Rotatable cutting bit

Details Rotatable cutting bit Rotatable cutting bit

1987-04-17

1988-05-10

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

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

299 91, F21C 2512

Patent

active

047430699

ABSTRACT:
A cutter bit includes an elastomeric end cap compressibly held in a base of a bit holder whereby forward movement of the bit in an axial direction is restricted but the bit is free to rotate.

REFERENCES:
patent: 3397012 (1968-08-01), Krekeler
patent: 3663063 (1972-05-01), Johnmeyer, Sr.
patent: 4149753 (1979-04-01), Stoltz et al.
patent: 4484783 (1984-11-01), Emmerich
patent: 4497520 (1985-02-01), Ojanen

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