US 12,247,367 B2
Molded concrete block having visually enhanced contrasting surface sections; methods, and use
Christopher W. Becker, Prescott, WI (US); Glenn C. Bolles, Edina, MN (US); Jay J. Johnson, Star Prairie, WI (US); Jonathan M. Schlueter, Medina, MN (US); Robert B. Burnquist, Chaska, MN (US); and Steven P. Bennett, Coon Rapids, MN (US)
Assigned to Anchor Wall Systems, Inc., Minnetonka, MN (US)
Filed by Anchor Wall Systems, Inc., Minnetonka, MN (US)
Filed on May 18, 2023, as Appl. No. 18/199,161.
Application 18/199,161 is a continuation of application No. 16/631,327, granted, now 11,692,323, previously published as PCT/US2018/043299, filed on Jul. 23, 2018.
Claims priority of provisional application 62/536,336, filed on Jul. 24, 2017.
Prior Publication US 2023/0358009 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B05D 1/02 (2006.01); B05B 12/28 (2018.01); B28B 11/00 (2006.01); B28B 11/04 (2006.01); C04B 41/45 (2006.01); E02D 17/20 (2006.01); E04C 1/00 (2006.01); B05B 13/04 (2006.01)
CPC E02D 17/205 (2013.01) [B05B 12/28 (2018.02); B05D 1/02 (2013.01); B28B 11/001 (2013.01); B28B 11/048 (2013.01); C04B 41/4543 (2013.01); E04C 1/00 (2013.01); B05B 13/0447 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for enhancing the appearance of a first decorative surface of a molded block unit of concrete, the method comprising:
spraying a colorant through one or more openings in a stencil onto a selected portion of the first decorative surface, the stencil acting to prevent the sprayed colorant from being applied onto selected other portions of the molded block unit; characterized in that:
during the colorant spraying step, the molded block unit is oriented so that the first decorative surface faces upwardly and extends generally horizontally; and
during the colorant spraying step, the stencil is oriented so that it extends generally horizontally and is offset from the first decorative surface.