A PROTECTIVE MEANS OR ASSEMBLY

摘要

A protective means or assembly (10) is operative in an agricultural spray to act against spray which might otherwise deposit on a sensor (20). The sensor (20) is ideally in a housing (27) with a light (19), the protective means or assembly (10) resisting intrusion of any liquid and other particles drifting in air into a zone containing the sensor (20) and any light (19). The housing has pockets or channels (11, 12, 13) directing air therethrough between end caps (21, 24) and via side pockets (12, 13) to openings (14, 15, 17) to the zones (16, 18) where the air flow is needed to screen the sensor and any lights. A first end cap (21) has a spigot (22) to receive an air hose. A second end cap (24) creates a flow path between the main (11) and side pockets (12, 13). The protective means or assembly (10), its sensor (20) and lights (19) may mount atop a hood (35) with the sensor and any light communicated to the ground beneath the hood via openings (32, 33).