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21. 发明授权

US06481204B1 Expansible polymer clamping device 失效
标题翻译：可膨胀聚合物夹紧装置
公开(公告)号：US06481204B1
公开(公告)日：2002-11-19
申请号：US09897846
申请日：2001-07-02
申请人： Thomas D. Yuschak , Edward T. Schneider
发明人： Thomas D. Yuschak , Edward T. Schneider
IPC分类号： F01B2910
CPC分类号： B25B5/065 , B25B5/003 , B25B5/061 , F03G7/06 , F15B21/06
摘要： A clamping device includes an expansible polymer that is disposed in a polymer chamber (14). A heat transfer conduit (22) transports heat transfer fluid and brings it into thermal conductivity with the polymer. By cooling or heating the polymer as needed, the polymer expands and contracts as it melts and freezes, respectively. The volume change of the polymer is used to advance a piston (16). The piston is used to engage upon a surface, e.g., clamp a machine part. In this manner, the surface is disposed between the actuated piston (16) and an immobile plate, causing the surface to become rigidly held in position. When the piston (16) contacts the surface, pressure builds in the polymer chamber(14), which translates into clamping force on the surface.
摘要翻译：夹持装置包括设置在聚合物室（14）中的可膨胀聚合物。传热管道（22）输送传热流体并使其与聚合物导热。通过根据需要冷却或加热聚合物，聚合物在熔融和分解时会膨胀和收缩。聚合物的体积变化用于推进活塞（16）。活塞用于接合表面，例如夹紧机器部件。以这种方式，表面设置在致动活塞（16）和固定板之间，使得表面刚性地保持就位。当活塞（16）接触表面时，聚合物室（14）中形成压力，这转化为表面上的夹紧力。

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