IP Library Granted Patent US 8,438,699
Granted Patent B2
US 8,438,699 · App. 12/900,065 · Granted May 14, 2013

Surface treating appliance

Inventors: James Dyson (Malmesbury, GB); Peter David Gammack (Malmesbury, GB); Stephen Benjamin Courtney (Malmesbury, GB); Michael Anthony Saunders (Malmesbury, GB)
Assignee: Dyson Technology Limited
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Quick Facts
Patent No.
US 8,438,699
App. No.
12/900,065
Granted
May 14, 2013
Kind
B2
Abstract

An upright surface treating appliance includes a main body having a user operable handle, and a support assembly for allowing the appliance to be rolled along a surface using the handle. The support assembly includes a yoke and a pair of wheels rotatably connected to the yoke, the yoke being shaped so that a section of the yoke lies between the rims of the wheels. A surface treating head is connected to the yoke. The main body is pivotably connected to the yoke for movement about a pivot axis passing between the wheels, and so that a part of the main body is located between the rims of the wheels. As the main body is pivoted about said axis from an upright position to a reclined position, the spacing between said section of the yoke and said part of the main body increases, and so a shield is provided for covering the gap so formed between said section of the yoke and said part of the main body to prevent dirt and dust from passing into the support assembly through the gap.

Claims (20)

1. An upright surface treating appliance comprising:

a main body comprising a user operable handle;

a support assembly for allowing the appliance to be rolled along a surface using the handle, the support assembly comprising a yoke and a pair of wheels rotatably connected to the yoke, the yoke being shaped so that a section of the yoke lies between the rims of the wheels; and

a surface treating head connected to the yoke;

the main body being pivotable relative to the yoke about a pivot axis passing between the wheels, and so that a part of the main body is located between rims of the wheels, whereby the spacing between said section of the yoke and said part of the main body increases as the main body is pivoted about said axis;

the main body comprising a shield for covering a gap between said section of the yoke and said part of the main body.

2. The appliance of claim 1 , wherein the shield and said section of the yoke each have a curved outer surface.

3. The appliance of claim 2 , wherein the curvature of the outer surface of the shield is substantially the same as the curvature of the inner surface of said section of the yoke.

4. The appliance of claim 2 , wherein the wheels are dome-shaped.

5. The appliance of claim 4 , wherein the wheels have a substantially spherical curvature.

6. The appliance of claim 5 , wherein the curvature of the outer surface of the wheels is substantially the same as the curvature of the outer surface of said section of the yoke.

7. The appliance of claim 1 , wherein said part of the main body is located adjacent said section of the yoke when the main body is in the upright position.

8. The appliance of claim 1 , wherein the shield is located beneath said section of the yoke when the main body is in the upright position.

9. The appliance of claim 1 , wherein each wheel is rotatable about a respective rotational axis, each rotational axis being angled relative to the pivot axis.

10. The appliance of claim 9 , wherein the shield comprises tapering side walls.

11. The appliance of claim 1 , comprising at least one electrical component mounted on an inner surface of the shield.

12. The appliance of claim 1 , wherein said part of the main body comprises a fluid duct.

13. The appliance of claim 12 , wherein the shield is mounted on the fluid duct.

14. The appliance of claim 13 , wherein the shield at least partially surrounds the fluid duct.

15. The appliance of claim 1 , comprising a casing housing a fan unit for drawing a fluid flow through the appliance, and wherein the casing is located between the wheels.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2010
From: DYSON, JAMES; GAMMACK, PETER DAVID; COURTNEY, STEPHEN BENJAMIN; SAUNDERS, MICHAEL ANTHONY
To: DYSON TECHNOLOGY LIMITED
Reel/Frame 025471/0085 →
Priority Claims (1)
GB 0918026.6 · Oct 15, 2009 · national
Continuity (1)
Related Publication 20110088195A1 · Apr 21, 2011