Patents by Inventor Andreas Eckardt

Andreas Eckardt 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).

  • Thermofixing device for a printing or copying machines having a low temperature preheating saddle
    Patent number: 5568241
    Abstract: A thermofixiug device for fixing toner images on a strip-shaped or sheet-like recording substrate (17) of an electrophotographic printing or copying machine contains a thermoprinting fixing station (11, 12) and a heated preheating saddle (15) located upstream of the thermoprinting fixing station in the recording substrate running direction. The preheating saddle (15) is designed as a low temperature saddle with the largest possible constructional length, so that the temperature difference between recording substrate (17) end saddle surface (24) is as small as possible. The preheating saddle has, in the recording substrate running direction, a plurality of heating zones (21, 23). A control device controls the heating zones (21, 23) in such a manner that, along the preheating saddle (15), an approximately constent thermal energy flow occurs on the saddle surface (24) to the recording substrate (17).
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: October 22, 1996
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventors: Edmund Creutzmann, Andreas Eckardt, Joachim Hoffmann, Walter Kopp, Josef Windele