Method and apparatus for reducing the size of elongate particulate material in a vacuum cleaner head
AssigneeFantom Technologies Inc.
InventorsWayne Ernest Conrad, Scott Hamilton
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner head is provided with cutting elements positioned in the air flow path of the vacuum cleaner head to reduce the size of elongate particulate material entering the dirty air inlet.
Claims20
A vacuum cleaner head for cleaning a surface comprising:
- (a) a casing having a dirty air inlet for receiving an air flow having entrained particulate material, an air outlet and an air flow path extending between the dirty air inlet and the air outlet;
- (b) a first member having a cutting edge and mounted in the casing, the cutting edge positioned in the air flow path;
- and,
- (c) a second member mounted in the casing for rotation in response to air flow through the air flow path and cooperative with the first member for reducing the size of a portion of the particulate material entering the dirty air inlet.
A vacuum cleaner head for cleaning a surface comprising:
- (a) a casing having a dirty air inlet for receiving an air flow having entrained particulate material, an air outlet and an air flow path extending between the dirty air inlet and the air outlet;
- and,
- (b) cutting means positioned in the air flow path for reducing the size of a portion of the particulate material as it flows past the cutting means, the cutting means comprising motive force means for producing motive power in response to the air flow through the vacuum cleaner head.
A method of cleaning a surface using a vacuum cleaner head having a dirty air inlet, an air outlet, a motive force means for producing motive power in response to the air flow through the vacuum cleaner head and an air flow path there between, the method comprising:
- (a) introducing dirty air having entrained particulate material into the dirty air inlet;
- and,
- (b) using the motive force means to reduce the size of a portion of the particulate material as it passes through the air flow path.
A vacuum cleaner head for cleaning a surface comprising:
- (a) a casing having a dirty air inlet for receiving an air flow having entrained particulate material, an air outlet and an air flow path extending between the dirty air inlet and the air outlet;
- (b) a first member having a cutting edge and mounted in the casing, the cutting edge positioned in the air flow path;
- (c) a turbine positioned in the air flow path and at least some of the blades of the turbine cooperate with the first member as the turbine rotates;
- and,
- (d) a rotatable mounted brush which is drivenly connected to the turbine whereby the size of a portion of the particulate material entering the dirty air inlet is reduced.
Dependencies are inferred from the claim text.