KNAPSACK BLOWER-SPRAYER

摘要

A knapsack blower-sprayer has its load bearing structure constituted by an hollow body (1) of molded plastic material that has a broadened base portion (3) compared to the narrower top protion (4), and has a concave or recessed area on the outer surface of the back wall of the hollw body (1), at the centre of which is defined a ventilation tube (11) or nest of tubes passing through the molded body (1), open on the outer surfaces of the front and back walls of the hollow body. The hollw body has two liquid filling openings at the rims of respective tubular appendices (7, 8) of the molded hollow body, closed by screw caps (2, 19). Through a first filling opening, access is provided to a fuel tank (18) defined within the inner space of the hollow body. The second liquid filling opening accesses the internal volume of the hollow body (1) that is fillable with a liquid to be sprayed.