Patent ID: 7134806
Filing Date: 2006-11-14
Classification: E01C

Abstract:
1. An apparatus adapted for mounting on a mixing vehicle for mixing a patching slurry for repairing a road surface by filling depressed areas of the road surface with the patching slurry, the apparatus comprising: a mixing bowl; an aggregate holding tank, and an aggregate measuring tank operatively connected to the aggregate holding tank to receive aggregate therefrom, and means for transferring the contents of the aggregate measuring tank into the mixing bowl; an asphalt emulsion holding tank, and an asphalt emulsion measuring tank operatively connected to the asphalt emulsion holding tank to receive asphalt emulsion therefrom, and means for transferring the contents of the asphalt emulsion measuring tank into the mixing bowl; a water holding tank, and a water measuring tank operatively connected to the water holding tank to receive water therefrom, and means for transferring the contents of the water measuring tank into the mixing bowl; means for adding a measured amount of Portland cement to the mixing bowl; means for adding a measured amount of a retarding agent to the mixing bowl, the retarding agent operative to increase a break time of the patching slurry, a mixer operative to mix aggregate, Portland cement, asphalt emulsion, water, and retarding agent contained in the mixing bowl into a patching slurry having a temperature substantially equal to ambient temperature; wherein the mixing bowl is pivotally mounted such that the mixing bowl can be selectively moved from an upright mixing position, wherein contents of the mixing bowl are retained in the mixing bowl, to a tilted dumping position wherein contents of the mixing bowl pour out of the mixing bowl.