发明授权
- 专利标题： Composite coil spring
- 专利标题（中）： 复合螺旋弹簧
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申请号： US452311申请日： 1982-12-22
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公开(公告)号： US4765602A公开(公告)日： 1988-08-23
- 发明人: William G. Roeseler
- 申请人： William G. Roeseler
- 申请人地址： WA Seattle
- 专利权人： The Boeing Company
- 当前专利权人： The Boeing Company
- 当前专利权人地址： WA Seattle
- 主分类号： B29C70/08
- IPC分类号： B29C70/08 ; B29C70/20 ; F16F1/366 ; F16F1/36
摘要：
A helical torsion spring (10) composed of unidirectional graphite fibers (26) encased in an epoxy resin matrix of rectangular cross section. The graphite fibers are longitudinally oriented relative to the core of the coil spring and can be located adjacent the inner and outer surfaces of each of the coils.
公开/授权文献
- USD321391S Leg curl physical exerciser 公开/授权日：1991-11-05
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