Ink jet nozzle for use in a recording unit
Patent 3941312 Issued on March 2, 1976. Estimated Expiration Date: 
March 2, 1993. 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.
March 2, 1993. 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 3656171 3700169 3701476 3776461 3848118 InventorsAssigneeApplicationNo. 554020 filed on 02/28/1975US Classes:239/696, Having plural exit openings239/102.1, WITH MEANS TO VIBRATE OR JIGGLE DISCHARGE347/47, Nozzles347/55With electric field ejection (applied to fluid)ExaminersPrimary: King, Roy V.Attorney, Agent or FirmInternational ClassB41J 2/16 (20060101)AbstractA recording unit is disclosed which is provided with a hollow, very small nozzle supplied with a liquid imaging material, an electrode plate having formed therein a through hole coaxial with the nozzle and disposed opposite to the tip of the nozzle and a ring of small diameter disposed on the nozzle coaxially therewith in the vicinity of its tip or between the nozzle and the electrode plate. A convergent or unfluctuated jet of the liquid imaging material produced by a voltage applied between the nozzle and the electrode plate disposed opposite thereto is directed through the through hole of the electrode plate to a recording member or medium placed adjacent to the electrode plate on the opposite side from the nozzle. The convergent jet of the liquid imaging material thus produced is made intermittent by applying a voltage to the ring, thereby to record images.Field of SearchIncluding electrostatic charging | |
