US 12,227,652 B2
Coating system for asphalt and related methods
Joseph LaRusso, Oro Valley, AZ (US); and Bradley Richard Grose, Glade Park, CO (US)
Assigned to Asphalt Systems, Inc., Salt Lake City, UT (US)
Filed by Asphalt Systems, Inc., Salt Lake City, UT (US)
Filed on Jan. 5, 2023, as Appl. No. 18/150,386.
Application 18/150,386 is a division of application No. 17/209,866, filed on Mar. 23, 2021.
Application 17/209,866 is a division of application No. 15/691,248, filed on Aug. 30, 2017, granted, now 10,982,097, issued on Apr. 20, 2020.
Prior Publication US 2023/0144506 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 95/00 (2006.01); E01C 9/00 (2006.01); E01C 11/00 (2006.01); E01C 19/21 (2006.01); E01C 23/06 (2006.01)
CPC C08L 95/005 (2013.01) [E01C 9/00 (2013.01); E01C 11/005 (2013.01); E01C 19/21 (2013.01); E01C 23/06 (2013.01); C08L 2555/52 (2013.01); C08L 2555/70 (2013.01); C08L 2555/80 (2013.01); C08L 2555/84 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A system for coating a surface, comprising:
an applicator vehicle comprising a spraying unit and a spreader unit; and
a controller configured to control the operation of the spraying unit and the spreader unit;
wherein the spraying unit is configured for spraying a stable cationic emulsion onto a surface, the stable cationic emulsion comprising (i) an asphalt blend comprising gilsonite, the gilsonite being modified to possess a positive charge; (ii) one or more polymers; and (iii) one or more non-cationic surfactants, wherein the stable cationic emulsion does not include a cationic surfactant; and
wherein the spreader unit is configured to apply an aggregate to the surface, the spreader unit having:
a. a hopper to hold the aggregate;
b. a controllable gate coupled to the hopper, the controllable gate being moveable to allow the aggregate to exit the hopper; and
c. a roller assembly near the controllable gate configured to apply the aggregate material onto the sprayed emulsion.