Patents Assigned to Dean Pihlstrom, Inc.
  • Compressed air foam discharging apparatus
    Patent number: 5096389
    Abstract: The invented foam discharging apparatus includes an engine that uses a drive shaft to drive two fluid pumps. One of the two fluid pumps is directly engaged by the drive shaft. In the preferred embodiment of the invention, one of the fluid pumps is a centrifugal fluid pump that pumps water from a reservoir. The other fluid pump is a rotary screw air compressor.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: March 17, 1992
    Assignee: Dean Pihlstrom, Inc.
    Inventor: Clarence A. Grady