US2010287718A1PendingUtilityA1

Cosmetic brush

Assignee: RND GROUP KOREA INCPriority: Jan 23, 2008Filed: Oct 30, 2008Published: Nov 18, 2010
Est. expiryJan 23, 2028(~1.5 yrs left)· nominal 20-yr term from priority
Inventors:Yoon-Hoi Kim
A46B 3/04A46B 2200/1046A46B 3/005A46D 1/00A46B 9/021A45D 34/045A45D 34/04A45D 34/00
56
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Claims

Abstract

A cosmetic brush having a stem and a brush part is disclosed. The brush part, comprising bristles formed through injection molding, is provided on an end of the stem. The brush part includes a base for coupling the brush part to the stem, and the bristles which are integrated with the base through injection molding have a fine thickness. Each of the bristles is formed through injection molding to have thickness ranging from 0.05 mm to 0.15 mm. The brush part is manufactured through injection molding, thus enabling the use of various materials and affording various designs, therefore improving the competitiveness of a product. Further, structure and manufacturing process are simplified, so that manufacturing and equipment costs are reduced.

Claims

exact text as granted — not AI-modified
1 . A cosmetic brush having a stem and a brush part, wherein the brush part, comprising bristles formed through injection molding, is provided on an end of the stem. 
     
     
         2 . The cosmetic brush according to  claim 1 , wherein the brush part comprises:
 a base for coupling the brush part to the stem; and   the bristles integrated with the base through injection molding, and having a fine thickness.   
     
     
         3 . The cosmetic brush according to  claim 2 , wherein each of the bristles is formed through injection molding to have a thickness ranging from 0.05 mm to 0.15 mm. 
     
     
         4 . The cosmetic brush according to  claim 2 , wherein the brush part and the stem are formed through double injection molding. 
     
     
         5 . The cosmetic brush according to  claim 4 , wherein a stem protrusion protrudes from an end of the stem, and a base hole is formed in the brush part to enclose the stem protrusion. 
     
     
         6 . The cosmetic brush according to  claim 4 , wherein a stem hole is recessed in an end of the stem, and a base protrusion is provided on the brush part to be fitted into the stem hole. 
     
     
         7 . The cosmetic brush according to  claim 2 , wherein the brush part and the stem are coupled to each other through fitting. 
     
     
         8 . The cosmetic brush according to  claim 7 , wherein a stem protrusion protrudes from an end of the stem, and a base hole is formed in the brush part to enclose the stem protrusion. 
     
     
         9 . The cosmetic brush according to  claim 7 , wherein a stem hole is recessed in an end of the stem, and a base protrusion is provided on the brush part to be fitted into the stem hole. 
     
     
         10 . The cosmetic brush according to  claim 2 , wherein the brush part and the stem are coupled to each other through adhering.

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