Patents by Inventor Ernst Stock

Ernst Stock 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).

  • Method and apparatus for conveying an imbricated stream of sheets to a sheet processing machine
    Patent number: 5288067
    Abstract: A method and apparatus for adjusting the suction pressure drawn through a conveyor belt which conveys a stream of underlapping sheets to an alignment station where sheets are aligned prior to being fed to a sheet-processing machine. A source of high pressure is coupled to a low pressure suction chamber adjacent the alignment station when the final sheet in the stream reaches the alignment end. The high pressure source rapidly equalizes the pressure with the chamber, thus enabling easy lateral alignment of the final sheet in the stream which has no following underlapping sheets to otherwise block the suction pressure.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: February 22, 1994
    Assignee: MAN Roland Druckmaschinen AG
    Inventor: Ernst Stock