Patents by Inventor Rudolf Wachtler

Rudolf Wachtler 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: 5550624
    Abstract: An electrophotographic printing device for the simultaneous printing of both sides of a recording medium contains two printing modules each having an associated electrophotographic processor which are secured opposite one another in the printing device in such a way that a conveyor channel for the recording medium is opened between the printing modules. The recording medium passes over a guide designed as a pair of rollers so that it can be brought into contact with its rear side and/or its front side with the associated intermediate carrier of the respective printing modules. The guide roller for the intermediate carrier in cooperation with a counter roller or the guide rollers arranged in opposition for the intermediate carrier serve here as pairs of rollers.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: August 27, 1996
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventor: Rudolf Wachtler
  • Patent number: 5410384
    Abstract: The invention relates to a printing or copying device having a photoconductor drum (10) for receiving two adjacently arranged toner images for a recto and a verso of a recording medium (15). Provided for the simultaneous transfer of the toner images onto the recording medium (15) are two separate transfer ribbons for the recto toner image and the verso toner image. In this case, one transfer ribbon is deflected over a deflection device in such a way that the transfer ribbons (T1 and T2) are positioned one above the other in a fuser station (19) designed as a thermal printing fuser station. The recording medium (15) is passed between the transfer ribbons (T1 and T2) and is thus printed verso/recto simultaneously.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: April 25, 1995
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventor: Rudolf Wachtler
  • Patent number: 5169375
    Abstract: A stacking device for the pre-folded continuous paper (13) of a high-speed printing device (10) is of swivel-out design. It can be swivelled out of a basic position (A) initially into a removal position (B) by means of a guide system without changing the output height of the paper deposit surface. By further swivelling it can be placed in an additional removal position (C), the height of which is adjustable.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: December 8, 1992
    Assignee: Siemens Nixdorf Informationssysteme AG
    Inventor: Rudolf Wachtler