发明授权
US5253960A Cable attachable device to monitor roof loads or provide a yieldable
support or a rigid roof support fixture
失效
电缆连接装置，用于监测车顶负载或提供可屈服的支撑或刚性屋顶支撑固定装置
- 专利标题： Cable attachable device to monitor roof loads or provide a yieldable support or a rigid roof support fixture
- 专利标题（中）： 电缆连接装置，用于监测车顶负载或提供可屈服的支撑或刚性屋顶支撑固定装置
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申请号： US926996申请日： 1992-08-10
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公开(公告)号： US5253960A公开(公告)日： 1993-10-19
- 发明人: James J. Scott
- 申请人： James J. Scott
- 专利权人： Scott James J
- 当前专利权人： Scott James J
- 主分类号： E21D21/00
- IPC分类号： E21D21/00 ; E21D21/02
摘要：
A cable attachment assembly having an anchor mechanism for gripping a tension member anchored in a bore hole in a mine roof, and a roof plate mounted on the anchor mechanism in positions for observing the support being offered to the mine roof, or the yielding response of the roof plate on the anchor mechanism, or for monitoring the load-yield relationship of the anchor mechanism relative to the tension member.
公开/授权文献
- USD311210S Combined palette and holder therefor 公开/授权日：1990-10-09
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