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US 4,543,750 AGranted
Apparatus for refinishing a pelletizing die
OwnerLeo Froelichinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for refinishing a pellet-making die includes a revolvable turntable upon which the pellet-making die is positioned. A vertically shiftable grinder mechanism having a grinder stone engages the inner surface of the die and makes successive vertical strokes across the surface to be refinished. An acme threaded screw actuator controls the depth of cut made by the grinder mechanism.
Claims5
An apparatus for refinishing the inner cylindrical face of a cylindrical pellet-making die having a plurality of openings therethrough, comprising:
- a support base,
- a turntable revolvably mounted on said base for rotation relative thereto, means operatively connected with said turntable for rotating the same about a vertical axis, said turntable supporting thereon a pellet-making die so that the axis of the die is vertically disposed,
- a vertically disposed pedestal mounted on said base and projecting upwardly therefrom and being horizontally movable relative thereto, means on said base operatively connected with said pedestal for shifting the latter in a rectilinear horizontal path of movement towards and away from said turntable,
- a power driven grinder mechanism mounted on said pedestal and being vertically shiftable relative thereto, said grinder mechanism including the horizontally oriented grinding stone revolvable about the vertical axis, means operatively connected with said grinding stone for revolving the same,
- means on said pedestal operatively connected with said grinder mechanism for shifting the same vertically in opposite directions whereby, when said grinding stone is disposed in engaging relation with the inner surface of the pellet-making die revolvably supported on said turntable and said grinder mechanism is alternately moved vertically in opposite directions, the inner surface of the die will be refinished.
2 more elements
Dependencies are inferred from the claim text.