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US 12,295,538 B2Granted
Cyclonic air treatment member and surface cleaning apparatus including the same
AssigneeOmachron Intellectual Property Inc.
InventorWayne Ernest Conrad
Life of this patent
Estimating the term…
Abstract
A hand vacuum cleaner comprises a cyclone, a conical pre-motor filter that is positioned rearward of the cyclone and a suction motor. The pre-motor filter has a front end that faces that faces towards the cyclone air outlet. The conical pre-motor filter has an open interior volume, an outer surface, which is an upstream surface of the pre-motor filter, and an inner surface, which is a downstream surface of the pre-motor filter.
Claims20
A hand vacuum cleaner having a front end having a dirty air inlet, a rear end, an upper end and a lower end, the hand vacuum cleaner comprising:
- (a) an air treatment chamber comprising a front end, a rear end having an air treatment chamber air outlet and an air treatment chamber axis extending centrally between the front end and the rear end of the air treatment chamber, wherein the air treatment chamber air outlet extends axially into the air treatment chamber from the rear end of the air treatment chamber, the air treatment chamber air outlet has a front end and a rear end;
- (b) a pre-motor filter positioned downstream of the air treatment chamber, the pre-motor filter having a front end that faces that faces towards the air treatment chamber air outlet;
- (c) a suction motor positioned rearward of the pre-motor filter, the suction motor having an inlet end that faces towards a rear end of the pre-motor filter and a suction motor axis of rotation;
- and,
- (d) a handle at the rear end of the hand vacuum cleaner and positioned rearward of the suction motor, the handle comprising an energy storage member housing, the handle having a front end provided at a rear end of the suction motor housing, a rear end and a handle axis extending between the front and rear end of the handle,
- wherein the air treatment chamber axis and the suction motor axis of rotation extend in a common direction, and
- wherein the air treatment chamber comprises a lower openable portion which is moveable between a closed position and an open position by a mount, wherein the lower openable portion includes the air treatment chamber air outlet and wherein the mount is provided rearward of the front end of the air treatment chamber air outlet.
4 more elements
A hand vacuum cleaner having a front end having a dirty air inlet, a rear end, an upper end and a lower end, the hand vacuum cleaner comprising:
- (a) an air treatment chamber comprising a front end, a rear end having an air treatment chamber air outlet and an air treatment chamber axis extending centrally between the front end and the rear end of the air treatment chamber wherein the air treatment chamber air outlet extends axially into the air treatment chamber from the rear end of the air treatment chamber, the air treatment chamber air outlet has a front end and a rear end;
- (b) a pre-motor filter positioned downstream of the air treatment chamber, the pre-motor filter having a front end that faces towards the air treatment chamber air outlet;
- (c) a suction motor positioned rearward of the pre-motor filter, the suction motor having an inlet end that faces towards a rear end of the pre-motor filter and a suction motor axis of rotation;
- and,
- (d) a handle at the rear end of the hand vacuum cleaner,
- wherein the air treatment chamber comprises a stationary portion and a lower openable portion, the lower openable portion includes the air treatment chamber air outlet, the lower openable portion is moveable between a closed position and an open position by a mount located rearward of the front end of air treatment chamber air outlet and, when the lower openable portion is in the closed position, a forward end of the lower openable portion mates with a lower portion of the stationary portion along a juncture and a forward end of the juncture extends upwardly at an angle to the air treatment chamber axis.
3 more elements
A hand vacuum cleaner having a front end having a dirty air inlet, a rear end, an upper end and a lower end, the hand vacuum cleaner comprising:
- (a) an air treatment chamber comprising a front end, a rear end having an air treatment chamber air outlet and an air treatment chamber axis extending centrally between the front end and the rear end of the air treatment chamber wherein the air treatment chamber air outlet extends axially into the air treatment chamber from the rear end of the air treatment chamber, the air treatment chamber air outlet has a front end and a rear end;
- (b) a pre-motor filter positioned downstream of the air treatment chamber, the pre-motor filter having a front end that faces towards the air treatment chamber air outlet;
- (c) a suction motor positioned rearward of the pre-motor filter, the suction motor having an inlet end that faces towards a rear end of the pre-motor filter and a suction motor axis of rotation;
- and,
- (d) a handle at the rear end of the hand vacuum cleaner,
- wherein the air treatment chamber axis and the suction motor axis of rotation extend in a common direction, and
- wherein the air treatment chamber comprises an axially extending sidewall, the sidewall comprising a lower openable portion and a stationary portion, wherein the stationary portion comprises an upper portion of the axially extending sidewall and the lower openable portion comprises a lower portion of the axially extending sidewall and the air treatment chamber air outlet and, when the lower openable portion is in the closed position, the upper portion of the axially extending sidewall mates with the lower portion of the axially extending sidewall along a juncture that, from a forward end of the juncture, extends upwardly and rearwardly and then axially.
4 more elements
Dependencies are inferred from the claim text.