Patents by Inventor Yvonne Frey

Yvonne Frey 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: 5076169
    Abstract: An incendiary fragmentation particle consists of a metal carrier body with ribs and a polymer incendiary mass containing a pyrophoric metal formed about the carrier body. The fragmentation particle carrier body may be formed from steel wire which is subsequently coated with the curing agent of a two-component epoxy resin and then, at raised temperature and high pressure, joined with the incendiary mass of pyrophoric metal and epoxy resin. The incendiary fragmentation particles may be used in active components of ammunition bodies in which they are preferably embedded in a matrix of epoxy resin.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: December 31, 1991
    Assignee: Schweizerische Eidgenossenschaft Vertreten Durch Die Eidg Munitionsfabrik Thun Der Gruppe Fur Rustungsdienste
    Inventors: Rene Jeanquartier, Yvonne Frey, Roland Hess
  • Patent number: 4898098
    Abstract: For generation of smoke screens for civilian and military applications, briquetted, combustible masses are used, which, by means of scattering charges, are spread in a buckshot-like manner. Smoke charges serve mostly toxic substances which, at least when failing to burn or when only partly burning, constitute an environmental hazard.According to the invention, there is provided a device consisting of nontoxic, hygroscopic smoke charges fully encapsulated in a moisture-impervious ignition layer. An ammunition body comprises smoke charges of differing sizes and geometries, and facilitates the ground-covering laying of smoke screens over large target areas.A preferred manufacturing method for the smoke charges and the ignition layer is described.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: February 6, 1990
    Assignee: Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrick Thun der Gruppe fUr RUstungsdienste
    Inventors: Yvonne Frey, Jorg Kutzli, Walter Rauber, Hans Schmocker, Markus Tobler