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48 条记录 (耗时 0.019 秒)

    Selective ink-jet printing device
    1.
    发明授权
    Selective ink-jet printing device 失效
    选择性喷墨打印设备

    公开(公告)号：US4502054A

    公开(公告)日：1985-02-26

    申请号：US392664

    申请日：1982-06-28

    申请人： Riccardo Brescia ,  Mario Buat ,  Giandomenico Dagna ,  Alessandro Scardovi

    发明人： Riccardo Brescia ,  Mario Buat ,  Giandomenico Dagna ,  Alessandro Scardovi

    IPC分类号： B41J2/05 ,  B41J2/065 ,  B41J2/175 ,  G01D15/18

    CPC分类号： B41J2/065

    摘要： The device comprises a printing head (15) constituted by an insulating container (19) with a capillary nozzle (36). The electrically conductive ink is kept under circulation in the container via a feed tube (26, 23) and a return tube (27, 24) leading to a suction pump, in order to allow the formation of a convex meniscus at the exit aperture of the nozzle (36) and eliminate any vapor bubbles. A pulse generator creates a voltage of a predetermined value and duration between an electrode (37) external to the nozzle and an electrode (23) in contact with the ink, in order to create a state of excitation of the meniscus and partial vaporization of a layer of ink, such as to expel a plurality of ink particles. The head is mounted on a carriage movable transversely to the paper, which advances at each stroke reversal of the head.

    摘要翻译： 该装置包括由具有毛细管喷嘴（36）的绝热容器（19）构成的打印头（15）。 导电油墨经由供给管（26,23）和通向抽吸泵的返回管（27,24）在容器中保持循环，以便允许在出口孔处形成凸起的弯液面 喷嘴（36）并消除任何蒸气泡。 脉冲发生器产生在喷嘴外部的电极（37）和与墨水接触的电极（23）之间的预定值和持续时间的电压，以便产生弯液面的激发状态和部分蒸发的状态 油墨层，例如排出多个油墨颗粒。 头部安装在横向于纸张移动的托架上，其在头部的每次行程反转时前进。

    Ink jet printing method and device
    2.
    发明授权
    Ink jet printing method and device 失效
    喷墨打印方法和装置

    公开(公告)号：US4546361A

    公开(公告)日：1985-10-08

    申请号：US545506

    申请日：1983-10-26

    申请人： Riccardo Brescia ,  Enrico Manini ,  Edoardo Balbo ,  Alessandro Scardovi

    发明人： Riccardo Brescia ,  Enrico Manini ,  Edoardo Balbo ,  Alessandro Scardovi

    IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  G01D15/16

    CPC分类号： B41J2/1429

    摘要： A droplet of ink 11 is expelled from a nozzle in a wall, so as to strike a printing medium, by suddenly moving the wall towards the ink 11 with which it is in contact. This movement is effected by energizing a piezoelectric sleeve. The ink droplet is expelled by virtue of the inertia of the ink resisting the movement of the wall and creating pressure. Practical embodiments are described in which the wall containing the nozzle is formed by the tapered end of a capillary tube.

    摘要翻译： 一滴油墨11从墙壁上的喷嘴排出，以便通过突然将壁朝向与其接触的油墨11移动而撞击打印介质。 该运动通过对压电套筒通电来实现。 由于墨水的惯性抵抗了壁的移动并产生压力，墨滴被排出。 描述了包含喷嘴的壁由毛细管的锥形端形成的实践实施例。

    System for detecting the level of liquid in a tank
    7.
    发明申请
    System for detecting the level of liquid in a tank 有权
    用于检测罐中液体液位的系统

    公开(公告)号：US20050262939A1

    公开(公告)日：2005-12-01

    申请号：US10520412

    申请日：2003-07-08

    申请人： Alessandro Scardovi

    发明人： Alessandro Scardovi

    IPC分类号： G01F23/26 ,  G01F23/00

    CPC分类号： G01F23/261 ,  G01F23/263

    摘要： The detecting system comprises a detecting circuit (1) made up of a transistor (T1) in current generator configuration, connected in series with a resistance (Rs) and a capacitor (13) of known capacitance (Cx), the resistance Rs representing the resistivity of the liquid existing between two electrodes (5, 6) plunged into the liquid. Thanks to the presence of the capacitor (13), it is possible to detect the liquid level in relation to the integral of the current that charges the capacitor (13), resistance Rs being such as to condition the charge time (Tp) of the capacitor (13). Accordingly, the variations in the voltage drop (Vp) on Rs caused by successive charges of the capacitor (13) with a current of time Tp represent corresponding values of the level of the liquid.

    摘要翻译： 检测系统包括由电流发生器配置的晶体管（T 1）和与电容（Rs）和已知电容（Cx）的电容器（13）串联连接的检测电路（1），电阻Rs表示 存在于两个电极（5,6）之间的液体的电阻率下降到液体中。 由于电容器（13）的存在，可以检测相对于对电容器（13）充电的电流的积分的液位，电阻Rs用于调节电容器（13）的充电时间（Tp） 电容器（13）。 因此，由电容器（13）的连续电荷引起的Rs上的电压降（Vp）随时间Tp的变化表示液体水平的相应值。

    Refillable ink jet printing module
    9.
    发明授权
    Refillable ink jet printing module 失效
    可补充喷墨打印模块

    公开(公告)号：US5555007A

    公开(公告)日：1996-09-10

    申请号：US301015

    申请日：1994-09-06

    申请人： Danilo Ceschin ,  Rinaldo Ferrarotti ,  Roberto Morandotti ,  Alessandro Scardovi

    发明人： Danilo Ceschin ,  Rinaldo Ferrarotti ,  Roberto Morandotti ,  Alessandro Scardovi

    IPC分类号： B41J2/175

    CPC分类号： B41J2/17513 ,  B41J2/17506

    摘要： A thermal ink jet printing module, of the type that can be removably mounted on the carriage of a printer, comprises a reservoir for the ink and a thermal ink jet printing head fixed to and communicating with the reservoir, and a housing integral with the reservoir for receiving an ink refill cartridge for supplying the spent module with fresh ink by means of a transfer element integral with the housing of the cartridge. Successive refilling of the printing module exploits the working life of the head to the utmost and reduces the waste of expensive materials. The reservoir can be refilled relatively easily, even when the user is travelling.

    摘要翻译： 一种能够可移除地安装在打印机的托架上的热喷墨打印模块包括用于墨水的储存器和固定到储存器并与储存器连通的热喷墨打印头，以及与储存器一体的壳体 用于接收用于通过与盒的壳体一体化的传送元件向废弃的模块供应新鲜墨水的墨水补充盒。 打印模块的连续重新灌装最大限度地利用了头部的使用寿命，并减少了昂贵材料的浪费。 储存器可以相对容易地重新填充，即使当用户行进时也是如此。

    Control system for ink jet printing element
    10.
    发明授权
    Control system for ink jet printing element 失效
    喷墨打印元件控制系统

    公开(公告)号：US4498089A

    公开(公告)日：1985-02-05

    申请号：US514304

    申请日：1983-07-15

    申请人： Alessandro Scardovi

    发明人： Alessandro Scardovi

    IPC分类号： B41J2/045 ,  B41J2/055 ,  G01D15/16

    CPC分类号： B41J2/04516 ,  B41J2/04541 ,  B41J2/04581

    摘要： The control system is applied to an ink jet head in which the individual drops of ink are expelled from a container by way of a nozzle by the effect of contractions of a piezoelectric transducer applied to the container. The transducer is included in an oscillatory circuit which is normally connected to a dc voltage source. A pulse generator acts on a switch to generate a voltage wave in the oscillatory circuit of the transducer and interrupts the pulse when the current in the oscillatory circuit goes to zero, whereby a single voltage wave with a low harmonics content is generated. The oscillatory circuit is so designed that the frequency spectrum created by the voltage wave drops rapidly with frequencies higher than the resonance frequency of the oscillatory circuit and has at least one node close to the resonance frequency at the lowest nodal diameter mode of vibration of the meniscus.

    摘要翻译： 控制系统应用于喷墨头，其中通过施加到容器上的压电换能器的收缩效应，通过喷嘴将各个墨滴从容器中排出。 传感器包括在正常连接到直流电压源的振荡电路中。 脉冲发生器作用在开关上以在振荡电路的振荡电路中产生电压波，并且当振荡电路中的电流变为零时中断脉冲，由此产生具有低谐波含量的单个电压波。 振荡电路被设计成使得由电压波产生的频谱以高于振荡电路的谐振频率的频率快速下降，并且在弯月面的最低节点直径振动模式下具有接近谐振频率的至少一个节点 。