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    Process for coating three-dimensional substrates with thin organic films and products
    67.
    发明申请
    Process for coating three-dimensional substrates with thin organic films and products 审中-公开
    用薄的有机薄膜和产品涂覆三维底材的方法

    公开(公告)号：US20030161937A1

    公开(公告)日：2003-08-28

    申请号：US10084293

    申请日：2002-02-25

    Inventor： Mark W. Leiby ,  James J. Cerul ,  Harvey L. Berger

    IPC: A61L002/00 ,  B05D003/02

    CPC classification number: B05B17/063 ,  B05B17/0623 ,  B05D1/02 ,  B05D3/0493 ,  B06B3/00 ,  B06B2201/77

    Abstract: The present invention relates to an apparatus and process for producing a thin organic film on a substrate using an ultrasonic nozzle to produce a cloud of micro-droplets in a vacuum chamber. The micro-droplets move turbulently within the vacuum chamber, isotropically impacting and adhering to the surface of the substrate. The resulting product has a smooth, continuous, conformal, and uniform organic thin film, when the critical process parameters of micro-droplet size, shot size, vacuum chamber pressure, and timing are well-controlled, and defects such as nullorange peelnull effect and webbing are avoided. The apparatus includes an improved ultrasonic nozzle assembly that comprises vacuum sealing and a separate, independent passageway for introducing a directed purging gas.

    Abstract translation: 本发明涉及使用超声波喷嘴在基板上制造薄有机膜以在真空室中产生微滴的云的装置和方法。 微滴在真空室内湍动地移动，各向同性地冲击并粘附到基底表面。 当微滴尺寸，注射尺寸，真空室压力和时间的关键工艺参数被良好控制时，所得产品具有光滑，连续，保形和均匀的有机薄膜，以及诸如“橙皮” 避免了效果和织带。 该设备包括改进的超声波喷嘴组件，其包括真空密封和用于引入定向吹扫气体的独立的独立通道。

    Ultrasonic aerosol apparatus
    68.
    发明授权
    Ultrasonic aerosol apparatus 失效
    超声波气雾仪

    公开(公告)号：US5803362A

    公开(公告)日：1998-09-08

    申请号：US634270

    申请日：1996-04-18

    Applicant: Nicola Fraccaroli

    Inventor： Nicola Fraccaroli

    IPC: A61M11/00 ,  A61M15/00 ,  B06B1/02 ,  B05B17/06

    CPC classification number: A61M15/0085 ,  B06B1/0238 ,  B06B2201/40 ,  B06B2201/77

    Abstract: An ultrasonic aerosol apparatus having a piezoelectric element which generates ultrasonic signals in response to signals received from an oscillating circuit, where the temperature of the piezoelectric element is controlled by an electronic device such as an N.T.C. thermistor. The temperature control device senses the temperature of the piezoelectric element and controls the power fed to the oscillator circuit in accordance with the temperature of the piezoelectric element. Rather than cut power completely to the oscillator circuit (thereby interrupting the atomization process of the apparatus), the temperature control device reduces power fed to the oscillator circuit when the piezoelectric element temperature rises above a predetermined value, and increases power fed to the oscillator circuit when the piezoelectric element temperature falls below a predetermined value. Leakage of liquids (e.g., water or medication) contained within the apparatus is avoided by the lack of joints in the liquid-holding apparatus containers. The piezoelectric element may be ceramic, and may be supported by an elastic element which itself may act as an electrical connection between the piezoelectric element and the temperature control device.

    Abstract translation: 一种具有压电元件的超声波气溶胶装置，其响应于从振荡电路接收的信号产生超声波信号，其中压电元件的温度由诸如N.T.C的电子设备控制。 热敏电阻 温度控制装置感测压电元件的温度，并且根据压电元件的温度控制馈送到振荡器电路的功率。 温度控制装置不是将功率完全切断到振荡器电路（从而中断设备的雾化处理），当压电元件温度升高到高于预定值时降低馈送到振荡器电路的功率，并且增加馈送到振荡器电路的功率 当压电元件温度低于预定值时。 由于液体保持装置容器中没有接头，可避免装置内所含的液体（例如水或药物）的泄漏。 压电元件可以是陶瓷的，并且可以由弹性元件支撑，弹性元件本身可以用作压电元件和温度控制装置之间的电连接。

    Circuit arrangement for accurately and effectively driving an ultrasonic transducer
    69.
    发明授权
    Circuit arrangement for accurately and effectively driving an ultrasonic transducer 失效
    用于精确有效地驱动超声波换能器的电路布置

    公开(公告)号：US5216338A

    公开(公告)日：1993-06-01

    申请号：US799396

    申请日：1991-11-27

    Applicant: Robert F. Wilson

    Inventor： Robert F. Wilson

    IPC: B06B1/02

    CPC classification number: B06B1/0253 ,  B06B2201/77

    Abstract: A method for driving an ultrasonic transducer, intended for use in atomization of liquids, at one of its selected resonance frequencies, by tuning out the capacitance of the ultrasonic transducer by means of an inductor, by sensing the transducer current, by comparing the phases of the transducer driving voltage and the transducer current and by controlling a voltage controlled oscillator for driving the ultrasonic transducer, by means of a phase error signal such that the ultrasonic transducer is driven with a frequency at which the transducer driving voltage and the transducer current are in phase, whereby the transducer driving circuit is locked to a natural resonance frequency of the ultrasonic transducer.

    Abstract translation: 一种用于驱动超声波换能器的方法，用于通过感应换能器电流，通过感应换能器电流，通过感应换能器电流来调谐出超声波换能器的电容，通过比较所选择的共振频率的相位来驱动液体的雾化， 传感器驱动电压和换能器电流，并且通过控制用于驱动超声换能器的压控振荡器，借助于相位误差信号，使得超声波换能器以换能器驱动电压和换能器电流所处的频率被驱动 从而将换能器驱动电路锁定到超声换能器的固有共振频率。

    Process and circuit for exciting an ultrasonic generator and its use for atomizing a liquid
    70.
    发明授权
    Process and circuit for exciting an ultrasonic generator and its use for atomizing a liquid 失效
    用于激发超声波发生器的过程和电路及其用于雾化液体的用途

    公开(公告)号：US4901034A

    公开(公告)日：1990-02-13

    申请号：US345344

    申请日：1989-04-28

    Applicant: Jagdt Frank-Peter

    Inventor： Jagdt Frank-Peter

    IPC: B05B17/06 ,  B06B1/02

    CPC classification number: B06B1/0253 ,  B05B17/0607 ,  B06B2201/77

    Abstract: In a process and a circuit for exciting an ultrasonic generator the latter is excited by an output signal of a voltage-controlled oscillator, which is controlled by a control device including a triangular wave generator so that its frequency is periodically swept in a range covering the series resonance of the ultrasonic generator. A measured quantity value, which can be voltage or current corresponding to the damping of the ultrasonic generator, is formed and is compared with the maximum permitted damping. If the established damping is smaller than the maximum permitted damping, the oscillator is additionally regulated as a function of the measured quantity. This measured quantity is preferably a function of the exciting current of the ultrasonic generator. An instantaneous measured value and a delayed value are formed and their difference is compared with a threshold value in a comparator. If this difference is the same as the threshold value, the sweep direction in the control device is reversed. The power at the ultrasonic generator can be regulated by varying the operating voltage of an output stage connected upstream of the ultrasonic generator. The process can be used for atomizing a liquid by an ultrasonic generator provided with an atomizer disk.

    Abstract translation: 在用于激发超声波发生器的过程和电路中，后者由压控振荡器的输出信号激发，该压控振荡器由包括三角波发生器的控制装置控制，使得其频率在覆盖 超声波发生器的串联谐振。 测量的量值可以是与超声波发生器的阻尼相对应的电压或电流，并与最大允许阻尼进行比较。 如果建立的阻尼小于最大允许阻尼，则振荡器被附加地调节为测量的量的函数。 该测定量优选为超声波发生器的励磁电流的函数。 形成瞬时测量值和延迟值，并将它们的差异与比较器中的阈值进行比较。 如果该差异与阈值相同，则控制装置中的扫描方向相反。 可以通过改变连接在超声波发生器上游的输出级的工作电压来调节超声波发生器的功率。 该方法可用于通过设置有雾化盘的超声波发生器来雾化液体。

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