Push-on gripper plate for use with rock bolts

Details Push-on gripper plate for use with rock bolts Push-on gripper plate for use with rock bolts

1991-10-30

1993-05-04

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405288, 411533, E21D 1100, E21D 2100

Patent

active

052075354

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.

REFERENCES:
patent: 2342910 (1944-02-01), Tinnerman
patent: 4740111 (1988-04-01), Gagnon
patent: 4784418 (1988-11-01), Pearson et al.
patent: 4911594 (1990-03-01), Fisher

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