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US 5,333,938 AGranted
Cutter bit
AssigneeCaterpillar Inc.
InventorPreston L. Gale
Life of this patent
Estimating the term…
Abstract
A cutter bit having a concave face surface has a base surface spaced from the concave face surface and a recess extending inwardly from the base surface, The recess is adapted to receive a portion of a tool holder that extends at least partially into the recess, A bearing member is interposed the body of the cutter bit and the portion of the tool holder disposed in the recess.
Claims3
A cutter bit rotatably mountable on a tool holder, comprising:
- a body having a concave face surface and a base surface spaced from said face surface, said body being rotatable about a centrically disposed axis extending through the body normal to said face and base surfaces;
- an internal wall surface concentrically disposed about said axis and extending inwardly from said base surface towards said face surface, said internal wall surface defining a recess in said body;
- and
- bearing means interposed said internal wall surface and said tool holder in coaxial alignment with said body axis.
1 more element
Dependencies are inferred from the claim text.