Hand held appliance

Patent metadata

Field	Value
Publication number	US-10021951-B2
Application number	US-201615297932-A
Country	US
Kind code	B2
Filing date	Oct 19, 2016
Priority date	Oct 21, 2015
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A hairdryer including an ionizing system and a heater wherein the ionizing system comprises an ion producing electrode and the ion producing electrode extends along an external periphery of the heater. The ion producing electrode may extend along the heater to a downstream end of the heater. The ion producing electrode may extend along the heater from an upstream end of the heater. The heater may be generally cylindrical and the ion producing electrode extends along a radially outer surface of the heater. The ion producing electrode may have a first part which extends along a first axis and the first part extends along the external periphery of the heater. The ion producing electrode may have a second part, which extends along a second axis, wherein the second part extends radially inwards from the external periphery of the heater.

First claim

The invention claimed is:

1. A hairdryer comprising an ionising system and a heater, wherein the ionising system comprises an ion producing electrode and the ion producing electrode has a first part which extends along a first axis and a second part substantially orthogonal to the first axis, and wherein the first part extends along an external periphery of the heater and the second part extends radially inwards from the external periphery of the heater across a flow path exiting from the heater.

2. The hairdryer of claim 1 , wherein the ion producing electrode extends along the heater to a downstream end of the heater.

3. The hairdryer of claim 1 , wherein the ion producing electrode extends along the heater from an upstream end of the heater.

4. The hairdryer of claim 1 , wherein the heater is generally cylindrical and the ion producing electrode extends along a radially outer surface of the heater.

5. The hairdryer of claim 1 , wherein the heater is surrounded by a wall and the ion producing electrode extends along an external periphery of the wall.

6. The hairdryer of claim 1 , wherein the ionising system comprises an ion generator and the ion producing electrode comprises a high tension wire which extends from the ion generator.

7. The hairdryer of claim 1 , wherein the ion producing electrode comprises a flat conductive needle.

8. The hairdryer of claim 1 , wherein
the ionising system comprises an ion generator; and
the ion producing electrode comprises a high tension wire which extends from the ion generator, a flat conductive needle, and a connector for connecting the flat conductive needle to the high tension wire.

9. The hairdryer of claim 8 , wherein the connector is located at or near an upstream end of the heater.

10. The hairdryer of claim 8 , wherein the heater is surrounded by a wall and the connector is located at or near an upstream end of the wall.

11. The hairdryer of claim 1 , further comprising an inner wall adapted to retain a downstream end of the heater in position within the hairdryer wherein the inner wall comprises a recess for accommodating the ion producing electrode.

12. The hairdryer of claim 11 , wherein the inner wall comprises an aperture through which the ion producing electrode projects.

13. The hairdryer of claim 12 , wherein the first part extends along the external periphery of the heater to the recess in the inner wall.

14. The hairdryer of claim 13 , wherein the second part extends through the aperture radially inwards from the external periphery of the heater and inner wall.

15. The hairdryer of claim 14 , wherein the first part and the second part are formed from a flat conductive needle.

16. The hairdryer of claim 13 , wherein the ion producing electrode comprises a third part and the third part extends from an ion generator to the first part.

17. The hairdryer of claim 16 , wherein the third part comprises a high tension wire.

Assignees

• Dyson Technology Ltd

Inventors

• Bobillier Ben Colin
• HOWE Frederick Anthony

Classifications

• A45D20/10 Primary

  Hand-held drying devices, e.g. air douches · CPC title

• A45D20/12 Primary

  Details thereof or accessories therefor, e.g. nozzles, stands · CPC title

• A45D2200/202

  Ionisation · CPC title

• A61N1/44

  Applying ionised fluids {(ion generators H01J37/00)} · CPC title

• A61N1/0472

  Structure-related aspects · CPC title