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US 5,727,283 AGranted
Collection apparatus
AssigneeBlack & Decker Inc.
InventorCraig Duncan Webster
Life of this patent
Estimating the term…
Abstract
A collection apparatus includes an air outlet, a collection mouth and an apparatus for creating an airstream for discharge at the air outlet. The collection apparatus further includes a cylinder mounted at the air outlet for rotation and a device for directing an airstream tangentially across the surface of said cylinder.
Claims4
Collection apparatus comprising
- a) an air outlet;
- b) a collection mouth;
- c) means for creating an airstream for discharge at the air outlet;
- d) a rotatable cylinder mounted at the air outlet and disposed between a first channel and a second channel;
- and
- e) means for directing the discharged airstream substantially tangentially across a surface of the rotatable cylinder such that the rotatable cylinder rotates in the direction of airstream flow.
3 more elements
Dependencies are inferred from the claim text.