US2025386913A1PendingUtilityA1

Hair curling device

Assignee: DU XIAODIANPriority: Jun 19, 2024Filed: Jul 16, 2024Published: Dec 25, 2025
Est. expiryJun 19, 2044(~17.9 yrs left)· nominal 20-yr term from priority
Inventors:Xiaodian Du
A45D 2/367A45D 2/127
46
PatentIndex Score
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Cited by
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Claims

Abstract

A hair curling device includes a flexible filling structure and a flexible wrapping layer, the flexible filling structure is in a strip shape and made of a thermal storage material, and the flexible wrapping layer is sheathed on the filling structure. The hair curling device can shorten the curling time and make it convenient for users to use.

Claims

exact text as granted — not AI-modified
1 . A hair curling device, comprising:
 a flexible filling structure ( 2 ), wherein the flexible filling structure ( 2 ) is in a strip shape and is made of a microwave-oven heatable material, wherein the microwave-oven heatable material is capable of storing heat; and   a flexible wrapping layer ( 1 ), wherein the flexible wrapping layer ( 1 ) is sheathed on the flexible filling structure ( 2 );   wherein the hair curling device is configured without any electrical circuit; the microwave-oven heatable material, after being heated in a microwave oven, is at a temperature within a range of 50 to 60° C.   
     
     
         2 . The hair curling device as claimed in  claim 1 , wherein the flexible filling structure ( 2 ) comprises: a middle part ( 212 ) and two curling parts ( 213 ); when the hair curling device is in use, the middle part ( 212 ) is placed above a head of a user, and the two curling parts ( 213 ) hang down to ears of the user to wind hair of the user around each of the two curling parts ( 213 ). 
     
     
         3 . The hair curling device as claimed in  claim 2 , wherein the middle part ( 212 ) is in a flat shape configured to fit on the head of the user. 
     
     
         4 . The hair curling device as claimed in  claim 2 , wherein each of the two curling parts ( 213 ) defines grooves configured to make a part of each of the two curling parts ( 213 ) concave to form a folded area ( 211 ), and each of the two curling parts ( 213 ) is foldable at the grooves. 
     
     
         5 . The hair curling device as claimed in  claim 4 , wherein the grooves ( 214 ) of each of the two curling parts ( 213 ) are arc-shaped grooves ( 215 ), and a number of the grooves ( 214 ) of each of the two curling parts ( 213 ) is two; and the two arc-shaped grooves ( 215 ) of each of the two curling parts ( 213 ) are symmetrically defined on two sides ( 216 ) of the curling part ( 213 ) along a central axis (L) of the curling part ( 213 ) and are concave towards the central axis (L) of the curling part ( 213 ). 
     
     
         6 . The hair curling device as claimed in  claim 2 , wherein a cross-section of each of the two curling parts ( 213 ) is circular or quasi-circular. 
     
     
         7 . The hair curling device as claimed in  claim 2 , further comprising:
 connection structures ( 3 ), wherein the connection structures ( 3 ) are hair rings ( 31 ), and when the hair curling device is in use, the hair rings ( 31 ) tie the hair of the user tightly onto the two curling parts ( 213 ), respectively.   
     
     
         8 . The hair curling device as claimed in  claim 2 , further comprising:
 connection structures ( 3 ), wherein the connection structures ( 3 ) are two first ties ( 32 ), and the two first ties ( 32 ) are disposed at two ends ( 11 ) of the wrapping layer ( 1 ), respectively; after the two curling parts ( 213 ) are crossed at a back of the head of the user, the two curling parts ( 213 ) are tied tightly at a forehead position of the user by the two first ties ( 32 ).   
     
     
         9 . The hair curling device as claimed in  claim 2 , wherein the flexible filling structure ( 2 ) comprises a first end ( 221 ), a heating part ( 21 ) and a second end ( 222 ); when the hair curling device is in use, the first end ( 221 ) and the second end ( 222 ) are connected to form a closed loop, and hair of a user is wound around the heating part ( 21 ). 
     
     
         10 . The hair curling device as claimed in  claim 9 , wherein the heating part ( 21 ) has a flat structure. 
     
     
         11 . The hair curling device as claimed in  claim 9 , further comprising:
 connection structures ( 3 ), wherein the connection structures ( 3 ) are two second ties ( 33 ), and the two second ties ( 33 ) are disposed at two ends ( 11 ) of the wrapping layer ( 1 ), respectively; the two second ties ( 33 ) are tightly tied together for a connection of the two second ties ( 33 ).   
     
     
         12 . The hair curling device as claimed in  claim 9 , further comprising:
 connection structures ( 3 ), wherein the connection structures ( 3 ) are two extension parts ( 34 ), and the two extension parts ( 34 ) are disposed at two ends ( 11 ) of the wrapping layer ( 1 ), respectively; the two extension parts ( 34 ) are provided with connecting pieces ( 5 ), respectively; and the connecting pieces are configured to connect the two extension parts ( 34 ) together.   
     
     
         13 . The hair curling device as claimed in  claim 12 , wherein the connecting pieces ( 5 ) are snap fasteners ( 35 ). 
     
     
         14 . The hair curling device as claimed in  claim 9 , further comprising:
 a connection structure ( 3 ), wherein the connection structure ( 3 ) is an elastic part ( 36 ), the elastic part ( 36 ) comprises: a first connecting end ( 361 ) and a second connecting end ( 362 ), the first connecting end ( 361 ) and the second connecting end ( 362 ) are respectively connected to two ends ( 11 ) of the wrapping layer ( 1 ), thereby to make the elastic part ( 36 ) and the wrapping layer ( 1 ) to form a closed loop.   
     
     
         15 . The hair curling device as claimed in  claim 1 , wherein the flexible filling structure ( 2 ) comprises: a first part ( 22 ) and a second part ( 23 ), and the wrapping layer ( 1 ) comprises two accommodating parts ( 12 ) and a soft package part ( 13 ) disposed between the two accommodating parts ( 12 ); the first part ( 22 ) and the second part ( 23 ) are respectively accommodated in the two accommodating parts ( 12 ), two ends ( 11 ) of the wrapping layer ( 1 ) are extended to form two connecting parts, respectively, and the soft package part ( 13 ) and each connecting part ( 14 ) are provided with connecting pieces ( 5 ). 
     
     
         16 . The hair curling device as claimed in  claim 15 , wherein the connecting pieces ( 5 ) of the soft package part ( 13 ) comprise a plurality of female snaps ( 351 ), and the connecting piece ( 5 ) of each connecting part ( 14 ) comprises a male snap ( 352 ); each male snap ( 352 ) is buckled with one of the plurality of female snaps ( 351 ) configured to adjust a tightness of the hair curling device. 
     
     
         17 . (canceled) 
     
     
         18 . The hair curling device as claimed in  claim 1 , wherein the thermal storage material is a silicone material. 
     
     
         19 . The hair curling device as claimed in  claim 1 , wherein the wrapping layer ( 1 ) is made of flannelette. 
     
     
         20 . The hair curling device as claimed in  claim 1 , wherein the thermal storage material is ceramic particles. 
     
     
         21 . A hair curling method, comprising:
 placing the hair curling device according to  claim 1  in a microwave oven and heating the hair curling device to enable the hair curling device to reach a temperature within a range between 50 to 60° C.; and   applying the hair curling device to hair of a user to cause the hair to be wavy and curled.

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