Mine tool roof bit insert
AssigneeGTE Valenite Corporation
InventorWayne F. Adams
Life of this patent
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Abstract
A mine tool roof bit insert has two flat parallel sides extending in the long dimension of the insert and has two uppermost slanted surfaces extending between the two flat parallel sides. There is a trough at the top of the insert, which is between the two uppermost slanted surfaces and which is substantially orthogonal to the two flat parallel sides.
Claims5
A mine tool roof bit insert having two flat parallel sides extending in the long dimension of the insert and having two uppermost slanted surfaces extending between said two flat parallel sides, the insert having a trough at the top thereof, the trough and the two uppermost slanted surfaces being substantially parallel and substantially orthogonal along their entire length to the two flat parallel sides, the trough being between the two uppermost slanted surfaces.
Dependencies are inferred from the claim text.