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    • 3. 发明授权
    • Bipolar ink jet method and apparatus
    • 双极喷墨法和装置
    • US4395716A
    • 1983-07-26
    • US296922
    • 1981-08-27
    • Peter A. CreanJohn M. SchneiderAnthony F. Lipani
    • Peter A. CreanJohn M. SchneiderAnthony F. Lipani
    • B41J2/075B41J2/01B41J2/12G01D18/00G01D15/18
    • B41J2/12
    • An improved ink jet marking architecture for enhancing ink droplet placing accuracy. The improved architecture combines a bipolar scanning arrangement with a drop interlace scheme. The preferred marking apparatus comprises an array of ink jet column generators which direct ink droplets to first a charging region and then through a deflection region. The droplets are charged either negatively or positively depending on a desired droplet trajectory; thus the bipolar designation. The deflection region has an electric field strength slightly less than the breakdown field strength of air for the environment in which the apparatus is to operate. The high field strength reduces the charge which must be applied to the droplets and therefore minimizes the drop to drop coulomb interaction. The interlace strategy causes sequential drops from a given generator to be printed in non-sequential locations on the paper. This strategy spreads out the ink droplets in space and results in a reduction of both aerodynamic and coulombic interaction between droplets. By reducing these interactions and minimizing the time of flight for the drops the placement accuracy is increased. The placement accuracy is further enhanced by utilizing a charging scheme which takes into account the charge induced on other droplets in close proximity of the droplet to correct for coulomb interactions even the bipolar plus interlace strategy cannot avoid.
    • 改进的喷墨标记结构,用于提高墨滴放置精度。 改进的架构结合了双极扫描布置和降低交错方案。 优选的标记装置包括喷墨塔发生器的阵列,其将墨滴直接引导到充电区域,然后通过偏转区域。 根据所需的液滴轨迹,液滴被负或积极地充电; 因此是双极的名称。 偏转区域的电场强度略小于设备运行环境的空气的击穿场强。 高场强降低了必须施加到液滴上的电荷,从而使滴下降使库仑相互作用最小化。 交错策略使得从给定发生器的顺序下降被打印在纸上的非顺序位置。 这种策略扩散了空间中的墨滴,导致液滴之间的空气动力学和库仑相互作用的减少。 通过减少这些相互作用并最大限度地减少滴液的飞行时间,增加了放置精度。 通过利用充电方案进一步提高放置精度,该充电方案考虑到在液滴附近的其他液滴上引起的电荷以校正库仑相互作用,即使双极加交错策略也不能避免。
    • 6. 发明授权
    • Apparatus for fabricating spherically shaped particles of small diameter
    • 用于制造小直径球形颗粒的装置
    • US3989435A
    • 1976-11-02
    • US524014
    • 1974-11-15
    • Frederick M. AllenAnthony F. Lipani
    • Frederick M. AllenAnthony F. Lipani
    • B01J2/12B29B1/03
    • B01J2/12Y10S425/101
    • A method of forming spherically shaped pellets of relatively small diameter is disclosed which comprises the steps of depositing a finely divided congealable material on a surface of a disk shaped body, transporting the body over a closed course which extends in a plane forming an acute angle with the horizontal while rotating the body during the transport in the plane of the course thereby imparting a tumbling motion to the material and resulting in the fabrication of pellets, and collecting pellets of a predetermined range of sizes. A pelletizing apparatus is described which is adapted for forming pellets of relatively small diameter having enhanced surface characteristics and for automatically classifying the pellets by size.
    • 公开了一种形成相对小直径的球形颗粒的方法,其包括以下步骤:在盘形体的表面上沉积细碎的可凝结材料,将本体运送在与形成锐角的平面中延伸的闭合过程 水平的同时在运输过程中在主体的平面内旋转主体,从而对材料进行翻滚运动并导致制造颗粒,并收集预定尺寸范围的颗粒。 描述了一种适于形成具有增强的表面特性的相对小直径的颗粒并用于根据尺寸自动分级颗粒的造粒装置。