Patents by Inventor Peter Niegerl

Peter Niegerl 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 blowing a film of thermoplastic synthetic resin
    Patent number: 5322431
    Abstract: A device for feeding film-blowing air into the plastic tube and film bubble of a blowing head is connected to the film-blowing head and includes between the foot side and head side outlets thereof, with at least one intake device and at least one further outlet in spaced relationship and with matched flows to stabilize the tube and the neck formed between the tube and the expanding bubble.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: June 21, 1994
    Assignee: Reiffenhauser GmbH & Co. Maschinenfabrik
    Inventors: Wilhelm Kahlen, Peter Niegerl