Patent ID: 7438764
Filing Date: 2008-10-21
Classification: E01C

Abstract:
1. A spray assembly for applying a fluid material to a surface, said assembly comprising: (a) a first spray bar that is mounted for movement along an axis, said spray bar including a plurality of nozzles: (b) a second spray bar that is mounted for movement along the axis, said spray bar including a plurality of nozzles: (c) a source of fluid material; (d) a fluid circuit through which fluid material may be supplied to each of the nozzles of the first spray bar and each of the nozzles of the second spray bar; (e) means for intercepting at least a portion of the spray from a nozzle of the second spray bar to prevent the spray pattern from said nozzle of the second spray bar from overlapping with the spray pattern from a nozzle of the first spray bar; and (f) means for closing the valve associated with a nozzle of the second spray bar.