Patent ID: 6454183
Filing Date: 2002-09-24
Classification: A01M,E01H

Abstract:
A sprayer boom (2) adapted to be connected to a vehicle, wherein said sprayer boom has:a number of liquid nozzles (8) adapted to spray a carriageway during driving wherein said nozzles are divided into sets comprising one or a plurality of nozzles; a feed pipe (4) liquidly connected to a storage container (3) and. to the nozzles (8), wherein the feed pipe (4) is adapted to convey a liquid fed under pressure from the storage container (3) to the nozzles (8), characterized in that the nozzle sets are placed on each their nozzle pipe (7;15;21) that liquidly connects the nozzles (8) in the set; at least one cross pipe (11) liquidly connects at least two nozzle pipes (7;15;21) in series two by two; wherein each cross pipe has at least one partition (12) with a pressure valve (13) arranged to open a passage through the respective partition at a prefixed liquid pressure such that at least one of the nozzle pipes (7;15,21) in not directly connected to the feed pipe (4) but has a cross pipe (11) and a partition (12) disposed therebetween; and wherein at least one, but not all, of said nozzle pipes are connected directly to the feed pipe (4).