Patents by Inventor Horst Parbel

Horst Parbel 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: 5944070
    Abstract: An emptying device for bulk bags having an inner and outer sack in which disturbances during emptying and contact with the bulk material are avoided. The device includes a holding device for the bulk bag, a double tube device arranged centrally beneath the holding device and having an inner tube, an outer tube arranged around the inner tube with an outlet fitted to its lower edge, and a closing ring which can be raised and lowered for closing the upper end of the annular gap formed by the two tubes. The device can additionally include at least one gripping device for securing the sack outlet of the inner sack, which gripping device can be moved up and down within the inner tube and can be pulled downwards by means of a pulling device operable from outside the double tube device.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: August 31, 1999
    Assignee: Degussa-Huls Aktiengesellschaft
    Inventors: Manfred Schmidt, Jurgen Ohlemacher, Horst Parbel, Johannes Ehrlich