Patent ID: 7172145

Claim:
In combination A. A concrete ingredient transport and ingredient mixing truck including: separate compartment defining structure defining separate chambers in the truck, each chamber having a discharge port opening for a separate concrete ingredient contained therein; a conveyor system means including a drive means for conducting a discharge flow of the ingredients from the separate chamber discharge ports to a common discharge and confluence zone of the discharge flows, and a discharge trough having two opposite ends, a collection portion at one of its ends positioned, when in use, below the confluence zone, and a concrete ingredient discharge portion at its other end positioned, when in use, below the collection portion, and moving and mixing means in the trough between the ends to travel the concrete ingredients under the influence of gravity between the ends and to mix the concrete ingredients including water when moving between the ends, and B. an apparatus including a housing having a chopping chamber with a lower portion having an an output port in the lower portion of the chopping chamber, fiber strand spool supporting means on the housing having a smoothly rimmed opening into the chopping chamber, filament drawing, chopping and ejecting means in the chopping chamber to draw strand from the spool through the smoothly rimmed opening into the chopping chamber, to chop short reinforcing lengths from the strand, and to eject the chopped lengths toward and though the chopping chamber output port, pneumatic drive means having an input port and an output port in the housing to drive the fiber drawing, chopping and ejecting means, said drive means including conducting means connecting the output port of the drive means to direct exhaust discharge from the drive means into the chopping chamber and onto the drawing, chopping and ejecting means, and means mounting and apparatus positioning means on the housing to mount and position the apparatus on the truck with the chopping chamber outport port above the discharge zone to introduce and mix short chopped reinforcing filament lengths with the concrete ingredient flows between the trough ends.