Patents by Inventor Stewart Iain

Stewart Iain 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).

  • Device for the packaging of powder, granulates and lump, pasty and liquid materials to be packaged by means of a tubular film
    Patent number: 4516379
    Abstract: A device for the packaging of powder, granulates, slurries and viscous materials in a tubular film which is formed from an endless web of film by a forming shoulder into a tube which is filled by means of a filling pipe with the material to be packaged and subdivided at intervals by transverse closures which are formed by a clamp which is moved against the tubular film transverse to the direction of film movement by two cooperating gathering irons which are moved against the tubular film from opposite sides, to gather the tubular film and therby form the transverse closure.
    Type: Grant
    Filed: July 7, 1982
    Date of Patent: May 14, 1985
    Assignee: Maschinenfabrik Fr. Niepmann GmbH & Co.
    Inventor: Stewart Iain