Patents by Inventor Dieter Gritzuhn

Dieter Gritzuhn 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: 8424875
    Abstract: The invention relates to a device for depositing sheets for a printing machine, preferably for an electrophotographically operating printing machine, said device comprising at least one sheet transport member which can be driven so as to rotate and which is provided for the detection of a lead edge of a sheet and for depositing the sheet after it has covered a rotating path.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: April 23, 2013
    Assignee: Eastman Kodak Company
    Inventors: Jens U. Heise, Bernhard A. Linke, Dieter Gritzuhn, Dirk Dobrindt
  • Publication number: 20130001872
    Abstract: The invention relates to a device for depositing sheets for a printing machine, preferably for an electrophotographically operating printing machine, said device comprising at least one sheet transport member which can be driven so as to rotate and which is provided for the detection of a lead edge of a sheet and for depositing the sheet after it has covered a rotating path.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Inventors: Jens U. Heise, Bernhard A. Linke, Dieter Gritzuhn, Dirk Dobrindt
  • Publication number: 20120205862
    Abstract: The present invention relates to a device and a method for depositing sheet-shaped substrates (6), in particular printing materials, in a printing machine so as to form a stack. The device comprises a tray (10) for receiving the substrates, said tray having a tray surface (8) that is tilted about a first axis and about a second axis, relative to a horizontal. Also provided are a lifting device for lifting and lowering the tray, as well as a first abutment having a first abutment surface and a second abutment (26) having a second abutment surface, with the first and the second abutment surfaces being arranged so as to be perpendicular to each other, and with substrates deposited on the tray coming to abut against the first and the second abutment surfaces due to the tilting of the tray surface.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 16, 2012
    Inventors: Soenke Christian Bluethgen, Frank Nagel, Dieter Gritzuhn
  • Publication number: 20120193868
    Abstract: The present invention relates to a device and a method for depositing sheet-shaped substrates (6), in particular printing materials, in a printing machine so as to form a stack. The device comprises a tray (10) for receiving the substrates, said tray having a tray surface (8) that is tilted about a first axis and about a second axis, relative to a horizontal. Also provided are a lifting device for lifting and lowering the tray, as well as a first abutment (25) having a first abutment surface and a second abutment (26) having a second abutment surface, with the first and the second abutment surfaces being arranged so as to be perpendicular to each other, and with substrates deposited on the tray coming to abut against the first and the second abutment surfaces due to the tilting of the tray surface.
    Type: Application
    Filed: June 18, 2010
    Publication date: August 2, 2012
    Inventors: Soenke Christian Bluethgen, Frank Nagel, Dieter Gritzuhn
  • Patent number: 7997575
    Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element, which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: August 16, 2011
    Assignee: Eastman Kodak Company
    Inventors: Dirk Dobrindt, Rolf Dieter Gritzuhn
  • Publication number: 20110187038
    Abstract: The invention relates to a device for depositing sheets for a printing machine, preferably for an electrophotographically operating printing machine, said device comprising at least one sheet transport member which can be driven so as to rotate and which is provided for the detection of a lead edge of a sheet and for depositing the sheet after it has covered a rotating path. Therefore, the object of the invention is to make depositing a sheet and turning over a sheet, in particular also larger and/or thinner sheets, more reliable with the use of a device of the aforementioned type. In accordance with the invention, this object is achieved by a device which is characterized by a blower arrangement for the application of air to the sheet to be deposited. Due to the application of air, the sheet to be deposited and to be turned over is advantageously supported by an additional momentum and by its inherent stiffness, so that the sheet will unroll fully after its lead edge has been caught by the rotation.
    Type: Application
    Filed: August 3, 2006
    Publication date: August 4, 2011
    Inventors: Jens U. Heise, Bernhard Linke, Dieter Gritzuhn, Dirk Dobrindt
  • Publication number: 20100059931
    Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element, which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.
    Type: Application
    Filed: November 16, 2009
    Publication date: March 11, 2010
    Inventors: Dirk Dobrindt, Rolf Dieter Gritzuhn
  • Patent number: 7658377
    Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element (6), which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element (10) for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: February 9, 2010
    Assignee: Eastman Kodak Company
    Inventors: Dirk Dobrindt, Rolf Dieter Gritzuhn