Patent ID: 9204772
Filing Date: 2015-12-08
Classification: A47L

Abstract:
1. A surface cleaning apparatus comprising: (a) an air flow path extending from a dirty air inlet to a clean air outlet and including a suction motor; (b) a cyclone chamber provided in the air flow path and comprising a cyclone air outlet, a longitudinally extending axis, and a cyclone chamber wall extending between a first end and second end that is axially spaced apart from the first end, the cyclone chamber wall having a rear portion comprising a cyclone air inlet and an opposing front portion comprising a cyclone dirt outlet, the cyclone dirt outlet comprising a slot extending circumferentially part way around the cyclone chamber wall between a first slot end and a second slot end that is downstream from the first slot end in a direction in which air circulates within the cyclone chamber, the dirt outlet being provided toward the first end of the cyclone chamber; (c) a dirt collection chamber having first and second axially spaced apart ends, a first portion extending from the dirt collection chamber first end towards the dirt collection chamber second end, a second portion extending from the dirt collection chamber second end towards the dirt collection chamber first end, the dirt collection chamber second portion having a central longitudinally extending axis, the dirt collection chamber first portion is in communication with the cyclone dirt outlet wherein at least a portion of the cyclone chamber is in the dirt collection chamber first portion and the cyclone chamber is non-symmetrically positioned with respect to the central longitudinally extending axis of the dirt collection chamber second portion, the dirt collection chamber second end is axially spaced away from the cyclone chamber second end and the dirt collection chamber first portion comprises an inner side adjacent the cyclone chamber and an outer side transversely spaced from and facing the cyclone chamber and defined by a dirt collection chamber sidewall; and, (d) a rib disposed within the dirt collection chamber circumferentially between the first slot end and the second slot end and extending from a position in the first portion of the dirt collection chamber radially from one of the dirt collection chamber sidewall and the cyclone sidewall toward the other one of the dirt collection chamber sidewall and the cyclone sidewall, the rib comprising an upstream side that is orthogonal to the direction in which air circulates within the cyclone chamber and an opposing downstream side and all of the upstream and downstream sides are exposed to the air in the dirt collection chamber.