Patents by Inventor Fritz Dietiker

Fritz Dietiker 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: 6436023
    Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: August 20, 2002
    Assignee: Printronix, Inc.
    Inventors: Gordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
  • Publication number: 20010000172
    Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
    Type: Application
    Filed: November 30, 2000
    Publication date: April 5, 2001
    Inventors: Gordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
  • Patent number: 6183406
    Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: February 6, 2001
    Assignee: Printronix, Inc.
    Inventors: Gordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
  • Patent number: 5957827
    Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: September 28, 1999
    Assignee: Printronix, Inc.
    Inventors: Gordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker