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US 4,637,658 AGranted
Cutters for use in mineral mining
OwnerWolfgang Annipajo, Oswald Breuer +1inventors
InventorsWolfgang Annipajo, Oswald Breuer, Christoph Rassmann
Life of this patent
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Abstract
A floor cutter bit for a coal plough has a body carrying a pair of hard metal plates which define a coal face cutting edge and a floor cutting edge. A hard metal pin locates between the plates and receives end zones of the plates within recesses.
Claims6
A cutter for use with mineral mining machines;
- said cutter having a body, a pair of hard metal plates mounted to the body, the hard metal plates providing first and second cutting edges disposed exteriorly of the body, the first and second cutting edges lying in first and second planes, respectively, which are inclined to one another and intersect at a corner junction, a hard metal pin mounted to the body at the corner junction between said hard metal plates;
- wherein the pin merges smoothly with the cutting edges and is provided with circumferential recesses which receive and support adjacent end zones of the plates.
Dependencies are inferred from the claim text.