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Class Information
Number: 405/302.1
Name: Hydraulic and earth engineering > Earth treatment or control > Shoring, bracing, or cave-in prevention > Roof support > Subterranean roof plate
Description: Subject matter comprising a plate, intended to be used in conjunction with a bolt, for supporting an overhead earthen formation (e.g., tunnel).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7296950 |
Point anchor coated mine roof bolt |
Nov. 20, 2007 |
| 7284933 |
Square embossed roof and rib plate |
Oct. 23, 2007 |
| 7270501 |
Expandable rock bolt and rock bolting system |
Sep. 18, 2007 |
| 7261494 |
Truss shoe |
Aug. 28, 2007 |
| 7179020 |
Mine roof bolt anchoring system and method |
Feb. 20, 2007 |
| 7147404 |
Elongate element tensioning member |
Dec. 12, 2006 |
| 7118310 |
Truss shoe for a mine roof and method |
Oct. 10, 2006 |
| 7073982 |
Point anchor coated mine roof bolt |
Jul. 11, 2006 |
| 7044688 |
Roof bolts for use in mines, a method for their production and method for their installation |
May. 16, 2006 |
| 7001109 |
Apparatus for ground support |
Feb. 21, 2006 |
| 6994496 |
Roof bolts for use in mines, a method for their production and a method for their installation |
Feb. 7, 2006 |
| 6986623 |
Method and apparatus for anchoring a mine roof bolt |
Jan. 17, 2006 |
| 6957931 |
Roof bolt bearing plate and method for an underground mine |
Oct. 25, 2005 |
| 6921232 |
Mine roof-support truss |
Jul. 26, 2005 |
| 6884005 |
Roof support truss |
Apr. 26, 2005 |
| 6793445 |
Method and apparatus for insertion of rock bolts |
Sep. 21, 2004 |
| 6648557 |
Drilling apparatus and method for single pass bolting |
Nov. 18, 2003 |
| 6536990 |
Device for the mutual support of two construction members |
Mar. 25, 2003 |
| 6474910 |
Rockbolt assembly |
Nov. 5, 2002 |
| 6457909 |
Multi-purpose anchor bolt assembly |
Oct. 1, 2002 |
| 6146056 |
Channel and bearing plate assembly |
Nov. 14, 2000 |
| 6004077 |
System for securement of a mesh screening means and method of installation |
Dec. 21, 1999 |
| 5954456 |
Torque nut for mine roof bolt assembly |
Sep. 21, 1999 |
| 5934855 |
Large-area washer |
Aug. 10, 1999 |
| 5885034 |
Washer for use in mining |
Mar. 23, 1999 |
| RE35902 |
Bearing plate |
Sep. 22, 1998 |
| 5803693 |
Swiveling roofing washer |
Sep. 8, 1998 |
| 5791828 |
Plate for use in support of a mine roof |
Aug. 11, 1998 |
| 5769570 |
Cable tensioning dome plate |
Jun. 23, 1998 |
| 5743678 |
Anchor eye-bolt for mine roof |
Apr. 28, 1998 |
| 5628587 |
Bearer plate |
May. 13, 1997 |
| 5547317 |
Mine support system |
Aug. 20, 1996 |
| 5505562 |
Mechanical truss wrench |
Apr. 9, 1996 |
| 5417521 |
Multiple cable rock anchor system |
May. 23, 1995 |
| 5415498 |
Mine roof support systems and components |
May. 16, 1995 |
| 5385433 |
Bearing plate |
Jan. 31, 1995 |
| 5314268 |
Non-metallic reinforcing rod and method of use in supporting a rock formation |
May. 24, 1994 |
| 5292209 |
Bearing plate |
Mar. 8, 1994 |
| 5288178 |
Preload headboard for an elongate prop |
Feb. 22, 1994 |
| 5222837 |
Mine roof channel clamp |
Jun. 29, 1993 |
| 5192146 |
Open seam friction rock stabilizer |
Mar. 9, 1993 |
| 5018907 |
Mine roof system |
May. 28, 1991 |
| 4954018 |
Yield tube bolt assembly |
Sep. 4, 1990 |
| 4946315 |
Mine roof system |
Aug. 7, 1990 |
| 4708559 |
Reinforcing washer for a mine roof bolt assembly |
Nov. 24, 1987 |
| 4652178 |
Mine roof plate |
Mar. 24, 1987 |
| 4589803 |
Method and apparatus for installing mine roof supports |
May. 20, 1986 |
| 4518282 |
Mine roof bearing plate with embossed area having conical and cylindrical sections |
May. 21, 1985 |
| 4507020 |
Mine roof bearing plate |
Mar. 26, 1985 |
| 4498816 |
Mine roof support system |
Feb. 12, 1985 |
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