Patents by Inventor Bruno Winzeler

Bruno Winzeler 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).

  • Apparatus for forming gusset pleats in tubular bags
    Patent number: 3955338
    Abstract: In a continuously operating packaging machine for packaging items at uniform intervals in a tube of sealable packaging material, the narrow sides of the tube are folded inwardly in the region between successive items, where a transverse seam is subsequently formed, by blowing a jet of gaseous medium against the center line of each narrow side, from two nozzles, in each such region.
    Type: Grant
    Filed: January 22, 1975
    Date of Patent: May 11, 1976
    Assignee: SIG Schweizerische Industrie-Gesellschaft
    Inventors: Bruno Winzeler, Roland Watzka