IP Library › Granted Patent US 12,403,409
Granted Patent B2
US 12,403,409 · App. 18/345,264 · Granted Sep 2, 2025

Curly hair doll

Inventor: Zhiyan Meng (Guangdong, CN)
A63H3/44A63H3/02A63H9/00
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Quick Facts
Patent No.
US 12,403,409
App. No.
18/345,264
Granted
Sep 2, 2025
Kind
B2
Abstract

Systems and methods related to a curly hair doll are provided. A doll includes a head and a plurality of material strands coupled to the head to embody curls of hair. Each material strand may define a three-dimensional (3D) helix formed by a two-dimensional (2D) spiral cut into a flat piece of flexible material. Additional systems and associated methods are also provided.

Claims (32)

1. A doll comprising:

a head; and

a plurality of material strands coupled to the head to embody curls of hair, wherein each material strand defines a three-dimensional (3D) helix formed by a two-dimensional (2D) spiral cut into a flat piece of flexible material.

2. The doll of claim 1 , wherein the 2D spiral is stamped into the flat piece of flexible material.

3. The doll of claim 1 , wherein the 2D spiral comprises an Archimedean spiral, an involute spiral, or an Atzema spiral.

4. The doll of claim 1 , wherein each material strand comprises:

a first end attached to the head; and

an unattached second end comprising a rounded end.

5. The doll of claim 1 , wherein the plurality of material strands comprises:

a first plurality of material strands coupled together to define a first pigtail; and

a second plurality of material strands coupled together to define a second pigtail.

6. The doll of claim 5 , wherein the first and second pigtails are coupled to opposite sides of the head.

7. The doll of claim 5 , further comprising a hair accessory at each attachment of a pigtail to the head.

8. The doll of claim 7 , wherein the hair accessory comprises at least one of a bow, a pin, a band, or a clamp.

9. The doll of claim 1 , further comprising a body coupled to the head.

10. The doll of claim 1 , wherein the doll embodies a human.

11. A method of making a doll, the method comprising:

coupling a plurality of material strands to a head of the doll,

wherein each material strand defines a three-dimensional (3D) helix formed by a two-dimensional (2D) spiral cut into a flat piece of flexible material.

12. The method of claim 11 , further comprising forming the plurality of material strands, wherein the forming comprises stamping the 2D spiral into the flat piece of flexible material.

13. The method of claim 11 , wherein the 2D spiral comprises an Archimedean spiral, an involute spiral, or an Atzema spiral.

14. The method of claim 11 , wherein each material strand comprises:

a first end attached to the head; and

an unattached second end.

15. The method of claim 11 , wherein the coupling comprises:

coupling a first plurality of material strands together to define a first pigtail; and

coupling a second plurality of material strands together to define a second pigtail.

16. The method of claim 15 , wherein the coupling the plurality of material strands to the head of the doll comprises coupling the first and second pigtails to opposite sides of the head.

17. The method of claim 15 , further comprising coupling a hair accessory at each attachment of a pigtail to the head.

18. The method of claim 17 , wherein the hair accessory comprises at least one of a bow, a pin, a band, or a clamp.

19. The method of claim 11 , further comprising coupling a body to the head.

20. The method of claim 11 , wherein the doll embodies a human.

Priority Claims (1)
CN 202321569368.0 · Jun 19, 2023 · national
Continuity (1)
Related Publication 20240416251A1 · Dec 19, 2024
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