Rotatable cutting bit for a mining machine

Details Rotatable cutting bit for a mining machine Rotatable cutting bit for a mining machine

1987-10-01

1988-08-23

Massie, IV, Jerome

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

175393, E21C 3522

Patent

active

047656867

ABSTRACT:
In a rotatable cutting bit of the type for delivering water under pressure to the work area being cut, the head portion includes an annular recess including a plurality of outlet ports facing forwardly and protected from the rearward flow of material being cut.

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patent: 4456306 (1984-06-01), Wrulich
patent: 4488758 (1984-12-01), Clemmow et al.
patent: 4497520 (1985-02-01), Ojanen
patent: 4573744 (1986-03-01), Clemmow
patent: 4583786 (1986-04-01), Thorpe et al.
patent: 4664450 (1987-05-01), Radford

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