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    Droplet ejection device
    5.
    发明申请
    Droplet ejection device 审中-公开

    公开(公告)号：US20050248635A1

    公开(公告)日：2005-11-10

    申请号：US11113645

    申请日：2005-04-25

    申请人： Robert Hasenbein ,  Paul Hoisington ,  Andreas Bibl

    发明人： Robert Hasenbein ,  Paul Hoisington ,  Andreas Bibl

    IPC分类号： B41J2/14 ,  B41J2/175

    CPC分类号： B41J2/14201 ,  B41J2002/14306 ,  B41J2002/14403 ,  B41J2202/11

    摘要： A fluid droplet ejection device including a body defining a plurality of fluid paths that each include an inlet including a flow restriction, a pumping chamber, and a nozzle opening communicating with the pumping chamber for discharging fluid droplets. An actuator is associated with each pumping chamber. The pumping chamber has a largest dimension that is sufficiently short and the flow restriction provides sufficient flow resistance so as to provide a fluid droplet velocity and/or volume versus frequency response that varies by less than plus or minus 25% over a droplet frequency range of 0 to 40 kHz. Also disclosed are fluid droplet ejection devices in which the ratio of the inlet flow resistance to the pumping chamber flow impedance is between 0.05 and 0.9, the pumping chamber has a time constant for decay of a pressure wave in the pumping chamber that is less than 25 microseconds.

    Non-wetting coating on a fluid ejector
    10.
    发明申请
    Non-wetting coating on a fluid ejector 有权
    流体喷射器上的非润湿涂层

    公开(公告)号：US20070030306A1

    公开(公告)日：2007-02-08

    申请号：US11479152

    申请日：2006-06-30

    申请人： Yoshimasa Okamura ,  Jeffrey Birkmeyer ,  John Higginson ,  Gregory Debrabander ,  Paul Hoisington ,  Andreas Bibl

    发明人： Yoshimasa Okamura ,  Jeffrey Birkmeyer ,  John Higginson ,  Gregory Debrabander ,  Paul Hoisington ,  Andreas Bibl

    IPC分类号： B41J2/135

    CPC分类号： B41J2/1606 ,  B41J2/1433 ,  B82Y30/00

    摘要： A fluid ejector having an inner surface, an outer surface, and an orifice that allows fluid in contact with the inner surface to be ejected. The fluid ejector has a non-wetting monolayer covering at least a portion of the outer surface of the fluid ejector and surrounding an orifice in the fluid ejector. Fabrication of the non-wetting monolayer can include removing a non-wetting monolayer from a second region of a fluid ejector while leaving the non-wetting monolayer on a first region surrounding an orifice in the fluid ejector, or protecting a second region of a fluid ejector from having a non-wetting monolayer formed thereon, wherein the second region does not include a first region surrounding the orifice in the fluid ejector.

    摘要翻译： 具有允许流体与内表面接触的内表面，外表面和孔的流体喷射器被喷射。 流体喷射器具有覆盖流体喷射器的外表面的至少一部分并且围绕流体喷射器中的孔的非润湿单层。 非润湿单层的制造可以包括从流体喷射器的第二区域去除非润湿单层，同时将非润湿单层留在围绕流体喷射器中的孔口的第一区域上，或保护流体的第二区域 喷射器具有在其上形成的非润湿单层，其中第二区域不包括围绕流体喷射器中的孔口的第一区域。