Patents by Inventor Andrea Accatino

Andrea Accatino 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).

  • Recognition of ink expiry in an ink jet printing head
    Patent number: 5414452
    Abstract: In ink jet printers in which the printing head (33) is connected to an ink reservoir (16), such as may be used in teleprinter or facsimile apparatuses, it is necessary to foresee the expiry of the ink in the reservoir in order to be able in due time to replace the printing head or the pertinent cartridge. A logic circuit (40) is used to count the number of drops gradually expelled, and, with any necessary correction, compares this number with the maximum number of drops equivalent to a known volume of ink contained on average in the reservoir. Expiry of the ink is indicated in in dependence on the result of the comparison.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: May 9, 1995
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventors: Andrea Accatino, Angelo Arca