Invention Grant
- Patent Title: System and method for mine roof counter bore and cable bolt head securement therein
- Patent Title (中): 矿山台面孔及电缆螺栓头固定系统及方法
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Application No.: US11500173Application Date: 2006-08-07
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Publication No.: US08596923B2Publication Date: 2013-12-03
- Inventor: John G. Oldsen , John C. Stankus , Demrey G. Brandon , Joey B. Blankenship
- Applicant: John G. Oldsen , John C. Stankus , Demrey G. Brandon , Joey B. Blankenship
- Applicant Address: US PA Pittsburgh
- Assignee: FCI Holdings Delaware, Inc.
- Current Assignee: FCI Holdings Delaware, Inc.
- Current Assignee Address: US PA Pittsburgh
- Agency: The Webb Law Firm
- Main IPC: E21D20/00
- IPC: E21D20/00

Abstract:
A mine roof support includes a substantially dome-shaped plate including a curved portion having a first side and a second side. The mine roof support includes a drive end such as a barrel and wedge assembly, a nut or a forged head. The first side of the plate is adapted to mate with a recess defined in a mine roof. A top portion of the drive head may be contoured to substantially match the contour of the second side of the plate. A drill bit tool used to create the recess includes a first drill bit situated at one end of the drill bit tool and a second drill bit situated near an opposite end of the drill bit tool, wherein the drill bit tool is adapted to drill a bore hole and the recess. A method for supporting the mine roof utilizes the mine roof support.
Public/Granted literature
- US20070036617A1 System and method for mine roof counter bore and cable bolt head securement therein Public/Granted day:2007-02-15
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