Apparatus for electrostatically depositing and retaining materials upon a substrate
June 6, 2015. 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 Re30401 2408143 3831606 Medicament dispensing process for inhalation therapy Inhalator for agglomeratable pulverulent solids Three electrode system in the generation of electrostatic images Novel dosage forms Fluid jet assisted ion projection and printing apparatus Medicament inhalation device Devices for administering medicaments to patients InventorAssigneeApplicationNo. 467647 filed on 06/06/1995US Classes:118/624, Control of deposition of coating material or selective area, e.g., pattern or edge effect118/625, Plural electrodes selectively energized118/696, PROGRAM, CYCLIC, OR TIME CONTROL118/698, Having selection means for alternate operational sequences128/203.15, Particulate treating agent carried by breathed gas128/203.23, Pocket-type draw tube having discharge aperture for air/treating agent mixture at end thereof604/58Powder dispenserExaminersPrimary: Warden, JillAssistant: Ludlow, Jan Attorney, Agent or FirmForeign Patent References
International ClassB05B 005/10AbstractApparatus having a substrate having a planar conductive plating located on a first surface of a dielectric layer and having a conductive trace (a collection trace) located on a second surface of the dielectric layer such that the conducting plating and the conductive trace have a parallel, spaced-apart relation. The conductive trace is charged by supplying a voltage to the plating and the trace to establish a voltage differential across the dielectric layer. As such, depending upon the magnitude of the voltage, polarity of the voltage and the duration for which the voltage is applied to the trace, a certain quantity and polarity of charge accumulates on the trace. The material to be deposited is charged to an opposite polarity than that of the trace and then the deposition material is applied to the trace. Consequently, the substrate electrostatically retains the deposition material on the collection trace.Field of SearchPROGRAM, CYCLIC, OR TIME CONTROLHaving selection means for alternate operational sequences Electrostatic and/or electromagnetic attraction or projection of coating material to work Control of deposition of coating material or selective area, e.g., pattern or edge effect Plural electrodes selectively energized With electrode for collecting fugitive or off-target coating material Particulate treating agent carried by breathed gas Pocket-type draw tube having discharge aperture for air/treating agent mixture at end thereof Powder dispenser | |
