Apparatus for producing a spray of droplets of a liquid
Patent 4829996 Issued on May 16, 1989. Estimated Expiration Date: 
February 24, 2007. 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 24, 2007. 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 398327 1958406 2803248 3232292 3698635 Ink jet nozzle for use in a recording unit Container for electrostatic spraying of liquids Patent #: 4275846 InventorsAssigneeApplicationNo. 07/017416 filed on 02/24/1987US Classes:128/200.14, LIQUID MEDICAMENT ATOMIZER OR SPRAYER239/706With charging electrode mounted on spray deviceExaminersPrimary: Coven, Edward M.Assistant: Lacyk, John P. Attorney, Agent or FirmInternational ClassesA61M 15/02 (20060101)B01J 2/02 (20060101) B01J 2/04 (20060101) B05B 5/08 (20060101) B05B 5/025 (20060101) B05B 5/00 (20060101) Foreign Application Priority Data1986-02-21 GBAbstractApparatus, for example an inhaler, is disclosed in which a spray is formed electrostatically from an outlet 6 to achieve uniform droplet size. The spray is then discharged for its intended use--in the example inhaling. The spray is discharged completely by corona produced by a sharp discharge electrode 16 which is charged to a polarity opposite that of the liquid. In order to prevent the corona from spoiling the formation of the spray itself, the liquid of the outlet 6 is protected by a neutral shield electrode 8. The spray issues through a hole 14 in the shield electrode. The hole is sufficiently small to prevent corona getting through, yet sufficiently large to allow the spray through. | |
