Patent ID: 7617992

Claim:
An irrigation system for applying an irrigation fluid from a fluid source to an irrigation region, the irrigation system comprising: a first alignment guide; and an irrigation unit spaced apart from the alignment guide, the irrigation unit directing the irrigation fluid to a portion of the irrigation region, the irrigation unit including (i) a nozzle that is in fluid communication with the fluid source so that the irrigation fluid from the fluid source is transferred to the nozzle, (ii) a sensor that senses the position of the first alignment guide relative to the nozzle, (iii) a unit control system that receives a signal from the sensor regarding the position of the first alignment guide relative to the nozzle to adjust one of a flow rate of irrigation fluid through the nozzle and a position of the nozzle, and (iv) a housing having a portion that is fixed relative to the irrigation region, the housing retaining the nozzle so that at least a portion of the nozzle is positioned within the housing.