Patents by Inventor Antonius Friedrich Appelhans

Antonius Friedrich Appelhans 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).

  • Method and apparatus for the manufacture of collar-inserts and base-plus seal-inserts for performance of this method
    Patent number: 4026749
    Abstract: A method and apparatus for the manufacture of collar inserts made of a base insert and a seal insert, by which the base insert and the seal insert are introduced in the sealing press lying aligned on each other. The base insert and the seal insert are provided with at least two truing openings, respectively, corresponding in arrangement to truing mandrels on a support, the latter being insertable in a sealing press with the base insert and the seal insert disposed on each other aligned with the truing mandrels inserted in the respective truing openings of the inserts.
    Type: Grant
    Filed: February 5, 1976
    Date of Patent: May 31, 1977
    Assignee: Nino Aktiengesellschaft
    Inventors: Antonius Friedrich Appelhans, Felix Franz Robers, Ulrich Stemick