Hair dryer attachment

Patent metadata

Field	Value
Publication number	US-11185142-B1
Application number	US-202017139700-A
Country	US
Kind code	B1
Filing date	Dec 31, 2020
Priority date	Dec 31, 2020
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

An attachment for a hair dryer that is movable between a first position and a second position in order to alter one or more characteristics of the airflow therethrough. In one embodiment, an internal sliding element is movable within an outer housing in order to alter the internal flow paths inside the housing. In a second embodiment, movable arms cause changes to the shape of an outer housing made of a flexible and resilient material. Motion of the arms between positions causes a change in the shape of the attachment outlet.

First claim

We claim:

1. An attachment for a hair dryer, comprising:
a housing that defines an attachment inlet at a first end and an attachment outlet at a second end;
a sliding element receivable within the housing and movable between a first position and a second position, the sliding element having a rear surface and a front surface and an opening that extends therethrough from the rear surface to the front surface;
a first chamber located in the housing adjacent the attachment inlet, the first chamber defining a first chamber outlet that is located between the attachment inlet and the attachment outlet;
wherein the rear surface of the sliding element is closer to the attachment inlet at times the sliding element is in the first position than at times the sliding element is in the second position;
wherein the front surface of the sliding element is closer to the attachment inlet at times the sliding element is in the first position than at times the sliding element is in the second position; and
wherein at times the sliding element is in the first position, the sliding element is separated from the first chamber outlet by a first gap.

2. The attachment for a hair dryer of claim 1 , wherein at times the sliding element is in the second position, the sliding element is separated from the first chamber outlet by a second gap, the second gap being larger than the first gap.

3. The attachment for a hair dryer of claim 1 , wherein at times the sliding element is in the second position, the front surface of the sliding element is at or near the attachment outlet.

4. The attachment for a hair dryer of claim 1 further including an inner housing, the sliding element being located in the inner housing.

5. The attachment for a hair dryer of claim 4 , wherein the inner housing includes a cross-sectional area that is smaller at the second end than the first end.

6. The attachment for a hair dryer of claim 5 , wherein a slide lever is slidably coupled to at least one of the inner housing and housing, the slide lever being operable to move the sliding element between the first position and the second position.

7. The attachment for a hair dryer of claim 1 , wherein the first chamber is located in the housing adjacent the attachment inlet, the first chamber defining a first chamber outlet that is located between the attachment inlet and the attachment outlet.

8. The attachment for a hair dryer of claim 7 , wherein at times the sliding element is in the first position, the sliding element is separated from the first chamber outlet by a first gap.

9. An attachment for a hair dryer, comprising:
a housing that defines an attachment inlet at a first end and an attachment outlet at a second end;
a sliding element receivable within the housing and movable between a first position and a second position, the sliding element having a rear surface and a front surface and an opening that extends therethrough from the rear surface to the front surface;
wherein the rear surface of the sliding element is closer to the attachment inlet at times the sliding element is in the first position than at times the sliding element is in the second position;
wherein the front surface of the sliding element is closer to the attachment inlet at times the sliding element is in the first position than at times the sliding element is in the second position; and
wherein at times the sliding element is in the second position, the front surface of the sliding element is at or near the attachment outlet.

10. An attachment for a hair dryer, comprising:
a housing that defines an attachment inlet at a first end and an attachment outlet at a second end;
a sliding element receivable within the housing and movable between a first position and a second position, the sliding element having a rear surface and a front surface and an opening that extends therethrough from the rear surface to the front surface;
an inner housing, the sliding element being located in the inner housing;
wherein the rear surface of the sliding element is closer to the attachment inlet at times the sliding element is in the first position than at times the sliding element is in the second position;
wherein the front surface of the sliding element is closer to the attachment inlet at times the sliding element is in the first position than at times the sliding element is in the second position; and
wherein the inner housing includes a cross-sectional area that is smaller at the second end than the first end.

11. The attachment for a hair dryer of claim 1 , further comprising a first chamber located in the housing adjacent the attachment inlet, the first chamber defining a first chamber outlet that is located between the attachment inlet and the attachment outlet.

12. The attachment for a hair dryer of claim 11 , wherein at times the sliding element is in the first position, the sliding element is separated from the first chamber outlet by a first gap.

Assignees

• Sharkninja Operating Llc

Inventors

• Potter James Richard
• Richards Joshua Thomas
• Bailey Steven Luke

Classifications

• A45D20/124 Primary

  comprising rotating elements · CPC title

• A45D20/122 Primary

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