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    • 4. 发明授权
    • Rotary seal distributor member for a centrifuge
    • 用于离心机的旋转密封分配器
    • US4098455A
    • 1978-07-04
    • US782490
    • 1977-03-29
    • David W. AmmannDavid A. BatesDaniel B. Granzow
    • David W. AmmannDavid A. BatesDaniel B. Granzow
    • B04B5/04B04B7/00
    • B04B5/0442
    • A rotary distributor seal for a rotary centrifuge which comprises a tubular housing having sealed ends, a relatively rotatable fluid conveying apertured spindle coaxially mounted in the housing, and several resilient, spaced ring seals positioned about the spindle to seal the annular space between the spindle and the housing, and to subdivide it into several annular chambers. Ports communicate with the chambers to provide fluid flow from the ports through the separate chambers and through the spindle. In accordance with this invention, support members are positioned in alternate, spaced chambers between pairs of ring seals to prevent collapse of the ring seal pairs together.
    • 一种用于旋转离心机的旋转分配器密封件,其包括具有密封端的管状壳体,同轴地安装在壳体中的相对可旋转的流体输送多孔主轴,以及围绕主轴定位的若干弹性隔开的环形密封件,以密封主轴和 并将其细分成几个环形室。 端口与腔室连通以提供流体从端口流过分离室并通过主轴。 根据本发明,支撑构件定位在成对的环形密封件之间的交替的隔开的腔室中,以防止环形密封件对在一起。
    • 8. 发明授权
    • Process of making an orifice plate for a page-wide ink jet printhead
    • 制造用于全页式喷墨打印头的孔板的工艺
    • US5955022A
    • 1999-09-21
    • US797838
    • 1997-02-10
    • Kelsey R. WalkerDaniel B. Granzow
    • Kelsey R. WalkerDaniel B. Granzow
    • B41J2/16B23K26/00B29C35/08
    • B41J2/1634B41J2/162
    • A page-wide, drop-on-demand type ink jet printhead and an associated method of manufacturing an orifice plate. The orifice plate is comprised of a block of material in which a first portion of the block of material has been removed to define an ink reservoir. Also formed in the orifice plate are a series of apertures, each of the apertures includes an ink jet and an ink jet nozzle. A fill channel, which extends between the ink reservoir and each ink jet, is also formed in the orifice plate to provide a supply of ink to the ink jet. An intermediate layer is mounted to the orifice plate. The intermediate layer is formed of an active piezoelectric material and a series of piezoelectric actuators, each acoustically coupled to a corresponding one of the series of apertures, are formed on the intermediate layer. By applying a voltage differential between first and second electrodes, which make up each piezoelectric actuator, the intermediate layer is deflected to effect ejection of a droplet of ink from the aperture acoustically coupled to each piezoelectric actuator.
    • 页面范围的按需喷墨打印头和制造孔板的相关方法。 孔板由一块材料组成,其中已经去除了材料块的第一部分以限定油墨储存器。 在孔板中还形成有一系列孔,每个孔包括喷墨和喷墨喷嘴。 在油墨储存器和每个喷墨之间延伸的填充通道也形成在孔板中以向喷墨提供油墨供应。 中间层安装在孔板上。 中间层由有源压电材料形成,并且在中间层上形成一系列压电致动器,每个压电致动器声耦合到相应的一个孔。 通过在构成每个压电致动器的第一和第二电极之间施加电压差,中间层被偏转以实现墨滴从声耦合到每个压电致动器的孔的喷射。