Manually rotatable tool

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable tooth

Reexamination Certificate

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Details

C299S110000, C299S111000, C299S113000

Reexamination Certificate

active

07992944

ABSTRACT:
A degradation assembly comprises a rotary portion and a stationary portion. The rotary portion includes a cemented metal bolster bonded to a tip. The tip comprises a asymmetric, substantially conically shaped tip formed of diamond and a cemented metal carbide substrate. The stationary portion comprises a holder configured to be coupled to a block mounted to a driving mechanism. A compressible element is disposed between and in mechanical contact with both the rotary portion and the stationary portion.

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