Ink dispenser with "frozen" solid ink
Patent 4490731 Issued on December 25, 1984. Estimated Expiration Date: 
November 22, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 22, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3247519 3653932 3715219 Ink jet recording device using thermal propulsion and mechanical pressure changes Non-impact printing method Natural wax-containing ink jet inks Patent #: 4390369 InventorApplicationNo. 06/443410 filed on 11/22/1982US Classes:347/88, For hot-melt fluid (e.g., phase-change)106/31.29, Hot melt type or wax containing106/31.57, Specified vehicle, solvent, or dispersing medium containing106/31.58, Organic oxygen compound containing219/421, Melting pot222/146.5, By electrical energy346/99, Card control347/67, With additional feature347/99, Hot-melt (e.g., phase-change)392/472, Flexibe (e.g., hose, etc.)392/488Pipe or tube forms flow pathExaminersPrimary: Hartary, Joseph W.Attorney, Agent or FirmInternational ClassesB41J 2/175 (20060101)C09D 11/00 (20060101) AbstractA new type of apparatus for dispensing "frozen" solid ink and the ink for use therein for printing on paper is disclosed. The ink dye vehicle is chosen to have a melting point above room temperature, so that the ink which is melted in the apparatus will not be subject to evaporation or spillage during periods of non-printing. The vehicle is also chosen to have a low critical temperature to permit the use of the solid ink in a thermal ink jet printer.Field of SearchCOMBINED WITH NON-RECORDING REGISTER | |
