Patents by Inventor Ingolf Depta

Ingolf Depta 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: 4855764
    Abstract: An ink printing head of an ink printing means has a cover element and a stripper element allocated to it. The cover element and the stripper element are seated in front of the ink printing head in displaceable fashion such that, in a first operating condition, only the cover element covers the ink discharge openings in a distance forming a gap, whereby the gap is then filled with writing fluid via the ink discharge openings. In a second operating condition, the stripper element wipes across the ink discharge opening and thereby eliminates the ink in the gap. Cover element and stripper element are connected to one another and are actuated by an electromotive means.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: August 8, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rolf Humbs, Ingolf Depta
  • Patent number: 4665409
    Abstract: The invention relates to a write head for ink printer devices comprising tubular ink channels which are surrounded over a part of their length by individually drivable small piezo tubes and which are situated proceeding between an ink supply part and the discharge openings of the write head. The ink channels applied to a carrier part form a pre-fabricatable channel block together with this carrier part. A channel plate is secured either to that side at which the ink channels end free or to the back surface of the carrier part. In one embodiment, the channel plate comprises a layer plate having through holes into which the free ends of the ink channels equipped with the small piezo tubes are pluggable. Transition channels for guiding the ink flow and the discharge openings of the write head for fashioned in further layer plates of the channel plate.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: May 12, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Martin Behrens, Ingolf Depta, Gunter Rosenstock
  • Patent number: 4588999
    Abstract: For the contacting and for the fixing of tubular piezoelements or, more particularly, piezotubes, in the recording head of an ink printer, a tube holder, first contact elements, a clamping part into which the tube holder can be snapped, and second contact elements are disclosed. The tube carrier has cut-outs corresponding to the form and position of the piezotubes, into which the first contact elements can be placed. The clamping part has openings, into which the second contact elements are inserted. After the tube carrier has been snapped into place, the first and second contact elements, being held in correct position, are soldered.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: May 13, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ingolf Depta, Wilfried Kindler