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    • 4. 发明授权
    • Non-contact liquid material dispenser having a bellows valve assembly and method for ejecting liquid material onto a substrate
    • 具有波纹管阀组件的非接触液体材料分配器和将液体材料喷射到基底上的方法
    • US06267266B1
    • 2001-07-31
    • US09406178
    • 1999-09-24
    • James C. SmithJames W. Messerly
    • James C. SmithJames W. Messerly
    • G01F1100
    • B05C11/1034B05C5/001B05C5/02B05C5/0225B23K1/203B23K2101/42G01F13/006H05K3/1241H05K3/3484H05K3/3489
    • An apparatus for dispensing a small amount of a viscous liquid material onto a substrate, the apparatus comprising a housing and piston positioned within the housing and having a lower surface and a flow bore extending therein, the flow bore having an inlet for receiving the viscous liquid material and an outlet. The apparatus further includes a compressible dispensing element positioned within the housing below and in liquid tight sealing engagement with the lower surface of the piston and having a passage extending therethrough, the passage having an inlet in liquid communication with the outlet of the flow bore and an outlet. The lower surface of the piston is capable of applying a force to compress the dispensing element causing the passage to at least partially close expelling a small amount of the viscous liquid material from the outlet of the passage. The apparatus has a nozzle in liquid communication with the outlet of the passage for guiding the small amount of viscous liquid material expelled from the outlet of the passage onto the substrate.
    • 一种用于将少量粘性液体材料分配到基底上的装置,该装置包括定位在壳体内的壳体和活塞,并具有延伸在其中的下表面和流动孔,该流动孔具有用于接收粘性液体的入口 材料和出口。 该装置还包括可压缩分配元件,其位于壳体内部并且与活塞的下表面液密密封接合并且具有延伸穿过其中的通道,该通道具有与流动孔的出口液体连通的入口和 出口。 活塞的下表面能够施加力以压缩分配元件,使得通道至少部分地紧密地从通道的出口排出少量的粘性液体材料。 该装置具有与通道的出口液体连通的喷嘴,用于将从通道出口排出的少量粘性液体材料引导到基板上。