Impact Patents (Class 30/277)
  • Cast iron pipe cutter
    Patent number: 3958329
    Abstract: A tool for cutting cast-iron pipe is disclosed which includes inner and outer rings disposed annularly with respect to each other, a plurality of spring biased cutting pins reciprocally disposed in the inner ring, a plurality of cams disposed around the inner periphery of the outer ring and a motor mechanism for driving the rings relative to each other.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: May 25, 1976
    Inventor: Philip W. Mundy