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公开(公告)号：US5626919A
公开(公告)日：1997-05-06
申请号：US884030
申请日：1992-05-18
CPC分类号： B29C67/0066 , B29C41/12 , B29K2995/0073
摘要： A solid imaging apparatus and method produces an integral three-dimensional object from a multiplicity of cross sectional portions of the object by selectively exposing successive layers of a liquid photoformable composition to actinic radiation. The apparatus includes a vessel for containing the composition so as to present a free surface, and a movable platform disposed within the vessel below the free surface. Part of the composition is transferred above the free surface by lowering and raising a dispenser at predetermined positions located away from the platform. A doctor blade contacts the composition transferred above the free surface, and then moves over the platform to form a substantially uniform layer of the composition.
摘要翻译： 固体成像装置和方法通过将液体光可成形组合物的连续层选择性地暴露于光化辐射，从物体的多个横截面部分产生整体的三维物体。 该装置包括用于容纳组合物以便呈现自由表面的容器，以及设置在容器的自由表面下方的活动平台。 通过在位于远离平台的预定位置处降低和升高分配器，将组合物的一部分转移到自由表面上方。 刮刀接触转移到自由表面上方的组合物，然后在平台上移动以形成基本均匀的组合物层。
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公开(公告)号：US06512834B1
公开(公告)日：2003-01-28
申请号：US09348416
申请日：1999-07-07
IPC分类号： H04R2500
CPC分类号： H04R1/086
摘要： A sound-transmissive cover assembly is disclosed which provides protection from the ambient environment to transducer devices, such as microphones, loudspeakers, buzzers, ringers and the like. The cover assembly has a microporous protective membrane that is captivated at the outer region near the edges between two adhesive support systems. An inner unbonded region surrounded by the bonded outer region is provided so that the protective membrane can displace or move in response to acoustic pressure waves. The protective membrane design in conjuction with the configuration allows sound energy to pass through the protective membrane with very low attenuation, while being able to withstand long-term exposure to liquid intrusion. An embodiment of the cover assembly includes an attached acoustic gasket so as to seal and focus acoustic energy to housing apertures or openings.
摘要翻译： 公开了一种声透射盖组件，其提供了从周围环境到诸如麦克风，扬声器，蜂鸣器，振铃器等的换能器设备的保护。 盖组件具有微孔保护膜，其被吸附在两个粘合剂支撑系统之间的边缘附近的外部区域处。 提供由接合的外部区域围绕的内部未连接区域，使得保护膜可以响应于声压波而移位或移动。 结合该配置的保护膜设计允许声能以非常低的衰减穿过保护膜，同时能够承受长期暴露于液体侵入的能量。 盖组件的实施例包括附接的声学垫片，以便将声能密封和聚焦到壳体孔或开口。
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