Attachment for a hand held appliance

Patent metadata

Field	Value
Publication number	US-2016206075-A1
Application number	US-201615003674-A
Country	US
Kind code	A1
Filing date	Jan 21, 2016
Priority date	Jan 21, 2015
Publication date	Jul 21, 2016
Grant date	—

Abstract

An attachment for a hand held appliance, the attachment having a first wall, and a bung housed within the first wall wherein each of the first wall and the bung are moulded as a single unit which are subsequently joined together. One of the first wall and the bung may include a locating rib and the other of the first wall and the bung may include a locating recess and the locating rib and locating recess are adapted to cooperate together to position the bung with respect to the first wall. In addition to the locating rib and locating recess, the first wall and the bung may be secured using one or more of gluing, welding and screwing the parts together.

First claim

1 . An attachment for a hand held appliance, the attachment having a first wall and a bung housed within the first wall wherein each of the first wall and the bung are moulded as a single unit which are subsequently joined together.

2 . The attachment of claim 1 , wherein one of the first wall and the bung comprises a locating rib and the other of the first wall and the bung comprises a locating recess and wherein the locating rib and locating recess are adapted to cooperate together to position the bung with respect to the first wall.

3 . The attachment of claim 2 , wherein in addition to the locating rib and locating recess, the first wall and the bung are secured using one or more of gluing, welding and screwing the parts together.

4 . The attachment of claim 1 , wherein the attachment comprises a fluid flow path extending between the first wall and the bung.

5 . The attachment of claim 4 , wherein the fluid flow path extends from a first fluid inlet into the attachment.

6 . The attachment of claim 5 , wherein the first fluid inlet is annular.

7 . The attachment of claim 1 , wherein the attachment further comprises a sleeve extending about the first wall.

8 . The attachment of claim 7 , wherein the sleeve is moulded as a single unit and is subsequently joined with the first wall.

9 . The attachment of claim 1 , wherein the first wall comprises at least one protrusion extending towards the sleeve.

10 . The attachment of claim 9 , wherein the sleeve comprises at least one cooperating protrusion extending towards the first wall.

11 . The attachment of claim 10 , wherein the at least one protrusion and the at least one cooperating protrusion cooperate together when the sleeve and the first wall are assembled to provide a defined position for the sleeve with respect to the first wall.

12 . The attachment of claim 11 , wherein at least one of the at least one protrusion and the at least one cooperating protrusion comprises a locating feature which locates the sleeve with respect to the first wall in the defined position.

13 . The attachment of claim 10 , wherein the attachment has a first part and a second part, wherein the first part is conical and the second part is generally elliptical.

14 . The attachment of claim 13 , wherein the at least one protrusion and the at least one cooperating protrusion are located in the first part of the attachment.

15 . The attachment of claim 7 , wherein the attachment comprises a second fluid flow path extending between the first wall and the sleeve.

16 . The attachment of claim 15 , wherein the second fluid flow path extends from a fluid inlet formed between the first wall and the sleeve.

17 . A hand held appliance comprising the attachment of claim 1 .

18 . A hair care appliance comprising the attachment of claim 1 .

19 . A hairdryer comprising the attachment of claim 1 .

20 . A hair care appliance comprising: a handle and a body, a primary fluid flow path extending from a primary fluid inlet into the appliance to a primary fluid outlet for emitting the fluid flow from a front end of the body, a fan unit for drawing primary flow into the primary fluid inlet and an attachment, the attachment having a first wall and a bung housed within the first wall wherein each of the first wall and the bung are moulded as a single unit which are subsequently joined together wherein the attachment comprises a fluid flow path extending between the first wall and the bung and, when the attachment is attached to the appliance, the fluid flow path is in fluid communication with the primary fluid outlet.

21 . The appliance of claim 20 , wherein the primary fluid outlet is annular.

22 . The appliance of claim 20 , wherein, the attachment comprises a sleeve extending about the first wall and a second fluid flow path extending between the first wall and the sleeve wherein the second fluid flow path extends from a fluid inlet formed between the first wall and the sleeve.

Assignees

• Dyson Technology Ltd

Inventors

• Stephens Philip Jonathan
• Smith Stephen Farrar

Classifications

• B05B1/02

  designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, {or having an outlet of particular shape}(B05B1/26, B05B1/28, B05B1/34 take precedence) · CPC title

• A45D20/12 Primary

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

• A45D20/122 Primary

  Diffusers, e.g. for variable air flow · CPC title

• F24H3/0423

  hand-held air guns · CPC title