Relating to postal franking machines
Patent 4746234 Issued on May 24, 1988. Estimated Expiration Date: 
February 6, 2006. 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.
February 6, 2006. 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 3868008 3920113 Imaging apparatus for typewriter employing electrostatic printing process Classifying apparatus Thermal matrix type printing head Labelling machines Thermal ink jet printhead Postal fixed and variable data thermal printer Postage meter thermal printer tape drive system Patent #: 4581616 InventorAssigneeApplicationNo. 06/826557 filed on 02/06/1986US Classes:400/120.01, Thermal101/91, Rotary machines347/171, THERMAL MARKING APPARATUS OR PROCESSES400/661.3Including cylindrical sections or rings (e.g., of character-space width)ExaminersPrimary: Pieprz, WilliamAttorney, Agent or FirmInternational ClassG07B 17/00 (20060101)Foreign Application Priority Data1983-07-23 GBAbstractPostal franking apparatus in which both semi-permanent and variable information to be printed onto an envelope is stored electrically in a memory and is read out to form printing control signals for controlling a thermal printer containing thermally activable inking means at a printing station into which the envelope is placed. The thermal printer is in the form of an elongate conductive plate having a large plurality of electrical connections along its length to which are fed the printing control signals in synchronized relationship to passage of the envelope, the plate being of sufficiently high resistivity that only localized areas thereof are heated by the currents associated with the control signals, and ink is applied to the envelope only at the heated localities.Other References
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