IP Library › Granted Patent US 12,520,921
Granted Patent B2
US 12,520,921 · App. 18/666,443 · Granted Jan 13, 2026

Hair dryer

Inventor: Wayne Ernest Conrad (Hampton, CA)
Assignee: Omachron Intellectual Property Inc.
A45D20/12B01D45/08B01D45/14B01D45/16B01D50/20
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Quick Facts
Patent No.
US 12,520,921
App. No.
18/666,443
Granted
Jan 13, 2026
Kind
B2
Abstract

A hair dryer is operational in a first mode of operation in which a first air flow path extends from an air inlet and exits through a first air outlet provided in a front face of the air dryer, the first air outlet is centrally positioned in the front face and, in operation, directs air in a direction that is generally axially forwardly. The hair dryer is also operational in a second mode of operation in which a second air flow path extends from the air inlet to a second air outlet, wherein the air flow path includes an annular flow portion and wherein the second air outlet comprises a slot.

Claims (29)

1 . A hair dryer that is operational in a first mode of operation and in a second mode of operation wherein:

(a) in the first mode of operation, a first air flow path extends from an air inlet and exits through a first air outlet provided in a first face of the hair dryer, the first air outlet is centrally positioned in the first face and, in operation, directs air in a direction that is generally axially outwardly; and,

(b) in the second mode of operation, a second air flow path extends from the air inlet to a second air outlet, wherein the second air flow path includes an annular flow portion and wherein the second air outlet comprises a linear slot forming an air outlet port, and

wherein, in the first mode of operation, the linear slot is disconnected from air flow communication with the first air flow path.

2 . The hair dryer of claim 1 wherein the first air outlet comprises a circular port at the first face of the hair dryer.

3 . The hair dryer of claim 2 wherein, in the first mode of operation, air exits through the first air outlet at a first velocity and, in the second mode of operation, air exits through the linear slot at a second velocity that is greater than the first velocity.

4 . The hair dryer of claim 3 wherein the second air flow path includes a non-annular portion that is upstream of the annular portion.

5 . The hair dryer of claim 1 wherein the second air outlet is integrally formed as part of a main body of the hair dryer.

6 . The hair dryer of claim 1 wherein, in the second mode of operation, air exits through the linear slot in a direction at an angle of more than 25° to the generally axially outward direction.

7 . The hair dryer of claim 1 wherein in the first mode of operation air exits the hair dryer in the direction that is generally axially outwardly and not through the linear slot.

8 . The hair dryer of claim 1 wherein, the second air flow path is closed in the first mode of operation and, in the first mode of operation, the second air flow path is closed by a redirecting member between the air inlet and the second air outlet.

9 . The hair dryer of claim 1 wherein, in the second mode of operation, air exits through the slot at a location spaced axially outwardly of the first air outlet.

10 . The hair dryer of claim 1 wherein a longest dimension of the linear slot extends axially.

11 . The hair dryer of claim 1 wherein, in the second mode of operation, air exits through the second air outlet in a direction at an angle of more than 25° to the generally axially outward direction.

12 . A hair dryer that is operational in a first mode of operation and in a second mode of operation wherein:

(a) in the first mode of operation, a first air flow path extends from an air inlet and exits through a first air outlet provided in a first face of the air dryer, the first air outlet is centrally positioned in the first face and, in operation, directs air in a direction that is generally axially outwardly; and,

(b) in the second mode of operation, a second air flow path extends from the air inlet to a second air outlet, wherein the second air flow path includes an annular flow portion and wherein the second air outlet comprises a linear slot forming an air outlet port, and

wherein, in the first mode of operation, air exits through the first air outlet at a first velocity and, in the second mode of operation, air exits through the linear slot at a second velocity that is greater than the first velocity.

13 . The hair dryer of claim 12 wherein, in the second mode of operation, air exits through the second air outlet in a direction at an angle of more than 25° to the generally axially outward direction.

14 . A hair dryer that is operational in a first mode of operation and in a second mode of operation wherein:

(a) in the first mode of operation, a first air flow path extends from an air inlet and exits through a first air outlet provided in a first face of the hair dryer, the first air outlet is centrally positioned in the first face and, in operation, directs air in a direction that is generally outwardly along a central axis of the hair dryer; and,

(b) in the second mode of operation, a second air flow path extends from the air inlet to a second air outlet, the second air flow path includes an annular flow portion that is downstream from a non-annular flow portion, and the second air flow path including a transverse portion that is downstream of an air moving member of the hair dryer, the transverse portion extending generally transverse to the central axis, and

wherein, in the first mode of operation, the second air outlet is disconnected from air flow communication with the first air flow path.

15 . The hair dryer of claim 14 wherein the second air outlet comprises a linear slot forming an air outlet port.

16 . The hair dryer of claim 14 wherein the first air outlet comprises a circular port at the first face of the hair dryer.

17 . The hair dryer of claim 16 wherein the second air outlet comprises a linear slot forming an air outlet port.

18 . The hair dryer of claim 17 wherein, in the first mode of operation, air exits through the first air outlet at a first velocity and, in the second mode of operation, air exits through the linear slot at a second velocity that is greater than the first velocity.

19 . The hair dryer of claim 14 wherein the second air outlet is integrally formed as part of a main body of the hair dryer.

20 . The hair dryer of claim 14 wherein in the first mode of operation air exits the hair dryer in the direction that is generally axially outwardly and not through the second air outlet.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2024
From: CONRAD, WAYNE ERNEST
To: OMACHRON INTELLECTUAL PROPERTY INC.
Reel/Frame 068598/0509 →
Continuity (10)
Continuation 18509160 · Nov 14, 2023
Continuation 17175533 · Feb 12, 2021
Continuation In Part 17094330 · Nov 10, 2020
Continuation In Part 16944388 · Jul 31, 2020
Continuation In Part 16938057 · Jul 24, 2020
Continuation In Part 16837996 · Apr 1, 2020
Provisional Application 63044788 · Jun 26, 2020
Provisional Application 63035282 · Jun 5, 2020
Provisional Application 63027006 · May 19, 2020
Related Publication 20240315417A1 · Sep 26, 2024
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