Patent ID: 6579037
Filing Date: 2003-06-17
Classification: E01C

Abstract:
A paver and dowel bar inserter in combination:propelling apparatus on opposite sides of the paver for moving the paver along a paving path; a supported frame from the propelling apparatus including paver bolsters extending parallel to the paving path and at least one crossbeam extending across the paving path and upwardly at the sides of the paving path; a suspended slip form attached to the paver for receiving concrete placed on the paving path and slip forming the concrete into a continuous slab on the paving path; a dowel bar inserter pan having relative movement over the continuous slab with respect to the suspended slip form for moving towards and away from the suspended slip form during the insertion of dowel bars; a plurality of dowel bar receiving stations in the dowel bar inserter pan, each dowel bar receiving station for receiving a dowel bar, holding the dowel bar, and releasing the dowel bar to a passing dowel bar inserter; a line of dowel bar inserters moveable with the dowel bar inserter pan and aligned to the dowel bar receiving stations and mounted to the supporting frame having side-by-side spacing registered to the dowel bar receiving stations to pass through the dowel bar receiving stations and to insert dowel bars from the dowel bar receiving stations into the continuous slab on the paving path; a single file dowel bar feed path moveable with the dowel bar inserter pan and having at least one vertical leg at a side of the paver and a horizontal leg extending directly over the plurality of dowel bar receiving stations; means for moving dowels along the single file dowel bar feed path whereby dowels fall into the dowel bar receiving stations in the dowel bar inserter pan when the dowel bar receiving stations are empty; and, means for moving the line of dowel bar inserters through the dowel bar receiving stations to empty the dowel bar receiving stations and insert the dowel bars to the slab.