Vacuum cleaners
AssigneeBlack & Decker Inc.
InventorDavid Rowntree
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner (2) having a body (4) having a floorhead (6) and an elongate handle (14) pivotably mounted to the body is disclosed. A door (24) is provided on an end (20) of a collection chamber (12) opposite to a clean air outlet, and a coarse filter (32) and fine filter (46) are located within the collection chamber for separating out debris entrained with dirty air and depositing the debris in the collection chamber. An interior face of the door is provided with radial tangs (68), and an end face (48) of the fine filter is provided with radial tangs (60) such that when the door is closed and the elongate handle is pivoted relative to the body, the fine filter and coarse filter rotate relative to each other to cause cleaning of the filter elements.
Claims17
A vacuum cleaner comprising:
- a body having a floorhead for engaging a floor, wherein the floorhead has a first inlet for dirty air;
- an elongate handle for gripping by a user and pivotably mounted to the body;
- an electric motor located in the body or the handle;
- an electrical on-off switch for operating the motor;
- a fan connected to an output shaft of the motor;
- an airflow path comprising a second inlet for dirty air, an outlet for clean air, and a collection chamber located in fluid communication between said second inlet and said outlet;
- the collection chamber having a door and a filter located within the collection chamber for separating out debris entrained with dirty air entering via said second inlet and depositing the debris in said collection chamber;
- wherein an interior face of the door is provided with first engaging portions, and an end face of the filter adjacent to the interior face of the door is provided with second engaging portions such that when the door is closed and the elongate handle is pivoted relative to the body, the first and second engaging portions engage each other to cause at least part of the filter to rotate relative to the body.
A vacuum cleaner comprising:
- a body having a floorhead on a first end, the floorhead having a dirty air inlet;
- a handle pivotably connected to a second end of the body;
- a collection chamber providing the connection between handle and the body and being in fluid communication with the dirty air inlet, wherein the handle and the body rotate relative to one another about the collection chamber;
- a motor and impeller for providing a suction force for the dirty air inlet;
- wherein the collection chamber is substantially at the midpoint of the vacuum cleaner;
- wherein the motor is located in the collection chamber;
- and
- an air filter surrounding the motor.
Dependencies are inferred from the claim text.