公开(公告)号：US20200277857A1

公开(公告)日：2020-09-03

申请号：US16765471

申请日：2018-11-13

申请人： Peter Bryce Catoi

发明人： Peter Bryce Catoi

IPC分类号： E21D21/00

摘要： A rock bolt (10) to be received in a drilled hole comprising a threaded shaft (12) and a sleeve (14) into which the shaft (12) is received. A plurality of openings (38) are provided along the length of the sleeve (14) and clamping assemblies (16) each having clamp members (36) are provided adjacent each opening (38). Wedge members (26) are located adjacent each of the clamp members (36) and the wedge members (26) each include a threaded bore for receiving the shaft (12) such that rotation of the shaft (12) moves the wedge members (26) into engagement with the clamp members (36) to move the clamp members (36) outwardly through the openings (38) to engage with an inner surface of the hole.

公开(公告)号：US11220906B2

公开(公告)日：2022-01-11

申请号：US16765471

申请日：2018-11-13

申请人： Peter Bryce Catoi

发明人： Peter Bryce Catoi

IPC分类号： E21D21/00

摘要： A rock bolt (10) to be received in a drilled hole comprising a threaded shaft (12) and a sleeve (14) into which the shaft (12) is received. A plurality of openings (38) are provided along the length of the sleeve (14) and clamping assemblies (16) each having clamp members (36) are provided adjacent each opening (38). Wedge members (26) are located adjacent each of the clamp members (36) and the wedge members (26) each include a threaded bore for receiving the shaft (12) such that rotation of the shaft (12) moves the wedge members (26) into engagement with the clamp members (36) to move the clamp members (36) outwardly through the openings (38) to engage with an inner surface of the hole.