公开(公告)号：US20240125233A1

公开(公告)日：2024-04-18

申请号：US18277919

申请日：2022-02-18

申请人： ROCBOLT TECHNOLOGIES (PTY) LTD.

发明人： Werner BELLINGHAM

IPC分类号： E21D21/02 ,  E21D21/00

CPC分类号： E21D21/02 ,  E21D21/0046

摘要： A rock bolt assembly provides an indication of a coupling. The rock bolt assembly includes two shaft sections, namely inner and outer shaft sections. A coupler is configured to couple the two shaft sections together at proximate ends. An electrical conductor is insulated from the outer shaft section and extends from the dead end of the outer shaft section to the head at the live end of the outer shaft section. An electrical contact arrangement is provided at the dead end of the outer shaft section, configured to electrically interconnect the outer shaft section and the conductor when the inner and outer shaft sections are coupled. Electrical terminals are provided at the head and connected respectively to the outer shaft section and to the conductor, the electrical terminals being electrically interconnected or continuous when the outer shaft section and the conductor are electrically interconnected.