Patents by Inventor Fritz Schulz

Fritz Schulz 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 of and apparatus for stacking sheets of paper and the like
    Patent number: 7066462
    Abstract: A stream of successive sheets of paper, foil or the like is converted into a series of piles at a stacking station where successive sheets are caused to descend onto a pallet which is adjacent a monitoring device serving to transmit signals denoting the levels of successive uppermost sheets of a growing pile. Such signals are processed by a unit which controls one or more valves in a pneumatic elevator for the discharge end of the endless flexible conveyor which supplies successive sheets to the stacking station. The elevator ensures that the distance between the discharge end of the conveyor and the uppermost sheets of the growing pile remains within a preselected range. This contributes to the accuracy of stacking of sheets on their pallet.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: June 27, 2006
    Assignee: E.C.H. Will GmbH
    Inventors: Norbert Rilitz, Eckhardt Borutta, Fritz Schulz
  • Method of and apparatus for stacking sheets of paper and the like
    Publication number: 20020185808
    Abstract: A stream of successive sheets of paper, foil or the like is converted into a series of piles at a stacking station where successive sheets are caused to descend onto a pallet which is adjacent a monitoring device serving to transmit signals denoting the levels of successive uppermost sheets of a growing pile. Such signals are processed by a unit which controls one or more valves in a pneumatic elevator for the discharge end of the endless flexible conveyor which supplies successive sheets to the stacking station. The elevator ensures that the distance between the discharge end of the conveyor and the uppermost sheets of the growing pile remains within a preselected range. This contributes to the accuracy of stacking of sheets on their pallet.
    Type: Application
    Filed: June 7, 2002
    Publication date: December 12, 2002
    Inventors: Norbert Rilitz, Eckhardt Borutta, Fritz Schulz