Patent ID: 8147233
Filing Date: 2012-04-03
Classification: B28B

Abstract:
1. A color blending apparatus for blending different colored semi-dry concrete mixes together, the different color semi-dry concrete mixes being delivered to a mold from a feedbox, the feedbox moving over the mold in a reference direction, the apparatus comprising: a first conveyor; a plurality of dosing hoppers including a first dosing hopper for depositing an amount of a first colored semi-dry concrete mix on the first conveyor, and a second dosing hopper for depositing an amount of a second colored semi-dry concrete mix on the first conveyor in a controllably variable position relative to the first color semi-dry concrete mix deposited on the first conveyor; a second conveyor for receiving the amounts of the first and second color semi-dry concrete mixes from the first conveyor; a face mix hopper for delivering the different colored semi-dry concrete mixes to the feedbox, the second conveyor capable of controllably varying a placement of the first and second colored concrete semi-dry concrete mix in the face mix hopper in a direction generally perpendicular to the reference direction.