Patents Assigned to Burrell Construction & Supply Co.
  • Method for making a concrete block
    Patent number: 4393018
    Abstract: A method for making metal fiber reinforced concrete block which comprises formimg a mix of aggregates to which metal fibers and the cement are added. Water is added to the mix to form a mixture which is poured into a mold having two parallel spaced apart surfaces. A stripper is advanced through the mold and frictionally engages the inner surfaces of the two parallel walls and removes the concrete block.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: July 12, 1983
    Assignee: Burrell Construction & Supply Co.
    Inventors: William L. Harbaugh, Raymond S. Smetana