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US 11,992,167 B2Granted
Surface cleaning apparatus
AssigneeOmachron Intellectual Property Inc.
InventorWayne Ernest Conrad
Life of this patent
Estimating the term…
Abstract
A hand vacuum cleaner comprises a cyclone unit comprising a first cyclonic stage and a second cyclonic stage. The first cyclonic stage has a first stage cyclone with a cyclone axis of rotation that extends between the front and rear ends of the cyclone. The cyclone axis of rotation extends through a central portion of the second cyclonic stage. The nozzle has a nozzle axis that extends through a central portion of the first stage cyclone between the front and rear ends of the cyclone.
Claims19
A hand vacuum cleaner comprising:
- (a) an air flow passage extending from an upstream end of a nozzle, which is provided at a front of the hand vacuum cleaner, to a clear air outlet provided at a rear of the hand vacuum cleaner;
- (b) a cyclonic unit comprising a first cyclonic stage, the first cyclonic stage comprising a first stage cyclone having a front, a rear and a cyclone axis of rotation extending between the front and rear of the cyclone;
- (c) the cyclonic unit further comprising a second cyclonic stage downstream of the first cyclonic stage, the second cyclonic stage comprising a plurality of cyclones, wherein the cyclone axis of rotation extends through a central portion of the second cyclonic stage;
- (d) a suction motor that is positioned in the air flow passage downstream of the second cyclonic stage, the suction motor having a suction motor axis of rotation, wherein the suction motor axis of rotation extends through the central portion of the second cyclonic stage;
- and,
- (e) a handle,
- wherein the nozzle has a nozzle axis that extends through a central portion of the first stage cyclone and that extends through the front and rear of the cyclone and,
- wherein, when the hand vacuum cleaner is oriented with the front forward of the clean air outlet, a forward end of the handle is mounted to a body in which the suction motor is provided and a plane that is transverse to the cyclone axis of rotation extends through the forward end of the handle and the suction motor.
5 more elements
A hand vacuum cleaner comprising:
- (a) an air flow passage extending from an upstream end of a nozzle, which is provided at a front of the hand vacuum cleaner, to a clear air outlet provided at a rear of the hand vacuum cleaner;
- (b) a cyclonic unit comprising a first cyclonic stage, the first cyclonic stage comprising a first stage cyclone having a front, a rear and a cyclone axis of rotation extending between the front and rear of the cyclone;
- (c) the cyclonic unit further comprising a second cyclonic stage downstream of the first cyclonic stage, the second cyclonic stage comprising a plurality of cyclones, wherein the cyclone axis of rotation extends through a central portion of the second cyclonic stage;
- (d) a suction motor that is positioned in the air flow passage downstream of the second cyclonic stage, the suction motor having a suction motor axis of rotation, wherein the suction motor axis of rotation extends through the central portion of the second cyclonic stage;
- and,
- (e) a handle,
- wherein the nozzle has a nozzle axis that extends through a central portion of the first stage cyclone and that extends through the front and rear of the cyclone and,
- wherein the nozzle comprises an inlet passage that extends longitudinally between the upstream end of the nozzle and a downstream end of the nozzle and has a longitudinal passage axis that is coaxial with the cyclone axis of rotation.
5 more elements
A hand vacuum cleaner comprising:
- (a) an air flow passage extending from an upstream end of a nozzle, which is provided at a front of the hand vacuum cleaner, to a clear air outlet provided at a rear of the hand vacuum cleaner;
- (b) a cyclonic unit comprising a first cyclonic stage, the first cyclonic stage comprising a first stage cyclone having a front, a rear and a cyclone axis of rotation extending between the front and rear of the cyclone;
- (c) the cyclonic unit further comprising a second cyclonic stage downstream of the first cyclonic stage, the second cyclonic stage comprising a plurality of cyclones, wherein the cyclone axis of rotation extends through a central portion of the second cyclonic stage;
- (d) a suction motor that is positioned in the air flow passage downstream of the second cyclonic stage, the suction motor having a suction motor axis of rotation, wherein the suction motor axis of rotation extends through the central portion of the second cyclonic stage;
- and,
- (e) a handle,
- wherein the nozzle extends through a front wall of the first stage cyclone.
4 more elements
Dependencies are inferred from the claim text.