Patents by Inventor Siegfried Dold, deceased

Siegfried Dold, deceased 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).

  • Safety closure for bottles
    Patent number: 4081097
    Abstract: A safety closure for bottles with a thread on the neck and a bead arranged thereunder, including a screw cap and a safety ring fastened thereon with safety fracture stays. At least two teeth are arranged offset relative to one another by a circumferential angle on the neck of the bottle on the bead. At least two break-open pins which are offset relative one another by a circumferential angle are joined on the lower edge of the screw cap. The safety ring is provided with at least one safety breaking point.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: March 28, 1978
    Assignee: Underberg Gesellschaft mit beschrankter Haftung
    Inventor: Siegfried Dold, deceased