Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage, an inlet duct, and an outlet duct. The first cyclone stage comprises a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid to the first cyclone stage, and the outlet duct carries fluid from the second cyclone stage. The first dirt collection chamber then surrounds at least partly the inlet duct and the outlet duct.

Abstract: A vacuum cleaner comprises a removable dust separator. The dust separator has an inlet duct and an outlet duct. The inlet duct is arranged for fluid connection to a dirt-air duct on the cleaner, and the outlet duct is arranged for fluid connection to a motor intake duct on the cleaner. In accordance with the invention, the inlet duct and outlet duct share a common wall which divides the open ends of the ducts, an inlet duct sealing member is provided for forming an air-seal between the inlet duct and the dirty-air duct, and an outlet duct sealing member is provided for forming an air seal between the outlet duct and the motor intake duct. Both seals are thus required to fail in order to short-circuit the two dirty-air duct and the motor intake duct, despite there being a common wall section between the inlet duct and the outlet ducts.

Abstract: A vacuum cleaner has a removable cyclonic separator that includes a cyclone chamber; a dirt-collection chamber, open at one end; and an outlet duct from the cyclone chamber. An open end of the outlet duct is arranged for connection to a motor intake duct on the cleaner, the outlet duct and dirt collection chamber sharing a common wall section which divides the open end of the outlet duct from the open end of the dirt collection chamber. A cover closes off the open end of the dirt collection chamber and can be opened to allow access to the dirt collection chamber for emptying. When the cover is in the closed position, a cover sealing member forms an air seal between the cover and the common wall section. When the outlet duct is connected to the motor inlet duct, an outlet duct sealing member forms an air seal between the ducts.

Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage and an inlet duct. The first cyclone stage comprises a cyclone chamber and a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid from an opening in the base of the cyclonic separator to the cyclone chamber, and the first dirt collection chamber surrounds at least partly the inlet duct and the second dirt collection chamber.

Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage and an inlet duct. The first cyclone stage comprises a cyclone chamber and a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid from an opening in the base of the cyclonic separator to the cyclone chamber, and the first dirt collection chamber surrounds at least partly the inlet duct and the second dirt collection chamber.

Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage, an inlet duct, and an outlet duct. The first cyclone stage comprises a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid to the first cyclone stage, and the outlet duct carries fluid from the second cyclone stage. The first dirt collection chamber then surrounds at least partly the inlet duct and the outlet duct.

Abstract: A cyclonic separator comprising a cyclone chamber defined between an outer wall and a shroud. The shroud comprises an inlet opening through which fluid enters the cyclone chamber, and a plurality of perforations through which fluid exits the cyclone chamber. Fluid within the cyclone chamber is then free to spiral about the shroud and over the inlet opening.

Abstract: A vacuum cleaner has a removable cyclonic separator that includes a cyclone chamber; a dirt-collection chamber, open at one end; and an outlet duct from the cyclone chamber. An open end of the outlet duct is arranged for connection to a motor intake duct on the cleaner, the outlet duct and dirt collection chamber sharing a common wall section which divides the open end of the outlet duct from the open end of the dirt collection chamber. A cover closes off the open end of the dirt collection chamber and can be opened to allow access to the dirt collection chamber for emptying. When the cover is in the closed position, a cover sealing member forms an air seal between the cover and the common wall section. When the outlet duct is connected to the motor inlet duct, an outlet duct sealing member forms an air seal between the ducts.

Abstract: A vacuum cleaner comprises a removable dust separator. The dust separator has an inlet duct and an outlet duct. The inlet duct is arranged for fluid connection to a dirt-air duct on the cleaner, and the outlet duct is arranged for fluid connection to a motor intake duct on the cleaner. In accordance with the invention, the inlet duct and outlet duct share a common wall which divides the open ends of the ducts, an inlet duct sealing member is provided for forming an air-seal between the inlet duct and the dirty-air duct, and an outlet duct sealing member is provided for forming an air seal between the outlet duct and the motor intake duct. Both seals are thus required to fail in order to short-circuit the two dirty-air duct and the motor intake duct, despite there being a common wall section between the inlet duct and the outlet ducts.

Abstract: A domestic appliance includes a head divided into a first rotatable member and a second rotatable member, and a drive mechanism for rotating the head about a first axis while simultaneously rotating the first rotatable member about a second axis and the second rotatable member about a third axis. Each of the second axis and the third axis is angled to and preferably intersects the first axis. When viewed in a direction extending along the second axis towards the first axis, the drive mechanism rotates the first rotatable member about the second axis in a first angular direction and the second rotatable member about the third axis in a second angular direction opposite to the first angular direction.

Abstract: A domestic appliance includes a head divided into a first rotatable member and a second rotatable member, and a drive mechanism for rotating the head about a first axis while simultaneously rotating the first rotatable member about a second axis and the second rotatable member about a third axis. Each of the second axis and the third axis is angled to and preferably intersects the first axis. When viewed in a direction extending along the second axis towards the first axis, the drive mechanism rotates the first rotatable member about the second axis in a first angular direction and the second rotatable member about the third axis in a second angular direction opposite to the first angular direction.