Patents by Inventor Friedhelm Czeranski

Friedhelm Czeranski 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).

  • Cartridge for refilling a printing cartridge with ink
    Patent number: 5813339
    Abstract: A refilling cartridge is provided for refilling a jet printer cartridge with ink. The refilling cartridge includes a housing for a foil pouch refilling chamber and a hollow needle projecting from the housing. A rubber elastic sealing element is provided at a free end of the needle to be selectively penetrated by the needed. The sealing element is secured by a movable retaining element that shields the hollow needed and is movable in a lengthwise direction of the hollow needle to selectively expose the free end of the hollow needle. A spring element holds the retaining element in a position where the sealing element seals the open end of the needle and releasable locking elements are provided for the retaining element.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 29, 1998
    Assignee: Laser Care Modul Recycling GmbH
    Inventors: Franz-Ulrich Schmitt, Kurt Moser, Friedhelm Czeranski, Christian Geiermann