Patents by Inventor Angela Stenger

Angela Stenger 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: 6715645
    Abstract: The invention relates to a mixing capsule, especially for producing dental materials. The inventive capsule is provided with a cartridge which is closed on one end thereof by means of a piston. A hemispherical cavity is configured in the piston. Said cavity forms an additional chamber and is closed in relation to the main chamber of the cartridge by means of a separating device. A body that is present in the main chamber in the initial state serves for supporting the mixing process and for chopping through the separating device at the beginning of the mixing process in such a way that the main chamber and the additional chamber form a coherent mixing chamber. The body enters the hemispherical additional chamber and acts as a displacing body at the end of the output process. The mixing capsule is provided with a coding.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: April 6, 2004
    Assignee: 3M ESPE AG
    Inventors: Marc Peuker, Michael Sick, Klaus-Peter Stefan, Gabriele Hager, Angela Stenger, Gunther Eckhardt
  • Publication number: 20030136799
    Abstract: The invention relates to a mixing capsule, especially for producing dental materials. The inventive capsule is provided with a cartridge (10) which is closed on one end thereof by means of a piston (12). A hemispherical cavity is configured in the piston (12). Said cavity forms an additional chamber and is closed in relation to the main chamber (18) of the cartridge (10) by means of a separating device (16). A body (20) that is present in the main chamber (18) in the initial state serves for supporting the mixing process and for chopping through the separating device (16) at the beginning of the mixing process in such a way that the main chamber (18) and the additional chamber (17) form a coherent mixing chamber. The body (20) enters the herispherical additional chamber (17) and acts as a displacing body at the end of the output process. The mixing capsule is provided with a coding.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 24, 2003
    Inventors: Mark Peuker, Michael Sick, Klaus-Peter Stefan, Gabriele Hager, Angela Stenger, Gunther Eckhardt
  • Patent number: 6543611
    Abstract: A mixer capsule, especially for the production of dental materials, comprising a cartridge (10) that is closed on one end by a piston (12). The piston has a hemispherical recess (12) that forms a chamber and is closed off from the main chamber (18) of the cartridge (10) by means of a separating device (16). A body (20) that is provided in the initial state in the main chamber (18) is used to facilitate the mixing process and to penetrate the separating device (16) at the beginning of the process, whereby the main chamber (18) and the subsidiary chamber (17) form a single mixing area. At the end of the output process, the body (20) enters the hemispherical subsidiary chamber (17) and acts as a displacer.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: April 8, 2003
    Assignee: 3M ESPE AG
    Inventors: Marc Peuker, Angela Stenger, Martin Hartung, Gabriele Hager