Patents by Inventor Dieter Duschek

Dieter Duschek 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: 5125921
    Abstract: A closure arrangement for pharmaceutical bottles contains a stopper closing the bottle mouth, and a closure cap mounted over the bottle mouth and a closure cap. The stopper is adapted to be pierced with a hollow needle for extracting a medicament located in the bottle. The closure cap is provided with a tear-off disc which is located above the stopper and is removable upon opening the closure. The tear-off disc is produced from plastic material in one piece with the closure cap and is retained thereat by means of a weakening line. Between the tear-off disc and the stopper there is provided a spacer which does not extend beyond the outline of the tear-off disc. The spacer is formed in one piece with the tear-off disc and/or with the stopper. The closure cap can be one-handedly pressed in the direction toward the bottle, whereby the tear-off disc is separated from the closure cap and the stopper is free for insertion of a hollow needle.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: June 30, 1992
    Assignee: Wez Kunststoffwerk AG
    Inventor: Dieter Duschek