Push-on gripper plate for use with rock bolts
First Claim
1. A push-on gripper plate for use in securement of a mesh screening means on the protruding, threaded, end portion of a rock bolt inserted into a rock face, said gripper plate comprising:
- a generally planar base portion adapted to overlie the mesh screening means;
a central opening in the base portion having two or more leg portions positioned on the perimeter of said opening and inclined downwardly, inwardly toward the centre of said opening below the plane of the base portion;
a plurality of tab portions positioned on the perimeter of said opening in alternating arrangement with said leg portions, the tab portions being inclined downwardly, inwardly toward the centre of said opening below the plane defined by the base portion;
wherein the leg portions are dimensioned and otherwise adapted to frictionally engage therebetween the threaded end of the rock bolt to hold the gripper plate on the end of the rock bolt over the mesh screening means.
2 Assignments
0 Petitions
Accused Products
Abstract
A push-on gripper plate for use in securement of a mesh screening means on the protruding, threaded, end portion of a rock bolt inserted into a rock face is disclosed. The gripper plate has a generally planar base portion adapted to overlie the mesh screening means and a central opening in the base portion having two or more leg portions positioned on the perimeter of the opening and inclined upwardly, inwardly toward the center of said opening above the plane of the base portion. A plurality of tab portions are positioned on the perimeter of said opening in alternating arrangement with said leg portions, the tab portions being inclined upwardly, inwardly toward the center of the central opening above the plane defined by the base portion.
33 Citations
11 Claims
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1. A push-on gripper plate for use in securement of a mesh screening means on the protruding, threaded, end portion of a rock bolt inserted into a rock face, said gripper plate comprising:
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a generally planar base portion adapted to overlie the mesh screening means; a central opening in the base portion having two or more leg portions positioned on the perimeter of said opening and inclined downwardly, inwardly toward the centre of said opening below the plane of the base portion; a plurality of tab portions positioned on the perimeter of said opening in alternating arrangement with said leg portions, the tab portions being inclined downwardly, inwardly toward the centre of said opening below the plane defined by the base portion; wherein the leg portions are dimensioned and otherwise adapted to frictionally engage therebetween the threaded end of the rock bolt to hold the gripper plate on the end of the rock bolt over the mesh screening means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification