Patent ID: 6390726
Filing Date: 2002-05-21
Classification: E01C

Abstract:
A plurality of dowel bar inserter stations, each dowel bar insertion station comprising:an upper dowel bar shuttle with an upper shuttle bar opening for receiving a dowel bar; a dowel bar inserter pan for forming concrete adjacent dowel bar insertion stations; a lower dowel bar shuttle with a lower shuttle bar opening through the dowel bar inserter pan for permitting a dowel bar to fall through the lower dowel bar shuttle and the dowel bar inserter pan; a single file dowel bar path defined immediately above the plurality of dowel bar inserter stations at the upper dowel bar shuttle for each inserter station; means for moving dowel bars single file along the single file dowel bar path to allow dowel bars to fall into the upper dowel bar shuttle; means for moving the upper dowel bar shuttle relative to the lower dowel bar shuttle to permit the upper shuttle bar opening in the upper dowel bar shuttle and the lower shuttle bar opening in the lower dowel bar shuttle to move into and out of registration one with another to permit dowel bars to fall from the upper shuttle bar opening in the upper dowel bar shuttle into the lower shuttle bar opening of the lower dowel bar shuttle and on to a slab formed beneath the dowel bar inserter pan; and, a dowel bar inserter for moving a dowel bar into the slab.