Patents Assigned to Firma Alcoa Deutschland GmbH
  • Childproof locking cap
    Patent number: 4410098
    Abstract: An assembly for a locking cap for containers with a threaded neck, having an inner cap, an intermediate cap, and an outer cap. The inner cap 1 has on its upper edge a circumferential knurl. The intermediate cap has on its inner face another knurl and on its top face. The outer cap has on its inner bottom face downwardly pointing projections 15. The knurl of the intermediate cap engages in the circumferential knurl of the inner cap. A container with this assembly can only be opened if pressure is applied to the top face of the outer cap.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: October 18, 1983
    Assignee: Firma Alcoa Deutschland GmbH
    Inventors: Hans-Dieter Dubs, Gunter Spatz, Carlos-Enrique Brandes