Impact kerfing rock cutter and method

Details Impact kerfing rock cutter and method Impact kerfing rock cutter and method

1990-09-28

1991-07-02

Britts, Ramon S.

Mining or in situ disintegration of hard material

Processes

125 40, 173142, 175414, 299 69, 299 94, E21B 1036, E21C 2502

Patent

active

050280929

ABSTRACT:
A low velocity, high mass ram is connected to the cutting tool. The cutting tool has an array of impact forward and side buttons or bars which form chip-forming spaces there between. The side buttons or bars advantageously cut a gage in the slot. A method of slot kerfing which cuts the kerf on an angle.

REFERENCES:
patent: 1891222 (1932-12-01), Cornett
patent: 1995062 (1935-03-01), Gray
patent: 3570613 (1971-03-01), Coski
patent: 3589456 (1971-06-01), McKain
patent: 3858671 (1975-01-01), Kita et al.
patent: 4206947 (1980-06-01), Bingham
patent: 4332420 (1982-06-01), Coski
patent: 4444434 (1984-04-01), Gurries
patent: 4451093 (1984-05-01), Perez
patent: 4682819 (1987-07-01), Masse
patent: 4783123 (1988-11-01), Ottestad
Air Goblins, Ingersoll-Rand Co., 1972 brochure.
RBH Long-Life Cutter Heads, Ingersoll-Rand, 1974 brochure.

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