weight. The nitramine compound is preferably RDX. The inert plasticising additive is a water-insoluble polyoxo compound, if necessary in combination with a substance containing carboxyl groups. In layers near the surface an increased concentration can be present. The inert plasticising additive is present in a concentration of 1 to 5% by weight.
    Type: Application
    Filed: May 17, 2007
    Publication date: June 7, 2012
    Applicant: Nitrochemie Wimmis AG
    Inventors: Ulrich Schaedeli, Hanspeter Andres, Kurt Ryf, Dominik Antenen, Beat Vogelsanger