Patents by Inventor Hans D. Ott

Hans D. Ott 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 cooling a melt strip of thermoplastic synthetic resin and process
    Patent number: 4908165
    Abstract: An apparatus and method for cooling a melt strip from a wide-slot die includes a cooling roller driven at a predetermined angular velocity and juxtaposed with a corona-discharge electrode in the form of a rotation symmetrical rigid bar which is rotated about its axis at an angular velocity much greater than that of the cooling roller. The rotating corona-discharge electrode can be received in a nonrotatable insulating chamber having air inlets on a side opposite a slot-shaped outlet training ionized air onto the melt strip.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: March 13, 1990
    Assignee: Reifenhauser GmbH & Co., Maschinenfabrik
    Inventors: Walter Kramer, Klemens Krumm, Hans D. Ott