Roller cutter

Details Roller cutter Roller cutter

1979-11-26

1981-12-08

Pate, III, William F.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Tooth mounted on helical head portion or head with helical...

299 25, 175377, E21C 2710

Patent

active

043044409

ABSTRACT:
A roller cutter especially adapted to fracture permafrost material includes a plurality of cutter teeth integrally formed with, and extending radially outwardly from the outer surface of a rotor. The rotor is antifrictionally supported on a stator to enable it to rotate about it along its longitudinal axis. The cutter teeth are arranged about the circumference of the rotor in a plurality of rings, with the rings uniformly spaced along the length of the rotor. The rings of teeth are progressively rotated relative to each other so that corresponding teeth of adjacent rows are staggered with respect to each other. However, the teeth of the rows at each end of the rotor are aligned along the rotor length.

REFERENCES:
patent: 1856627 (1932-05-01), Fletcher
patent: 2244617 (1941-06-01), Hannum
patent: 3393014 (1968-07-01), Ascher, Jr.
patent: 3726350 (1973-04-01), Pessier
patent: 3860292 (1975-01-01), Bechem
patent: 3967854 (1976-07-01), Posciri

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