公开(公告)号：US11105199B2

公开(公告)日：2021-08-31

申请号：US17016445

申请日：2020-09-10

申请人： Square Cut Systems, LLC

发明人： Frank M. Locotos ,  David J. Nardo

IPC分类号： E21D21/00

摘要： A cuttable, sinkable mining bolt system for use in supporting the sidewall or rib in a coal mine. A bearing plate has a plurality of hollow cores defined transaxially therein and a central hole defined axially therethrough, the bearing plate made of modified recycled, rigid PVC compound. A fiberglass bolt is adapted to be inserted through the central hole of bearing plate. Bolt is one-piece consisting of glass fiber reinforced plastic. Head component includes a square head and integral, beveled washer for self-centering in the bearing plate as rod component is driven into rib. Bearing plates are adapted to sink into a refuse stream. Hollow cores of bearing plate reduce the material and thus the weight and expense of the bearing plate while still allowing the bearing plates to sink. Optionally, rod components can be inserted transaxially through the hollow cores to increase the strength and coverage of the system.

公开(公告)号：US11408284B2

公开(公告)日：2022-08-09

申请号：US17392304

申请日：2021-08-03

申请人： Square Cut Systems, LLC

发明人： Frank M. Locotos ,  David J. Nardo

IPC分类号： E21D21/00

摘要： A mining bolt system to anchor mining roofs. A bearing plate has a top bearing surface, a bottom bearing surface and a central hole. An L-shaped angle bracket having an upstanding portion and an upper portion has further defined therein a pair of bracket holes. A bolt including a rod portion and a bolt head passes through the central hole and into a mine roof. A threaded staff is then adapted to pass through one of the bracket holes underneath the bottom bearing surface, wherein, in combination, the bearing plate, angle bracket and threaded staff can be tensioned to provide a lifting force against the mine roof.

公开(公告)号：US20210381376A1

公开(公告)日：2021-12-09

申请号：US17392304

申请日：2021-08-03

申请人： Square Cut Systems, LLC

发明人： Frank M. Locotos ,  David J. Nardo

IPC分类号： E21D21/00

摘要： A mining bolt system to anchor mining roofs. A bearing plate has a top bearing surface, a bottom bearing surface and a central hole. An L-shaped angle bracket having an upstanding portion and an upper portion has further defined therein a pair of bracket holes. A bolt including a rod portion and a bolt head passes through the central hole and into a mine roof. A threaded staff is then adapted to pass through one of the bracket holes underneath the bottom bearing surface, wherein, in combination, the bearing plate, angle bracket and threaded staff can be tensioned to provide a lifting force against the mine roof.

公开(公告)号：US20210071526A1

公开(公告)日：2021-03-11

申请号：US17016445

申请日：2020-09-10

申请人： Square Cut Systems, LLC

发明人： Frank M. Locotos ,  David J. Nardo

IPC分类号： E21D21/00

摘要： A cuttable, sinkable mining bolt system for use in supporting the sidewall or rib in a coal mine. A bearing plate has a plurality of hollow cores defined transaxially therein and a central hole defined axially therethrough, the bearing plate made of modified recycled, rigid PVC compound. A fiberglass bolt is adapted to be inserted through the central hole of bearing plate.
Bolt is one-piece consisting of glass fiber reinforced plastic. Head component includes a square head and integral, beveled washer for self-centering in the bearing plate as rod component is driven into rib. Bearing plates are adapted to sink into a refuse stream. Hollow cores of bearing plate reduce the material and thus the weight and expense of the bearing plate while still allowing the bearing plates to sink. Optionally, rod components can be inserted transaxially through the hollow cores to increase the strength and coverage of the system.