Cutter inserts for picks

Details Cutter inserts for picks Cutter inserts for picks

1983-08-05

1987-07-07

Leppink, James A.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

175410, E21C 3518, E21B 1046

Patent

active

046782370

ABSTRACT:
A stud for use in a mining pick is disclosed which has a tip consisting of a polycrystalline diamond composite and a body having a carrying surface on which the tip is mounted, the carrying surface being inclined to the axis of the body by an angle of between 45.degree. and 65.degree.. In an embodiment of the invention, the stud is received within a pocket and the head of a mining pick, the axis of the pocket in the head axis of the mining pick being substantially coincident, and the mining pick having a shank adapted to be received within the box of a mining machine. The stud may be provided with side extensions adjacent to the composite to protect the material of the mining pick body.

REFERENCES:
patent: 3342532 (1967-03-01), Krekeler
patent: 3807804 (1974-05-01), Kniff
patent: 3841709 (1974-02-01), Kniff
patent: 4140189 (1979-04-01), Garner
patent: 4149753 (1979-03-01), Stoltz et al.
patent: 4200159 (1980-07-01), Peschel et al.
patent: 4303136 (1981-06-01), Ball
patent: 4323130 (1982-04-01), Dennis
patent: 4505342 (1985-03-01), Barr et al.
patent: 4512425 (1985-04-01), Brock
patent: 4512426 (1985-04-01), Bidegaray
Atkins, Brian C., "Drilling Application Successes using STRATAPAX Blank Bits in Mining and Construction", Jan., 1982--General Electric Publication.

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