IP Library Granted Patent US 12,178,301
Granted Patent B2
US 12,178,301 · App. 17/121,058 · Granted Dec 31, 2024

Glass hair styling iron with heat and light emitting source

Inventors: Sophia Wojczak (Harrison, NY); Paul James Carrubba (Baldwin, NY); Daniel Bishop (Trumbull, CT)
Assignee: Conair LLC
A45D1/16A45D1/04A45D1/28A45D2200/205
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Quick Facts
Patent No.
US 12,178,301
App. No.
17/121,058
Granted
Dec 31, 2024
Kind
B2
Abstract

A hair styling iron includes a housing, a mandrel extending longitudinally from the housing, the mandrel having a proximal end adjacent to the housing, and a distal end opposite the proximal end, and a plurality of light emitting elements within the mandrel. The plurality of light emitting elements are light emitting diodes that emit light having a wavelength between about 620 to about 750 nm. A cross-sectional area of the mandrel at the proximal end is greater than the cross-sectional area of the mandrel at the distal end.

Claims (59)

1. A hair styling iron, comprising:

a housing;

a mandrel extending longitudinally from the housing, the mandrel having a proximal end adjacent to the housing, and a distal end opposite the proximal end; and

a plurality of light emitting elements within the mandrel, the plurality of light emitting elements being arranged in at least two linear arrays;

wherein the plurality of light emitting elements are light emitting diodes that emit light having a wavelength between about 620 to about 750 nm; and

wherein a cross-sectional area of the mandrel at the proximal end is greater than the cross-sectional area of the mandrel at the distal end;

wherein the mandrel is formed from glass and is both light and radiation transmissive over an entire circumferential outer surface of the mandrel.

2. The hair styling iron of claim 1 , wherein:

the mandrel has a tapered or conical shape.

3. The hair styling iron of claim 1 , further comprising:

a tip extending from the distal end of the mandrel.

4. The hair styling iron of claim 3 , wherein:

the tip is painted or provided with an insulative material configured to inhibit heating of an exterior surface of the tip by radiation emitting elements positioned within the mandrel.

5. The hair styling iron of claim 1 , wherein:

the at least two linear arrays are parallel, linear arrays.

6. The hair styling iron of claim 1 , wherein:

the at least two linear arrays are non-parallel, linear arrays.

7. A hair styling iron, comprising:

a housing;

a mandrel extending longitudinally from the housing;

a first linear array of light emitting elements within the mandrel; and

a second linear array of light emitting elements within the mandrel;

wherein the first linear array and second linear array are parallel and arranged to emit light out of opposing sides of the mandrel away from one another and in opposite directions.

8. The hair styling iron of claim 7 , wherein:

the mandrel is formed from a light and/or radiation transmissive material.

9. The hair styling iron of claim 8 , wherein:

the mandrel is formed from glass.

10. The hair styling iron of claim 8 , wherein:

the mandrel has a tapered or conical shape.

11. The hair styling iron of claim 8 , wherein:

the mandrel is formed from glass; and

wherein the mandrel has a tapered or conical shape.

12. The hair styling iron of claim 11 , wherein:

the light emitting elements are light emitting diodes that emit light having a wavelength between about 620 to about 750 nm.

13. A hair styling iron, comprising:

a housing;

a mandrel extending longitudinally from the housing;

a first linear array of light emitting elements within the mandrel; and

a second linear array of light emitting elements within the mandrel;

wherein the first linear array and second linear array are angled with respect to one another such that the first linear array and the second linear array are not parallel, and are arranged to emit light out of opposing sides of the mandrel away from one another and in opposite directions.

14. The hair styling iron of claim 13 , wherein:

the first linear array of light emitting elements and the second linear array of light emitting elements are both mounted on a single strip bent into a V-shape.

15. The hair styling iron of claim 13 , wherein:

the first linear array of light emitting elements and the second linear array of light emitting elements are mounted on first and second strips, respectively, that do not contact one another.

16. The hair styling iron of claim 13 , wherein:

the first linear array of light emitting elements and the second linear array of light emitting elements are mounted at an angle that corresponds to a shape of an outer surface of the mandrel.

17. The hair styling iron of claim 16 , wherein:

the outer surface of the mandrel has a conical or tapered shape.

18. The hair styling iron of claim 13 , wherein:

the light emitting elements are light emitting diodes that emit light having a wavelength between about 620 to about 750 nm.

19. A hair styling iron, comprising:

a housing;

a mandrel extending longitudinally from the housing;

a light tube within the mandrel;

a first light emitting element positioned at a proximal end of the light tube and configured to emit light into the light tube;

a second light emitting element positioned at a distal end of the light tube and configured to emit light into the light tube; and

wherein the light tube is devoid of light emitting elements intermediate the first light emitting element and the second light emitting element.

20. The hair styling iron of claim 19 , wherein:

the light emitting elements are light emitting diodes that emit light having a wavelength between about 620 to about 750 nm.

Assignments (4)
U.S. SECOND LIEN TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT SUPPLEMENT Recorded Sep 19, 2025
From: CONAIR LLC; CONAIR CONSUMER PRODUCTS ULC
To: BLUE OWL CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 072902/0786 →
U.S. FIRST LIEN TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT SUPPLEMENT Recorded Sep 18, 2025
From: CONAIR LLC; CONAIR CONSUMER PRODUCTS ULC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 072910/0063 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2021
From: CONAIR CORPORATION
To: CONAIR LLC
Reel/Frame 057216/0011 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2020
From: WOJCZAK, SOPHIA; CARRUBBA, PAUL JAMES; BISHOP, DANIEL
To: CONAIR CORPORATION
Reel/Frame 054641/0125 →
Continuity (1)
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