Miner cutting bit holding apparatus

Details Miner cutting bit holding apparatus Miner cutting bit holding apparatus

1989-06-15

1990-07-31

Neuder, William P.

Mining or in situ disintegration of hard material

Miscellaneous

299 93, E21B 3518

Patent

active

049445600

ABSTRACT:
A bit shoulder for attachment of a mining cutting bit to a driven element is provided. The bit holder includes a base member which may be attached to the driven element. The bit holder is provided with a forward body member having forward and rearward surfaces and a bore for receiving therethrough the extended shank of a cutting bit. A rearward member is also attached to the base member and includes an anvil portion having an anvil surface spaced from and facing the rearward surface. A reinforcement member is provided between the rearward member and the rearward surface to rigidify the bit holder.

REFERENCES:
patent: 4275929 (1981-06-01), Krekeler
patent: 4693518 (1987-09-01), Sulosky et al.
patent: 4828327 (1989-05-01), Wechner

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