Patents Represented by Attorney R. J. Palkowski

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  • Cutter bit assembly
    Patent number: 4415208
    Abstract: A cutter bit assembly having an elongated cutter bit, a bit holder, a bit block and a locking means for removably affixing the bit holder to the bit block. The bit holder has a tapered locking lip and a tapered surface wherein a resultant cutting force provides a locking action between the tapers.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: November 15, 1983
    Assignee: Ingersoll-Rand Company
    Inventor: Wynand M. Goyarts