US 7,572,048 B2
Apparatus for highly controlled color distribution in mass produced concrete products
Matthew K. Morey, Menlo Park, Calif. (US); James Grossi, Gustine, Calif. (US); Robert van Baarsel, Wassenaar (Netherlands); Arjan Kemp, Hengelo (Netherlands); and Bernhard Veerkamp, Spelle (Germany)
Assigned to Calstone, Sunnyvale, Calif. (US); and Rekers GmbH Maschinen-und Anlagenbau, Spelle (Germany)
Filed on Apr. 21, 2005, as Appl. No. 11/111,656.
Prior Publication US 2006/0237088 A1, Oct. 26, 2006
Int. Cl. B28C 7/06 (2006.01)
U.S. Cl. 366—16  [366/8; 366/41; 366/152.1; 366/153.2; 425/130; 425/260; 425/448] 5 Claims
OG exemplary drawing
 
1. A color blending apparatus for blending different colored semi-dry concrete mixes together, and for delivering the different colored semi-dry concrete mixes to a mold from a feedbox, the feedbox moving over the mold in a reference direction, the apparatus comprising:
a conveyor for receiving two or more different colored semi-dry concrete mixes, the semi-dry concrete mixes received in a controllably variable position with respect to each other, the conveyor capable of movement in a first direction to advance the two or more different colored semi-dry concrete mixes, and a second direction generally transverse to the first direction; and
a face mix hopper having a top portion for receiving the two or more different colored semi-dry concrete mixes, the conveyor capable of movement in the second direction to convey the two or more different colored semi-dry concrete mixes into the top portion across a width of the face mix hopper, the conveyor capable of depositing each of two or more colored semi-dry concrete mixes from the conveyor to different lateral positions across the width of the face mix hopper.