Patents by Inventor Ralf Petell

Ralf Petell 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).

  • Patent number: 4749010
    Abstract: The invention relates to a tapping tube intended for the filling of container-like receptacles, such as bottles, with a liquid, said tapping tube preferably communicating with a metering pump, whereby the liquid in question is intended to flow through the tapping tube and to be interrupted during removal and replacement of the receptacles in question. An arrangement for a tapping tube of this kind is made available in which above all dribbling and dripping can be prevented, especially in conjunction with the removal and replacement of the receptacles. There is connected to the tapping tube (1) a suction channel (14) which discharges in the vicinity of its lower end and which is so arranged as to be actuated in such a way as to provide a suction effect at least for the duration of the aforementioned interruption in the flow of liquid through the tapping tube.
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: June 7, 1988
    Inventor: Ralf Petell