Patents Assigned to R.F.I. Inc.
  • Apparatus for injecting fluids into aggregates
    Patent number: 4326560
    Abstract: There is disclosed an apparatus for injecting fluids into flowing aggregates such as injecting water into a traveling dry cementitious mix in which a substantially annular fluid slot surrounds the flow path for the aggregate to establish an inwardly moving sheet of fluid to impinge on the aggregate.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: April 27, 1982
    Assignee: R.F.I. Inc.
    Inventor: William A. Drudy