Truss shoe for a mine roof and method

Details Truss shoe for a mine roof and method Truss shoe for a mine roof and method

2006-10-10

2006-10-10

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

C405S302100, C405S302200

Reexamination Certificate

active

07118310

ABSTRACT:
A truss shoe for use on a mine roof truss having at least one inclined bolt and at least one horizontal cross member comprises a base including a first end, a second end, a first side and a second side extending between the first and second ends, a generally planar bearing surface, and a top side disposed opposite the bearing surface, the bearing surface arranged for contact with the mine roof. A stanchion is formed on the top side and includes a bore extending from a top end of the stanchion through the bearing surface, the bore sized to receive the inclined bolt. A bracket is formed on the top side and includes a laterally extending slotted bore sized to receive the horizontal bolt. A portion of the first end and a portion of the first side cooperate to form a curved edge.

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patent: 5026217 (1991-06-01), Seegmiller
patent: 5176473 (1993-01-01), Seegmiller
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patent: 6884005 (2005-04-01), Seegmiller
patent: 2313933 (2001-01-01), None

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