Vacuum cleaner with dirt collection vessel having a stepped sidewall

摘要

A vacuum cleaner is provided including a nozzle assembly with a suction inlet and a canister assembly. A suction generator and dirt collection vessel ate carried on one of the nozzle assembly and canister assembly. The dirt collection vessel includes a base wall, a stepped sidewall and a dirt collection chamber. The stepped sidewall has a first cylindrical section with a circumference C₁, and a second cylindrical section with a circumference C₂ where C₁, C₁>C₂. In addition the stepped sidewall includes a step connecting the first and second cylindrical sections where the step and first cylindrical section define an included angle A₁<=90°.