Vacuum cleaner

Patent metadata

Field	Value
Publication number	US-9788697-B2
Application number	US-201514932734-A
Country	US
Kind code	B2
Filing date	Nov 4, 2015
Priority date	Dec 22, 2011
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A vacuum cleaner comprising a cyclonic separating apparatus including a dirty air inlet, a main body connected to the cyclonic separating apparatus and a motor and fan unit for generating an airflow through the cyclonic separating apparatus from the dirty air inlet to a clean air outlet, wherein the cyclonic separating apparatus includes at least a first cyclonic cleaning stage and an elongate filter arranged fluidly downstream from the first cyclonic cleaning stage, the elongate filter being housed in a duct at least partially surrounded by the first cleaning stage, and wherein the filter comprises an inlet portion and a filter portion defining a generally tubular filter chamber, the inlet portion including one or more radially facing inlets to permit air to flow into the inlet portion in a radial direction from where the air flows from the inlet portion to the filter chamber in an axial direction.

First claim

The invention claimed is:

1. A handheld vacuum cleaner comprising:
a dirty air inlet and a clean air outlet;
a cyclonic separator located downstream of the dirty air inlet, the cyclonic separator having a separator axis;
a first portion intersecting, on one side of the separator axis, a plane in which the separator axis lies, the first portion comprising
a motor and fan unit arranged to generate an airflow from the dirty air inlet to the clean air outlet, and
a handle oriented in a pistol-grip formation;

a filter compartment located downstream of the cyclonic separator;
a removable filter arranged within the filter compartment such that the filter extends around the separator axis, wherein the filter is removable from the filter compartment through an opening in a top portion of the vacuum cleaner; and
a removable cap that closes the opening in the top portion of the vacuum cleaner and that forms at least part of an outer surface of the vacuum cleaner.

2. The handheld vacuum cleaner of claim 1 , wherein the handle is inclined at a shallow angle with respect to the separator axis.

3. The handheld vacuum cleaner of claim 1 , wherein the handle is inclined with respect to the separator axis at an angle of approximately 15 degrees.

4. The handheld vacuum cleaner of claim 1 , wherein the cap engages with the opening.

5. The handheld vacuum cleaner of claim 1 , wherein the separator axis and the handle lie in the same plane.

6. The handheld vacuum cleaner of claim 1 , further comprising a dirt collecting bin, wherein the dirt collecting bin comprises an outer wall comprising a lower portion, a bin base pivotally attached to the lower portion of the outer wall and a catch, wherein the bin base is held in a closed position by the catch.

7. The handheld vacuum cleaner of claim 6 , wherein the catch is arranged at a region of the dirt collecting bin which is opposite the pivotal attachment.

8. The handheld vacuum cleaner of claim 1 , wherein the cyclonic separator has a tubular screen that extends coaxially with the separator axis, at least a portion of the tubular screen forming an outlet from the cyclonic separator, and wherein the filter compartment has an inlet positioned above the portion of the tubular screen forming the outlet from the cyclonic separator.

9. The handheld vacuum cleaner of claim 1 , further comprising an air inlet nozzle that extends along an axis that intersects the separator axis.

10. A handheld vacuum cleaner comprising:
a dirty air inlet and a clean air outlet;
a cyclonic separator located downstream of the dirty air inlet, the cyclonic separator having a separator axis;
a first portion intersecting, on one side of the separator axis, a plane in which the separator axis lies, the first portion comprising
a motor and fan unit arranged to generate an airflow from the dirty air inlet to the clean air outlet, and
a handle oriented in a pistol-grip formation;

a filter compartment located downstream of the cyclonic separator;
a removable filter arranged within the filter compartment such that the filter extends around the separator axis, wherein the filter is removable from the filter compartment through an opening above the cyclonic separator; and
a removable cap that closes the opening above the cyclonic separator and that forms at least part of an outer surface of the vacuum cleaner.

Assignees

• Dyson Technology Ltd

Inventors

• Peace Michael James

Classifications

• A47L9/1666 Primary

  with filtering means · CPC title

• A47L9/1658

  Construction of outlets · CPC title

• A47L9/1641

  for parallel flow · CPC title

• A47L9/1633

  Concentric cyclones · CPC title

• A47L9/1616

  Multiple arrangement thereof · CPC title