Patents by Inventor Wilhelm Kelller

Wilhelm Kelller 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).

  • Dispensing device comprising a stopper and locking ring with bayonet coupling means
    Publication number: 20070090079
    Abstract: In the dispensing device, preferably a double cartridge (1) having a stopper and a locking ring provided with bayonet connecting means, the stopper (7), the external surfaces of the cartridge outlets (4, 5), and the wall interior of the locking ring (6,) comprise mutually cooperating means (17, 26; 18, 27) for pressing the stopper into the outlets or pulling it out from the outlets as the locking ring is rotated. On one hand, this allows to obtain a tight closure, and on the other hand, it is very simple in this manner to pull out the tightly fitting stopper.
    Type: Application
    Filed: August 20, 2004
    Publication date: April 26, 2007
    Inventor: Wilhelm Kelller