Electronic stamp
July 6, 2021. 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 ReferencesManually sweeping apparatus with image sensor Hand-held manually sweeping printing apparatus Hand recording apparatus Manually operable sweeping-type printing apparatus Hand held recording apparatus with window on lower body portion for viewing recording position Hand-held sweep electronic printer with compensation for non-linear movement Hand-held electronic printer Printer with motion detection Handy printer system Patent #: 5927872 InventorAssigneeApplicationNo. 10332021 filed on 07/06/2001US Classes:101/327, PRINTING MEMBERS AND INKERS101/103, Printing members and inkers101/112, Stencil plate101/368, PRINTING MEMBERS400/88, POCKET TYPEWRITER347/109Hand-heldExaminersPrimary: Hirshfeld, Andrew H.Assistant: Evans, Andrea H. Attorney, Agent or FirmForeign Patent References
International ClassB41F 3100AbstractAn electronic stamp or method for performing stamps where one or several sets of phototransistors (8), with associated light emitting diodes (9), are mounted on a print head (3) that is hand-operated along beams (5) with the aid of a lever (4) coupled to an upper stamp housing (1). The phototransistors (8) generate signals used by a micro controller circuit (12) in order to in real time calculate positioning parameters about the print head (3), and thus be able to steer and control a stream of ink drops intended to form a predetermined printout pattern. | |
