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US 11,826,007 B2Granted
Hand carryable surface cleaning apparatus
AssigneeOmachron Intellectual Property Inc.
InventorsWayne Ernest Conrad, Nina Conrad, Dave Petersen
Life of this patent
Estimating the term…
Abstract
A hand vacuum cleaner has a dual first stage cyclones.
Claims19
A hand vacuum cleaner having a front end, a rear end, an upper end, a lower end and a handle, the hand vacuum cleaner comprising:
- (a) an air flow passage extending from a first dirty air inlet to a clean air outlet;
- (b) a first cyclonic cleaning stage downstream of the dirty air inlet, the first cyclonic cleaning stage comprising first and second cyclones in parallel, each of the first and second cyclones having a cyclone air inlet, a cyclone air outlet, and a cyclone axis of rotation;
- (c) a pre-motor filter downstream from the first cyclonic cleaning stage;
- and,
- (d) a suction motor and fan assembly downstream of the pre-motor filter, the suction motor and fan assembly having a central axis of rotation,
- wherein, in operation, the first dirty air inlet receives untreated air and the cyclones of the first cyclonic cleaning stage are first air treatment chambers of the hand vacuum cleaner which treat the untreated air.
3 more elements
A hand vacuum cleaner comprising:
- (a) an air flow passage extending from a dirty air inlet to a clean air outlet and the dirty air inlet is provided at the front end of the hand vacuum cleaner;
- (b) a cyclonic cleaning stage downstream of the dirty air inlet, the cyclonic cleaning stage comprising first and second cyclones in parallel, each of the first and second cyclones having a cyclone chamber having a front end, a rear end, a cyclone chamber air inlet, a cyclone chamber air outlet in the rear end, and a cyclone axis of rotation, wherein the cyclone axis of rotation intersects the front and rear ends of a respective cyclone, wherein the cyclone axis of rotation extends horizontally when the hand vacuum cleaner is oriented with an upper end of the hand vacuum cleaner above a lower end of the hand vacuum cleaner and wherein the front end of the cyclone chamber of the first cyclone and the front end of the cyclone chamber of the second cyclone are concurrently openable;
- (c) a pre-motor filter downstream from the first cyclonic cleaning stage;
- (d) a suction motor and fan assembly downstream of the pre-motor filter, the suction motor and fan assembly having a central axis of rotation;
- and
- (e) a dirt collection chamber external to the cyclones and the dirt collection chamber is opened concurrently with the first and second cyclones.
3 more elements
Dependencies are inferred from the claim text.