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US 2005/0177974 A1Published application
Vacuum cleaner having two cyclonic cleaning stages
AssigneeFantom Technologies Inc.
InventorsWayne Conrad, Helmut Conrad
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner has a first and second cyclonic cleaning stages in series. The second cyclonic cleaning stage has a plurality of second stage cyclones. A conduit connects the first cyclonic cleaning stage outlet and the second stage cyclone inlets.
Claims23
A vacuum cleaner comprising:
- a) a dirty air inlet and a source of suction to draw air containing particulate matter into the dirty air inlet and produce an air stream in the vacuum cleaner;
- b) a first cyclonic cleaning stage comprising a cyclone having a first cyclonic cleaning stage inlet and a first cyclonic cleaning stage outlet;
- c) a second cyclonic cleaning stage positioned in series with the first cyclonic cleaning stage, the second cyclonic cleaning stage comprising a plurality of second stage cyclones, each of the second stage cyclones having a second stage cyclone inlet and a second stage cyclone outlet;
- and,
- d) a passage connecting the first cyclonic cleaning stage outlet and the second stage cyclone inlets, and the passage is configured to inhibit settling out of particulate matter from the air stream.
2 more elements
The vacuum cleaner as claimed in 1 wherein the passage is at least partially defined by the second stage cyclones.
A vacuum cleaner comprising:
- a) a dirty air inlet and a source of suction to draw air containing particulate matter into the dirty air inlet and produce an air stream in the vacuum cleaner;
- b) a first cyclonic cleaning stage comprising a cyclone having a first cyclonic cleaning stage inlet and a first cyclonic cleaning stage outlet;
- c), a second cyclonic cleaning stage positioned in series with the first cyclonic cleaning stage, the second cyclonic cleaning stage comprising a plurality of second stage cyclones, each of the second stage cyclones having a second stage cyclone inlet and a second stage cyclone outlet;
- and,
- d) a passage extending from the first cyclonic cleaning stage outlet to the second stage cyclone inlets, and the passage is substantially free of any dead air spaces.
2 more elements
A vacuum cleaner comprising:
- a) a dirty air inlet and a source of suction to draw air containing particulate matter into the dirty air inlet and produce an air stream in the vacuum cleaner;
- b) a first cyclonic cleaning stage comprising a cyclone having a first cyclonic cleaning stage inlet and a first cyclonic cleaning stage outlet;
- c) a second cyclonic cleaning stage positioned in series with the first cyclonic cleaning stage, the second cyclonic cleaning stage comprising a plurality of second stage cyclones, each of the second stage cyclones having a second stage cyclone inlet and a second stage cyclone outlet;
- and,
- d) a conduit extending from the first cyclonic cleaning stage outlet to the second stage cyclone inlets.
2 more elements
Dependencies are inferred from the claim text.