Cutter with cutter holder for disintegrating of material, partic

Details Cutter with cutter holder for disintegrating of material, partic Cutter with cutter holder for disintegrating of material, partic

1989-11-28

1980-09-16

Leppink, James A.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175413, 407 54, E21B 900

Patent

active

042224462

ABSTRACT:
A cutter element having a peripheral working surface and a frontal face, defining therebetween a cutting edge. The working surface of a cutter element is formed in the shape of a solid of rotation generated about a longitudinal axis. The axial section of the working surface forms with a plane passing through its cutting edge and perpendicular to the longitudinal axis, an angle selectable within 40.degree. to 120.degree.. The cutter element is provided with a shaft, which is supported for rotation around the longitudinal axis in a holder adapted to be mounted on a heading or combine tool.

REFERENCES:
patent: 336566 (1886-02-01), Happersberger
patent: 1676887 (1928-07-01), Chamberlin
patent: 2833520 (1958-05-01), Owen
patent: 3548476 (1970-12-01), Laue et al.
patent: 3692127 (1972-09-01), Hampe et al.
patent: 3863316 (1975-02-01), Yeo

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