Patents by Inventor Ehrhard Gehrke

Ehrhard Gehrke 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).

  • Process and device for selecting a single stacked flat object from a stack and use in packaging of cigarettes
    Patent number: 6145829
    Abstract: A process for selecting a single stacked flat object from a stack of flat objects. The lowermost flat object is downwardly detached from the rest of the stack of flat objects by negative pressure on at least one of its edge areas) running parallel to the take-off direction. In at least one suction area, the flat object is held by negative pressure onto a conveyor that can move back and forth. The flat object is advanced underneath a scraper and then further conveyed. The device for carrying out this process has a hopper for the stack of flat objects, a scraper, at least one suction device to partially detach the lowermost flat object, a conveyor, and a take-off device.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: November 14, 2000
    Assignee: Phillip Morris Incorporated
    Inventors: Horst Furmanski, Ehrhard Gehrke, Kamal Maheronnaghch