Patent ID: 8962093
Filing Date: 2015-02-24
Classification: B05B,B05D,B65B,Y10T

Abstract:
1. A method of coating a surface of a substrate with a liquid, curable coating fluid comprising the steps of (i) providing a portable spray applicator containing an inventory of the curable coating fluid and having a manually operable, pump sprayer that includes a single-fluid spray nozzle in fluid communication with the curable coating fluid, (ii) manually pumping the curable coating fluid through the spray nozzle, thereby forming a spray of atomized coating fluid, and (iii) directing the spray of atomized coating fluid onto the surface in which the spray applicator further comprises (a) a bottle-shaped container having an impermeable body defined by a flat bottom wall with an oviform perimeter at a lower end of the container, a side wall extending upward from the bottom wall and terminating in a top end defining an opening to receive contents of the container opposite the bottom wall, the side wall being substantially perpendicular to the bottom wall near the lower end, and (b) an agitation system within the container comprising (i) a plurality of freely movable, small spherical balls, and (ii) at least one freely movable striker, in which the bottom wall and side wall join inside the container to form a corner having at every point along the perimeter a circular arc cross section in a plane perpendicular to both the bottom wall and the side wall, the circular arc defined by a radius of curvature, in which the small spherical balls each have a radius equal to the radius of curvature, and in which the at least one striker has a characteristic dimension about 10-500% greater than twice the radius of curvature.